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Plant powder modified thermoplastic wood-plastic composite and preparation method and application

A technology of wood-plastic composite material and vegetable powder, which is applied in the field of vegetable powder-modified thermoplastic wood-plastic composite material and its preparation, can solve the problems of poor appearance quality, poor fluidity, low strength of parts, etc., and achieves low cost and stable size Good performance and easy molding

Inactive 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

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The raw material components are calculated in parts by weight:

[0027] Acrylonitrile-butadiene-styrene copolymer (ABS) 100 parts

[0028] 100 mesh wood flour 5 parts

[0029] 0.5 parts of liquid paraffin

[0030] Dibutyl phthalate 0.2 parts

[0031] N, N'-bisethylene stearamide 0.2 parts

[0032] Polyolefin elastomer (POE) 1 part

[0033] Antioxidant 1010 0.1 parts

[0034] 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.

[0035] The tested properties of the above-mentioned wood-plastic composite materials are as follows:

[0036] Specific gravity 1.07

[0037] Tensile strength 36Mpa

[0038] Elongation 8%

[0039] Izod beam unnotched impact strength 145J / m

[0040] Bending strength 60MPa

[0...

Embodiment 2

[0044] The raw material components are calculated in parts by weight:

[0045] Polypropylene with a melt index of 10 g / 10 min 100 parts

[0046]60 parts of 100 mesh wood flour

[0047] 2 parts liquid paraffin

[0048] 1 part dibutyl phthalate

[0049] N, N'-bisethylene stearamide 2 parts

[0050] γ-glycidyloxypropyltrimethoxysilane 1 part

[0051] Polyolefin elastomer (POE) 6 parts

[0052] Ethylene-acrylic acid copolymer (EAA) 5 parts

[0053] Antioxidant 1010 0.2 parts

[0054] Tris(2,4-di-tert-butylphenyl) phosphite 0.4 parts

[0055] 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.

[0056] The tested properties of the above-mentioned wood-plastic composite materials are as follows:

[0057] Specific gravity 1.12

[0058] Ten...

Embodiment 3

[0066] The raw material components are calculated in parts by weight:

[0067] 100 parts of polypropylene and maleic anhydride grafted modified polypropylene

[0068] 100 mesh wood flour 300 parts

[0069] 5 parts liquid paraffin

[0070] 4 parts dibutyl phthalate

[0071] N, N'-bisethylene stearamide 5 parts

[0072] 5 parts of γ-glycidyloxypropyltrimethoxysilane

[0073] Polyolefin elastomer (POE) 10 parts

[0074] Ethylene-acrylic acid copolymer (EAA) 5 parts

[0075] Ethylene-ethyl acrylate copolymer 3 parts

[0076] Antioxidant 1010 0.2 parts

[0077] Tris(2,4-di-tert-butylphenyl) phosphite 0.4 parts

[0078] 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.

[0079] The tested properties of the above-mentioned wood-plastic ...

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Abstract

The invention discloses a plant powder modified thermoplastic wood-plastic composite and a preparation method and application thereof. The composite is composed of the following components by weight portion: 100 portions of thermoplastic resin, 1-400 portions of plant powder, 0.1-40 portions of dispersant, 0.5-60 portions of impact modifier, 0-100 portions of inorganic filler and 0-10 portions of antioxidant. Compared with wood, the plant powder modified thermoplastic wood-plastic composite prepared by the method has the advantages of durability, good dimensional stability, easy molding, small water absorption and corrosion resistance. Compared with plastics, the composite has the characteristics of low cost and high rigidity. The composite is suitable for a variety of injection molding parts, such as the shells of electrical equipment including TV, and the like.

Description

technical field [0001] The invention relates to the field of wood-plastic composite materials, in particular to a plant powder modified thermoplastic wood-plastic composite material and its preparation technology and application. Background technique [0002] The plant powder used in wood-plastic materials includes sawdust powder, fruit shell powder, bamboo powder, straw powder, chaff powder, other crops or plant stem and leaf powder, etc., which have a wide range of sources and low prices. Making full use of these materials is a process of governance. A way to beautify the environment. [0003] Wood-plastic composite material is a new type of composite material that uses plant 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 on...

Claims

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Application Information

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IPC IPC(8): C08L101/00C08L97/02C08K5/00
Inventor 薄文海王林刘建中
Owner KINGFA SCI & TECH CO LTD
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