Description: R72612S is solution-copolymer using organic lithium as initiator bà anionic polymerizatiormethod in varsol consisting of styrene and butadiene. R72612S is a non polluted type styrenebutadiene.With features of high tensile strength, narrow molecular weight distribution, high cis content, good abrasionresistance, low rolling resistance, can solve the problems of weak wet skid resistance of BR and high rollingresistance ofSSBR, It is ideal material for tire tread.
Specification:
Item |
R72612S |
Ash content,%(m/m)≤ |
0.2 |
Volatile matter content,%(m/m) ≤ |
0.75 |
Mooney viscosity of raw rubber,50ML(1+4)100ºC |
43-53 |
Oil content,wt % |
23.0-29.3 |
Styrene content,%(m/m) |
21.5-25.5 |
|
59.0-63.0 |
300%Modulus(35min),Mpa |
According Totest |
(35min),Mpa |
Elongation rate(35min),% |
Application: It is mainly used to make semi-steel radial tire of winter tires and high performance tires(grade V, 240 km/h), which can grip the road with ice/snow. The corresponding MWD ensure goodprocessing performance. It also widely used In conveyor belt, rubber shoes, shockproof products, sealproducts and other industrial rubber products.
Package and storage: The package include a HPPE film bag inside and a paper laminated HPPE or LPPEand polypropylene compound woven bags outside, with a net weight of 25kg or other. The product shouldbe stored in well-ventilated, clean and dry warehouses.