Anti sulfurization returning agent (119462-56-5)

product

chemical composition

appearance

melting point（℃）

application characteristics

PK900

1,3-Dichlorofurfuryl imide methylbenzene

Grey white powder or granules

75-90

PK900 does not participate in vulcanization crosslinking. When the rubber material is over vulcanized into products and used at high temperatures for a long time, it can mend the broken polysulfide bonds into C-C bonds with good thermal stability, thereby maintaining the mechanical properties of the product. It is mainly used in natural rubber materials and can be used in tire tread, base rubber and other parts.

HTS

white powder

-

This product can generate stable mixed cross-linking bonds in the sulfur and accelerator vulcanization system. Due to the better flexibility of mixed cross-linking bonds compared to ordinary single sulfur bonds and better heat resistance than multi sulfur bonds. So as to maintain the flatness of vulcanization during high-temperature vulcanization or over vulcanization, and improve the physical properties and dynamic flexibility of the vulcanized rubber. The adhesive used for bonding copper plated steel wire can improve the bonding performance and has the characteristics of no discoloration and no pollution.

HT918

Grey white to light yellow powder

-

This product has a structure similar to the accelerator TBzTD and the anti sulfurization and anti reversion agent HTS in its molecule, which has the functions of promoting sulfurization and anti sulfurization and reversion. The cross-linking bonds formed by it have the stability of single sulfur bonds and disulfide bonds, and the flexibility similar to polysulfide cross-linking bonds, which can greatly increase the cross-linking density and make the vulcanized rubber have excellent dynamic and static modulus and physical and mechanical properties, as well as excellent anti reversion properties. Therefore, it can be used for mouth protection glue, base glue and other parts. If used for tread, it also has an additional effect of reducing rolling resistance