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A kind of multi-layer plastic-wood composite material board and preparation method thereof

A wood-plastic composite material and board technology, which is applied in the field of multi-layer wood-plastic composite board and its preparation, structural materials and its preparation, can solve the problem of poor nail-holding force of foamed porous plastic-wood composite material and solid wood-plastic composite material. Solve the problems of bulkiness, inconvenient transportation and installation, and achieve the effect of strong anchoring force, high rigidity and simple structure

Inactive Publication Date: 2016-05-25
G&S HUZHOU ENTERPRISES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But despite this, there are also certain defects in wood-plastic composite materials. For example, solid wood-plastic composite materials are bulky, inconvenient to transport and install, easy to warp and deform, and relatively high in cost. smaller, less powerful, etc.

Method used

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  • A kind of multi-layer plastic-wood composite material board and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0085] Embodiment 1: A kind of multi-layer plastic-wood composite board and its preparation method, its preparation process is:

[0086] (1) Benzene and ethanol were weighed at a mass ratio of 1:1 to prepare a mixed solvent, and the wood flour was extracted at 90°C for 8 hours with the mixed solvent to remove the wax in the wood flour, and then the wood flour was washed with tap water for 45 minutes. After drying to absolute dryness, modified wood powder is obtained;

[0087] (2) Mix polyethylene, modified wood flour (120 mesh), maleic anhydride grafted polyethylene, ultraviolet absorber, nano silicon dioxide (30nm), and glyceryl stearate according to the following parts by weight and use The extruder extrudes the molten material flow of the surface layer of the solid wood-plastic composite material, and the extrusion temperature is 170°C:

[0088] Polyethylene 25

[0089] Modified wood flour 100

[0090] Maleic anhydride grafted polyethylene 4

[0091] UV absorber 0.09

...

Embodiment 2

[0110] Embodiment 2: A kind of multi-layer plastic-wood composite material plate and its preparation method and its preparation method, its preparation process is:

[0111] (1) Benzene and ethanol were weighed at a mass ratio of 1:1 to prepare a mixed solvent, and the wood flour was extracted at 85°C for 6 hours with the mixed solvent to remove the wax in the wood flour, and then the wood flour was washed with tap water for 30 minutes. After drying to absolute dryness, modified wood powder is obtained;

[0112] (2) Mix polyethylene, modified wood flour (80 mesh), maleic anhydride grafted polyethylene, ultraviolet absorber, nano silicon dioxide (20nm), and glyceryl stearate according to the following parts by weight and use The extruder extrudes the molten material flow on the surface of the solid wood-plastic composite material, and the extrusion temperature is 160°C:

[0113] Polyethylene 20

[0114] Modified wood flour 100

[0115] Maleic anhydride grafted polyethylene 2 ...

Embodiment 3

[0135] Embodiment 3: A kind of multi-layer plastic-wood composite material plate and its preparation method and its preparation method, its preparation process is:

[0136] (1) Benzene and ethanol were weighed at a mass ratio of 1:1 to prepare a mixed solvent, and the wood flour was extracted at 95°C for 10 hours with the mixed solvent to remove the wax in the wood flour, and then the wood flour was washed with tap water for 60 minutes. After drying to absolute dryness, modified wood powder is obtained;

[0137] (2) Mix polyethylene, modified wood flour (160 mesh), maleic anhydride grafted polyethylene, ultraviolet absorber, nano silicon dioxide (40nm), and glyceryl stearate according to the following parts by weight and use The extruder extrudes the molten material flow on the surface of the solid wood-plastic composite material, and the extrusion temperature is 180°C:

[0138] Polyethylene 30

[0139] Modified wood flour 100

[0140] Maleic anhydride grafted polyethylene ...

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Abstract

A multilayer plastic-wood composite board includes a solid plastic-wood surface layer, a porous plastic-wood sandwich layer, and a solid plastic-wood core layer, wherein the sandwich layer is located between the surface layer and the core layer; the surface layer is formed through the melt blending and extrusion of polyethylene, modified wood powder, maleic anhydride grafted polyethylene, an ultraviolet light absorber, nano-silica and glyceryl stearate; the sandwich layer is formed through the melt blending and extrusion of polyethylene, modified wood powder, maleic anhydride grafted polyethylene, 4, 4'-oxybis (benzenesulfonyl hydrazide), citric acid, sodium bicarbonate and talcum powder; the core layer is formed through the melt blending and extrusion of polyethylene, modified wood powder, maleic anhydride grafted polyethylene, calcium carbonate powder, stearic acid and chlorinated polyethylene. The multilayer plastic-wood composite board provided by the invention has a reasonable design and a simple structure, and is convenient to manufacture; compared with other plastic-wood boards, the multilayer plastic-wood composite board has the advantages of larger surface strength, high hardness and rigidity, light weight, low costs for production, transportation and installation, as well as strong bolt anchoring force, and is applicable for the manufacture of indoor and outdoor floors, guardrails, decorative boards, and the like.

Description

technical field [0001] The invention relates to a multi-layer plastic-wood composite material board and a preparation method thereof, which relate to a composite material, a structural material and a preparation method thereof, and are suitable for making indoor and outdoor floors, guardrails, decorative boards, and the like. Background technique [0002] People have an affinity for wood, and home decoration is inseparable from wood. But the wood itself also has disadvantages. It is easy to shrink and crack, easy to deform when exposed to water, easy to mold when exposed to moisture, and easy to burn when exposed to fire. If it is made into plywood, formaldehyde will also pollute the room. However, the plastic-wood composite material formed by using wood powder and plastic as the main raw material and supplemented by other additives can maintain the advantages of wood and overcome the disadvantages of wood at the same time. After more than ten years of research, development...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B27/06B32B27/32B32B27/18C08L23/06C08L97/02C08L51/06C08L23/28C08K3/36C08K5/103C08K5/092C08K3/26C08K3/34
Inventor 周才良吕战强其他发明人请求不公开姓名
Owner G&S HUZHOU ENTERPRISES
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