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Whisker enhanced plant fiber composite material, preparation method and application thereof

A plant fiber and composite material technology, which is applied in the field of whisker-reinforced plant fiber composite materials, to achieve the effect of improving impact strength and accelerating impact energy dissipation

Inactive Publication Date: 2019-01-11
XIAMEN HUSKS NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The plant fiber products made by the above patents can be completely degraded, more environmentally friendly, and have better high temperature resistance, strength, density and hardness, which can meet the needs of kitchen utensils, tableware, toys, etc., but their strength still needs to be further improved. in order to increase its scope of application

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] (1), prepare the mixed solution of 35wt% ethanol / deionized water, and adjust the pH value to 5 with glacial acetic acid. Heat the mixture to 95°C, add 0.5 parts of KH-550 for hydrolysis for 5 minutes. Add 5 parts of calcium carbonate whiskers to the mixed solution and stir evenly at a speed of 30r / min. Finally, dehydrate, dry, and cool to room temperature to obtain modified calcium carbonate whiskers for use. Among them, the calcium carbonate whiskers have a whisker length of 50-80 μm, a diameter of 0.5-1.2 μm, and an aragonite content of 98%.

[0024] (2) Take 40 parts of rice husk fiber powder, 10 parts of gum arabic, and 15 parts of corn gelatinized starch and mix them uniformly in a high-speed mixer, then take them out and pass through a 60-mesh sieve to obtain rice husk fiber resin powder. The rice husk fiber powder is prepared from rice husks through high-temperature sterilization, drying, crushing and sieving, the water content is 5 wt%, and the particle size i...

Embodiment 2

[0028] (1), prepare the mixed solution of 50wt% ethanol / deionized water, and adjust the pH value to 4 with glacial acetic acid. Heat the mixture to 100°C, add 1 part of KH-570 for hydrolysis for 8 minutes. Add 10 parts of calcium carbonate whiskers to the mixed solution and stir evenly at a speed of 50r / min. Finally, dehydrate, dry, and cool to room temperature to obtain modified calcium carbonate whiskers for use. Among them, the calcium carbonate whiskers have a whisker length of 50-80 μm, a diameter of 0.5-1.2 μm, and an aragonite content of 98.5%.

[0029] (2) Take 60 parts of rice husk fiber powder, 12 parts of gum arabic, and 18 parts of high-amylose corn gelatinized starch and mix them evenly in a high-speed mixer, then take them out and pass through a 60-mesh sieve to obtain rice husk fiber resin powder. The rice husk fiber powder is prepared from rice husk through high-temperature sterilization, drying, crushing and sieving. The water content is 6 wt%, and the parti...

Embodiment 3

[0033] (1), prepare the mixed solution of 40wt% ethanol / deionized water, and adjust the pH value to 5 with glacial acetic acid. Heat the mixture to 90°C, add 1 part of KH-560 for hydrolysis for 10 minutes. Add 15 parts of calcium carbonate whiskers to the mixed solution and stir evenly at a speed of 40r / min. Finally, dehydrate, dry, and cool to room temperature to obtain modified calcium carbonate whiskers for use. Among them, the calcium carbonate whiskers have a whisker length of 50-80 μm, a diameter of 0.5-1.2 μm, and an aragonite content of 98.5%.

[0034] (2) Take 50 parts of straw fiber powder, 12 parts of gum arabic, and 18 parts of high-amylose corn gelatinized starch and mix them uniformly in a high-speed mixer, then take them out and pass through a 60-mesh sieve to obtain straw fiber resin powder. The straw fiber powder is prepared from straw through high-temperature sterilization, drying, crushing and sieving, the water content is 6 wt%, and the particle size is l...

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Abstract

The invention relates to a whisker enhanced plant fiber composite material, a preparation method and an application thereof. The whisker enhanced plant fiber composite material is prepared from the following components in parts by weight: 40-60 parts of plant fiber powder, 10-15 parts of natural resin powder, 10-20 parts of gelatinized starch, 5-15 parts of calcium carbonate whisker and 0.5-1 partof silane coupling agent. According to the invention, calcium carbonate whisker is served as filler, so that the crack growth can be stopped, the effect of accelerating impact energy consumption through plastic deformation of interface can be achieved and the purpose of enhancing can be achieved. In the invention, silane coupling agent is used for modifying calcium carbonate whisker, silane coupling agent after modification is connected or coated on the whisker surface so as to form a coating layer, and meanwhile, silane coupling agent has a longer molecular chain and is easy to form molecular entanglement with resin so as to form a flexible interface layer, so that the dispersibility of calcium carbonate whisker in resin is promoted, the interfacial compatibility between calcium carbonate whisker and resin is improved and the purpose of promoting strength of product is achieved.

Description

technical field [0001] The invention relates to the field of plant fiber composite materials, in particular to a whisker-reinforced plant fiber composite material, a preparation method and application thereof. Background technique [0002] The plant fiber products made of rice husk fiber or plant fiber, whose raw materials are all derived from nature, have the characteristics of green and environmental protection. They can be degraded into organic fertilizers in nature and return to nature, so they have broad market prospects. [0003] Plant fiber products generally use plant fiber as the base material, starch as the binder, and add other processing aids and functional aids, etc., and quickly cool down after high-temperature rapid prototyping. Chinese patent ZL201210151467.7 discloses a rice husk fiber synthetic resin powder, first grind the rice husk into rice husk powder, then put it into a mixer, add cellulose, starch and water and mix evenly, then take it out and cool it...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L97/02C08L5/00C08L3/02C08L3/12C08L93/02C08K9/06C08K7/08
CPCC08L97/02C08L2205/035C08L5/00C08L3/02C08L3/12C08L93/02C08K9/06C08K7/08
Inventor 庄展鹏柯婵陈鉥
Owner XIAMEN HUSKS NEW MATERIAL TECH CO LTD
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