Stalk wood-plastic composite material and preparation method thereof

Abstract

The invention discloses a stalk wood-plastic composite material, which is prepared from the following raw materials in parts by weight: 25 to 35 parts of stalks, 10 to 18 parts of sawdust, 30 to 40 parts of discard polythene foam plastics, 3 to 7 parts of HDPE-g-MAH, 5 to 10 parts of castor oil, 4 to 9 parts of active carbon, 2 to 5 parts of graphite, 6 to 12 parts of bentonite, 5 to 10 parts of calcium carbonate, 1 to 4 parts of aramid fiber, 4 to 9 parts of feldspar powder, 2 to 5 parts of nano-zinc oxide, 1.2 to 1.8 parts of flame retardants, 0.4 to 0.8 part of foaming agents and 0.7 to 1.5parts of antioxidants. The composite material uses the stalks as major raw materials; through the cooperated matched effect with other raw materials, good anti-folding and pressure-resistant performance is realized; the mechanical property is excellent; the chemical corrosion resistance and mechanical resistant performance are high; meanwhile, the stalk recovery and utilization problems are solved; the green and environmental-friendly effects are achieved.

Description

technical field [0001] The invention relates to the field of straw recycling, in particular to a straw wood-plastic composite material and a preparation method thereof. Background technique [0002] In recent years, crop straw has become a new source of rural non-point source pollution. Every year during summer harvest and autumn and winter, a large amount of wheat, corn and other stalks are always burned in the fields, producing a lot of thick smoke, which not only becomes the bottleneck of rural environmental protection, but even becomes the chief culprit that affects the urban environment. According to relevant statistics, my country, as a large agricultural country, can produce more than 700 million tons of straw every year, which becomes "waste" that is "not very useful" but must be disposed of. In this case, if it is completely handled by farmers, there will be a large amount of burning, which will seriously pollute the environment and be harmful to human health. Crop...

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Problems solved by technology

[0005] All of the above products have been produced with straw as the main raw material, which has solved the problem of straw recycling and recycling. Especially in the field of fertilizers, the use of straw is more common, but the application of straw in the field of wood-plastic composite materials is not so common. , there is a wide field to be developed

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