昆山泰洛克密封科技有限公司橡胶密封制品O型圈工厂直销密封件 O型圈规格密封件价格

Material property

NBR	FKM	EPM/EPDM	HNBR	VMQ
CR	FVMQ	AU/EU	CO/ECO/GECO	SBR
IIR	NR	AEM	ACM	FFKM

AU/EU

Polyurethane is a poly amino ethyl formate is referred to as. Is a kind of macromolecular elastic urethane containing repeating unit chain in the main chain structure of the body. The young's modulus between plastics and rubber, so it is neither nor rubber plastic. According to the machining processes can be divided into mixing polyurethane (MPU), casting polyurethane (CPU) and thermoplastic polyurethane (TPU), according to the types of polyols can be divided into polyester (AU) and polyether (EU). The mechanical strength of PVC is three to four times, wear resistance is NR five to ten times, oil resistance is NBR one to five times, in addition, but also has many physical outstanding properties, such as: radiation resistance, ozone resistance, good dielectric property, strong elasticity, elongation rate more than 500% (1000% maximum). From the comparison of physical properties, low hardness material with AU and, in addition, the adhesion of AU oil resistance, heat resistance and metal are better, and the hydrolysis resistance, cold resistance and antibacterial property of EU is better. Because the ether bond hydrolysis resistant ability than most carboxylic ester bond strength (about 5-10 times), so EU is not easy to hydrolysis, nitrile rubber and than low CAN content (NBR) and hydrogenated nitrile rubber is more resistant to oil and fuel oil. Emergence of lactone type polyurethane elastomer, AU improved hydrolysis resistance, and oil resistance and high temperature resistance has been further improved.

(one) temperature range

AU：-40 -100℃

EU：-80 -90℃

(two) hardness range

Shore A60 degrees to 95 degrees

(three) colour

Black, transparent, green, orange, the color can also be specified by the client.

(four) application

Polyurethane material can be used for the manufacture of automobile industry in practice will tire, damping products, cushioning products, hydraulic pneumatic seals; textile, steel, paper, food industry, roller, conveyor belt; oil seal oil industry and seals; seals, mechanical industry cushion, belt; the medical field manual heart, artificial heart valves, artificial blood vessel.

技术资料

TECHNICAL CENTER

Material property

技术资料

Technology