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

1, safety performance silica is the main component of silica, chemical stability, non-toxic. 2, silica gel has a strong adsorption capacity, can produce drying effect on human skin. If silicone gets into the eye, rinse with plenty of water and seek medical attention as soon as possible. 3, blue silica gel contains a small amount of cobalt chloride, toxic, should avoid food contact and inhalation mouth, such as poisoning should immediately seek medical treatment. Silica gel is a kind of highly active adsorption material, belongs to the amorphous substance, its chemical molecular formula is mSiO2·nH2O. Insoluble in water and any solvent, non-toxic tasteless, stable chemical properties, in addition to strong alkali, hydrofluoric acid does not react with any substance. Various types of silica gel have different microporous structures due to their different manufacturing methods. The chemical composition and physical structure of silica gel determine that it has many other similar materials are difficult to replace the characteristics: high adsorption performance, good thermal stability, stable chemical properties, high mechanical strength, etc.

In the processing of silica gel products, the most troublesome process is to remove the edge, especially the products produced by the molding process, remove the edge to make people crazy. So what are the causes of rough edges?   1. The curing temperature is too high or the curing time is too long Silica gel products in the molding process, once the temperature is too high or vulcanization time is too long, it will cause the product molding after numbness or brittle, whether numb or brittle, will have a great impact on the side. 2. The curing temperature is too low and the curing time is too short Silica gel products are not completely vulcanized when the elasticity is strong, so it is not easy to separate the raw edge and the product when removing the edge, so it is generally necessary to use scissors to repair the edge. 3. Mould self-disassembly design is unreasonable, processing quality is not up to standard or mould wear time is too long In the design of the mold, the mold design is not reasonable, manufacturing the mold since the opening is not sharp, resulting in the product is difficult to remove the edge after forming. In addition, silicone products mold wear or sandblasting times too much will also affect its self-disassembly performance. 4. The forming thickness is too large In the molding process as long as the size meets the requirements, try to do thin, ruler, accurate material. 5. Silica gel raw material problem There is a problem with the rubber link, the quality of the rubber material is poor, there is a lack of tearing strength, poor toughness, and easy to fracture when forming.

For silicon veins 6 hanging sticky dust actually is the chief drawback of silicone material, no matter in any environment will appear this kind of circumstance, so a lot of friends love silicone products gradually in a little because it no longer love, for the silicone products manufacturer make silicone products particularly big cases to absorb dust will also take corresponding measures, For example, the use of antistatic glue raw materials, negative ions, but for the majority of consumers is very troublesome, so you can first understand its adsorption force can be properly prevented! Silica gel mainly physical adsorption force, where even without moving around the cilia, also gradually as the reaction of the electrostatic dust sticky on the surface of the product, because the silicone raw materials belong to the anode sex, to do all kinds of chemical auxiliary materials have strong adsorption reaction to other polar substance, in order to enhance the silicone adsorption force, should increase active type structure unit of adsorbent. Therefore, if the calcination of silica gel makes it completely dehydrated, the silica hydroxyl group of silica gel is completely destroyed and reduced or even no adsorption capacity; If a large amount of water is added to silica gel, its adsorption force will also be reduced, because the silicon hydroxyl group forms too many hydrogen bonds with water and thus reduces its active type ratio. Secondly for hardness higher product and without the influence of the adsorption of dust and debris, for low hardness products adopt electrostatic rubber production will not have a sticky dust, the phenomenon for silicone products adsorption problem for silicone rubber products manufacturers can be baked to keep products belong to remove certain electrostatic drying, in spraying oil to prevent feel sticky dust, Feel oil is an oily substance whose main function is to increase the smoothness of silica gel surface appearance and maintain dustproof effect. For consumer friends, you can buy white electric oil to wipe properly, and use dust-free cloth to stick alcohol can also remove the dust on the appearance!  

Silica gel keys are easy to absorb dust under normal circumstances, so in the production process, we will spray a thin layer of feel oil on the surface of silica gel keys, which can prevent dust and make the feel better. We think that the main effect of oil injection is to improve the feel and beauty of the product, so that the product can maintain a smoother, more three-dimensional feeling, and how should we choose which kind of oil injection?   There are three different ways to handle silicone key oil injection: First, spray color oil: Spray color oil is sprayed on the surface of the silicone keys with a layer of visible ink, and the color can be adjusted according to the customer's demand for goods. Two, spray extinction: Extinction ink is a kind of fog surface feel ink, its characteristics are similar to PU ink, but the spray extinction ink will make the silica gel button appearance of fog surface, and can spray the effect of scrub, feel is smoother than! Three, spray PU: PU refers to a kind of ink, it has the characteristics of strong adhesion, wear resistance, good transparency, etc., sprayed PU silicone key feel is also very good, very wear-resistant, is also a common silicone key injection oil. The above three are commonly known as the "oil injection silicone key", and some people say spraying, spray painting.

