China Xiamen Juguangli Import & Export Co., Ltd Company News

The transparency of acrylic glass panels can usually reach around 92%, and some high-quality acrylic glass panels have even higher transparency, approaching around 93% -95%. The following is a more detailed introduction: Compared to ordinary glass The transmittance of ordinary glass is generally around 80% -90%, and the transparency of acrylic glass panels is significantly better than that of ordinary glass. Under the same thickness conditions, acrylic glass panels have a stronger ability to transmit light, allowing more light to pass through. The scattering phenomenon when light passes through is also less, making the visual effect clearer and more transparent. Factors affecting transparency Raw material purity: If the purity of the raw material used to produce acrylic glass panels is not high enough and contains a lot of impurities, these impurities will absorb and scatter light when it passes through, resulting in a decrease in transparency. High purity acrylic raw materials can ensure less loss of light during propagation, thereby improving transparency. Production process: For example, in the polymerization process, if the process parameters such as temperature, time, and stirring speed are not properly controlled, the internal structure of acrylic will be uneven, resulting in defects such as bubbles and cracks. These defects will seriously affect the transmission of light and reduce transparency. Adopting advanced production processes, such as bulk polymerization, and strictly controlling the parameters of each link, helps to produce highly transparent acrylic glass panels. Surface treatment: If the surface of acrylic glass panels is scratched, stained, or improperly treated during post-processing, such as cutting or carving without proper polishing, it will make the surface rough and uneven, increase light scattering, and reduce transparency. After fine surface treatment, such as polishing, cleaning and other processes, the surface can be kept smooth and flat, which helps to maintain high transparency. Performance in practical applications Display field: In scenes such as cosmetics display cabinets and jewelry display racks in shopping malls that require high display effects, the high transparency of acrylic glass panels can effectively showcase the details and luster of the exhibits, allowing customers to see the full picture of the exhibits clearly, as if the exhibits were not blocked by glass, greatly enhancing the display effect. Advertising signage: When used to create advertising lightboxes, signs, etc., its high transparency ensures that light can fully pass through the panel, making the advertising signage brighter and more eye-catching when illuminated at night. The clarity of text and patterns is high, which can better attract people's attention and play a good advertising and promotional role. In the field of optics: In some applications such as protective covers and observation windows of optical instruments, the high transparency of acrylic glass panels can ensure the normal transmission and transmission of light, and will not reduce the performance and accuracy of optical instruments due to the influence of the panel itself on light, ensuring the normal use of instruments and the accuracy of measurement results. Acrylic glass panels, with their high transparency, are widely used in many fields that require transparency. Under normal use and maintenance conditions, their transparency can remain stable for a long time and will not easily decrease like ordinary glass.

Raw rubber system 1) The combination of rubber and plastic is also a common method, and the use of high styrene and PVC/NBR alloy can also increase hardness. 2) Changing the type and grade of adhesive can also increase hardness (less commonly used)   Sulfurization promotion system 1) By adding vulcanizing agents to increase chain density and hardness, such as significantly increasing the amount of sulfur used, the hardness of rubber products can be improved to a certain extent when other materials remain unchanged in the production of recycled rubber products. (100 parts of glue, with a maximum sulfur dosage of 4-5 parts) 2) Add resin. Adding resin to the production of recycled rubber products can increase their hardness. 3) Some products undergo secondary vulcanization to increase cross-linking and hardness.   Reinforcement filling system 1) Add carbon black. Carbon black can be used as a filler in rubber mixtures to change the hardness of rubber products. 2) Changing the type of carbon black can significantly increase its hardness while maintaining the same rubber content. 3) Adding adhesive powder increases hardness and has a very good effect, but it is only suitable for molded products. Fourthly, the plasticizing softening system reduces the amount of rubber oil used. Rubber oil has a softening effect and expands when added to rubber products, reducing the interaction force between polymers. Reducing the amount of rubber oil is equivalent to reducing the softening effect of rubber products and improving their hardness.

