Isocyanate strengthened agricultural residue fiber/plastic composite material and its preparation method

Abstract

This invention relates to a agricultural remainder / plastic composite enhanced by isocyanate. The weight percentage of its components is that agricultural remainder fabric material 10-60%, plastic 10-60%, couplant 0.3-10% which is percentage weighed by bone dry weight of agricultural remainder fabric material. It is complex made by the technology of wood based panel. Its preparation is that at first agricultural remainder fabric material is pretreated into paring, fiber or powder and dried with water content 0-25%, and then thermoplastic is classified and shattered into lamellar or granular; At last, two kinds of materials, together with 0.3-10% couplant, are mixed for pretreatment in ordinary temperature, then a mixed powder is made. Pavement and thermocompression are conducted at 130-223DEG C and 1-20MPa about 1-20min, then the plate is received by cutting-edge at ordinary temperature.

Description

technical field [0001] The invention relates to an isocyanate-reinforced agricultural residue fiber / plastic composite material and a preparation method thereof. Background technique [0002] In the 21st century, when my country's economic construction is developing steadily and people's living standards are constantly improving, the construction industry, furniture industry, interior decoration industry, packaging industry and the future wooden house construction industry have a great impact on the quantity and quality of wood and wood products. The demand for wood is growing day by day, but the supply of wood in our country is far from meeting the requirements of economic construction and social demand; "White pollution" has become one of the main pollution sources of the environment and soil. Under the situation of severe shortage of timber resources, urgent improvement of the ecological environment, and prominent contradiction between supply and demand, it is more and more ...

AI Technical Summary

Problems solved by technology

[0002] In the 21st century, when my country's economic construction is developing steadily and people's living standards are constantly improving, the construction industry, furniture industry, interior decoration industry, packaging industry and the future wooden house construction industry have a great impact on the quantity and quality of wood and wood products. The demand for wood is growing day by day, but the supply of wood in our country is far from meeting the requirements of economic construction and social demand; "White pollution" has become one of the main pollution sources of the environment and soil. Under the situation of severe shortage of timber resources, urgent improvement of the ecological environment, and prominent contradiction between supply and demand, it is more and more urgent to actively expand the raw material resources of the timber industry and actively develop them. new wood substitute

The plastic processing technology of mixing, extrusion, and injection molding is adopted above, and the wood-based panel processing enterprises need to add new equipment; the plant fiber is used as the filler of the plastic, and the obtained composite material mainly shows the body properties of the plastic; the surface treatment agent, The high temperature mixing of raw materials increases the cost of raw materials