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

Through the analysis of demoulding factors, we can use the following methods to avoid the demoulding problem or solve the demoulding problem.   1, the mold structure is reasonable, as far as possible to improve the rigidity of the mold; Timely mold maintenance work, such as cleaning (electroplating, tetrafluorospraying, sandblasting).   2, the structural design of rubber products should be easy to release, and there is enough slope.   3, choose a reasonable and appropriate viscosity formula. Adjust the vulcanization system, especially rubber products, and increase the amount of accelerator; Add carbon black to strengthen or adjust the original formula.   4. If the curing is not mature, the curing time can be increased and the curing temperature can be increased. For the more complex structure of the product, especially pay attention to the demoulding method, improve the operation level of demoulding workers.   5, reduce the frequency and dosage of release agent, which can effectively avoid the release agent pollution mold cavity surface, resulting in difficult to stick mold.   6, use a certain amount of release agent.

Over time, silicone products may appear yellow phenomenon, which not only affects the beauty of the product, but also makes consumers have doubts about its performance. The causes of yellowing of silica gel products and the effects of yellowing on their properties.   The reason why silicone products turn yellow Ultraviolet radiation: silica gel products exposed to sunlight or strong ultraviolet radiation for a long time will cause photooxidation of organic matter in silica gel, causing the color to turn yellow. Thermal aging: At high temperatures, silica gel molecular chains may break or cross-link, resulting in material color changes. Chemical contamination: Exposure to certain chemicals, such as oils, solvents, oxidants, etc., may cause chemical reactions on the surface or inside of the silica gel, causing color changes. Impurities: Impurities that may remain during the production of silica gel, such as metal ions, organic impurities, etc., may promote the oxidation and discoloration of silica gel under certain conditions. Decomposition of additives: Some additives added to silica gel, such as antioxidants, colorants, etc., may decompose during long-term use, resulting in color changes in silica gel.   The effect of yellowing of silicone products Appearance impact: The most direct impact of the yellowing of silicone products is the change in appearance, which may reduce the market appeal of the product, especially for those products that focus on aesthetics. Performance impact: Under normal circumstances, the yellowing of silicone products does not mean a significant decline in their physical and chemical properties. The main properties of silica gel, such as mechanical strength, elasticity and heat resistance, are usually not affected by color changes. Psychological impact: Consumers may have doubts about the quality and safety of the product because of the yellowing of silicone products, which may affect the market acceptance of the product. How to prevent silicone products from turning yellow Avoid ultraviolet radiation: When storing and using silicone products, try to avoid long-term exposure to sunlight or strong ultraviolet radiation. Control the use of temperature: avoid the use of silicone products at too high a temperature to reduce the impact of thermal aging on silicone. Choose high quality silicone: When purchasing, choose silicone products with reliable quality and reasonable additives to reduce the impact of impurities and additive decomposition on silicone. Appropriate packaging: For silicone products that need to be stored for a long time, appropriate packaging materials and methods can be used to isolate external pollution and ultraviolet radiation.   The yellowing of silicone products is a common phenomenon, and the reasons mainly include ultraviolet radiation, thermal aging, chemical pollution, the influence of impurities and the decomposition of additives. Although the yellowing of silicone products may affect its appearance and the psychological feelings of consumers, it usually does not have a significant impact on its main performance. By avoiding ultraviolet radiation, controlling the use of temperature, choosing high-quality silicone and appropriate packaging and other measures, can effectively reduce the risk of silicone products yellowing.

