High-strength wood and plastic composite material and preparation method thereof
A wood-plastic composite material and high-strength technology, applied in the field of wood-plastic materials, can solve problems such as unsatisfactory mechanical properties, and achieve the effect of improving comprehensive mechanical properties and strength.
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[0026] Another aspect of the present invention provides a method for preparing the above-mentioned high-strength wood-plastic composite material, the preparation method comprising:
[0027] (1) Attapulgite, bentonite and coupling agent are mixed uniformly to obtain the first mixture;
[0028] (2) mixing polyethylene, wood powder, rice husk powder, straw powder, lubricant and anti-mold agent uniformly to obtain the second mixture;
[0029] (3) mixing the first mixture and the second mixture evenly, and then adding a single-screw extruder to granulate to obtain wood-plastic composite masterbatch;
[0030] (4) Process the wood-plastic composite masterbatch into a plate in a twin-screw extruder.
[0031] As a preferred solution, all components for preparing the high-strength wood-plastic composite material of the present invention can be obtained commercially.
[0032] As a preferred version, in step (1) to step (3), the mixing speed is 800-1000r / min, and the mixing time is 20-4...
Embodiment 1
[0037] This embodiment provides a high-strength wood-plastic composite material. In terms of parts by mass, the composite material includes: 60 parts of polyethylene, 15 parts of wood powder, 8 parts of rice husk powder, 8 parts of straw powder, 2 parts of attapulgite, 4 parts of bentonite, 3 parts of coupling agent, 3 parts of lubricant and 2 parts of mildewproof agent; Wherein, described polyethylene is high-density polyethylene, and described coupling agent is silane coupling agent, and described lubricant is poly Ethylene wax, the antifungal agent is pentachlorophenol.
[0038] The specific preparation method includes: (1) uniformly mixing attapulgite, bentonite and coupling agent to obtain the first mixture; (2) mixing polyethylene, wood powder, rice husk powder, straw powder, lubricant and anti-mold agent (3) mix the first mixture and the second mixture evenly, and then add them to a single-screw extruder for granulation to obtain wood-plastic composite masterbatch; (4) ...
Embodiment 2
[0040] This embodiment provides a high-strength wood-plastic composite material. In terms of parts by mass, the composite material includes: 70 parts of polyethylene, 18 parts of wood flour, 9 parts of rice husk powder, 9 parts of straw powder, 2.5 parts of attapulgite, 5 parts of bentonite, 3.5 parts of coupling agent, 3.5 parts of lubricant and 2.5 parts of mildewproof agent; Wherein, described polyethylene is high-density polyethylene, and described coupling agent is silane coupling agent, and described lubricant is paraffin , the antifungal agent is sodium o-phenylphenate.
[0041] The specific preparation method includes: (1) uniformly mixing attapulgite, bentonite and coupling agent to obtain the first mixture; (2) mixing polyethylene, wood powder, rice husk powder, straw powder, lubricant and anti-mold agent (3) mix the first mixture and the second mixture evenly, and then add them to a single-screw extruder for granulation to obtain wood-plastic composite masterbatch; ...
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