We often find this phenomenon when using water bottles. Although the lid is tightened, there is still a small amount of water flowing out even when tilted. Therefore, you suspect that the lid was not properly closed the first time, and then you repeat the process twice, but the result is still the same. The direct cause of this problem is that the silicone ring inside the cup lid is damaged or misaligned. So what is this rubber ring? Almost all cup lids have a silicone ring for the water cup. Don't underestimate this small rubber pad. Without it, you may have to drink mineral water when traveling. One of the main purposes of this silicone ring is to prevent leakage. We can imagine that if we remove this rubber ring and screw on the cup lid, there will be a slight gap between the cup and the lid. Because both belong to hard glue, even with great force, it is impossible to tightly fit the cup and lid together. To solve this problem, a water cup silicone pad made of silicone material was chosen. Silicone is a non-toxic, environmentally friendly, high and low temperature resistant material, and when made into silicone rings, it has strong plasticity, so it can play a sealing role and prevent water from overflowing. Generally speaking, the service life of this silicone ring is much longer than that of the cup. If you buy a stainless steel cup, it can accompany you for many years. But there is no absolute solution. Sometimes we accidentally expose the silicone ring to some greasy or acidic substances, which can cause significant damage to the silicone ring of the water cup. Because the silicone raw material used to make water cup silicone rings was not considered to come into contact with oil stains and acidic or alkaline liquids at the beginning of refining, some auxiliary materials were added less. In this case, it is best not to use water bottles to hold liquids that can damage the silicone ring. And in daily use, attention should also be paid to cleanliness. What are the cleaning methods? A common and simple way is to clean with toothpaste. Many silicone rings on water bottles can be removed. We can squeeze a little toothpaste on the ring, dip it in a little water, and then gently brush it with a small brush. Toothpaste has a good cleaning effect on tea stains. After brushing a few times, the rubber ring will show its original color.

Silicone gaskets are used in different industries, so let's talk about the functions of silicone sheets that you don't know! 1. Household daily necessities gasket Household gaskets can be commonly classified as daily necessities gaskets, such as common meal mats and table mats. The main reason for using silicone material is to prevent damage to the desktop, strong adsorption performance can prevent the bowl from slipping, and also provide insulation. Meal mat products are mainly made of environmentally friendly silicone material, usually with appearance as the theme, so color and pattern are more important!   2. Sensing silicone sheet This type of product is mainly used for electronic semiconductors, such as conductive silicone film, heat transfer silicone sheet, etc., because silicone products have certain electrostatic and conductive properties when catalysts are added. Hardware sheets, conductive black particles, and coatings are embedded in them to achieve sensing effects! This type of product is currently a must-have on every electronic device!   3. Food grade silicone sheet As daily necessities, medical devices that come into long-term contact with the human body must be used in this type of product, such as pot lid seals, connecting shock absorbers, etc. These products must meet environmental protection testing and certification.   4. Mechanical sealing sheet Widely used and powerful, mechanical gaskets and buffer gaskets can be said to be the most common types of products in different industries. These miscellaneous accessories are also one of the main products of many silicone product manufacturers. Different materials can be selected for different usage environments and performance. In addition to silicone material, natural rubber, nitrile rubber, chloroprene rubber, fluororubber, and so on are widely used!   So no matter what industry it is, the function of silicone rubber gaskets is involved in use, as for functionality, it depends on the environment and effect of use! Regardless of the industry, gaskets have been widely used, such as in shock absorption electronic products for output pipelines. Different materials can be selected for the different functions of gaskets, and the performance of different materials can make the overall product performance and lifespan more outstanding!

It is well known that silicone products are a green and environmentally friendly product that is popular in European and American countries. However, some silicone products require logos or patterns on the outer surface to leave a certain impression on consumers and deepen their understanding of the product brand. Screen printing is the final process carried out after the formation of silicone products. Screen printing mainly uses screen printing, which is different from oil printing and color printing. The main tools are screen printing and oil brush. Screen printing is a pattern made of iron or wood frame, and this pattern is to be screen printed onto the silicone product. When screen printing products, align the screen with the desired printing surface of the product, apply ink on the screen, and the ink will leak from the gaps of the screen pattern onto the silicone product to form the corresponding pattern. Then put it in the oven to dry, and the temperature should not be too high. Depending on the product, the baking time and temperature generally vary. Compared to pattern printing, screen printing can produce slightly more complex patterns and can also be used for multi-color printing. Compared to silk screen printing, mold printing is much simpler. Mold printing does not require a second process to complete, and can be directly formed with the product in one go. Mold printing can only make some relatively simple patterns, such as logos, which can be made through molds and directly formed. Screen printing and die printing also have different processing costs. Relatively speaking, screen printing costs are much higher. From a cost perspective, the choice between the two can be made according to the complexity of the image.

