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

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.

Silicone rubber products industry uses: a large number of automotive, mechanical, electric power, electronic products and household, such as: shock block, sealing ring, gasket, oil seal, seal, traction machine pressure block, silicone ring, gasket, seal and other products.   Now silicone products have become more and more popular in our life, such as family cups, baby pacifiers, silicone bowls, industrial sealing rings, brackets, medical silicone products breathing masks, silicone pads, silicone catheters, human materials and so on. Silicone rubber products are more and more favored by people, which is inseparable from the characteristics of silicone rubber products.   I. High temperature resistance of silica gel products: acceptable temperature range of -40 to 230 degrees Celsius, microwave oven and oven can be; Two, silica gel products are easy to clean: water flushing is a common cleaning method, if you encounter stubborn oil stains, you can use cotton swabs dipped in alcohol to scrub; Three, silica gel has the characteristics of long life: stable chemical performance, so that it has a long service life compared with other products; Four, silica gel material is comfortable and soft: silica gel material is mostly soft, so the product is comfortable and flexible and does not deformation; Five, silica gel products can achieve color diversification: according to the needs of customers to make different color products, so that it has a high selectivity; Six, silica gel environmental protection non-toxic: good heat resistance, from the raw material into the factory to sales are not toxic and harmless substances.  

Our factory is a professional manufacturer of sealing ring, rubber o-rings, main silicone o-rings, fluorine rubber o-rings, O flat washer, rubber flat washer, silicon flat washer, fluorine plastic flat washer and so on, generally USES the nitrile rubber, natural rubber, neoprene, ethylene propylene rubber, fluorine rubber, silicone rubber has blending rubber manufacturing.   NBR nitrile rubber seal ring features: suitable for use in petroleum hydraulic oil, glycol hydraulic oil, diester lubricating oil, gasoline, water, silicon grease, silicon oil and other media.Is currently the most widely used, the lowest cost of rubber seals.Not suitable for polar solvents such as ketones, ozone, nitrohydrocarbons, MEK and chloroform.The general operating temperature is -40℃~120℃ .   HNBR hydrogenated nitrile rubber sealing ring features: excellent corrosion resistance, tear resistance and compression deformation resistance, ozone resistance, sunshine resistance, good weather resistance, better wear resistance than nitrile rubber.It is suitable for washing machinery, automobile engine system and refrigeration system using new environmental refrigerant R134a.It is not recommended for use in solutions of alcohols, esters or aromatic hydrocarbons.The general service temperature is -40℃~150℃

Transparent silica gel keys as the name implies are transparent silica gel keys, the glue is transparent, generally speaking, the color of transparent silica gel keys is relatively light silica gel keys. This is also the main reason for the high production cost of transparent silicone keys. See the above paragraph you may not understand why the transparent silicone button will be more expensive, the following small make up will talk in detail. Transparent silica gel keys because the glue is transparent, there are some dirt, gas traces, pinholes and bubbles on the surface are clear at a glance, which greatly increases the difficulty of production of silica gel keys, and the cost will also increase. Dirty in some dark color of the silicone button surface, there are a lot of acceptable, in this case, a part of the slight is a good product; The same is true of air traces; For pinholes, it depends on the size of the hole. If it exceeds a certain standard, it is definitely not very acceptable. Bubbles are unacceptable, and this is undesirable.

With the continuous development and innovation of silica gel industry, silica gel products are widely used in various industries, and there are more and more silica gel products on the market, but there are also some inferior or fake silica gel products on the market at present, so how do we judge the quality of silica gel products when buying silica gel products? 1. Wear resistance: Wear resistance is the production and molding of silica gel products, and the surface of silica gel products can suffer loss. The general surface of good silica gel products is rarely rubbed off the surface of the product due to external factors, and does not affect the appearance, text and color of the surface. The surface characters of inferior silica gel products are easy to drop. 2. The elastic: Silica gel products have good elasticity, because high elasticity mainly comes from the movement of silica gel molecular chain segment, so when buying silica gel products, look at the elasticity of silica gel products to judge the quality. 3. Fatigue resistance: Silica gel products by alternating stress (or strain), the structure and performance of the material changes phenomenon is called fatigue. As the fatigue process progresses, the phenomenon that leads to the destruction of silica gel products is called fatigue destruction. So fatigue resistance is also a way to identify the quality of silica gel products. 4. Tearing strength and tensile strength: Silica gel products with high tear strength have outstanding damage resistance, long life, and are not easy to be disturbed by the external environment. Silica gel products with poor tear strength are generally prone to cracks in the tearing process, so as to rapidly expand cracking and lead to damage when stressed. 5. Hardness and fixed elongation stress: Hardness and fixed extension stress reflect the rubber material rigidity (stiffness) important indicators, both are the force required by silica gel products to produce a certain deformation, is also a way to identify the quality of silica gel products.

Conductive silicone is a kind of silicone products, because of the conductive properties of silicone products, so it is often used in some electronic silicone products switch on, it must be subjected to a certain compression force can conduct, conductive silicone can conduct is not because the silicone has conductivity, Generally conductive silicone is through the external material embedded in conductive silica gel and has the role of conductivity, commonly used is metal shrapnel, conductive black particle, conductive material coating.   Conductive silicone has a very wide application. It is now mainly used in some electronic equipment, household equipment and office equipment, such as conductive silica gel buttons, wire connection tubes, photocopier rollers, cable plugs, connector gaskets, all kinds of electrical switches and so on.   Conductive silicone it with ordinary silica gel key-press, silicone products on the production process is generally the same, all is the need to prepare material, molding, printing, spraying, such as technology, and operation method, craft skills, is the same as the silicone button products well above is just a process with more conductive silicone, is to join a conductive material, And these conductive materials in molding or edge removal may appear some situation, because conductive silicone in the production process above or more complex than ordinary silicone products!