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

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!

Why is carbon black vulcanized after adding silicone rubber not ripe? According to the manufacturer's technical analysis, it is likely that the purity of carbon black is not high enough and the sulfur content is high, so it is recommended to use acetylene carbon black as silicone rubber packing.   As we all know, acetylene black is a kind of conductive carbon black, with high purity, good thermal conductivity, ash content, low sulfur content, surface water absorption characteristics.   Its low sulfur content is an important reason for its suitability for conductive silicone rubber products, which is related to the vulcanization process of silicone rubber. High purity acetylene black is due to its low sulfur content, which has overcome the problems of poor vulcanization and premature vulcanization in the vulcanization process of silicone rubber.   When we choose carbon black, we can tell the carbon black manufacturers what products we need to make and the physical requirements of carbon black, so that the carbon black manufacturers can give us better Suggestions, so that the quality of our products can be better guaranteed.  

Does food grade silicone smell? No, food grade silica gel is airless and tasteless, even if it is heated and baked at 250 degrees, it is also odorless. It can still maintain its own superior performance after long-term use at 200 degrees. Generally, the food-grade silica gel supplied by regular manufacturers has FDA food certification, and customers can request this certificate from the manufacturer. Food-grade silicone is a liquid silicone material mainly used for the production of food product silicone molds, such as cake molds, ice sculpture molds, ice cream molds, chocolate molds, candy molds, etc. After the silicone mold is made, the food ingredients are directly injected into the mold to form food, so this also means that the requirements for food-grade silicone are very strict, and all indicators must be implemented in accordance with FDA requirements, including odorless. Very important item. In the mold making operation process, it can have two molding methods to choose from, one is heating and curing molding, the other is curing molding at room temperature, and there are two operating methods, one is potting and the other is brushing. I will not elaborate on the method of the model, how to operate it, and what should be paid attention to. Customers in need can contact us. So, at this point, we can know that food-grade silica gel is a very environmentally friendly silica gel material, which is airless, odorless, temperature-resistant and durable. From the perspective of environmental protection of silica gel, the application of silica gel in the future market will become more and more extensive.  

What are the differences between EPDM rubber and silicone rubber? First of all, EPDM rubber is a terpolymer of ethylene, propylene and non-conjugated diene. Diene has a special structure, and only one of the two bonds can be copolymerized, and the unsaturated double bond is mainly used as a cross-chain. The other unsaturated one will not become the main polymer chain, only the side chain. The main polymer chain of EPDM is fully saturated. This feature makes EPDM resistant to heat, light, oxygen, and especially ozone. EPDM is essentially non-polar, has resistance to polar solutions and chemicals, has low water absorption, and has good insulation properties. Silicone rubber is classified into two types: hot vulcanized silicone rubber and room temperature vulcanized silicone rubber according to its vulcanization characteristics. According to the performance and use, it can be divided into general type, ultra low temperature resistant type, ultra high temperature resistant type, high strength type, oil resistant type, medical type and so on. According to the different monomers used, it can be divided into methyl vinyl silicone rubber, methyl phenyl vinyl silicone rubber, fluorosilicone, nitrile silicone rubber, etc. However, silicone rubber has excellent heat resistance, cold resistance, dielectric properties, ozone resistance and atmospheric aging resistance. The outstanding performance of silicone rubber is that it can be used at a wide temperature range from -60°C (or lower temperature) to Long-term use at +250°C (or higher temperature). However, silicone rubber has poor mechanical properties such as tensile strength and tear strength. Its physical and mechanical properties are not as good as most synthetic rubbers at room temperature. In addition to nitrile silicone and fluorosilicone rubber, general silicone rubber is resistant to oil and solvents. The performance is not good, so silicone rubber is not suitable for occasions under ordinary conditions, but it is very suitable for many specific purposes.

According to related reports, BASF recently announced that it will build a commercial production facility for black powder in Schwarzheide, Germany, whose raw materials will be derived from battery recycling and production waste. This investment further strengthens BASF's Schwarzheide site as a center for the production and recycling of cathode active materials (CAM).   With many electric vehicle manufacturers and battery producers in Central Europe, Schwarzheide is an ideal location for building a battery recycling-related industry. The investment will provide around 30 new production jobs and is scheduled to start in early 2024.   The first step in the battery recycling process is mechanical processing (of used batteries) to obtain a substance called "black powder". These black powders contain a large amount of important metals used in the production of cathode active materials: lithium, nickel, cobalt and manganese, and they will be used in BASF's planned new commercial hydro-smelting plant around 2025 to realize the recycling of used batteries.

What is the cause of insufficient resilience of silicone rubber products? We all know that silicone rubber products are widely used in various fields mainly due to its good toughness and softness. Silicone rubber products are soft, tear-resistant, and do not deform, and are widely used in life. However, once silicone rubber products lose these unique excellent properties, they become meaningless. Some common silicone sealing products will also experience product deformation and insufficient toughness after long-term use, thus losing their original performance. The lack of toughness of the product is mainly due to the various additives added in the raw materials, which will cause the product to have different properties. Among them, "white carbon black" is the main reason for the lack of toughness of the product, and white gray black is the main composition of the raw material of silicone rubber. One, the silica used in the production of materials with different hardness is also different, and the appropriate proportion of addition can also make the surface activity in the raw material. In addition to raw material additives, the molding vulcanization of the product also has a certain impact, and the elasticity of the product is directly related to the hardness of the raw material. When molding vulcanization, adding too much vulcanizing agent will cause the fluidity to be too active, and the product produced is either too soft or too high in tension, and adding too little vulcanizing agent will cause the product to be vulcanized and unable to form. Secondly, the control of temperature and time during the molding process is also very important. Too short vulcanization time will cause the product to be too soft and long-term use will gradually lose its resilience. Too high molding temperature will cause the product to be too brittle, and the resilience will be too weak and easy to break.