The daily mobile phone protective cover, waterproof gloves, waterproof rings, toothbrush holder, various wheels and physical doll are made of soft rubber products, but product design and development personnel may choose different raw materials according to their own factory and customer needs, more is rubber, silicone and TPE materials.
There are many kinds of rubber, according to the source of natural rubber (NR) and synthetic rubber (SR) two categories; The scope of its use can be divided into general rubber, special rubber two categories; According to the main chain structure, it can be divided into carbon chain rubber, such as natural rubber (NR), styrene butadiene rubber (SBR), butadiene rubber (BR), nitrile butadiene rubber (NBR), neoprene rubber (CR), butyl rubber (IIR), isoamyl rubber (IR), ethylene propylene rubber (EPR), acrylic rubber (ACM), chlorosulfonated polyethylene rubber (CSM), chlorinated polymer Vinyl rubber (CM/CPE), fluorine rubber (FKM), ethylene-vinyl acetate rubber (EVM), etc., hybrid chain rubber (such as polyurethane rubber (PU), polysulfide rubber (T), chloroether or chloroalcohol rubber (CO, ECO), elemental organic rubber (such as silicone rubber SIL). All kinds of rubber have different properties and characteristics due to different manufacturing methods, molecular chain structure and composition, etc., so they are used in different rubber products, among which NR is the largest, followed by SBR, IIR, BR, NBR, EPR, CR, etc.
Silicone material is actually a kind of synthetic rubber under rubber, is a thermosetting elastomer, has the advantages of safety and non-toxic, insoluble in water and any solvent, non-toxic and tasteless, chemical stability, in addition to strong alkali, hydrofluoric acid does not react with any substance, high adsorption performance, good thermal stability, chemical stability, widely used in adult products, food products. Silicone products processing technology is more complex, need to go through the rubber, molding, vulcanization and a series of functions to produce products. Silicone products belong to thermosetting rubber, vulcanized reheating will not melt, can not be directly recycled again processing.
Silicone products usually cost more than the TPE. Adult products have privacy and exclusive performance, it is based on this point adult products a large number of silicone manufacturing.
TPE is a thermoplastic elastomer with both plastic and rubber characteristics. It shows the high elasticity of rubber at normal temperature and can be plasticized at high temperature (without vulcanization). It can be widely used in the automobile industry (automobile interior decoration, automobile foot mat, automobile exterior decoration, automobile sealing strip, etc.), daily necessities, household goods, toy industry (oil spray toys, soft toys, pet toys, baby toys, vent toys), sex toys, tool kit glue, sports equipment industry, watch strap and so on. TPE material is not only convenient to make, the price is also relatively cheap, but also can be recycled, can reduce a lot of costs, is a product conducive to environmental protection.
In addition, TPE material can also be based on different product needs, by adding or changing different additives and formulas to achieve the product needs of hardness, a balance can be found on the mask, which also greatly improve the comfort of the product. It is this that leads to the TPE material in the thermoplastic elastomer market can occupy a place and even have the tendency to become the dominant;

Reasonable selection of materials needs to consider the performance of comprehensive materials from the use of the product environment. The main properties of soft rubber products are: hardness, elasticity, corrosion resistance, weather resistance, friction coefficient, whether it is easy to crack, coloring performance, high (low) temperature resistance, cost, processing technology, etc. If used with daily products, baby products also need to pay attention to whether the material is harmful to talent, whether there is bad smell, feel comfortable and other factors.

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