Gaskets are often used in every field, but different materials are used in different environments. Silica gel material has become a common gasket tool, which is often used in many aspects, such as padding thickness, shock absorption and buffering, beautiful decoration, etc. And for silicone material made of gaskets do not understand you will not be difficult to understand it enough to achieve the effect you want and want the effect, in this is the most key!   More extensive and silicone gasket reference with our application by the different environment can adopt different production processes, currently on the market a lot of silicone material can use solid silica gel of silica gel and forms two kinds of different materials, different difference lies in different hardness, transparency, softness, and we often use the silicone gasket hardness requirements have not been very low, Therefore, solid silica gel has become the first material chosen by consumers. Solid transparent silica gel belongs to hot vulcanized silicone rubber. The unsolidified form is essentially an immobile solid substance. It is mainly used to manufacture all kinds of silicone rubber products, silicone accessories, silicone daily necessities and so on. The degree of flexibility is generally between 30-80 degrees. The advantages of high toughness, high transparency and environmental protection are so that it has been selected by many markets.   In this aspect of material performance must be a lot of friends should understand. Colorless, tasteless, non-toxic environmental protection, high density, good tensile, wide temperature range can be keep softness for a long time, due to the good performance can be placed in the disadvantage of environment using for a long time, so for the silicone gasket used are closely related to the speed of the environment and fixed-line, in the process of silica gel products manufacturers processing appropriate adjust the curing time may change a product's dielectric properties, If the fixed-line speed is too long, the softness of the product will be affected. If the product is too brittle, the appearance will be torn, the toughness will be reduced, and the aging will be accelerated. Therefore, the quality of the silicone gasket and the material of the body can be controlled in the processing process.

General silica gel products will have insulation and conductive performance, so how to distinguish conductive silica gel and antistatic silica gel? The surface resistance value of insulating silica gel products reaches 10 to the power of 12 is the insulation level. (There must be many people think: 10 to the power of 5 is conductive, 5 to 9 is anti static, 9 is insulation.) Recommended product: insulating silicone tube Conductive silicone rubber is usually defined as a volume resistance within 10 times 9 ohmic centimeters. Conductive rubber is divided into anti-static grade conductive rubber 1 antistatic silicone rubber products surface resistance value of 10 between the power of 5-12 is antistatic level. Up to 10 to the ninth power, 10 to the sixth to the eighth power is permanent but the properties of the material deteriorate, beyond 10 to the ninth power is transient antistatic. 2 conductive silicone rubber products surface resistance value of 10 to the power of 5 is conductive level. The volume resistivity is generally 3 ~ 10 ω ·cm, the relative density is 1.15, the hardness is 60 (Shaw A), the tensile strength is 5.7MPa, and the relative elongation is 265%. It can be mixed with methyl vinyl silicone rubber (raw rubber), white carbon black, conductive filler, structure control agent and organic peroxide. When the volume resistance is below 10 ohm cm, the conductive rubber has electromagnetic shielding function.

Aging life ability is the hard damage of silicone ring, all suitable for sealing silica gel products have such a defect, such as our common mechanical doors and Windows, electronic product sealing and automotive waterproof sealing ring will appear certain defects, Whether silicone or rubber and other materials are selected, they will gradually lose their functionality and fail to achieve the actual effect after environmental destruction and the test of time, and can not show the role of the product. There are many main reasons to affect the service life, but in any sealing silica gel ring will be affected by several common phenomena. The force size affects or compresses the permanent, according to the installation mode, plane, concave and convex groove or groove and other different ways of installation, installation of each product is likely to lead to uneven force, force center deviation, one side is heavy and the other side is light, which leads to compression permanent deformation after long-term stress accumulation. When it is unloaded again, the sealed silicone ring is likely to have been deformed, so it is necessary to control the balance and the degree of force uniform synthesis while installing.   The product size is wrong, resulting in gap deformation: Gap problem can be divided into several factors, because the material of the rubber problem, a lot of silicone material appeared due to the formula back stretch is poor, the problem of insufficient tensile force will cause in the process of using the strength is not big gap lead to leakage, silica gel circle machining manufacturer problem: crisp lead to silica gel products such as product do edge thickness of thin easy to appear this kind of problem, When the product is soft, the rubber material has inner bulging and is not ripe, and the gap problem occurs after long-term tensile and compression deformation. Product soft or brittle lead to function failure, most of the time is not the structure of materials and products, but in the process of silicone rubber products factory production lead to product quality standards, such as processing hard softness requirement, did not know when will lead to long processing time appear in the process of the product is too brittle in the installed appear cracking phenomenon, Or if you want to improve the processing efficiency, the product is soft, resulting in deformation phenomenon when the product is stressed. Hard softness effects, and many times according to the different softness of silicone rubber products can completely change the product functional and structural, so the silicone seal in use process due to choose different hard softness after loading, stretching, the emergence of the phenomenon such as extrusion, sealing ring can appear some inevitable problems, such as extrusion aperture, too much stress, hardness is too high, Product deformation without rebound and other factors.        

