As a high molecular polymer, the arrangement of molecular chains is not disorderly, but basically belongs to two types: one is spatial ordering with both short-range and long-range order, and this aggregate structure is called crystalline state; One that has only short-range order and no long-range order is called amorphous. The crystalline state and the…

In order for the adhesive to adhere to the rubber feet, it is also necessary to spread between them and eventually establish a chemical cross-linking in order to obtain a true bond. But so far there is no unified consensus on this aspect. There are a total of five different theories or opinions on the…

Rubber feet will encounter adhesion problems in manufacturing or application: at the manufacturing stage, it is necessary to bond with the reinforcing material. In the application and assembly stages, it has to be bonded to other materials to form a whole. Whether it is bonded to itself (rubber) or other materials before or after vulcanization,…

Solubility parameter is a physical constant energy density that is a measure of the compatibility of liquid materials, including rubber, because the rubber is liquid under processing conditions. The solubility parameters of various commonly used polymer materials (including rubber and billets) are as follows: Rubber isoprene 7.8~8.0, natural rubber 7.95, EPDM 7.95, cis-butyl 8.1, styrene-butadiene…