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Application of injection molding wood plastic composite in producing electric appliance housing

An electrical enclosure, injection molding technology, applied in electrical equipment enclosures/cabinets/drawers, electrical components, etc., can solve the problems of electrical enclosures without wood-plastic materials, poor fluidity of wood-plastic composite materials, and unsuitable for manufacturing electrical enclosures. , to achieve the effect of low water absorption, low cost and good dimensional stability

Active Publication Date: 2010-06-23
KINGFA SCI & TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the existing wood-plastic preparation technology is mainly based on extrusion molding, hot pressing molding and extrusion molding technology, which are mainly used to produce plate products. The injection molding parts with complex molding structures are greatly restricted. The main problem is due to The wood-plastic composite material with a large amount of wood powder has poor fluidity, low strength and poor appearance quality
Therefore, the existing wood-plastic materials are not suitable for manufacturing electrical casings, and there are no reports of using wood-plastic materials for the production of electrical casings.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The raw material components are calculated in parts by weight:

[0025] Acrylonitrile-butadiene-styrene copolymer (ABS) 100 parts

[0026] 100 mesh wood flour 5 parts

[0027] 0.5 parts of liquid paraffin

[0028] Dibutyl phthalate 0.2 parts

[0029] N, N'-bisethylene stearamide 0.2 part

[0030] Polyolefin elastomer (POE) 1 part

[0031] Antioxidant 1010 0.1 parts

[0032] First dry the plant powder at 150°C for 8 hours, then mix it evenly in a high-mixer, then add it to the extruder to extrude and pelletize, and the processing temperature is controlled at 170°C to obtain wood powder-modified injection-grade propylene Nitrile-butadiene-styrene copolymer (ABS) wood-plastic composites.

[0033] The tested properties of the above wood-plastic composite materials are as follows:

[0034] Specific gravity 1.07

[0035] Tensile strength 36Mpa

[0036] Elongation 8%

[0037] Izod beam unnotched impact strength 145J / m

[0038] Bending strength 60MPa

[0039] Flexur...

Embodiment 2

[0042] The raw material components are calculated in parts by weight:

[0043] Polypropylene with a melt index of 10 g / 10 min 100 parts

[0044] 60 parts of 100 mesh wood flour

[0045] 2 parts liquid paraffin

[0046] 1 part dibutyl phthalate

[0047] N, N'-bisethylene stearamide 2 parts

[0048] γ-glycidyloxypropyltrimethoxysilane 1 part

[0049] Polyolefin elastomer (POE) 6 parts

[0050] Ethylene-acrylic acid copolymer (EAA) 5 parts

[0051] Antioxidant 1010 0.2 parts

[0052] Tris(2,4-di-tert-butylphenyl) phosphite 0.4 parts

[0053] First dry the plant powder at 100°C for 3 hours, then mix it evenly in the high mixer, then add it to the extruder to extrude and granulate, and the processing temperature is controlled at 180°C to obtain wood powder modified injection molding grade polymer Acrylic wood plastic composite.

[0054] The tested properties of the above-mentioned wood-plastic composite materials are as follows:

[0055] Specific gravity 1.12

[0056] Tens...

Embodiment 3

[0064] The raw material components are calculated in parts by weight:

[0065] 100 parts of polypropylene and maleic anhydride grafted modified polypropylene

[0066] 100 mesh wood flour 300 parts

[0067] 5 parts liquid paraffin

[0068] 4 parts dibutyl phthalate

[0069] N, N'-bisethylene stearamide 5 parts

[0070] 5 parts of γ-glycidyloxypropyltrimethoxysilane

[0071] Polyolefin elastomer (POE) 10 parts

[0072] Ethylene-acrylic acid copolymer (EAA) 5 parts

[0073] Ethylene-ethyl acrylate copolymer 3 parts

[0074] Antioxidant 1010 0.2 parts

[0075] Tris(2,4-di-tert-butylphenyl) phosphite 0.4 parts

[0076] First dry the plant powder at 1250°C for 5 hours, then mix it evenly in the high mixer, then add it to the extruder to extrude and granulate, and the processing temperature is controlled at 190°C to obtain wood powder modified injection molding grade polymer. Acrylic wood plastic composite.

[0077] The tested properties of the above-mentioned wood-plastic ...

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Abstract

The invention discloses the application of an injection molding wood plastic composite in producing electric appliance housing. The injection molding wood plastic composite is composed of the following components in part by weight: 100 parts of thermoplastic resin; 1-400 parts of plant powder; 0.1-40 parts of dispersing agent; 0.5-60 parts of impact modifier; 0-100 parts of inorganic filler; and 0-10 parts of antioxidant. It is found through long-term research that the injection molding wood plastic composite is extremely great for producing various electric appliance housings, hence, for thefirst time the injection molding wood plastic composite is brought into the production field of electric appliance housing, giving rise to tremendous revolutionary transform of the material for producing electric appliance housing. The injection molding wood plastic composite according to the invention, preferably the plant powder-modified thermoplastic wood plastic composite material, has the characteristics of good durability and dimensional stability, great easiness for molding, small water absorbability and excellent corrosion resistance compared with woods, and has the characteristics oflow cost and high rigidness compared with plastics.

Description

technical field [0001] The invention relates to the field of wood-plastic composite materials, in particular to a new application of injection-grade wood-plastic. Background technique [0002] Wood-plastic composite material is a new type of composite material that uses wood powder and thermoplastics as the main raw materials, adds a certain amount of additives, and is processed by mixing and extruding machines. The material can alleviate the amount of oil used, and at the same time, a large amount of waste wood powder is used. The development of this material can not only alleviate the consumption of oil resources in modern society, but also reduce the consumption of wood resources. It is an effective means to protect the environment and reduce energy consumption. Compared with wood, wood-plastic composite materials are durable, good dimensional stability, easy to shape, low water absorption, and corrosion resistance; compared with plastics, they have the characteristics of...

Claims

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Application Information

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IPC IPC(8): H05K5/00C08L101/00C08L97/02C08L55/02C08K5/00C08L23/12C08L51/06C08L25/06C08L23/04C08L27/06
Inventor 王林薄文海胡志华
Owner KINGFA SCI & TECH CO LTD
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