We often use straps in our daily lives. Among them are cam buckle straps with hooks . Compared with ordinary straps, this strap is stronger and more stable, and easier to use.
Most of the materials used in cam buckle straps with hooks are polyester. Polyester, a general term for polymers derived from polyhydric alcohols and polybasic acids. Mainly refers to polyethylene terephthalate (PET), and customarily also includes linear thermoplastic resins such as polybutylene terephthalate (PBT) and polyacrylate. It is a class of engineering plastics with excellent properties and a wide range of uses. It can also be made into polyester fiber and polyester film. Polyester includes polyester resin and polyester elastomer. Polyester resins include polyethylene terephthalate (PET), polybutylene terephthalate (PBT), and polyacrylate (PAR). Polyester elastomer (TPEE) is generally polymerized by dimethyl terephthalate, 1,4-butanediol, and polybutanol. The chain segment includes a hard segment and a soft segment and is a thermoplastic elastomer.
The general straps are also made of polyester, but most of them are used with the over center buckle .