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High-flexibility waste-wool-base biological plastic and preparation method thereof

A technology of bioplastics and flexibility, which is applied in the field of waste wool-based bioplastics and its preparation, can solve the problems of decreased moisture absorption performance, and achieve the effects of improving flexibility, good biocompatibility, and good flexibility

Active Publication Date: 2017-05-31
红蚂蚁装饰股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] After wool becomes powder, its physical and chemical form is very different from that of wool fiber. Studies have shown that wool powder has a much higher moisture retention rate than wool fiber, but its hygroscopicity decreases.

Method used

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  • High-flexibility waste-wool-base biological plastic and preparation method thereof
  • High-flexibility waste-wool-base biological plastic and preparation method thereof
  • High-flexibility waste-wool-base biological plastic and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Wool-based bioplastics were prepared as follows:

[0042] (1) Shorten the wool fiber to 3-5mm, put it in hot water, add detergent and wash it several times repeatedly to remove the grease on the wool surface; put the washed wool into the buffer solution with pH=8 prepared in advance , the bath ratio is 1:30, hot water pretreatment is carried out in OPS-40IS vertical pressure steam sterilizer, the pretreatment conditions are: temperature 130 ℃, time 40min; the wool after pretreatment is washed repeatedly to neutrality;

[0043] Preparation method of the buffer solution: take 500ml of 0.1mol / L potassium chloride solution, add 3.09g of boric acid to dissolve it, measure 25ml of boric acid-potassium chloride solution and 4.0ml, 0.1mol / L NaOH solution, mix evenly, add water to dilute to 200ml .

[0044] (2) Pour into liquid nitrogen, let the wool fiber saturated with water freeze rapidly, and then dry in a freeze dryer for 24 hours.

[0045] (3) Use a nano ball mill to pul...

Embodiment 2

[0053] Wool-based bioplastics were prepared as follows:

[0054] (1) Shorten the wool fiber to about 4mm, put it into hot water, add detergent and wash it several times repeatedly to remove the grease on the wool surface; put the washed wool into the buffer solution with pH=8 prepared in advance, The bath ratio is 1:30, and hot water pretreatment is carried out in the OPS-40IS vertical pressure steam sterilizer. The pretreatment conditions are: temperature 120°C, time 50min; the pretreated wool is washed repeatedly;

[0055] Preparation method of the buffer solution: take 500ml of 0.1mol / L potassium chloride solution, add 3.09g of boric acid to dissolve it, measure 25ml of boric acid-potassium chloride solution and 4.0ml, 0.1mol / L NaOH solution, mix evenly, add water to dilute to 200ml .

[0056] (2) Shred the wool, pour liquid nitrogen into it, freeze the wool fiber saturated with water quickly, and then dry it in a freeze dryer for 16 hours.

[0057] (3) Use a nano ball mi...

Embodiment 3

[0064] Wool-based bioplastics were prepared as follows:

[0065] (1) Shorten the wool fiber to about 4mm, put it into hot water, add detergent and wash it several times repeatedly to remove the grease on the wool surface; put the washed wool into the buffer solution with pH=8 prepared in advance, The bath ratio is 1:30, hot water pretreatment is carried out in OPS-40IS vertical pressure steam sterilizer, the pretreatment conditions are: temperature 135°C, time 30min; the pretreated wool is washed repeatedly;

[0066] Preparation method of the buffer solution: take 500ml of 0.1mol / L potassium chloride solution, add 3.09g of boric acid to dissolve it, measure 25ml of boric acid-potassium chloride solution and 4.0ml, 0.1mol / L NaOH solution, mix evenly, add water to dilute to 200ml .

[0067] (2) Shred the wool, pour liquid nitrogen into it, freeze the wool fiber saturated with water quickly, and then dry it in a freeze dryer for 20 hours.

[0068] (3) Use a nano ball mill to pu...

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Abstract

The invention discloses a high-flexibility waste-wool-base biological plastic and a preparation method thereof, belonging to the technical field of biological plastics. Quick freeze-drying is adopted to maximally keep the gaps in the wool fibers so as to provide a favorable environment for the fusion of the wool powder and plasticizer in the next step, so that more ethanediol can enter the inside of the wool fibers, thereby enhancing the disulfide bond rupture rate of the wool keratin. The liquid nitrogen freeze-drying treatment effectively enhances the flexibility of the wool-base biological plastic, so that the wool-base biological plastic has higher extensibility and smaller Young's modulus. The wool-base biological plastic is degradable, has favorable heat insulation, sound insulation and electric insulation properties, and is applicable to buildings, interior decoration and other fields with higher requirements for electric insulation, heat insulation and sound insulation. Meanwhile, the keratin biological plastic has favorable biocompatibility, is biodegradable, and has the biomedical potential.

Description

technical field [0001] The invention relates to a highly flexible waste wool-based bioplastic and a preparation method thereof, belonging to the technical field of bioplastics. Background technique [0002] With the continuous development and progress of society, people's awareness of environmental protection is also increasing, and the environmental pollution and sustainable development caused by petroleum-based plastics have attracted more and more attention. In recent years, research on the preparation of degradable and renewable bioplastics using renewable natural polymer materials as raw materials has attracted extensive attention from researchers. Wool, as a representative of natural biological protein materials, has a huge annual global output, accompanied by more and more waste wool due to technological requirements, equipment level, sheep types and other issues. Compared with the waste of these resources to landfill , causing environmental pollution and waste of re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K5/053C08L89/04
CPCC08K5/053C08L89/04
Inventor 侯秀良马博谋岳冬婷陈思宇胡慧聪
Owner 红蚂蚁装饰股份有限公司
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