Preparation method of environment-friendly mildew-proof plastic-wooden composite plate

Abstract

The invention discloses a preparation method of an environment-friendly mildew-proof plastic-wooden composite plate. The method comprises the following steps: weighing the following raw materials in parts by weight: 80 to 90 parts of PVC, 60 to 80 parts of a rice straw powder, 20 to 25 parts of terpene resin, 5 to 8 parts of trichloroethyl phosphate, 3 to 7 parts of Vaseline, 6 to 11 parts of phenol, 15 to 20 parts of sa-hao seed gum, 3 to 5 parts of carbon nano tubes, 4 to 8 parts of an antioxidant 264, 15 to 22 parts of butylated melamine formaldehyde resin, 4 to 8 parts of nanosilicon dioxide, 10 to 20 parts of glass beads, and 4 to 8 parts of dithiocarbamate molybdenum formate; then performing extrusion pelleting, mechanical stirring, melt blending and extrusion molding in an extruder, so that the environment-friendly mildew-proof plastic-wooden composite plate is obtained through a flat opening die. The environment-friendly mildew-proof plastic-wooden composite plate is convenient to produce and manufacture, low in cost, environmentally friendly, anti-mildew and long in service life, cannot be mildewed or rotted during use, and can be widely applied to various occasions, such as decoration, municipal gardens and docks.

Description

technical field [0001] The invention relates to a preparation method of an environment-friendly mold-proof plastic-wood composite board. technical background [0002] With the continuous development of my country's modernization and the continuous improvement of people's living standards, the demand for timber is increasing day by day. The resulting over-harvesting has made vegetation resources increasingly tense and caused serious environmental problems. On the other hand, plastic products are widely used, but the waste recycling system is not perfect, and the "white pollution" caused by many people's lack of environmental awareness has become an urgent problem in environmental protection. In this context, wood-plastic composite materials came into being. Plastic wood, a new material to replace wood, is a new type of composite material synthesized with plant fiber and plastic. It has the advantages of both plant fiber and plastic. It has a wide range of applications and ...

AI Technical Summary

Problems solved by technology

Although the wood-plastic composite material contains plastic, which makes its anti-mold performance better than that of natural wood, the wood-plastic composite material still contains a considerable amount of natural plant fiber components. Mildew will occur to varying degrees. Mildew will cause appearance problems and accelerated aging of plastic-wood materials. Therefore, anti-fungal agents are usually added to plastic-wood composite materials, resulting in the cost of anti-fungal agents. Commonly used anti-mold There are chlorothalonil, which has been included in the banned ranks of the new EU regulations in recent years. It is no longer in line with the worldwide development trend of focusing on environmental protection. The high price of some environmentally friendly antifungal agents cannot be combined with plastic wood. The market price of the material matches the