Special wood-plastic decorative sheet for production buildings and preparation method thereof

Abstract

The invention relates to a special wood-plastic decorative sheet for production buildings and a preparation method thereof, and belongs to the field of wood-plastic material manufacturing. The special wood-plastic decorative sheet for the production buildings comprises the following raw materials according to a weight ratio: 80-100kg of polyvinyl chloride, 35-50kg of wood powder, 35-50kg of light calcium carbonate, 2-6kg of composite stabilizer, 0.5-1.0kg of lubricant, 8-12kg of foam conditioning agent, 1.4-1.6kg of AC (Azodicarbonamide) foaming agent, 0.8-1.0kg of trisalt and 0.7-1.0kg of plasticizer. The preparation method of the special wood-plastic decorative sheet for production buildings comprises the following steps: preparing the raw materials; uniformly mixing the raw materials; cooling the mixed raw materials; adding the raw materials treated in the previous step to extrusion equipment, carrying out thermal forming by using a mold head, carrying out running water cooling molding by using a stock mold, and then carrying out extrusion mold; cutting a board obtained by extrusion molding, and leaving. The special wood-plastic decorative sheet has the effects of water resistance, moisture protection and mold prevention.

Description

technical field [0001] The invention relates to the field of wood-plastic manufacturing, in particular to a special-purpose wood-plastic decorative board for production and a preparation method thereof. Background technique [0002] The production of wood-plastic decorative panels for construction is a new type of composite material that has been booming at home and abroad in recent years. Usually, polyvinyl chloride is used instead of the usual resin adhesive, and more than 30% of waste plant fibers such as wood powder, rice husk, and straw It is mixed into new wood materials, and then processed by extrusion, molding, injection molding and other plastic processing techniques to produce boards or profiles. Natural wood boards have defects such as easy shrinkage and cracking, mutability when exposed to water, and flammability when exposed to fire. Physically harmless. Compounding wood powder and plastic is one of the main contents of follow-up research, but due to the poor ...

AI Technical Summary

Problems solved by technology

Combining wood flour and plastic is one of the main contents of follow-up research, but due to the poor compatibility of wood flour and plastic

At present, wood-plastic panels have gradually entered people's lives. Due to the limitations of their characteristics and shapes, the formulation and production methods of wood-plastic panels are restricted, which in turn affects the popularization and use of wood-plastic panels.