HEMP FIBER FOR PLASTIC REINFORCEMENT AND PREPARATION METHOD THEREOF

摘要

A hemp fiber for plastic reinforcement and preparation method thereof are disclosed. The hemp fiber is composed of (by weight): chopped hemp fiber 100 parts, hemp fiber treating agent 0.1-100 parts, functional polyolefin 1-10 parts, coupling agent 0.1-10 parts and antioxidant 0.1-0.5 parts. The method includes the following steps: cutting the chopped hemp fiber off, immersing in sodium hydroxide solution and stirring, washing and spin-drying, immersing in the hemp fiber treating agent aqueous solution, baking and obtaining chopped hemp fiber with treated surface, and then adding the chopped hemp fiber, coupling agent, functional polyolefin and oxidant sequentially into the preheated kneading machine and stirring to obtain the hemp fiber for plastic reinforcement. The chopped hemp fiber prepared herein is superior in terms of color, rigidity, heat resistance, compatibility with plastics, and can be used to prepare high performance composite material of chopped hemp fiber and plastics and can act as reinforcement in plastic matrix.