PVC (polyvinyl chloride) mixture for PVC foam wood-plastic production

Abstract

The invention relates to a PVC (polyvinyl chloride) mixture for PVC foam wood-plastic production. The PVC mixture is prepared from raw materials in parts by weight as follows: 50-60 parts of PVC, 15-20 parts of light calcium carbonate, 10-18 parts of wood flour, 1-2 parts of a stabilizer, 1-1.5 parts of tribasic lead sulfate, 3.5-4.5 parts of a foaming regulator, 0.1-0.5 parts of an AC foaming agent, 0.2-0.8 parts of an NC foaming agent, 0.2-0.6 parts of an internal lubricating agent, 0.3-0.5 parts of PE wax, 1-1.5 parts of an ACR-175, 2-3 parts of ACR-401 and 2-3 parts of CPE-135A. A production method comprises steps as follows: the raw materials are subjected to hot mixing at 120-140 DEG C and cold mixing at 30-50 DEG C, and a final finished product is obtained. A plate made of the PVC mixture has the advantages of being high in hardness and strength, water-proof, damp-proof, antibacterial, insect-removing and the like.

Description

technical field [0001] The invention relates to the technical field of wood-plastic materials, in particular to a PVC compound used for polyvinyl chloride foamed wood-plastic production. Background technique [0002] Wood-plastic material is a new type of composite material made by mixing plant fiber powder such as wood with plastic. It has the same compression and bending resistance as hard wood, and its hardness, waterproof, moisture-proof and corrosion resistance are far away. Higher than ordinary hard wood, because it saves limited wood resources and has good performance, it has been greatly developed at home and abroad in recent years. [0003] In the processing of wood-plastic composite materials, surface treatment agents, additives, foaming agents, etc. need to be added to improve the performance of the product, but there are still many problems in the production and processing process, such as unstable production quality, low yield, High scrap rate, low surface fini...

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Problems solved by technology

[0003] In the processing of wood-plastic composite materials, surface treatment agents, additives, foaming agents, etc. need to be added to improve the performance of the product, but there are still many problems in the production and processing process, such as unstable production quality, low yield, High scrap rate, low surface finish, low hardness, material elastic modulus, nail holding force, etc. are not up to the requirements, a large part of which is due to unreasonable formula, improper selection of raw materials, and inaccurate weighing of ingredients and mixing process defects also have some influence

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