When it comes to sensing, remote control, and thermal conductivity, it is basically related to electronic products, with the continuous upgrading of electronic equipment in recent years, the functions are integrated in small components, and the important defect of integration is that the increase in temperature will lead to the equipment running slow down, device failure in the middle of the work, size space limitations and many other performance problems. Therefore, temperature control has become one of the crucial challenges in the design, that is, in the case of architecture tightening, operating space is getting smaller and smaller, how to efficiently take away more heat generated by a larger unit of power?   Therefore, from the electronic technology level, thermal conductive silica gel sheet can only barely carry out thermal conversion capability through the auxiliary form, thermal conductivity: silica gel sheet uses high-performance thermal conductive materials and eliminates the air gap, so as to improve the overall thermal conversion capability and make the device work at a lower temperature. Its main function is to reduce the heat of the toilet surface and the thermal resistance of the product between the radiator contact surface. It has been used as a thermal conductive silicone sheet, silicon film, soft cooling pad and so on in the electronics industry.   Thermal conductive adhesive, unlike other Che rubber products, it has a unique advantage in electronic accessories out decrease surface heat, source and thermal resistance, heat source for electronic accessories products provide a certain amount of difference in temperature balance effect, the thermal conductive sheet is mainly used in life and household electrical appliances, air conditioning, electric furnace, computer basic on printed circuit boards and so on all have so a piece of thermal conductivity silica gel, In the power supply industry, such as transformers, capacitors, resistors, inductors and other products, as long as the components belong to the high power rate, then the heat transfer silicone sheet will disperse the heat of these components to the shell; Heat conduction in the LED industry: the silicone sheet also has a wide range of applications, the role of the thermal conductive silicone sheet is to transfer the heat of the aluminum substrate to the bottom of the housing of the LED lamp; At the same time can also be applied to the PC above, the PC motherboard above such as the south bridge, the north bridge, the motherboard chip, the graphics card chip, etc., need heat transfer of thermal silicone sheet; Other industries such as automotive electronics, optoelectronics and so on.

Silicone products with what disinfection, silicone products with its excellent physical properties and chemical stability, has been widely used in daily life. However, silicone products in the process of use, it will inevitably be contaminated by bacteria, viruses and other microorganisms, so it is essential to carry out regular disinfection, silicone products disinfection methods have a variety of, today to take you to understand what silicone products with disinfection.   There are a variety of disinfection methods for silicone products, which can be selected according to different situations and needs. Common disinfection methods include hot water disinfection, alcohol disinfection, ultraviolet disinfection and so on. Hot water disinfection is a simple and effective method that can kill most bacteria by soaking silicone products in boiling water for a few minutes. Alcohol disinfection is more convenient, just wipe the surface of silicone products with alcohol cotton pads. Ultraviolet disinfection is a more efficient method, through ultraviolet irradiation, can quickly kill microorganisms on the surface of silicone products.   When selecting the disinfection method, we need to consider the material, shape and use scenario of silicone products. For silicone products with complex shapes or difficult to clean, ultraviolet disinfection may be more appropriate; For silicone products that need to be used frequently, such as baby pacifiers, hot water disinfection or alcohol disinfection is more convenient. In addition, we also need to pay attention to the choice of disinfectants and avoid using disinfectants that are corrosive to silicone materials, so as not to damage silicone products.   In addition to choosing the appropriate disinfection method, we also need to pay attention to the frequency and steps of disinfection. For frequently used silicone products, it is recommended to disinfect them once a day; For silicone products that are not often used, they should also be disinfected regularly. During the disinfection process, we need to follow the correct steps to ensure that every corner is effectively cleaned and disinfected.   It is worth mentioning that although silicone products have a certain high temperature resistance, it is still necessary to pay attention to the control of water temperature when carrying out hot water disinfection to avoid excessive temperature damage to silicone products. In addition, alcohol disinfection should also pay attention to fire safety, to avoid alcohol volatilization caused by fire.   For some special types of silicone products, such as silicone products for medical purposes, the disinfection requirements are more stringent. These silicone products usually require more professional disinfection methods, such as the use of special disinfectants or more stringent ultraviolet disinfection, to ensure their sterile status. Therefore, when using such silicone products, be sure to follow the relevant disinfection norms and requirements.

