Formula of PVC wood-plastic section material produced by utilizing agriculture and forestry three residues (logging residue, bucking residue and processing residue) and preparation technology thereof

Abstract

The invention relates to a PVC wood-plastic section material and a preparation method thereof. Agriculture and forestry three residues comprise logging residue, bucking residue, processing residue, crop straws and the like and are researched, by utilizing the different physical and chemical properties, the agriculture and forestry three residues are proportioned and then are subjected to fusion mixing together with PVC plastic, so that the wood-plastic section material with excellent performances is prepared. Compared with the prior art, the agriculture and forestry three residues are fully utilized, processing and proportioning are performed based on the characteristics of the agriculture and forestry three residues, the filling density is large, the specific surface area is large, and the agriculture and forestry three residues are easy for fusion mixing with PVC, and are beneficial for resource saving and environment protection, and the prepared wood-plastic section material is good in physical properties; and the prepared wood-plastic section material is easy to process without being limited by processing length, is high in production efficiency and excellent in performances, and is 100% recyclable after being used for years.

Description

technical field [0001] The invention relates to a wood-plastic composite material, in particular to a PVC wood-plastic profile made from agricultural and forestry residues and a preparation method thereof. Background technique [0002] The three agricultural and forestry residues are mainly divided into three types of forest residues and agricultural waste. The three forest residues mainly refer to: harvesting residues (branches, twigs, treetops, bark, leaves, roots, rattan, shrubs, etc.); (Referring to veneer, slats, cut ends of wood and bamboo, saw foam, broken veneer, wood core, shavings, wood blocks, leftovers, etc.). At present, logging residues and timber residues account for about 30% of forest biomass. According to the forest harvesting limit approved by the State Council during the Eleventh Five-Year 3 / a, my country will produce about 11.1 billion tons of logging and timber residues every year, and processing residues are also expected to be as high as 32.1 milli...

AI Technical Summary

Problems solved by technology

[0007] However, the above-mentioned wood-based panels are mainly made of wood-making waste, and other forest wastes are not comprehensively utilized, and a large amount of adhesives are used, resulting in waste of wood and high formaldehyde release of wood-based panels, which do not meet people's increasing environmental protection requirements. Therefore, There is an urgent need for a new type of building material that is energy-saving, low-cost, and easy-to-care

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