A study of interface adhesion between polyamide 6 (PA6) and nitrile rubber (NBR)

Abstract

The mechanism of interface bonding of a selected nitrile rubber (NBR) compound vulcanized on polyamide 6 (PA6) was studied using Transmission Electron Microscopy (TEM). Two types of interfaces, primary and secondary interface were identified. The interface bonding was formed through mechanical clamping and enhanced by hydrogen bonding formation between PA6 and silane coupling agent in NBR compound.

The formation of fibrous structure of polyamide 6 induced by the three‐step forming process and its prominent reinforcement in nitrile rubber

“…A serious of research works have been conducted on the reinforcement of NNR around the world . A variety of fillers have been used to reinforce the NBR matrix, including carbon black, fibers, nanomaterials, plastics, and so on.…”

“…EVA acted as plasticizer in thermoplastic elastomers, and it resulted in reduced crystallinity. Wang et al . studied the interface between PA6 and NBR matrix by Transmission Electron Microscope (TEM) technique.…”

“…A serious of research works have been conducted on the reinforcement of NNR around the world. [6][7][8][9] A variety of fillers have been used to reinforce the NBR matrix, including carbon black, fibers, nanomaterials, plastics, and so on. Polyamide 6 (PA6) is an important engineering plastic, which has excellent high-temperature resistance, wear resistance, and solvent resistance.…”

“…EVA acted as plasticizer in thermoplastic elastomers, and it resulted in reduced crystallinity. Wang et al 9 studied the interface between PA6 and NBR matrix by Transmission Electron Microscope (TEM) technique. Two kinds of interfacial structures were formed, which were the primary interface layer caused by molecule diffusion and the secondary interface layer caused by hydrogen bonds, respectively.…”