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A kind of preparation method of resin-based bamboo fiber composite material

A composite material and bamboo fiber technology, which is applied in the field of composite material preparation, can solve problems such as poor adhesion, poor material performance, and small interface adhesion, and achieve the goal of enhancing strength performance, reducing consumption, and relieving pressure Effect

Active Publication Date: 2017-04-12
ZHEJIANG SCI-TECH UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, in the preparation of wood (bamboo) plastic composite materials, the polar plant fibers and the non-polar plastic matrix cannot be well bonded, the interface adhesion is very small, and a heterogeneous system is present microscopically. show poor performance of the material

Method used

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  • A kind of preparation method of resin-based bamboo fiber composite material
  • A kind of preparation method of resin-based bamboo fiber composite material

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Embodiment Construction

[0017] The present invention will be further elaborated below through specific embodiments. Examples will help to better understand the present invention, but the present invention is not limited only to the following examples.

[0018] The preparation method of this resin-based bamboo fiber composite material of the present invention, the method concrete steps are as follows:

[0019] (1), preparation of bamboo pulp fiber raw material: take kraft method bamboo pulp fiber as raw material, shred the pre-prepared bamboo pulp board, then put it into a vertical beater according to the standard specification for beating, the beating process is every other period Measure the degree of beating over time, and finally prepare bamboo pulp fibers with three specifications of beating degree of 30, 40 or 50, and then carry out dehydration treatment respectively, and store them in refrigerated bags respectively;

[0020] (2), the preparation of bamboo pulp fiber macromolecular initiator: ge...

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Abstract

The invention discloses a preparation method for a resin-based bamboo fiber composite material. The preparation method comprises the following steps: 1, preparation of a bamboo pulp fiber raw material; 2, preparation of a bamboo pulp fiber macro-initiator; 3, graft modification of pulp fibers: adding N,N-dimethylformamide (DMF) into a three-necked round-bottomed flask, adding CuBr2, N,N-pentamethyldiethylenetriamine (PMDETA), ascorbic acid (VC), isoprene and the bamboo pulp fiber macro-initiator in sequence, carrying out stirring at normal temperature for a reaction, conducting rinsing and suction filtration on a reaction product with ionized water, anhydrous ethanol and acetone, and carrying out vacuum drying; 4, compouding of the modified pulp fibers and resin: preparing the resin-based bamboo fiber composite material. The preparation method has the advantages that the strength of the resin-based bamboo fiber composite material is enhanced; the defect in the composition of the modified pulp fibers and the resin is overcome, so that the strength property of the resin-based bamboo fiber composite material is improved, the plastic consumption is reduced, and the demand pressure of a wood-plastic composite material is also relieved; meanwhile, certain positive significance is also provided for plastic recycling.

Description

technical field [0001] The invention relates to a preparation method of a composite material, in particular to a preparation method of a resin-based bamboo fiber composite material. Background technique [0002] Plant fiber material is composed of cellulose, hemicellulose, lignin and organic extracts. It is a kind of heterogeneous anisotropic material. Because of its surface rich in polar alcoholic hydroxyl functional groups, there are many molecules in or between molecules. Strong hydrogen bonding makes the surface of plant fiber materials show strong polarity and hydrophilicity, while most plastic substrates are non-polar and lipophilic substances. Therefore, in the preparation of wood (bamboo) plastic composite materials, the polar plant fibers and the non-polar plastic matrix cannot be well bonded, the interface adhesion is very small, and a heterogeneous system is present microscopically. shows poor performance of the material. Grafting and modifying bamboo pulp fiber...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L61/06C08L63/00C08L25/06C08L23/12C08L23/06C08L51/00C08K5/12C08F289/00C08F236/08
Inventor 张秀梅李剑飞
Owner ZHEJIANG SCI-TECH UNIV