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Plant fiber-high-density polyethylene composite material and preparation method thereof

A technology of high-density polyethylene and plant fiber, which is applied in the field of wood-plastic composite materials, can solve the problems of low addition of plant fiber and difficult two-phase compatibility between plant fiber and resin interface, achieve good processing performance and improve mechanical properties , Overcome the effect of being afraid of moths

Active Publication Date: 2011-01-26
DONGGUAN MINGFENG PACKAGING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the disadvantages of difficult two-phase compatibility between plant fiber and resin interface in the prior art, and the addition of plant fiber is not high, and to provide a plant fiber high-density polyethylene composite material with low cost and excellent performance and its preparation method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] The base material of plant fiber high-density polyethylene composite material in this embodiment contains 60wt% wood powder, 40wt% high-density polyethylene, auxiliary agents: the content of impregnating agent butyl acrylate is 5wt% of plant fiber, initiator benzoyl peroxide The content is 2wt% of plant fiber, the content of accelerator dimethyl aniline is 1wt% of plant fiber, the content of stabilizer epoxy soybean oil is 4wt% of plant fiber, the content of antioxidant 1076 is plant fiber and high density 0.5wt% of the total weight of the polyethylene plastic, and the content of the lubricant stearic acid is 1.2wt% of the total weight of the plant fiber and the high-density polyethylene plastic.

[0013] Preparation: (1) Plant fiber pretreatment: crush wood processing waste with a grinder, sieve to make 80-mesh wood powder, and then place it in an oven at 65°C for 48 hours to dry to a water content of 4.8%, and then Stir in a stirrer, adjust the speed to 60r / min, add b...

Embodiment 2

[0016] The plant fiber high-density polyethylene composite base material of this embodiment contains 65% bamboo powder, 35% high-density polyethylene plastic recycling pellets; auxiliary agent: the content of impregnating agent butyl acrylate is 4.5wt% of plant fiber, initiator The content of benzoyl peroxide is 1.5wt% of the plant fiber, the content of the accelerator dimethylaniline is 1.2wt% of the plant fiber, the content of the stabilizer epoxy soybean oil is 3.5wt% of the plant fiber, and the antioxidant 1076 The content of the stearic acid is 0.45wt% of the total amount of plant fibers and high-density polyethylene plastics, and the content of the lubricant stearic acid is 1.0wt% of the total amount of plant fibers and high-density polyethylene plastics.

[0017] The preparation method is the same as in Example 1.

[0018] The product of this embodiment has a tensile strength of 18MPa, a bending strength of 13MPa, and an impact strength of 20kJ / m 2 .

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Abstract

The invention discloses a plant fiber-high-density polyethylene composite material and a preparation method thereof. The plant fiber-high-density polyethylene composite material is prepared by mixing the base stock of plant fibers and high-density polyethylene resin and the auxiliaries of butyl acrylate serving as an impregnant, benzoyl peroxide serving as an initiator, dimethylaniline serving as a promoter, epoxidized soybean oil serving as a stabilizer, antioxidant 1076 and stearic acid serving as a lubricating agent, wherein the base stock contains 50 to 90 weight percent of plant fibers and 10 to 50 weight percent of high-density polyethylene resin. The plant fiber-high-density polyethylene composite material has the advantages of low preparation cost, lighter pollutions to the environment, capability of saving timber resources and being sawn, planed and nailed, and high machinability of timbers, and overcomes the shortcoming that the timbers can be easily damaged by worms.

Description

technical field [0001] The invention relates to a wood-plastic composite material, in particular to a plant fiber high-density polyethylene composite material and a preparation method thereof. Background technique [0002] Existing composite wood, such as composite flooring, etc. are all made of multiple pieces of wood directly added to the binder, and its cost is relatively high; moreover, the binder used often contains formaldehyde, which causes environmental pollution; it also has serious adverse effects on human health. At present, some people are studying plant fiber wood-plastic composite materials; however, due to the different surface properties of plant fiber and resin matrix, the interface bonding effect is poor when the two are combined, which leads to the reduction of various properties of the composite material and affects the composite material. Widespread application of materials. On the other hand, due to the poor compatibility between the fiber and the plas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L51/00C08L23/06C08K5/18C08K5/1515C08K5/09B29B9/06B29C51/46
Inventor 曾广胜孟聪
Owner DONGGUAN MINGFENG PACKAGING CO LTD