What are the characteristics of the extrusion process of silicone products? Silicone products are a very popular and favorite products, and have applications in many aspects. Silicone products are produced by professional manufacturers, in the production process, silicone products have common production companies such as molding and extrusion, and the extrusion process of silicone products is an important part of the production process.   1. Introduction of extrusion process of silicone products Silicone extrusion process is a common production process, mainly through the extrusion of silicone raw materials into a certain shape and specifications of the product. The process mainly includes mixing, extrusion, cooling, cutting, inspection and other links. Silicone products produced by extrusion process have excellent properties, such as high temperature resistance, low temperature resistance, corrosion resistance, insulation, etc., so they are widely used in various fields.   2. Characteristics of extrusion process of silicone products Processing flexibility The extrusion process of silicone products has the characteristics of high processing flexibility. During the production process, products of different specifications and shapes can be produced by adjusting the parameters of the extruder and the design of the mold. In addition, the extrusion process can also be combined with other processes such as injection, calendering, etc., to meet diverse production needs. High output, low energy consumption The extrusion process of silica gel products is a production process with high yield and low energy consumption. Compared with traditional processing methods, extrusion process has higher production efficiency and lower energy consumption per unit product, which is conducive to reducing production costs and improving market competitiveness. Excellent product performance Silicone products produced by extrusion process have excellent properties. Because the silica gel itself has the characteristics of high temperature resistance, weather resistance, chemical corrosion resistance, etc., the silica gel products produced by the extrusion process also have the corresponding excellent properties, and can be applied to a variety of complex environments and uses. Environmental sustainability The extrusion process of silicone products is an environmentally friendly and sustainable production process. The silicone raw material itself is non-toxic and tasteless, and the waste generated in the production process can be recycled and reused, reducing the negative impact on the environment. In addition, silicone products have a long service life, which can reduce resource consumption and waste.

How to make silicone rubber hose, in the products we use, silicone products are very useful and commonly used product types, silicone products in many areas of life can give people help, in addition, in the industrial manufacturing industry and other industries silicone products also have an important role. For example, silicone rubber hose in electronics, petroleum, chemical, machinery, electrical appliances, medical need to use silicone rubber hose, but how to make silicone rubber hose?   Production process of silicone rubber hose: ① Rubber mixing: silica gel mixed evenly, add master color, vulcanizing agent (platinum vulcanizing agent, BOP vulcanizing agent, double twenty-four vulcanizing agent). ② The mold is installed in the silicone extrusion equipment, silicone extrusion machine, feeding vulcanization molding, hollow silicone tube, Japanese silicone rubber tube, medical silicone tube and so on. ③ Secondary vulcanization, for products that are not completely vulcanized, using a two-stage vulcanization process, or oven baking! ④ Cut off the silicone tube according to different needs. ⑤ The silicone tube is processed again, such as the food-grade silicone tube in the fresh-keeping box and lunch box is glued into the silicone sealing ring (silicone rubber sealing ring). KL-301 silicone tube glue, glue the two ends of the silicone tube together by heating in the nozzle machine. Medical silicone tube due to strict requirements, mostly using platinum vulcanization agent, liquid silicone extrusion; Under the action of 300 medical silicone glue, it can be glued together with stainless steel metal and PVC/PP plastic pipe.   Silicone hose features: 1. High transparent high temperature resistant silicone tube has excellent heat resistance and can be used almost forever at 150 degrees without performance change; It can be used continuously for several hours at 200 degrees and for a period of time at 350 degrees. 2, high temperature silicone tube non-toxic, environmental protection, high transparency, widely used in household appliances, lighting, medical, beauty salon equipment. 3, high temperature silicone tube through FDA, ROHS, SGS, LFGB and other environmental food grade certification.   