Straw modified composite material

Abstract

The invention discloses a straw modified composite material. The straw modified composite material is a multilayer composite structure, and comprises a wear layer, a color film layer, a substrate and a base material from top to bottom; the wear layer is a transparent film with the external surface containing an UV coating; straw fibers are added to the base material; the base material is a straw wood plastic wood plastic polyvinyl chloride and chlorinated polyvinyl chloride crusted and foamed plate; straw fibers are produced from crop straws through a steam blasting technology; the straw fibers are preprocessed through a surface composite treatment technology (ethylene glycol / coupling); and inorganic nanoparticles and SiC nanopowder are added to the base material. The straw modified composite material has the advantages of overcoming of defects of the straw fibers, realization of large-scale utilization of the straws, high strength, good toughness and good wear resistance.

Description

technical field

[0001] The invention relates to a PVC composite material, in particular to a straw composite material. Background technique

[0002] As a by-product of agricultural production, crop straw has a large output and wide distribution. The comprehensive utilization of crop straw at home and abroad has obtained some available ways, one of which is to use straw to prepare straw wood-plastic composite board, but the prepared straw Wood-plastic composite panels have the following deficiencies: First, crop straws have their own raw material defects such as short fibers and prominent inhomogeneity; second, the interface compatibility between natural fibers and plastics is poor and the dispersion in the plastic matrix is ​​poor; third, straw The strength and toughness of wood-plastic composite panels are poor; fourth, the amount of straw added is small, and a large amount of crop straw is discarded, which not only causes waste of resources, but also causes serious environ...