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FAQ

What kind of rubber products are expensive?
The size and size of rubber products determine the amount of glue used, which is a matter of cost;
What is the lowest cost material for the synthesis of rubber?
Polypropylene ethylene propylene rubber, ah, as if a few domestic, oh, raw materials are not expensive, but the technology is difficult, but it is very simple to say, on the two synthetic. Jilin Petrochemical made decades of synthesis, products or not like us.
What kind of rubber is suitable for waterproof aprons?
The vulcanized rubber is a linear or branched structure, because of its low strength, little elasticity, hardening of the cold, softening of the heat, dissolution of the solvent, etc., which makes the products useless. Therefore, the rubber products must be vulcanized, deformed, meshed or of a shape structure to be of practical value.Proper vulcanization of the rubber can maintain the high elasticity of the rubber and the strength of the rubber. At the same time, in order to increase product hardness, strength, wear resistance and tear resistance, while adding inert filler in the process (such as Zinc Oxide, clay, chalk and barite etc.) and reinforcing filler (such as carbon black).
For the application of common synthetic rubber, not too long or too difficult, want to do
Chloroprene rubber (CR) by chloroprene do monomer emulsion polymerization and into the polymer. This rubber molecule containing chlorine atom, so compared with other general rubber: it has excellent oxidation resistance, ozone resistance, non flammable, after the fire can be self extinguishing, the advantages of oil resistance, solvent resistance, acid and alkali aging resistance, good air tightness; the mechanical performance is better than natural rubber, it can be used for general rubber, also can be used for special rubber. The main disadvantage is poor cold resistance, large proportion, relatively high cost, good electrical insulation, processing is easy to stick rolling, easy to scorch and easy sticking. In addition, rubber poor stability, not easy to save. The temperature range of about - 45 DEG C ~ + 100 DEG C. Mainly used in the manufacture of anti ozone aging resistance, high cable sheath and various protective cover, protective cover; oil resistance, chemical corrosion resistance of hose, adhesive tape and chemical lining Flame resistant underground mining rubber products, as well as a variety of molded products, seals, mats, adhesives and so on
What is the temperature of ordinary silicone rubber resistant to low temperature?
Heat resistance of silicone rubber in the air is much better than that of organic rubber, at 150 DEG C, the physical and mechanical properties basically unchanged, semi permanent use, under the temperature of 200 DEG C can be used continuously for more than 10000h; 380 DEG C can be used for some time. Silicone rubber is therefore widely used as rubber parts in high temperature applications.
What about rubber molding, foaming and layering?
2. rubber or mold contaminated by grease or other impurities and layered in contaminated areas3. release agent too much spray, so that part of the invasion of rubber, resulting in delamination, cracking4. mixing uneven or spray cream5. plastic material is too bad
How does the rubber part of the watch become yellow?
Rubber: the word "rubber" comes from the Indian language "cau-uchu", meaning "weeping tree"". Natural rubber is flowing out from the Hevea latex when tapping after solidification and drying process. The finished product is material with elasticity, insulation, waterproof and air.
How do ordinary NBR and EPDM materials differ?
Difference: EPDM density is lower than NBR, the appearance of EPDM is transparent or white, and NBR is yellow or white yellow.