A wood-plastic composite material with phase-change energy storage and heat preservation and its manufacturing method

Abstract

The invention discloses a wood-plastic composite with effects of phase-change energy storage and thermal insulation. The material is prepared from resin coated wood flour supported with a phase-change energy storage material, matrix plastic and additives, wherein the resin coated wood flour supported with the phase-change energy storage material comprises composite wood flour, a polyethylene glycol composite phase-change energy storage material supported on the composite wood flour and polyethylene glycol-isocyanate copolymer resin covering the composite wood flour and the polyethylene glycol composite phase-change energy storage material. The wood-plastic composite with the effects of phase-change energy storage has good energy storage and thermal insulation performance, avoids leakage of the phase-change material and is good in mechanical strength. On the other hand, the invention provides a preparation method of the wood-plastic composite with the effects of phase-change energy storage and thermal insulation. The wood-plastic composite is prepared from the wood flour supported with the phase-change energy storage material and PVC (polyvinyl chloride) plastic powder and the additive through mixing, kneading, extruding, open-milling, pressing, cutting and trimming.

Description

technical field [0001] The invention relates to the technical field of composite materials, in particular to a wood-plastic composite material with phase-change energy storage and heat preservation and a manufacturing method thereof. Background technique [0002] The operating environment of airplanes, ships, and automobiles is sometimes hot and cold, and the temperature varies greatly. Checkpoints, field stations, lighthouses, and wind turbines have harsh environments and large temperature differences between day and night. In order to ensure the safety of personnel and equipment, it is necessary to adjust and control the temperature through the cooling or heating of the air conditioner. [0003] my country's existing construction area is 40 billion m 2 , most of which are high energy consumption buildings, and nearly 2 billion m of new buildings are built every year 2 , more than 95% of which are still high energy consumption buildings. With the rapid development of ur...

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Problems solved by technology

[0013] Although the above research work has achieved some gratifying results, the existing plastic and wood materials have unsatisfactory thermal insulation effects and cannot create a space environment that maintains a comfortable temperature range for the human body.

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