Silicone hose use: It can be widely used in aviation, electronics, petroleum, chemical industry, machinery, electrical appliances, medical, oven, food and other industrial sectors of good electrical insulation sealing, liquid conveying materials. Precision representative, oil pipeline, household appliance seal, drinking water pipeline seal, medicine and so on. Food silicone tube is a linear polymer elastomer containing silico-oxygen bond, so it has high thermal stability. It has excellent resistance to ozone aging, oxygen aging, light aging and weather aging, and has excellent electrical insulation, mildew resistance and high air permeability. Silicone rubber is more resistant to cold and heat than plastic, and its characteristics remain unchanged between minus 70 degrees Celsius and above 250 degrees Celsius. Silicone rubber applications are very wide, you can make a lot of model products and industrial supporting products, such as a variety of medical grade silicone tubes, milk bottle straws, silicone strips, pacifiers, silicone tableware, O-rings, gaskets, leather bowls, oil seals, valves, shock absorbers and diaphragms, medicine bottle stoppers. Because silicone rubber has non-toxic, non-adhesive ability with other materials, can withstand multiple cooking and disinfection characteristics, widely used in medical and food industry, such as medical equipment, drinking water equipment, sports equipment, electronics, electrical appliances, lighting, audio, toys, security monitoring, automobiles, industrial machinery and equipment. In addition, silicone rubber can also be used as a coating and sealing of various electronic tubes or electrical components, with moisture-proof, dust-proof, shock-proof and other effects. In the past 30 years, the annual growth rate of silicone rubber products in the world has remained at 8% to 15%, far exceeding the national economic growth rate of general countries. The application of silicone rubber in our country has been very wide, the number and variety continue to grow, and the application field continues to expand, China has become a very potential market for silicone rubber products.  

Why choose silicone products? In the increasingly severe environmental problems of the present, the search for environmental protection and sustainable development of materials has become a global common topic. Silicone products, as a new environmental protection material, with its excellent performance and friendly attitude to the environment, is becoming a strong support to promote sustainable development.   1. Environmentally friendly materials for silicone products Silicone is a substance derived from natural silicon ore, after processing, you can make a variety of silicone products. This material produces almost no pollution during the production process and can be recycled, in line with the concept of environmental protection and sustainable development.   2. Advantages of silicone products High temperature resistance: silicone products can withstand high temperatures of up to 230 ° C, suitable for a variety of cooking and baking environments. Low temperature resistance: at very low temperatures, silica gel can still maintain good elasticity and flexibility. Electrical insulation: Silica gel has good electrical insulation properties and is widely used in the manufacture of electronic components.   3. Advantages of silicone products Environmental protection and non-toxic: silicone material does not contain harmful substances, friendly to the human body and the environment. Durability: Silicone products have a long service life, are not easy to damage, and reduce the waste of resources. Degradability: Some silicone products can be degraded under specific conditions to reduce environmental pollution.   4. Sustainable development of silicone products The production and use of silicone products is in line with the principle of sustainable development and helps to reduce resource consumption and environmental pollution.

Silicone products are stain resistant, silicone products play an important role in our daily life, its wide range of applications include kitchenware, baby products, electronic products accessories and so on. However, for consumers, whether silicone products are stain resistant is an important consideration. So, are silicone products stain resistant?   First of all, we need to understand the basic characteristics of silicone products. Silica gel is a kind of highly active adsorption material, which has the characteristics of non-toxic, tasteless, chemical stability, high temperature resistance and so on. These characteristics make silicone products less susceptible to chemical erosion in daily use, thereby increasing their ability to resist stains to a certain extent. ​​​However, the stain resistance of silicone products is not absolute. In the actual use process, silicone products may come into contact with various stains, such as food residue, grease, pigments, etc. These stains may leave traces on the surface of the silicone, especially if it is not cleaned for a long time. Therefore, for the stain resistance of silicone products, we need to have a rational understanding. ​​​In order to improve the stain resistance of silicone products, manufacturers usually use some special processes and materials. For example, the surface of some silicone products will be covered with a protective film to increase its anti-fouling ability. In addition, when using silicone products, consumers also need to pay attention to keeping them clean. Regular cleaning of silicone products to avoid stains attached to the surface for a long time can effectively extend its service life. ​​​In summary, silicone products have stain resistance to a certain extent, but are not completely immune to stains. When using silicone products, consumers should pay attention to keeping them clean, and choose the appropriate cleaning method according to actual needs. At the same time, when purchasing silicone products, you can also pay attention to the stain resistance of the product and choose products with better stain resistance.   Regardless of the stain resistance of silicone products, it is very important to maintain the cleanliness and hygiene of the product. Only the correct use and maintenance of silicone products can ensure that they maintain good performance and appearance during use.