Silicone sleeves, as a widely used accessory for electronic digital product protection, prosthetic wear, and daily life protection, are loved by users for their unique elasticity and durability. However, many consumers do experience loosening and deformation of the protective sleeve during use, leading to improper use of the product and causing deformation and hardening due to stretching. Do you know the reasons for this?   To prevent insufficient stretching, it is necessary to first recognize the elastic properties of silicone sleeves. Silicone sleeves, usually made of rubber, are a soft and elastic material. This material can be made into various hardness and elasticity products through different ratios to meet different usage needs. The elasticity of silicone sleeves mainly comes from the flexibility of their silicon molecular chains and the stability of their cross-linked structure.   When subjected to external forces, silicone molecular chains can undergo a certain degree of stretching and deformation, thereby absorbing and dispersing impact forces, playing a buffering and protective role. When the external force is removed, the silicone molecular chain can quickly return to its original state, and this reversible deformation ability is the manifestation of the elasticity of the silicone sleeve. The elasticity of silicone sleeves not only allows them to tightly adhere to protected items, reducing damage caused by accidental drops or collisions, but also maintains good shape stability and durability during long-term use. In addition, silicone material itself has certain self-lubricating and tear resistance, which further enhances the adaptability and service life of silicone sleeves in complex environments.   When subjected to external forces, silicone molecular chains can undergo a certain degree of stretching and deformation, thereby absorbing and dispersing impact forces, playing a buffering and protective role. When the external force is removed, the silicone molecular chain can quickly return to its original state, and this reversible deformation ability is the manifestation of the elasticity of the silicone sleeve. The elasticity of silicone sleeves not only allows them to tightly adhere to protected items, reducing damage caused by accidental drops or collisions, but also maintains good shape stability and durability during long-term use. In addition, silicone material itself has certain self-lubricating and tear resistance, which further enhances the adaptability and service life of silicone sleeves in complex environments.   Analysis of the reasons for the loosening of the protective cover: Although silicone covers are widely praised for their excellent elasticity, the problem of the protective cover becoming loose still occurs from time to time during long-term use.   This phenomenon is mainly caused by the following factors: 1. Long term use and friction wear: Silicone sleeves will experience frequent friction and contact with external environments (such as air, dust, moisture, etc.) and protected items during long-term use. This continuous physical action can lead to the gradual breakage of silicone molecular chains and the destruction of cross-linked structures, thereby reducing the elasticity and tightness of the silicone sleeve. In addition, the heat generated by friction will accelerate the aging process of silicone materials, further weakening their performance. 2. Aging of silicone materials: Silicone materials undergo chemical degradation and physical aging under the influence of environmental factors such as high temperature, ultraviolet radiation, and ozone. These changes can lead to the breakage of silicone molecular chains, a decrease in crosslinking density, and a decline in overall material properties. The aged silicone sleeve not only weakens its elasticity, but also becomes brittle and cracked, which affects its protective effect and service life. 3. Design or manufacturing defects: The design and manufacturing quality of silicone sleeves are also key factors affecting their tightness. If the design is unreasonable or the manufacturing process is rough, it may lead to structural defects in the silicone sleeve, such as uneven wall thickness, dimensional deviations, etc. These defects will gradually magnify during use, ultimately leading to the protective cover becoming loose or falling off. 4. Improper use: Improper operation by the user while using the silicone cover may also cause it to become loose. For example, frequent disassembly, excessive stretching, or twisting of silicone sleeves may cause damage, reducing their elasticity and tightness. In addition, failure to clean and maintain the silicone sleeve in a timely manner may also accelerate its aging process. To solve the problem of loose silicone sleeves, we can take the following measures: 1. Regularly clean the inner and outer surfaces of the silicone sleeve with warm water and a small amount of neutral detergent to remove accumulated dust and dirt. At the same time, specialized silicone maintenance agents can be applied to the surface of the phone case to help restore the elasticity and luster of the silicone. When using silicone sleeves, frequent disassembly, excessive stretching, or twisting should be avoided. In addition, it is necessary to avoid exposing the silicone sleeve to harsh environments such as high temperatures and ultraviolet radiation to extend its service life. If the silicone sleeve is severely aged or damaged and cannot be restored to its tightness and elasticity through the above methods, the most direct solution is to replace it with a new silicone sleeve. When choosing a new silicone sleeve, attention should be paid to selecting products with reliable quality and reasonable design. For certain special silicone sleeves (such as prosthetic silicone sleeves), auxiliary accessories can be considered to increase their tightness and stability. For example, adding a film or gasket inside the silicone sleeve to increase the contact area and friction with the protected item. 5. Improve materials and manufacturing processes. The material of silicone sleeves is crucial. If high-quality materials are not available, manufacturers of silicone sleeves can improve the quality and performance of their products by improving design and manufacturing processes. For example, measures such as optimizing the silicone formula, increasing cross-linking density, and strengthening quality control can effectively extend the service life of silicone sleeves and maintain their tightness.

