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Modified hemp stalk core powder composition

A compound and hemp technology, applied in the direction of manufacturing tools, wood processing appliances, etc., can solve the problems of poor compatibility of direct compounding of hemp stalk core powder and polymers, and achieve the effects of dimensional stability, not easy to shrink, and improved mechanical properties.

Inactive Publication Date: 2011-05-04
HUAQIAO UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to solve the problem of poor direct composite compatibility between hemp stalk powder and polymer, and to provide an improved product that is easier to process, has better dispersibility, and can simultaneously improve the interface bonding with the polymer matrix and improve the mechanical properties of the product. Sexual hemp stalk powder complex

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The modified hemp stalk core powder compound of the present invention is based on ethylene-vinyl acetate copolymer (EVA) containing 18% vinyl acetate, and certain elastomers, fillers and additives are added, and the elastomer is ethylene-octene copolymer (POE), the filler is hemp stalk powder, and the additives include: crosslinking agent dicumyl peroxide (DCP), foaming agent azodicarbonyl ammonium (AC), dispersion activator zinc oxide (ZnO), Heat stabilizer zinc stearate (StZn), and a small amount of stearic acid (Hst) and ethylene-acrylic acid copolymer (EAA), etc. The components are compounded and banburyed. Their weight percentage relative to EVA is:

[0020] POE 15.38%

[0021] Hemp Stalk Powder 38.46%

[0022] EAA 7.69%

[0023] DCP 0.92%

[0024] AC 4.62%

[0025] ZnO 1.54%

[0026] StZn 1.08%

[0027] Hst 1.23%

[0028] The final product obtained can be directly used to make various sports shoes, casual shoes and the like. It not only makes it more bre...

Embodiment 2

[0030] The modified hemp stalk powder compound of the present invention is based on styrene-butadiene-styrene (SBS), and certain fillers and additives are added, the filler is hemp stalk powder, and the additives include: ethylene-acrylic acid copolymerization (EAA), styrene (PS), heat stabilizer zinc stearate (StZn), stearic acid (Hst) and naphthenic oil, etc. The components are mixed and banburyed. Their weight percent relative to styrene-butadiene-styrene (SBS) is:

[0031] Hemp Stalk Powder 40%

[0032] PS 35%

[0033] EAA 4%

[0034] StZn 10%

[0035] Hst 0.5%

[0036] Naphthenic oil 0.5%

[0037] The final product obtained by injection molding is stable in size, reliable in performance, not easy to shrink, and has breathable properties. It can be directly used to make various sports shoes, casual shoes, etc., and the inside of the shoes will not generate stuffy heat and breed bacteria. At the same time, the product is degradable and will not cause environmental po...

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Abstract

The invention discloses a modified composition of hemp rod core, which comprises the following parts: 35-90wt% hemp rod core powder, 10-65wt% compatible agent, 0-5wt% one or more manufacturing adjuvant and 0-20wt% one or more additive. The composition can be an organic filler to be added into other polymer base directly, which modifies the boundary connection of composite material and improves the mechanic property with low cost.

Description

technical field [0001] The invention relates to a natural fiber reinforced composite material, in particular to a modified hemp stalk core powder composite. Background technique [0002] Fiber-reinforced composite materials are an important branch of material science. Traditional fiber-reinforced materials mainly include artificial synthetic fibers such as glass fibers, aramid fibers, or carbon fibers. They generally have high energy consumption, high cost, and easy to cause environmental pollution. and other problems, and various natural fibers (such as hemp fiber, bamboo fiber, cotton fiber, etc.) not only have the strength and stiffness of traditional fibers, but also are a kind of green fiber that is light, cheap, naturally degradable, and environmentally friendly. In recent years, with the enhancement of human environmental awareness, the research, development and application of natural fiber reinforced composite materials have become one of the hot spots of research an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L97/02B27L11/06C08K5/09C08L51/00C08L91/06C08K3/26C08K3/36
Inventor 陈国华连惠山卢亮蔡昌顺李玉超
Owner HUAQIAO UNIVERSITY
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