Basalt fiber reinforced polyamide composite material and preparation method thereof

Abstract

The invention discloses a basalt fiber reinforced polyamide composite material and a preparation method thereof. The preparation method comprises the following steps: firstly, carrying out surface modification treatment on basalt fibers by using a modifier, wherein the modifier is prepared from nitrate, strong base and quaternary ammonium salt; enabling the surface roughness of the fibers to be increased and forming a large amount of active sites and active groups, so as to improve the compatibility of the basalt fibers and a polyamide material; enabling the basalt fibers and the polyamide material to be chemically bonded and mechanically riveted; secondly, compounding the basalt fibers subjected to modification treatment and the polyamide material to obtain the basalt fiber reinforced polyamide composite material with more excellent performance.

Description

technical field [0001] The invention relates to the field of polyamide composite materials, in particular to a basalt fiber reinforced polyamide composite material and a preparation method thereof. Background technique [0002] Basalt fiber is a new type of inorganic environmentally friendly green high-performance fiber material, and it is one of the four high-performance fibers that will be developed in my country in the future. The basalt rock material composed of basalt is melted at high temperature and then prepared by spinning process. Basalt continuous fiber not only has good stability, but also has various excellent properties such as electrical insulation, corrosion resistance, combustion resistance, and high temperature resistance. Moreover, the production process of basalt fiber produces less waste and less environmental pollution. It can be directly transferred to the ecological environment without any harm, so it is a veritable green and environmental protection ...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to overcome the defect of poor performance of basalt fiber reinforced polyamide composite material, and provide a kind of basalt fiber reinforced polyamide composite material and its preparation method; the present invention first utilizes modifying agent to carry out surface modification treatment to basalt fiber, make The surface roughness of the fiber increases and a large number of active sites and active groups are formed, thereby increasing the compatibility between the basalt fiber and the polyamide material, enabling the chemical bonding and mechanical riveting of the basalt fiber and the polyamide material, and then the modified Treated basalt fiber is combined with polyamide material to obtain basalt fiber reinforced polyamide composite material with better performance