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ProductsThe company's equipment has 4500T, 2000T, 1000T and other large vulcanizing machines, injection molding machines, extruders and machining equipment. Its main products are various wind power tower rubber nylon internal parts.
NEWS
Advantages and disadvantages of various rubber properties and dielectric resistance
Date：
2022-09-14
Source：
1, Silicone Rubber (Q)
Silicone rubber is divided into hot vulcanized type and room temperature vulcanized type. Hot vulcanization type is divided into methyl silicone rubber (MQ), methyl vinyl silicone rubber (VMQ, dosage and product brand most), methyl vinyl phenyl silicone rubber PVMQ(low temperature resistance, radiation resistance), other silicone rubber, fluorosilicone rubber and so on. MQ is a colorless transparent high viscosity plastic straight chain polymer compound, the main chain is composed of silicon and oxygen atoms, and the side group connected with silicon is methyl, the molecular weight is between 500,000 ~ 800,000. VMQ is a colorless transparent high viscosity plastic straight chain polymer compound, the main chain is composed of silicon and oxygen atoms, and the side groups connected with silicon are methyl and vinyl groups. The molecular weight of VMQ is between 500,000 ~ 800,000. PVMQ is obtained by introducing diphenyl silico chains or methyl phenyl silico chains into the molecular chain of vinyl silicone rubber.
Temperature range: -60℃(special to -115℃) ~ 204℃(special to 260℃)
2, neoprene rubber (CR)
Neoprene rubber is made from the polymerization of neoprene monomer, which is a polar rubber between saturated and unsaturated. The vulcanized rubber has relatively good ozone resistance (better than NR, SBR, NBR, worse than EPDM, IIR), weather resistance, chemical corrosion resistance and aging resistance. But also has good mechanical properties, flame retardant and good wear resistance, low temperature flexibility, good resistance to distortion performance, resistance to dichlorodifluoromethane and ammonia refrigerants, such as dilute acid resistant, resistant silicon ester lubricant, but not resistant to phosphate series hydraulic oil, at low temperature crystallization, hardening, storage stability, low in aniline point of large amount of mineral oil in the expansion.
3, polyurethane rubber
It is formed by polymerization of polyester (or polyether) with diisocyanate compounds.
Temperature range: -40℃ ~ 100℃, short time up to 120℃
4, acrylic rubber (ACM)
Acrylate rubber is an elastomer obtained by copolymerization of acrylate as the main monomer. Its main chain is a saturated carbon chain and its side group is a polar ester group. Due to the special structure gives it many excellent properties, such as heat resistance, aging resistance, oil resistance, ozone resistance, ultraviolet resistance, etc., mechanical properties and processing performance is better than fluorine rubber and silicone rubber, its heat resistance, aging resistance and oil resistance is better than nitrile rubber. ACM is widely used in various high temperature and oil resistant environments, and has become a kind of sealing material developed and popularized in the automobile industry in recent years. It is mainly used as a variety of heat and oil resistant sealing rings, gaskets and oil seals for automobiles and locomotives.
Temperature range: -30℃~150℃, short time up to 175℃
Advantages:
· Good air tightness
· Good ozone resistance
· Excellent oil resistance
· Good anti-ultraviolet discoloration
· Good resistance to heat aging
· High temperature oil seal, crankshaft, valve stem, cylinder gasket and hydraulic oil pipeline for automobile
Disadvantages:
· Poor processing performance, adhesive material is easy to stick to roller
· Poor cold resistance
· Resistant to water, steam, acid and alkali, salt solutions and organic polar solvents
· Poor elasticity, wear resistance and electrical performance at room temperature
Applicable medium:
· Mineral oil (engine oil, gear oil, ATF oil)
Not applicable medium:
· Aromatic hydrocarbons, chlorinated hydrocarbons
· Hot water and steam
· Acids, bases and amines
· Ethylene glycol based brake oil
keywords：
Silicone,vulcanization
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At present, the company has passed ISO9001 quality management system certification, EXC2 certification, EN1090-3 EG certification for aluminum structure products, and the cable laying series products for GE have obtained CE certification for the European market.
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Contact: Manager Sun
Mobile phone：86-13722810322
Fax：86-0318-7766576
Email：Kathyangiulo@gmail.com
Add：Wencheng Industrial Park, Jingxian County, Hebei Province
