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Red-clay reinforced polyethylene wood-plastic composite material and preparation method thereof

A technology of wood-plastic composite material and red clay, which is applied in the field of red clay reinforced polyethylene wood-plastic composite material and its preparation, can solve the problems of flammability and achieve the effect of optimizing mechanical properties

Inactive Publication Date: 2018-11-02
ZHONGSHAN POLYTECHNIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Jiang Yingtao's research results show that acrylic emulsion is often used as a film-forming material in water-based flame-retardant coatings, but it is flammable itself.

Method used

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  • Red-clay reinforced polyethylene wood-plastic composite material and preparation method thereof

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preparation example Construction

[0035]According to the second aspect of the present invention, there is provided a method for preparing the above-mentioned red clay-reinforced polyethylene wood-plastic composite material, comprising: mixing red clay, wood fiber, polyethylene, coupling agent and lubricant to prepare The mixture is extruded and granulated to obtain raw material particles, and the raw material particles are made into red clay-reinforced wood-plastic composite materials through extrusion molding, injection molding or compression molding.

[0036] Further, extrusion granulation is: extruding and granulating the raw material particles in a twin-screw extruder;

[0037] Further, the temperature of the twin-screw extruder is set to 150-170°C in zone 1, 155-175°C in zone 2, 160-180°C in zone 3, 160-180°C in zone 4, 175-195°C in zone 5, and 160°C in zone 6. -180°C, zone 7 155-175°C;

[0038] Furthermore, the temperature of the twin-screw extruder is set to 155-165°C in zone 1, 160-170°C in zone 2, 16...

Embodiment 1

[0046] Red clay is prepared according to the ratio of 0.5 parts of MgO content, 15 parts of Al2O3 content, 60 parts of SiO2 content, 2 parts of K2O content, 2 parts of CaO content and 7 parts of Fe2O3 content. After soaking for 24 hours, put the red clay in a vacuum mud mixer for refining to make it reach the proper toughness, and refine it 8 times. After the refining is completed, the red clay is soaked in water for a week, and finally the refined red clay is dried to a moisture content of 3%, then milled, screened with an 80-mesh sieve, and sealed for later use. The poplar wood board is crushed, screened with a 40-mesh sieve, and dried at 90°C until its moisture content is 3% to prepare wood fiber. The above-mentioned red coat clay accounted for 0%, wood fiber accounted for 54%, polyethylene accounted for 42%, coupling agent accounted for 3%, and lubricant accounted for 1% ratio to mix and prepare a mixture, and the mixture was placed Extruded and granulated by twin-screw e...

Embodiment 2

[0048] The red clay is prepared according to the ratio of 1.5 parts of MgO content, 16 parts of Al2O3 content, 62 parts of SiO2 content, 2.5 parts of K2O content, 2.2 parts of CaO content, and 7.5 parts of Fe2O3 content. After soaking for 24 hours, put the red clay in a vacuum mud mixer for refining to make it reach the proper toughness, and refine it 8 times. After refining, the red clay is soaked in water for a week, and finally the refined red clay is dried to a moisture content of 2.5%, then milled, sieved with an 80-mesh sieve, and sealed for later use. Poplar wood boards are crushed, screened with a 45-mesh sieve, and dried at 95° C. until their moisture content is 4% to prepare wood fibers. The above-mentioned red clay clay accounts for 3%, wood fiber accounts for 56%, polyethylene accounts for 40%, coupling agent accounts for 4%, and lubricant accounts for 0% ratio to mix and prepare the mixture, and the mixture is placed Extruded and granulated by twin-screw extruder...

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Abstract

The invention provides a red-clay reinforced polyethylene wood-plastic composite material and a preparation method thereof, which relates to the technical field of the preparation of clay composite materials. The red-clay reinforced polyethylene wood-plastic composite material is prepared from a mixture prepared by mixing red clay, wood fiber, polyethylene, a coupling agent and a lubricating agent, wherein the mixture is extruded and granulated to obtain raw material particles, extruding molding or injection molding or pressing molding is performed on the raw material particles, and the red-clay reinforced polyethylene wood-plastic composite material is obtained. By adding the red clay, the ignition time of the polyethylene wood-plastic composite material is prolonged, the heat release rate and the heat release amount can be reduced, and the smoke release amount can be inhibited; and moreover, the residual amount of charcoal after the material is combusted can be increased, and a flame-retardant effect can be achieved.

Description

technical field [0001] The invention relates to the technical field of clay composite material preparation, in particular to a red clay clay reinforced polyethylene wood-plastic composite material and a preparation method thereof. Background technique [0002] As a new type of material, wood plastic composite (WPC) has the advantages of low cost and good mechanical properties, and is of great significance in environmental protection and resource utilization. The key to the improvement of biomass materials is to select reasonable modification methods or modified materials to improve material performance and endow materials with new performance characteristics, that is, the composite effect of materials. In the preparation process of WPC, by adding red clay and compounding it, a new type of wood composite material with excellent performance can be prepared, which can replace high-quality rare wood and realize the efficient utilization of low-quality wood, which is an effective...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L97/02C08L23/06C08K3/34C08K3/22C08K3/36
CPCC08K2003/2206C08K2003/222C08K2003/2227C08K2003/2272C08L97/02C08L2201/02C08L23/06C08K3/346C08K3/22C08K3/36
Inventor 潘质洪李庆德
Owner ZHONGSHAN POLYTECHNIC
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