Abrasion-resisting PVC plastic wood plank and preparing method thereof

Abstract

The invention discloses an abrasion-resisting PVC plastic wood plank. The abrasion-resisting PVC plastic wood plank comprises, by weight, 100 parts of PVC SG-6, 20-30 parts of ultra-high molecular weight polyethylene, 8-10 parts of cotton straw powder, 1-2 parts of glass beads, 0.5-1 part of AC foaming agent, 0.3-0.6 part of sodium bicarbonate, 1-3 parts of calcium-zinc stabilizer, 1-3 parts of fully-vulcanized powder polyacrylate rubber, 2-3 parts of coupling agent of zirconium aluminate, 1-2 parts of paraffin, 2-3 parts of MBS, 0.1-0.4 part of stearic acid, 0.2-0.5 part of calcium stearate, 4-5 parts of PVC foaming adjusting agent ZB-530, 1-2 parts of red phosphorus, 1-2 parts of ammonium molybdate and 30-40 parts of modified nano calcium carbonate. Extrusion shaping is conducted through a common extruder. The PVC plank has good abrasion resistance and very high impact resistance and tensile strength, and has the advantages of being resistant to chemical corrosion and low in cost.

Description

technical field [0001] The invention relates to the field of PVC boards, in particular to a wear-resistant PVC plastic wood board and a preparation method thereof. Background technique [0002] Wood-plastic composite materials are called wood-plastic composite materials in some occasions, and are called WoodPlasticComposite in many foreign materials, or WPC for short. Wood-plastic composite materials are made of plastic and wood fiber (or rice husk, wheat straw, corn stalk, peanut shell, etc.) Natural fiber) is a composite material made by adding a small amount of chemical additives and fillers and processed by special compounding equipment. It has both the main characteristics of plastic and wood, and can replace plastic and wood in many occasions, which has great development value for our country, which is seriously scarce in wood resources. [0003] There are a large number of polar C-Cl bonds in the molecular chain structure of PVC resin in PVC wood-plastic composite bo...

AI Technical Summary

Problems solved by technology

[0003] There are a large number of polar C-Cl bonds in the molecular chain structure of PVC resin in PVC wood-plastic composite boards, and there is a large force between molecules. Therefore, compared with other general-purpose resins, PVC is a hard and brittle material with low impact strength. , and has notch sensitivity, it is easy to be brittle when subjected to external impact, and it is difficult to be used as a structural material

These shortcomings greatly limit the development of PVC in the field of high performance. In order to expand its application range, it is necessary to toughen and modify rigid PVC.

Commonly used elastomer tougheners can better improve its impact resistance, but at the same time it will significantly reduce the rigidity of the material itself.