Preparation technology of wood-plastic composite material

Abstract

The invention discloses a preparation technology of a wood-plastic composite material. The technology comprises the steps of (1) carrying out high-speed / low-speed mixing on mulberry branch fiber and regenerated plastic particles and an interface compatibilizer at different ratios (35-65%); (2) adding the mixture to a double-order (twin-screw / single-screw) mixing unit for extruding and pelleting to obtain wood-plastic composite material master batches; and (3) after drying, carrying out injection molding according to a corresponding ASTM standard. By adopting the preparation technology, large-scale utilization of the mulberry branch fiber can be achieved.

Description

technical field [0001] The invention relates to a composite material preparation process, in particular to a wood-plastic composite material preparation process. Background technique [0002] Over the past few decades, natural organic fillers consisting of wood-based materials (such as wood flour, cellulose fibers, etc.) and agricultural raw materials (such as jute, rice hulls, flax, hemp, etc.) . Natural Vegetable Fibers (NVF) is the most abundant resource in the world. The total amount of cellulose in NVF that grows and exists in nature every year can be as high as 100 billion tons, far exceeding the total oil reserves on the earth. . However, natural plant fibers have not been utilized on a large scale, and mulberry fiber is one of them. A large amount of mulberry fiber is discarded, which not only causes waste of resources, but also causes serious environmental pollution. Contents of the invention [0003] Aiming at the deficiencies of the prior art, the invention p...

AI Technical Summary

Problems solved by technology

However, natural plant fibers have not been utilized on a large scale, and mulberry fiber is one of them. A large amount of mulberry fiber is discarded, which not only causes waste of resources, but also causes serious environmental pollution.