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Bamboo-based/thermoplastic plastic nanocomposite material

A technology of nano-composite materials and thermoplastics, applied in the field of bamboo-based/thermoplastics nano-composites and their processing, can solve problems such as poor interface bonding, low melt flow rate, and easy mold growth, and achieve improved impact strength and improved Improvement of production speed, mold resistance, and interfacial compatibility

Active Publication Date: 2013-04-17
ANHUI AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the poor interfacial bonding of bamboo fibers and thermoplastics in the blending process of traditional bamboo-based / thermoplastic composites, resulting in low melt flow rate and low physical and mechanical properties, and the traditional bamboo-based / thermoplastic Plastic composite surfaces are prone to mold growth

Method used

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  • Bamboo-based/thermoplastic plastic nanocomposite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Example 1, after sieving the bamboo processing residue, obtain a moisture content of 3%, and a particle diameter of 10 mesh bamboo fibers, utilize absolute ethanol 1% (percentage by weight, the same below) and silane coupling agent 4% modified ZnO 7% of nano-particles, the surface-modified nano-ZnO particles and 60% of 10-mesh bamboo fiber are dried to a dry state at 105°C (that is, baked to constant weight at 100-105°C), and polypropylene pellets 25% and 3% of maleic anhydride grafted polypropylene pellets were sequentially added into the high-speed mixer, and mixed at a speed of 3000r / min for 8min. The blended raw materials are poured into a twin-screw extruder for granulation, and the pellets are extruded in a single-screw extruder to obtain a composite material.

Embodiment 2

[0021] Embodiment 2, the moisture content obtained after sieving the bamboo processing residue is 8%, and the particle diameter is 100 mesh bamboo fiber, utilizes dehydrated alcohol 0.8% (percentage by weight, the same below) and silane coupling agent 3% modified ZnO 6% of nano-particles, surface-modified nano-ZnO particles and 59% of 100-mesh bamboo fiber, dried to dryness at 105°C, mixed with 28% of polypropylene pellets and 3.2% of maleic anhydride grafted polypropylene pellets Add it to the high-speed mixer in turn, and mix for 9 minutes at a speed of 2800r / min. The blended raw materials are poured into a twin-screw extruder for granulation, and the pellets are extruded in a single-screw extruder to obtain a composite material.

Embodiment 3

[0022] Embodiment 3, after sieving the bamboo processing residue, obtain the bamboo fiber with a water content of 5% and a particle diameter of 200 meshes, utilize absolute ethanol 0.5% (percentage by weight, the same below) and silane coupling agent 2.5% to modify ZnO 4% of nano-particles, 55% of surface-modified nano-ZnO particles and 200-mesh bamboo fiber, dried to dryness at 105°C, mixed with 30% of polypropylene pellets and 8% of maleic anhydride grafted polypropylene pellets Add it to a high-speed mixer in turn, and mix for 10 minutes at a speed of 2500 r / min. The blended raw materials are poured into a twin-screw extruder for granulation, and the pellets are extruded in a single-screw extruder to obtain a composite material.

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Abstract

The invention relates to a bamboo-based / thermoplastic plastic nanocomposite material and manufacturing technology thereof. The technology comprises the following steps of: using a thermoplastic plastic as a matrix, and using bamboo fibers as an enhanced phase; modifying the bamboo fibers through nano particles so as to improve the compatibility with the matrix, the flux flow rate and the mold resistance of the composite material; and manufacturing the bamboo-based / thermoplastic plastic nanocomposite material through highly mixing, pelleting, extrusion molding, and other processing technology.The invention provides a bamboo-based / thermoplastic plastic nanocomposite material which has the advantages of high physical mechanical strength, high interface compatibility, high flux flow rate andhigh mold resistance. The bamboo processed wastes and wasted plastics are fully utilized, and the ecological environment is protected. The product can be applied to outdoor gardening landscape, outdoor furniture, outdoor floors, wall hanging boards, guardrails, trays, packaging cases and automotive interior decoration materials, and the like.

Description

technical field [0001] The invention relates to a board and a production method thereof, in particular to a bamboo base / thermoplastic nanocomposite material and a processing method thereof. Background technique [0002] my country is rich in bamboo resources, and the total area of ​​existing bamboo forests is more than 5.4 million hectares, accounting for one-third of the total area of ​​bamboo forests in the world. In the past two decades, my country has done a lot of work in the development and utilization of bamboo resources, which has made the industrial utilization of bamboo develop strongly. At present, China has become the world's largest producer of bamboo wood-based panels. Bamboo wood-based panels mainly include bamboo laminated wood, bamboo glulam, bamboo plywood, etc. During the processing of these products, a large number of bamboo processing residues are produced, such as bamboo chips, bamboo stumps, bamboo knots, and bamboo branches produced during bamboo cutt...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L97/02C08L23/12C08L51/06C08L23/06C08L27/06C08L25/06C08K9/06C08K3/22C08K3/36C08K3/08
Inventor 郭勇陈玉霞刘盛全黄成林郭晓磊李晶晶
Owner ANHUI AGRICULTURAL UNIVERSITY
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