Preparation method of banana nanofiber

A nanofiber, banana technology, applied in the field of fiber processing, can solve the problems of affecting fiber purity, poor quality of banana fiber, short nanofiber length, etc.

Active Publication Date: 2018-06-15
GUANGXI ZHUANG AUTONOMOUS REGION ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Because banana waste contains more lignin and colloid, these impurities will greatly affect the purity of fiber extraction. If degumming and pretreatment cannot be carried out well, nanofibers will be short in length, too thick, and low in strength, which will easily cause Technical Defects of Poor Banana Fiber Quality

Method used

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  • Preparation method of banana nanofiber
  • Preparation method of banana nanofiber

Examples

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Effect test

Embodiment 1

[0031] The present embodiment provides a kind of banana nanofiber preparation method, and this method comprises the steps:

[0032] (1) Raw material pretreatment: take the banana peel, leaves or stems and cut them into sections, and then tear the pieces into flakes with a thickness of 0.5 mm, press, scrape, and dry to obtain hemp;

[0033] (2) Degumming treatment: the hemp in step (1) is sequentially subjected to expansion treatment, oxidation treatment, acid treatment, biological enzyme treatment, enzyme inactivation treatment, dehydration, oil supply, and drying to obtain crude fiber;

[0034]The processing method of the puffing treatment is: mix the hemp with the sodium hydroxide solution whose mass concentration is 2g / L and mix according to the solid-to-liquid mass ratio of 1:17, then rapidly heat to 95°C, and boil at constant temperature for 20min, Drain the sodium hydroxide solution, remove the hemp, put it in hot water with a pressure of 7MPa and a temperature of 90°C a...

Embodiment 2

[0052] The present embodiment provides a kind of banana nanofiber preparation method, and this method comprises the steps:

[0053] (1) Raw material pretreatment: take banana skin, leaves or stems and cut them into sections, and then tear the pieces into flakes with a thickness of 2mm, press, scrape, and dry to obtain hemp;

[0054] (2) Degumming treatment: the hemp in step (1) is sequentially subjected to expansion treatment, oxidation treatment, acid treatment, biological enzyme treatment, enzyme inactivation treatment, dehydration, oil supply, and drying to obtain crude fiber;

[0055] The processing method of the puffing treatment is: mix the hemp with the sodium hydroxide solution whose mass concentration is 4g / L and mix according to the solid-to-liquid mass ratio of 1:22, then rapidly heat to 100°C, and boil at constant temperature for 30min, Drain the sodium hydroxide solution, remove the hemp, put it in hot water with a pressure of 8MPa and a temperature of 95°C and ke...

Embodiment 3

[0072] The present embodiment provides a kind of banana nanofiber preparation method, and this method comprises the steps:

[0073] (1) Raw material pretreatment: take the banana peel, leaves or stems and cut them into sections, and then tear the pieces into flakes with a thickness of 1mm, press, scrape, and dry to obtain hemp;

[0074] (2) Degumming treatment: the hemp in step (1) is sequentially subjected to expansion treatment, oxidation treatment, acid treatment, biological enzyme treatment, enzyme inactivation treatment, dehydration, oil supply, and drying to obtain crude fiber;

[0075] The processing method of the puffing treatment is as follows: mixing hemp with a sodium hydroxide solution with a mass concentration of 3g / L according to a solid-to-liquid mass ratio of 1:20, then rapidly heating to 98°C, and boiling at a constant temperature for 25 minutes, Drain the sodium hydroxide solution, remove the hemp, put it in hot water with a pressure of 7.5MPa and a temperatu...

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Abstract

The invention relates to the technical field of fiber processing, in particular to a preparation method of banana nanofiber. The banana nanofiber is prepared according to the following three steps: (1), pretreating a raw material; (2), degumming; (3), preparing the nanofiber, wherein during degumming, puffing treatment, oxidation treatment, acid treatment, bioenzyme treatment, enzyme deactivationtreatment, dehydration, oil supply and drying are combined for pretreating crude banana hemp. Through organic combination of the treatment ways, colloid, lignin and hemicellulose in the crude banana hemp can be effectively removed, and the purposes of removing impurities and increasing the fiber content are achieved; a good raw material is provided for subsequent preparation of the nanofiber. Theinvention further prepares the banana nanofiber by an electrospinning technology. By the technology, the yield of the banana nanofiber can be effectively increased, the impurities can be effectively removed, the banana nanofiber with smaller fineness is produced, and thus the quality of the banana nanofiber is improved.

Description

【Technical field】 [0001] The invention relates to the technical field of fiber processing, in particular to a method for preparing banana nanofibers. 【Background technique】 [0002] With the advancement of science and technology and the rapid development of industrial and agricultural production, the amount of waste on the earth is increasing day by day. They are not only unsightly, but also often constitute a source of pollution and become a headache. At present, straw waste is mostly used for incineration, direct burial to prepare fertilizer, or direct fermentation to prepare feed, etc., but these are comparatively Low value-added processing, and straw is rich in protein, cellulose, pectin, lignin, hemicellulose, etc. If these substances can be further purified, the added value of straw waste will be greatly increased. Produce products with higher performance and turn waste into treasure. [0003] At present, my country has become a major producer of bananas. Bananas wil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F8/02D01F8/14D01F8/18D01F1/10D01C1/02D01D5/00
CPCD01C1/02D01D5/003D01D5/0076D01D5/0092D01F1/10D01F8/02D01F8/14D01F8/18
Inventor 辛明孙健李丽李昌宝唐雅园周主贵何雪梅郑凤锦李志春零东宁盛金凤李杰民刘国明
Owner GUANGXI ZHUANG AUTONOMOUS REGION ACAD OF AGRI SCI
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