There are two kinds of process ways to print fonts and patterns on many silica gel products, which are radium carving process and screen printing process, but what is the difference between them? Radium carving and silk screen printing process products, from the appearance of the visual effect is similar, but in fact there are still a lot of differences. Here is a brief introduction to their differences: ① : radium carving products, fonts, patterns have light transmission; Screen printing products are opaque. ② : of radium carving products, the color of fonts and patterns is the color of materials, and the background color is the color of ink; The products of screen printing are exactly the opposite of radium carving products. ③ : From the wear resistance, radium carving is higher than screen printing ④ : The principle of the two processes is not the same. The optical principle of radium carving is the surface treatment, and the screen printing is the physical principle, so that the ink sticks to it. ⑤ : The price is not the same, but the price is judged by the difficulty of the font and pattern.  

There are two coloring methods for silicone rubber products: surface coloring and mixing coloring.Surface coloring refers to spraying colorant on the surface of the product to make it colored.The act for liquid products, colorants are easy to fall off and fade, solid products have a certain effect.Mixing method is the main method of silicon rubber coloring at present, which is divided into liquid phase method and mixing method.Another method of mixing is dry powder dyeing, color paste dyeing, granule dyeing and base glue dyeing.   1. Solution staining method The method is to dissolve silicone rubber and other solvents into a solution of a certain concentration, then add the colorant and devulcanizing agent complex to the solution, stir and mix uniformly, dry and remove the solvent at a certain temperature, and finally add the vulcanizing agent to the rubber mixer . The dyeing method is complicated to operate, uneven distribution of dyes and compounding agents, bright colors, difficult to recycle solvents, and environmental pollution, so it is rarely used at present.   2. Mixing and coloring This method is currently the most commonly used method for coloring silicone rubber products, that is, adding the coloring agent directly or mixing with the carrier and then mixing with the rubber compound, and mixing and coloring uniformly through a rubber mixer.   There are four specific methods: a. Dry powder dyeing In this method, the powder colorant and the small materials are directly added to the silicone rubber for mixing on an open mill. The method is simple to operate and low in cost, but the dust during mixing is large, pollutes the environment, and is not easy to be dispersed and uniform, the color is not good, the particles are too coarse, and it can also cause quality problems such as color dots, streaks, and mutual contamination of chromatograms. use. For convenient use, the powder colorant can be mixed with stearic acid, sulfate, etc. to make a pre-dispersed colorant and sell it on the market. b. Dyeing of color paste In this method, the coloring agent is mixed with a liquid compounding agent (such as a plasticizer) first, and then made into a paste or slurry through three-roll grinding, and then added to the silicone rubber in a certain proportion for mixing. This not only avoids the flying of dust, but also facilitates the dispersion and uniformity of the colorant in the silicone rubber. But the colorant content in the color paste is low, the coloring rate is not high, the conveying volume is large, the loss is large, and the user is inconvenient to use. c. Pellet coloring method There are two main methods for preparing colorant pellets. As with other powdery compounding agent granulation methods, the first method is to infiltrate the powdery colorant surfactant first, then melt it with wax or melt it with resin to extrude into granulation. The second method is to infiltrate the colorant surfactant, and then use mechanical force to refine the colorant particles to make a dispersion with a certain concentration, and then co-precipitate with the emulsion, and then flaked into granules after drying. Among these substances, surfactants are mainly anionic and non-ionic, such as fatty acid salts, sulfonates, etc., and natural rubber latex is usually used. This product is easy to use, high dispersion, no dust, no pollution, bright color, uniform color development, and no color difference. It is a promising coloring method. However, the preparation process of the granular pigment is complicated and the cost is high, which limits its application. d. Masterbatch coloring The method is to first mix the colorant, part of the plasticizer and other silicone rubber compounding agents with the raw rubber through an open mill to make a colorant masterbatch with a concentration of about 50%, and then mix it into the silicone rubber in proportion. Coloring. This method has a good coloring effect for dyes with fine particles and difficult to disperse, with uniform color development and no color difference. Pay attention to the concentration of the colorant in the masterbatch when adding, and deduct the amount of other complexes when adding.

Will silicone rubber products age? Silicone rubber products due to high temperature cracking products aging, at the same time because of solvent resistance to oil expansion lost performance! Any product will be aging, but the length of time is just, silicone rubber products have excellent anti-aging performance, under normal circumstances, there is no problem with the use of a decade or more, for example, more than ten years ago mobile phone and TV remote control, see whether the buttons are aging? There is nothing wrong with the elasticity of the keys except that the characters on the surface are worn. How long is the life of silicone rubber products? Different environment, life is different, at the same time different parameters, different formulations of silica gel product life is also different, according to the performance of various silicone rubber in some environments can be as long as several decades of life, in the industrial manufacturing of long-term work operation, some silica gel accessories in three to five years, The service life of silicone rubber is long under the condition of high concentration oxygen and ozone. Through the above information, I believe you know how to preserve silica gel products, do not use in a high temperature environment for a long time, to prevent the aging of silica gel products.