Bamboo fiber/polypropylene composite material as well as preparation method and application thereof

A composite material and bamboo fiber technology, applied in the field of bamboo fiber/polypropylene composite material and its preparation, can solve the problems of bamboo fiber being difficult to disperse, poor compatibility, etc. The effect of increasing the interfacial adhesion

Inactive Publication Date: 2018-06-05
浙江明江新材料科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Bamboo fiber / polypropylene composites can be used in transportation, construction, packaging and transportation, furniture, industry, etc., but the bamboo fiber / polypropylene composites currently studied are rarely used in practical applications, because bamboo fiber and polypropylene The compounding of propylene faces many technical problems, for example, the bamboo fiber is not easy to disperse in the polypropylene resin, the compatibility of the two is not good, the fiber degradation of the bamboo fiber / polypropylene composite material occurs during the processing, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Step 1: Prepare modified bamboo fiber

[0030] First weigh bamboo fiber, wash it alternately with hydrochloric acid and water, put it into an oven to dry after washing; place the dried bamboo fiber and oleic acid for 6 hours, add methanol after standing, and the mass ratio of bamboo fiber: oleic acid: methanol is 1:2:4, after heating to 70°C, add 10% sodium dihydrogen phosphate of bamboo fiber mass and 10% N,N-dimethylacetamide of bamboo fiber mass, stir and react for 2 hours to obtain the reactant, wash with deionized water After freeze-drying, the modified bamboo fiber can be obtained.

[0031] Step 2: Prepare raw materials

[0032] In parts by weight, respectively select 25 parts of homopolypropylene, 25 parts of copolymerized polypropylene, 10 parts of calcium carbonate with a particle size of 2 microns, 3 parts of modified bamboo fiber, 0.1 part of coupling agent, 0.1 part of antioxidant, auxiliary 0.2 parts of antioxidant, 0.2 parts of lubricant;

[0033] Where...

Embodiment 2

[0043] Step 1: Prepare modified bamboo fiber

[0044] First weigh bamboo fiber, wash it alternately with hydrochloric acid and water, put it into an oven to dry after washing; place the dried bamboo fiber and oleic acid for 7 hours, add methanol after standing, and the mass ratio of bamboo fiber: oleic acid: methanol is 1:2:4, after heating to 75°C, add 13% sodium dihydrogen phosphate of bamboo fiber mass and 15% N,N-dimethylacetamide of bamboo fiber mass, stir and react for 2.5h to obtain the reactant, use deionized After washing with water, freeze-drying, the modified bamboo fiber can be obtained.

[0045] Step 2: Prepare raw materials

[0046] In terms of parts by weight, respectively select 30 parts of homopolypropylene, 45 parts of copolymerized polypropylene, 20 parts of calcium carbonate with a particle size of 3 microns, 10 parts of modified bamboo fiber, 0.3 parts of coupling agent, and 2 parts of compatibilizer. 0.2 parts of oxygen agent, 0.4 parts of auxiliary ant...

Embodiment 3

[0057] Step 1: Prepare modified bamboo fiber

[0058] First weigh bamboo fiber, wash it alternately with hydrochloric acid and water, and put it into an oven to dry after washing; place the dried bamboo fiber and oleic acid for 8 hours, add methanol after standing, and the mass ratio of bamboo fiber: oleic acid: methanol is 1:2:4, after heating to 78°C, add 15% sodium dihydrogen phosphate of bamboo fiber mass and 20% N,N-dimethylacetamide of bamboo fiber mass, stir for 3 hours, and use deionized water to obtain the reactant Washing, freeze-drying after washing, the modified bamboo fiber can be obtained.

[0059] Step 2: Prepare raw materials

[0060] According to parts by weight, select respectively 40 parts of homopolypropylene, 60 parts of copolymerized polypropylene, 30 parts of calcium carbonate with a particle size of 4 microns, 15 parts of modified bamboo fiber, 0.5 part of coupling agent, and 5 parts of compatibilizer. 0.3 parts of oxygen agent, 0.6 parts of auxiliary...

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PUM

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Abstract

The invention discloses a bamboo fiber / polypropylene composite material as well as a preparation method and application thereof. The bamboo fiber / polypropylene composite material specifically comprises the following raw materials in parts by weight: 50-100 parts of polypropylene, 10-30 parts of calcium carbonate, 3-15 parts of modified bamboo fibers, 0.1-0.5 part of a coupling agent, 0-5 parts ofa compatilizer, 0.1-0.3 part of an antioxidant, 0.2-0.6 part of an auxiliary antioxidant and 0.2-0.4 part of a lubricating agent. According to the bamboo fiber / polypropylene composite material disclosed by the invention, bamboo fibers in the raw materials are modified, and interfacial adhesion between the bamboo fibers and the polypropylene is increased. Moreover, by combining the coupling agent and the compatilizer, the problems that bamboo fibers are difficult to disperse in the polypropylene resin, the compatibility between the bamboo fibers and the polypropylene resin is poor and fiber degradation is easily caused in the processing flow are solved. The bamboo fiber / polypropylene composite material disclosed by the invention can be used for manufacturing automotive interior structure parts, decorations, kitchen utensils and the like.

Description

technical field [0001] The invention belongs to the field of polymer material modification, and in particular relates to a bamboo fiber / polypropylene composite material and a preparation method and application thereof. Background technique [0002] Polypropylene is a kind of thermoplastic, which is a general-purpose polymer material with low density, high strength, high hardness, resistance to bending fatigue, high heat resistance, good chemical resistance, easy processing and low price, and is widely used. [0003] my country is rich in bamboo resources and is the main bamboo producing country in the world. In recent years, the advantages of bamboo fiber as a thermoplastic reinforcement have attracted more and more attention. The processing of bamboo fiber reinforced thermoplastic composite materials consumes less energy and consumes less processing equipment. Small, which is conducive to saving energy, its most prominent advantages are cheap, degradable, renewable, and has ...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L23/14C08L97/02C08L83/04C08L51/06C08K13/02C08K3/26C08K5/13C08K5/20C08K5/098C08K5/544C08H8/00B29C47/92B29C48/92
CPCB29C48/92B29C2948/9259B29C2948/92704C08H8/00C08K2003/265C08K2201/003C08L23/12C08L23/14C08L2205/03C08L2205/035C08L2205/16C08L97/02C08K13/02C08K3/26C08K5/13C08K5/20C08L51/06C08L83/04C08K5/544C08K5/5435C08K5/098
Inventor 金江彬王艳宁李文龙朱淑洁
Owner 浙江明江新材料科技股份有限公司
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