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

A technology of isocyanate and composite materials, which is applied in the field of agricultural residue fiber/plastic composite materials and its preparation, can solve the problems that wood cannot meet the needs of economic construction and society, increase the cost of raw materials, etc., and achieve the improvement of physical and mechanical properties and the source of raw materials Extensive, the effect of improving the bond strength

Inactive Publication Date: 2007-04-18
LANGFANG HUARI FURNITURE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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 res

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Dry the wheat straw, cut it off, and then process it into shavings by a flaker, dry it, and reserve it; sort, dry, and crush the recycled waste plastics, and set it aside; take 90 kilograms of wheat straw and 10 kilograms of thermoplastics at normal temperature and pressure Mixing, high-pressure spraying 5kg of coupling agent and mixing; laying a certain number of slabs according to the required specifications; 1 to 20 minutes; cold-process and shape the hot-pressed boards, age and trim the composite boards.

Embodiment 2

[0039] The preparation process and conditions are similar to those in Example 1, except that the agricultural residue fiber used is rice straw, the amount of rice straw is 80% by weight, and the recycled plastic is 20% by weight. Accounting for 2% of rice straw weight.

Embodiment 3

[0041] The preparation process and conditions are similar to those in Example 1, except that the wheat straw and rice straw in Examples 1 and 2 are further processed into fiber or powder form.

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PUM

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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 ...

Claims

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Application Information

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IPC IPC(8): C08L97/02C08L23/00C08L27/06C08L25/08C08K5/29C08J5/18
Inventor 王正王志玲任一萍
Owner LANGFANG HUARI FURNITURE CO LTD
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