Polyethylene/eucalyptus wood powder composite material, and preparation method thereof

A technology of composite material and eucalyptus powder, which is applied in the field of polyethylene/eucalyptus powder composite material and its preparation, can solve the problem of no high value-added utilization of eucalyptus powder, and achieve the improvement of mechanical properties, compatibility, and The effect of interfacial bond strength

Inactive Publication Date: 2018-11-30
GUANGXI UNIV FOR NATITIES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0018] The purpose of the present invention is to provide a polyethylene / eucalyptus powder composite material and its preparation method. There is no high value-added utilization, and with the rapid development of construction, decoration and other industries, the demand for wood is increasing. A large amount of recycled polyethylene plastic and eucalyptus wood powder are used to produce high-performance polyethylene / eucalyptus wood Powder-wood-plastic composite materials replace wood to reduce deforestation, eliminate "white pollution", protect the ecological environment, and improve the high-value recycling of resources

Method used

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  • Polyethylene/eucalyptus wood powder composite material, and preparation method thereof
  • Polyethylene/eucalyptus wood powder composite material, and preparation method thereof
  • Polyethylene/eucalyptus wood powder composite material, and preparation method thereof

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Embodiment 1

[0037] A polyethylene / eucalyptus powder composite material, the composition of the composite material by weight percentage content includes: dry eucalyptus powder 60%; recycled polyethylene 33%; LDPE-g-MAH modifier 5%; paraffin 0.3%; 0.7% polymer wax; 0.5% calcium stearate and 0.5% lead stearate; the dry eucalyptus wood powder is 60-80 mesh in fineness and dried at 120°C until the moisture weight percentage is ≤2% Dry eucalyptus wood powder; the LDPE-g-MAH modifier is a self-made high grafting rate low density polyethylene grafted maleic anhydride, and the grafting rate is not less than 1.3%; the reclaimed polyethylene is reclaimed After the high-quality LDPE plastic is cleaned, crushed, dried and granulated, it is made into pellets with a moisture content of ≤0.5% and a particle size of less than 12mm.

[0038] The preparation method of described polyethylene / eucalyptus powder composite material, comprises the following steps:

[0039] (1) Take various raw materials accordin...

Embodiment 2

[0042]A polyethylene / eucalyptus powder composite material, the composition of the composite material by weight percentage content includes: dry eucalyptus powder 65%; recycled polyethylene 25%; LDPE-g-MAH modifier 8%; paraffin 0.4%; 0.6% polymer wax; 0.5% calcium stearate and 0.5% lead stearate; the dry eucalyptus wood powder is 80-100 mesh in fineness and dried at 160°C until the moisture weight percentage is ≤2% dry eucalyptus wood powder; the LDPE-g-MAH modifier is high grafting rate low density polyethylene grafted maleic anhydride, the grafting rate is not less than 1.3%; the reclaimed polyethylene will be reclaimed After washing, crushing, drying, and granulation, PE plastics are made into pellets with a moisture content of ≤0.5% and a particle size of less than 12mm.

[0043] The preparation method of described polyethylene / eucalyptus powder composite material, comprises the following steps:

[0044] (1) Take various raw materials according to the weight percentage con...

Embodiment 3

[0047] A polyethylene / eucalyptus powder composite material, the composition of the composite material by weight percentage content includes: dry eucalyptus powder 65%; recycled polyethylene 23%; LDPE-g-MAH modifier 10%; paraffin 0.3%; 1.0% polymer wax; 0.1% calcium stearate and 0.6% lead stearate; the dry eucalyptus wood powder has a fineness of 100-120 mesh and is dried at 140°C until the moisture weight percentage is ≤2%. Dry eucalyptus wood powder; the LDPE-g-MAH modifier is a self-made high grafting rate low density polyethylene grafted maleic anhydride, and the grafting rate is not less than 1.3%; the reclaimed polyethylene is reclaimed After the high-quality HDPE plastic is cleaned, crushed, dried, and granulated, it is made into pellets with a moisture content of ≤0.5% and a particle size of less than 12mm.

[0048] The preparation method of described polyethylene / eucalyptus powder composite material, comprises the following steps:

[0049] (1) Take various raw materia...

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Abstract

The invention belongs to the technical field of wood plastic composite material, and more specifically relates to a polyethylene / eucalyptus wood powder composite material, and a preparation method thereof. The polyethylene / eucalyptus wood powder composite material is composed of, by weight, 60 to 70% of dried eucalyptus wood powder, 13 to 33% of recycled polyethylene, 5 to 15% of LDPE-g-MAH modifying agent, 0.1 to 1.0% of paraffin, 0.1 to 1.0% of high molecular wax, 0.1 to 1.0% of calcium stearate, and 0.1 to 1.0% of lead stearate. The raw materials are cheap and widely available; the using amount of the LDPE-g-MAH modifying agent is low; wood powder filling amount is high; the mechanical properties are excellent; the polyethylene / eucalyptus wood powder composite material can be widely used in the fields such as household products, common section bars, vehicles and ships, and public transportation to take the place of timber and plastic.

Description

technical field [0001] The invention belongs to the technical field of wood-plastic composite materials, and in particular relates to a polyethylene / eucalyptus wood powder composite material and a preparation method thereof. Background technique [0002] As a new type of environmentally friendly material, wood-plastic composites are filled with waste biomass materials such as crushed wood chips, bamboo chips, and straws into resins such as polyethylene, polypropylene, and polyvinyl chloride or recycled waste plastics. It is prepared by extrusion, molding, injection molding and other molding methods. It has a wide range of sources, low price, and has the advantages of both plastic and wood. It can replace wood and plastic and is widely used in household products, public profiles, vehicles and ships, public transportation and other fields. However, due to the poor compatibility between the hydrophilic wood filler and the hydrophobic resin matrix, the interface bonding strengt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L97/02C08L23/06C08L51/06C08L91/06C08L101/00C08K5/098
CPCC08K2201/014C08L97/02C08L2205/035C08L2205/08C08L2207/20C08L23/06C08L51/06C08L91/06C08L101/00C08K5/098
Inventor 刘祖广谢俊康丰波
Owner GUANGXI UNIV FOR NATITIES
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