The frequency of use of silicone products in life is very high, many things in our daily life may be made of silicone, sometimes when we usually use silicone products, we will find that the surface or inside of silicone products will produce bubbles, for the reasons of silicone products have bubbles, why silicone products will have bubbles and how to deal with the problem of silicone products.   1. How to solve the bubbles produced in the production process of silicone products ​In the case of silicone has not been cured with a vacuum machine to bubble processing, can be a good solution to the problem, if there is no vacuum machine can also use defoamer, defoamer defoamer is not very thorough, if these two things are not available, you can adjust the curing time of silicone as long as possible, and then put there, silicone products will slowly discharge bubbles.   2. Causes and treatment of bubbles in thermal silicone sheet ​(1) The vulcanization temperature is too low or the vulcanization temperature is too high is one of the main reasons for the foaming of thermal conductive silica gel sheet. Vulcanization temperature is an important parameter of silicone molding, usually silicone products are set at 160~200 degrees Celsius, but sometimes because the operation time outside the mold is too long or other reasons so that the mold has not opened the vulcanization machine for a long time, resulting in the temperature of the silicone molding mold is low and the vulcanization temperature of the silicone, at this time it will cause the product bubble after the molding of the thermal conductive silicone sheet. For this, we only need to increase the molding temperature, or open the empty mold into the machine to heat up for a period of time in operation to solve the problem. If the vulcanization temperature is too high, the molding temperature is too high, which will also cause thermal conductive silica gel sheet bubbles. Why is that? When the molding temperature is too high, the surface of the silicone material has begun to form in the process of clamping pressure, at this time the air has been trapped inside and it is difficult to discharge, so it will cause thermal conductive silicone sheet forming bubbles. For this reason, just reduce the molding temperature appropriately. ​(2) The reason for the bubbles of silicone products is the lack of exhaust gas, silicone raw materials placed in the molding mold, at the moment of closing the mold will bring a lot of air, and the air is impossible to be integrated with silicone raw materials, if the air is not discharged, it will cause bubbles on the surface of silicone button molding. ​(3) The structure of the mold is unreasonable, and the design of the silicone molding mold is not reasonable, which will also cause bubbles in the silicone molding, such as the arrangement of the product in the mold, the partition way, the mold parting way, the design of the mold size, etc., will cause poor bubbles, but the cost of opening a set of molds is high, and it is not easy to modify. If the silicone molding bubble is caused by the structure of the mold, then it is usually solved from the above mentioned points. (4) The vulcanization time is too short, like the vulcanization temperature, the vulcanization time is also one of the important parameters of the molding of the thermal silicone sheet, and the length of the vulcanization time determines whether the thermal silicone sheet can be completely vulcanized. If the vulcanization time is too short, it will not only cause the thermal conductive silicone sheet to be soft after forming, but also cause bubbles on the surface of the thermal conductive silicone sheet. The occurrence of such defects can properly extend the vulcanization time of silica gel. (5) The production process is also very important: Antioxidant RD is easy to produce bubbles in the mixing operation of the open mill, which is mainly the melting point of antioxidant RD is high and the operating temperature of the open mill is low. Special attention should be paid to the dispersion of zinc oxide when mixing rubber, and its dispersion uniformity will also cause the thermal conductive silicone sheet to bubble, so the rubber mixing process is also a very important link. (6) The moisture content of raw materials used in the formula and whether the mixing operation and products are sufficiently dried after water cooling are mainly caused by the volatilization of water when sulfur is added.   