How to prevent deformation of silicone sealing rings? Silicone sealing rings are widely used in food, medical, industrial equipment and other fields due to their excellent high and low temperature resistance, aging resistance and environmental protection characteristics. However, during use, the sealing ring often experiences deformation problems such as twisting and crushing due to material defects, unreasonable design, or improper operation, leading to sealing failure, equipment leakage, and even shutdown risks. According to statistics, about 60% of early failures of silicone seals are caused by deformation damage. Deformation not only shortens product lifespan, but may also pose safety hazards.   Optimize product structure design Reasonably design the cross-sectional shape of the sealing ring, for example, for some high-pressure environments, a combination sealing structure can be used, combining the silicone rubber sealing ring with other sealing components to disperse pressure and reduce the deformation of the sealing ring. In hydraulic systems, a combination of O-ring and retaining ring can be used. The retaining ring can provide support for the O-ring and prevent it from being squeezed into the gap and deformed under high pressure.   Determine the appropriate sealing ring size based on different working conditions and sealing requirements. For example, for motion seals, it is necessary to ensure that the sealing ring has sufficient elasticity to compensate for the gap changes between moving parts, while also avoiding excessive compression deformation caused by oversized dimensions.   Increase product strength design By adding an appropriate amount of reinforcing agent to silicone rubber, the strength and rigidity of the sealing ring can be improved. Common reinforcing agents include white carbon black, calcium carbonate, etc. White carbon black is a commonly used reinforcing agent for silicone rubber, which can form a good bond with silicone rubber molecules and improve the mechanical properties such as tensile strength and tear strength of silicone rubber. Generally, during the mixing process of silicone rubber, white carbon black is added in a certain proportion (such as 10-30 parts white carbon black/100 parts silicone rubber), and after thorough mixing, the reinforcing agent is uniformly dispersed in the silicone rubber matrix.   In terms of production and manufacturing Optimize processing technology Strictly control the vulcanization process parameters, including vulcanization temperature, time, pressure, etc. The vulcanization process is a key step in the formation of silicone rubber seals, and appropriate vulcanization conditions can form stable cross-linked structures between the molecular chains of silicone rubber, thereby improving the performance of the seals. For example, for general silicone rubber materials, the vulcanization temperature is usually between 150-200 ℃, the vulcanization time depends on factors such as product thickness, and is generally between 5-20 minutes. The vulcanization pressure is generally between 5-15MPa. If the vulcanization is insufficient, the strength and elasticity of the sealing ring will be insufficient, and it is easy to deform; Excessive vulcanization can cause the sealing ring to become hard and brittle, and also reduce its service life. To ensure the accuracy and quality of the mold, it is necessary to ensure that the dimensional accuracy and surface roughness of the mold cavity meet the requirements during the mold design and manufacturing process. High precision molds can ensure that the silicone rubber sealing ring can accurately fill the cavity during the molding process, reducing the size deviation and internal stress concentration of the sealing ring caused by mold problems, thereby reducing the possibility of deformation.   In terms of usage and maintenance Proper use and installation When installing the sealing ring, ensure that it is correctly installed in the predetermined position to avoid twisting, excessive stretching, and other situations. For example, when installing an O-ring, specialized installation tools such as mounting rods or rings should be used to evenly push the O-ring into the sealing groove. Excessive force or sharp tools should not be used to directly insert it to avoid damaging the sealing ring. Reasonably select the working pressure and temperature range of the sealing ring to operate within the allowable range of the design. If the work pressure or temperature exceeds the bearing range of the sealing ring, the sealing ring is prone to deformation, aging and other problems. If working in a high-temperature environment, silicone rubber materials with better high-temperature resistance should be selected, and the cross-sectional area of the sealing ring should be appropriately increased to improve its pressure resistance.   