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Natural fiber reinforced polypropylene composite material and preparation method thereof

A natural fiber and composite material technology, applied in the field of natural fiber reinforced polypropylene composite material and its preparation, can solve the problems of not being able to use injection molding, no plant fiber desorption treatment, etc., and achieve good processing and forming performance, and comprehensive mechanical properties of degradability , The effect of simplifying the production process

Active Publication Date: 2012-07-18
ORINKO NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this patent, there is no desorption treatment for plant fibers, and only low-end profiles can be made, which cannot be used for injection molding

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Copolymerized polypropylene: 64 parts by weight

[0030] Homopolypropylene: 30 parts by weight

[0031] Toughener POE: 2 parts by weight

[0032] Processing aid EBS: 0.1 parts by weight

[0033] Compatibilizer polypropylene grafted maleic anhydride: 0.8 parts by weight

[0034] Heat stabilizer 1010: 0.1 parts by weight

[0035] Kenaf fiber: 3 weight

[0036] Polypropylene, heat stabilizer, processing aid, and toughening agent are melt mixed and dispersed in a rod extruder with a length-to-diameter ratio of 36:1, and kenaf fiber is fed from the side to extrude and granulate.

Embodiment 2

[0038] Copolymerized polypropylene: 34.3 parts by weight

[0039] Homopolypropylene: 40 parts by weight

[0040] Toughener POE: 2 parts by weight

[0041] Processing aid EBS: 0.3 parts by weight

[0042] Compatilizer polypropylene grafted acrylic acid: 3 parts by weight

[0043] Heat stabilizer 1010: 0.2 parts by weight

[0044] Heat stabilizer 168: 0.2 parts by weight

[0045] Ramie fiber: 20 parts by weight

[0046] Polypropylene, heat stabilizer, processing aid, and toughening agent are melt mixed and dispersed in a rod extruder with a length-to-diameter ratio of 36:1, and ramie fiber is fed from the side to extrude and granulate.

Embodiment 3

[0048] Copolymerized polypropylene: 60 parts by weight

[0049] Toughener POE: 4 parts by weight

[0050] Processing aid calcium stearate: 0.5 parts by weight

[0051] Compatilizer polypropylene grafted acrylic acid: 5 parts by weight

[0052] Heat stabilizer 1010: 0.3 parts by weight

[0053] Heat stabilizer 168: 0.2 parts by weight

[0054] Bamboo powder: 30 parts by weight

[0055] Polypropylene, thermal stabilizers, processing aids, and toughening agents are melt-mixed and dispersed in a rod extruder with a length-to-diameter ratio of 40:1, and bamboo powder is fed from the side to extrude and granulate.

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PUM

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Abstract

The invention discloses a natural fiber reinforced polypropylene composite material and a preparation method thereof. The preparation method mainly comprises the following steps of: firstly, carrying out ultrasonic surface desorption processing on a chopped natural fiber tow; then heating by microwaves for rapid dehydrating and drying; after uniformly mixing polypropylene, a flexibilizer, a lubricant, a compatilizer and a heat stabilizer, adding the mixture into an extruder; adding fibers in a laterally feeding mode; and after melting, carrying out extrusion, cooling, air-drying and grain-sized slicing to obtain the natural fiber reinforced polypropylene composite material. The preparation method disclosed by the invention is simple and has a reasonable formula. The prepared material has the advantages of environmental friendliness, sound adsorption, heat insulation, low density, low shrinkage factor, good processing forming performance, degradable property and excellent comprehensive mechanical property.

Description

technical field [0001] The invention relates to a natural fiber reinforced polypropylene composite material and a preparation method thereof, belonging to the technical field of polymer materials. Background technique [0002] At present, the material for preparing automotive interior parts is mainly modified polypropylene filled with mineral powder. The product has good size, easy processing and molding, and low price. However, with the increasing calls for lightweight vehicles and energy-saving and emission-reduction in recent years, more and more attention has been paid to modified plastics with high comprehensive performance and low density. Natural plant fiber is a material with good comprehensive performance, which can be used to replace mineral powder or even glass fiber to meet the material requirements. There are many kinds of natural fibers, such as sisal, flax, hemp, ramie and bamboo fibers. Comprehensive comparison, the performance of ramie fiber is the best am...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L23/14C08L97/02C08J5/06
Inventor 筱璘李健益李荣群任东方安峰周海
Owner ORINKO NEW MATERIAL CO LTD
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