Unlock instant, AI-driven research and patent intelligence for your innovation.

Injection molding grade wood-plastic composite material and preparation method thereof

A wood-plastic composite material, injection molding-grade technology, applied in the field of polymer materials, can solve the problems of poor compatibility, poor fluidity of wood-plastic composite materials, poor mechanical properties of composite materials, etc., achieve good quality, improve mechanical properties and flow Sexuality, the effect of strong mechanical properties

Inactive Publication Date: 2020-05-01
肇庆国立新材料有限公司 +1
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, wood-plastic composites are usually prepared by extrusion molding, hot-pressing molding, and extrusion molding. However, due to the addition of a large amount of plant fibers, the fluidity of wood-plastic composites is poor. The compatibility between them is poor, resulting in poor mechanical properties of the prepared composites

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0021] In one embodiment, the preparation method of the regenerated polyethylene includes at least the following steps: stirring and mixing the polyethylene with a polymerization inhibitor, an antioxidant, and an auxiliary agent, followed by pyrolysis and granulation; the pyrolysis and granulation includes in turn: Preheating section, cracking section, and cooling section; the temperature of the preheating section is 200-210°C, the screw speed is 40-50 rpm, and the time is 0.5-2min; the temperature of the cracking section is 300-310°C , the screw speed is 200-220 rpm, and the time is 0.5-2min; the temperature of the cooling section is 130-150°C, the screw speed is 30-40 rpm, and the time is 0.5-2min, and finally the recycled polymer is prepared vinyl.

[0022] In a preferred embodiment, the preparation method of the regenerated polyethylene includes at least the following steps: stirring and mixing polyethylene with hydroquinone, antioxidant 168, antioxidant DLTP, and calcium ...

Embodiment 1

[0070] Embodiment 1 of the present invention provides an injection-grade wood-plastic composite material, comprising the following components in parts by weight: 80 parts of recycled polyethylene, 80 parts of plant fiber, 10 parts of coupling agent, 8 parts of dispersant, antioxidant 2 parts of agent, 5 parts of filler, 10 parts of PE grafted maleic anhydride.

[0071] The preparation method of the regenerated polyethylene comprises the following steps: stirring and mixing the polyethylene with hydroquinone, antioxidant 168, antioxidant DLTP, and calcium oxide, and then cracking and granulating; the cracking and granulating includes in turn: Hot section, cracking section, cooling section; the temperature of the preheating section is 200°C, the screw speed is 40 turns / min, and the time is 1min; the temperature of the cracking section is 300°C, and the screw speed is 200 turns / min, The time is 1 min; the temperature of the cooling section is 130° C., the screw speed is 30 rpm, a...

Embodiment 2

[0084] Embodiment 2 of the present invention provides an injection-grade wood-plastic composite material, comprising the following components in parts by weight: 50 parts of recycled polyethylene, 60 parts of plant fiber, 5 parts of coupling agent, 2 parts of dispersant, antioxidant 0.5 parts of agent, 1 part of filler, 5 parts of PE grafted maleic anhydride.

[0085] The preparation method of the regenerated polyethylene comprises the following steps: stirring and mixing the polyethylene with hydroquinone, antioxidant 168, antioxidant DLTP, and calcium oxide, and then cracking and granulating; the cracking and granulating includes in turn: Hot section, cracking section, cooling section; the temperature of the preheating section is 200°C, the screw speed is 40 turns / min, and the time is 1min; the temperature of the cracking section is 300°C, and the screw speed is 200 turns / min, The time is 1 min; the temperature of the cooling section is 130° C., the screw speed is 30 rpm, an...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
particle sizeaaaaaaaaaa
particle sizeaaaaaaaaaa
particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention relates to the technical field of high polymer materials, in particular to an injection molding grade wood-plastic composite material and a preparation method thereof. The composite material at least comprises the following components in parts by weight: 50-100 parts of regenerated polyethylene, 60-100 parts of plant fibers, 5-20 parts of a coupling agent, 2-15 parts of a dispersingagent, 0.5-5 parts of an antioxidant, 1-10 parts of filler and 5-15 parts of PE grafted maleic anhydride. The composite material is prepared from regenerated polyethylene, plant fibers, a coupling agent, a dispersing agent, an antioxidant, filler and PE grafted maleic anhydride, wherein the regenerated polyethylene, the plant fibers, the coupling agent, the dispersing agent, the antioxidant, the filler and the PE grafted maleic anhydride have a good synergistic effect, so that the prepared composite material is excellent in mechanical property and good in flowability.

Description

technical field [0001] The invention relates to the technical field of polymer materials, and more specifically, the invention relates to an injection-grade wood-plastic composite material and a preparation method thereof. Background technique [0002] Wood-plastic composites (Wood-Plastic Composites, WPC) refers to the use of polyethylene, polypropylene and polyvinyl chloride, etc., instead of the usual resin adhesive, mixed with more than 50% of waste plant fibers such as wood powder, rice husk, straw, etc. It is a new type of composite material produced by making new wood materials, and then through extrusion, molding, injection molding and other plastic processing techniques. Compared with traditional materials, wood-plastic composite materials have a lower cost due to the use of a large amount of discarded plant fibers. The development of this material can effectively alleviate the consumption of petroleum resources in modern society, ease the amount of petroleum, and a...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L97/02C08L51/06C08K13/02C08K3/26
CPCC08L23/06C08L97/02C08L2205/035C08L2205/03C08L2207/20C08L2205/08C08L2201/08C08K2003/265C08L51/06C08K13/02C08K3/26
Inventor 黄喜劳嘉亮乔志龙
Owner 肇庆国立新材料有限公司