Anti-bacterial and flame-retardant PVC composite board and processing method thereof

Abstract

The invention discloses an anti-bacterial and flame-retardant PVC composite board and a processing method thereof, wherein the anti-bacterial and flame-retardant PVC composite board includes the following raw materials in parts by weight: 100 parts of PVC resin, 5-10 parts of an acrylic acid-maleic anhydride copolymer, 40-60 parts of wood meal, 40-60 parts of modified calcium carbonate, 5-10 partsof shell powder, 3-5 parts of boron nitride, 1-3 parts of aramid fibers, 2-4 parts of a foaming agent, 1-2 parts of a flame retardant, 1-2 parts of an antibacterial agent, 1-3 parts of a plasticizer,0.5-1.5 parts of a stabilizer, 0.5-1.5 parts of an antioxidant, 2-4 parts of a modifier and 3-5 parts of a processing aid. The modifier consists of octaaminophenyl cage-like silsesquioxane and vegetable oil fatty acid alkanolamide borate with a mass ratio of (1-3):1. The prepared PVC composite board has the advantages of high strength, strong impact resistance, no fission, good flame retardancy,strong antibacterial property, low water absorption rate, wear resistance, weather resistance, heat resistance, difficult deformation, aging resistance, good processing performance, simple process, low cost, and good social and economic benefits.

Description

technical field [0001] The invention belongs to the technical field of wood-plastic composite materials, and in particular relates to an antibacterial and flame-retardant PVC composite board and a processing method thereof. Background technique [0002] PVC wood-plastic composite material is a new green and environmentally friendly material that is based on wood cellulose and plant cellulose, plus thermoplastic polymer materials and processing aids, etc., mixed evenly and then heated by mold equipment. It has excellent physical and mechanical properties, uniform physical properties, low water absorption, stable size, corrosion resistance, insect resistance and convenient processing. It can be molded and processed with general plastic processing equipment or after slight modification and can be reused Recycle. It is mainly used in furniture and decoration materials, building materials, outdoor materials and corrosion-resistant equipment. It is a good material for replacing w...

AI Technical Summary

Problems solved by technology

In the current method of modifying nano-calcium carbonate, the main surface treatment agent is usually fatty acid or its salt. Although the dispersion and processing fluidity of the system have been improved, it is difficult to effectively combine PVC resin with nano-calcium carbonate filler. , leading to poor interface adhesion between the matrix and the filler, resulting in low mechanical strength of the PVC sheet

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