Environment-friendly single-layer microcellular foam PVC (polyvinyl chloride) wood-plastic composite board and preparation method thereof

Abstract

The invention discloses an environment-friendly single-layer microcellular foamPVC (polyvinyl chloride) wood-plastic composite board and a preparation method thereof. According to an adopted raw material formula,the board comprises the components in percentage by mass as follows: 20%-60% of a PVC reclaimed material, 15%-45% of PVC resin, 5.6%-10% of wood fiber powder, 5%-8.9% of filler, 4%-4.4% of a foaming conditioning agent, 1%-1.5% of a compound stabilizer, 0.7%-0.9% of a foaming agent, 2%-2.5% of a reinforcing agent, 2.2%-2.4% of an impact modifier, 0.3%-0.45% of a lubricating agent, 0.1%-0.15% of a coupling agent and 3%-5% of a functional additive, and the functional additive is an anti-aging agent, a fire retardant or a coloring agent. The composite board has the processability similar to that of wood, can substitute for a wood board and also has thecharacteristics of fireproof property, moistureproof property, smooth and attractive appearance and the like, and the wood does not have the characteristics; according to the preparation method of the composite board, waste PVC can be used for performing cycle production, waste materials can be changed into things of value, waste of wood resources can be reduced, and the pollution caused by plastic products to the environment can also be avoided.

Description

technical field [0001] The invention relates to a composite board, in particular to an environment-friendly single-layer micro-foamed PVC wood-plastic composite board and a preparation method thereof. Background technique [0002] At present, the domestic board market is still dominated by wooden boards. The consumption of wooden boards is huge in the fields of construction, home decoration, logistics, etc., especially in the construction field. According to statistics in 2009, the market size of wood plywood templates is 300 million square meters. The annual output is 77.3 million square meters, the market size of bamboo plywood formwork is 122 million square meters, the annual output is 31.4 million square meters, and nearly 110 million square meters of bamboo or wood are used to produce building formwork every year. The demand for panels in the construction market is increasing at an average annual rate of 9-12%, which shows that the use of wooden panels consumes a huge a...

AI Technical Summary

Problems solved by technology

[0004] At present, the domestic construction industry is mainly based on wood boards, and wood boards are used less frequently, and wood waste is serious. In order to avoid waste of wood, some domestic and foreign companies have begun to use plastic boards instead of wood boards, which are costly and inconvenient to cut. Plastic sheets are prone to deformation during storage, and the use effect is not ideal

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