Regular maintenance and inspection Regularly inspect the sealing ring to see if there is any deformation, wear, aging, or other phenomena. For some long-term equipment, a regular maintenance plan can be developed, such as checking the condition of the sealing ring once a month or every quarter. If slight deformation is found in the sealing ring, the development of deformation can be slowed down by adjusting the working parameters of the equipment (such as reducing pressure, temperature, etc.), while closely observing the changes in the sealing ring. Timely clean the impurities and oil stains on the surface of the sealing ring. Impurities may cause scratches or increase the friction between the sealing ring and the sealing surface, leading to deformation of the sealing ring. Use appropriate cleaning agents (such as alcohol) and cleaning tools (such as a soft bristled brush) to clean the sealing ring, but be careful to avoid corrosion of the sealing ring material by the cleaning agent.   In terms of environmental control temperature control Try to avoid exposing equipment and sealing rings to extreme temperature environments. If the equipment needs to work in a high-temperature environment, insulation measures can be considered, such as adding a heat shield outside the equipment to reduce heat transfer to the sealing ring. For low-temperature environments, appropriate insulation measures can be taken, such as using heating belts to insulate the sealing ring during equipment shutdown, to prevent the sealing ring from becoming brittle or deformed due to low temperature. Humidity control High humidity environments may cause silicone rubber seals to absorb water and expand, especially in situations where sealing requirements are high. The sealing ring after absorbing water and expanding may cause sealing failure. Dehumidification equipment can be used to reduce environmental humidity, or desiccants can be installed inside the equipment to absorb moisture and keep the environment around the sealing ring dry. Avoid chemical corrosion environment Understand the chemical properties of the medium that silicone rubber seals come into contact with, and avoid long-term contact between the seals and highly corrosive chemicals. If it must be used in an environment with corrosive media, silicone rubber materials with corresponding chemical corrosion resistance should be selected. For example, for some acidic or alkaline media, acid alkali resistant silicone rubber seals designed with special formulas can be used. At the same time, it is necessary to regularly check the corrosion of the sealing ring and the contact area with the medium, and replace damaged sealing rings in a timely manner.

Improving safety: In fields such as electronics and electrical, automotive, and construction, flame-retardant silicone rubber can prevent the spread of fires, reduce fire risks, and protect personnel and property safety. Compliance with regulatory standards: Meeting flame retardant standards such as UL94 and FMVSS 302 is crucial for product certification and market entry, as well as a necessary condition for compliance in fields such as construction and aviation. Expanding application areas: Flame retardant silicone rubber can be used in high temperature, high-risk environments, and special industries with high fire safety requirements, such as aerospace, national defense, etc., expanding the product's range of use. Enhancing market competitiveness: meeting market demand, improving product safety performance, enhancing market competitiveness, and helping enterprises establish a good image.   Flame retardant treatment of silicone rubber products is an important measure to improve their safety and reliability, especially in key fields such as electronics and electrical, automotive, construction, aerospace, and medical. Flame retardant silicone rubber can not only effectively reduce fire risks, ensure personnel and property safety, but also help products meet various industry standards and regulatory requirements, and enhance market competitiveness. With the continuous advancement of technology, the performance of flame-retardant silicone rubber is also constantly improving, providing more reliable guarantees for fire safety in various industries.