3. Reasons and treatment methods for bubbles after curing of potting silica gel ​First, the bubbles brought in during the mixing or filling process are not eliminated. During the mixing process, due to the large viscosity of the glue or the wrong mixing method, it is easy to bring air into the glue, and if the viscosity of the glue is large, the bubbles are more difficult to eliminate. If the viscosity of the glue is small and the glue cures slowly, the bubbles will slowly rise to the surface and automatically eliminate. Second, the bubbles produced during the curing process. There are several reasons for bubbles in the curing process: the curing speed is too fast, the heat dissipation temperature is high, the shrinkage rate of glue curing is large, and the amount of solvent and plasticizer added in the glue is too easy to produce bubbles in the curing process. Another is that the formula of silica gel contains a small amount of volatile impurities, which are vaporized to form bubbles when heated and cured. In view of the causes of silica gel bubbles, there are several methods to avoid or remove bubbles for reference. For the first reason, vacuum or centrifugation can be used to solve the problem. You can also take the method of standing for a period of time (30 minutes -2 hours) and wait for the bubble to float up by itself. If there is no vacuum machine, stir in the clockwise direction for 2 to 3 minutes, and place the glue for 5 to 20 minutes after stirring, but this method is only for those glue with thinner viscosity, if the glue is very thick, the bubbles remaining in it are not easy to rise and discharge. For the second reason, the bubbles caused by volatile impurities in the silicone formula can be baked at low temperature, so that these impurities evaporate first, and then increase the temperature curing, so that there are no bubbles. To solve those problems in the curing process, it is necessary to adjust the overall formula of the glue. ​​​ 4. The reason why there are small bubbles on the surface of silicone products In fact, we can find that after the rubber surface is dry, break the bulging rubber, and you can see that it is empty, indicating that this is a small bubble. If you start in just a few minutes, it should be too high water, but if your product bubbles are sporadic, it means that the water is not too high, and if the rubber water is too high, the application period of your product should be shortened! I still doubt whether the bubbles in the rubber material are because your A component is too thick and air is stored in it when you put it into the rubber material bucket or your material is mixed unevenly. There are not many opportunities for users to really have this problem, which is occasional, and more than 90% of products have no complaints in this regard. We have also suspected that there is no problem with the user's glue machine caused by the foaming phenomenon. But the user insists that his glue machine is no problem, we can only find the reason on the glue. The A component in the two-component silica gel is vacuumed, and it is also noted when packaging. But the problem of moisture was not taken into account. Do single-component products know that dehydration is very important, do two-component products A component is indeed not seriously dehydrated. I always feel that it is two-component anyway, and A little water in component A will not affect the storage period. Through the above analysis, it seems that component A should also be considered seriously dehydration.

Adhesive foot pad in a variety of products base as a foil buffer, it has been widely used in major industries, belongs to a kind of micro auxiliary accessories, low cost and simple function, but some products have it and it is too redundant, some items do not have it, so with its role and function, many items need to use it to set off the use, The difference is that it has a different process and a different structure.   The function of the rubber foot pad is based on the adhesion of the bottom as a whole plane, at present, our common rubber gaskets are made of a plane with non-slip sungrain texture, and its main process is made of flat gaskets as a whole calendering process or molded sheet molding. This kind of silicone gasket has a wide range of applications, which are used in many seats, wardrobes and electronic and electrical products, so both sides belong to the plane structure under the premise of the plane effect, and can be applied to a variety of flat products for backgluing.   The other is the structural rubber pad, this kind of foot pad must use the oil pressure molding process for production and processing, to make the effect of convex and curved structures to fit, this way is mainly for the processing of special-shaped rubber parts, can be used for customized rubber parts processing in various fields. Flat and shaped adhesive parts need to be fitted, the adhesive way is divided into single-sided adhesive and double-sided adhesive, followed by the adhesive paper is also very important, the current commonly used silicone adhesive paper is divided into TPE adhesive paper and double-sided adhesive paper. Back adhesive paper is also divided into genuine and imitation products, high strength and conventional adhesive, different quality for different products, the current silicone pad is commonly used 3M back adhesive paper, so in different foot pad life above which to consider its adhesive paper and use strength.