Grafting modification compatible resin specially used for nylon, and modified nylon resin

Abstract

The invention relates to a grafting modification compatible resin specially used for nylon, and modified nylon resin, wherein the grafting modification compatible resin is prepared from polypropyleneand maleic anhydride, wherein the polypropylene is irradiated by an electron accelerator, energy level of which is 3.0 MeV, and irradiation dose is 100-300 KGy. After the irradiation, the polypropylene is mixed with the maleic anhydride. In the invention, through the grafting modification under irradiation by the electron accelerator, the polypropylene, which is originally free of polarity, is processed with addition of the maleic anhydride to prepare a novel polypropylene basic material, wherein the active groups are introduced through the grafting modification to form the modified resin. When the resin is mixed with nylon or other engineering plastic, functional groups on molecular chain terminals form chemical bonds and are combined with each other, so that the nylon material is significantly improved in compatibility and affinity just by adding a less amount of modifying resin, thus improving performance of the material and reducing cost.

Description

technical field [0001] The invention belongs to the field of resin processing, and in particular relates to a special graft-modified compatible resin for nylon and a preparation method thereof. Background technique [0002] Nylon is one of the most widely used and most diverse engineering plastics. The material has good mechanical properties, heat resistance, wear resistance, chemical solvent resistance, self-lubrication and certain flame retardancy. It has excellent performance and can be integrated into complex structural parts, and is widely used in automobiles, electronic appliances, machinery, rail transit, sports equipment and other fields. However, the shortcomings of strong water absorption and poor low-temperature impact performance limit the application range of nylon materials. [0003] In recent years, with the needs of industrial development, people have paid more and more attention to the modification of nylon. CN101195706 discloses a method for preparing a p...

AI Technical Summary

Problems solved by technology

However, the shortcomings of strong water absorption and poor low-temperature impact performance limit the application range of nylon materials.