advantage: Excellent high temperature resistance: Fluororubber can be used for a long time at temperatures up to 200 ° C to 250 ° C, and some special grades can even withstand higher temperatures. This makes it suitable for seals and O-rings that need to work in high-temperature environments. Excellent chemical resistance: Fluororubber has strong resistance to various chemicals such as fuels, oils, acids, and solvents. This makes it perform well in sealing applications in the automotive, aerospace, and chemical industries. Good aging resistance: Fluoroelastomer shows excellent anti-aging properties in long-term use, including anti-oxidation, ozone resistance and UV resistance. This ensures its long-term stability in harsh environments. Excellent oil and fuel resistance: Fluororubber maintains good sealing performance with minimal volume change when in contact with fuel, lubricants, and other hydrocarbon substances. This makes it an ideal material for automotive engines and fuel systems. Good physical performance: Fluororubber has high tensile strength, good elasticity, and wear resistance. These characteristics enable it to withstand mechanical stress and wear. Low breathability: Fluororubber has low breathability and can effectively prevent gas leakage. This makes it suitable for applications that require high sealing, such as pneumatic and hydraulic systems. Wide range of industrial applications: Fluororubber is widely used in the automotive, aerospace, chemical, medical, and electronics industries, especially in situations that require high-performance sealing. Disadvantages: high-cost: The production cost of fluororubber is relatively high, which makes its price more expensive than ordinary rubber materials such as natural rubber or nitrile rubber. This may be a limiting factor in some cost sensitive applications. High processing difficulty: The processing of fluororubber requires special equipment and technology because its vulcanization process is relatively complex. This increases the complexity and cost of the production process. Limited low-temperature performance: Fluororubber has poor performance in low-temperature environments and typically becomes brittle below -20 ° C to -30 ° C. This limits its application in extremely cold environments. Weak resistance to certain chemicals: Fluororubber has weaker resistance to certain polar chemicals such as ketones, esters, and certain amines. This may require the selection of other materials in certain specific chemical environments. Elasticity and wear resistance are not as good as some other rubbers: Compared with natural rubber or nitrile rubber, the elasticity and wear resistance of fluororubber may be slightly inferior. This may be a disadvantage in certain applications that require high elasticity and wear resistance. Limited food and medical applications: Some grades of fluororubber may not be suitable for food or medical applications unless specially processed and certified. This may be a limitation in situations where strict hygiene standards need to be met. Summary: Fluororubber is a high-performance material that is particularly suitable for applications that require high temperature, chemical resistance, and oil resistance. However, its high cost and processing difficulty may limit its use in certain situations. When selecting materials, it is necessary to weigh their advantages and disadvantages based on specific application requirements.

In order to improve the cold resistance of rubber materials, researchers have adopted various methods. These methods mainly include rubber copolymerization and chemical modification, rubber blending, addition of plasticizers, rational selection of vulcanization and filling systems, etc.   1. Rubber copolymerization and chemical modification Rubber copolymerization and chemical modification are effective methods to improve the cold resistance of rubber materials. By introducing monomers with large side groups for copolymerization, the regularity of rubber molecular chains can be disrupted, and their Tg and Tb can be reduced. For example, introducing monomers with flexible structures into fluororubber molecules can increase the flexibility of the molecular chain, reduce intermolecular forces, and thus improve the cold resistance of fluororubber. In addition, chemical modification methods such as epoxidation and isomerization can be used to alter the structure of rubber molecular chains and improve their cold resistance.   2.Rubber blending is a common method to adjust cold resistance in rubber formula design. By combining different types of rubber, their respective advantages can be comprehensively utilized to improve the cold resistance of rubber materials. For example, combining styrene butadiene rubber (SBR) with butadiene rubber (BR) can improve the cold resistance of the rubber. This is because SBR and BR have lower Tg and good molecular chain flexibility, and can still maintain a certain degree of elasticity at low temperatures.   3.Adding plasticizers is one of the effective measures to improve the cold resistance of rubber materials. Plasticizers can increase the flexibility of rubber molecular chains, reduce intermolecular forces, and make molecular segments easier to move. At low temperatures, plasticizers can act as lubricants, reducing friction and resistance between rubber molecular chains, thereby improving the cold resistance of rubber. Common plasticizers include petroleum based hydrocarbon solvent plasticizers and non solvent plasticizers.