Natural bamboo fibers modified by nano-cellulose whiskers and preparing method of natural bamboo fibers

A technology of nano-cellulose and cellulose whiskers, which is applied in fiber raw material treatment, fiber chemical post-treatment, and microbial/enzymatic cellulose treatment, etc., can solve the problems of rare bamboo fiber performance improvement, bamboo fiber performance and Efficiency can not be balanced and other issues, to achieve the effect of improving comprehensive economic value, improving work efficiency, and efficient separation

Active Publication Date: 2017-01-04
中山华沙利科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented technology involves modifying or adding certain materials into wood pulp during manufacturing process for making stronger products like paper. By doing this, it becomes possible to create new sources that have better quality than traditional ones while reducing environmental impact. Additionally, these modifications help break down large amounts of biological wastes such as blood clots (BSC), proteins, carboxylates, sugars, amino acids, polysaccharides, oligosaccarbons, organics, mineral salts, gases, nitrogen oxide, sulfur dioxide, carbon monoxygens, formaldehydes). These modification techniques allow for improved properties of the resulting product even at very small scales.

Problems solved by technology

This patented technical problem addressed in this patents relates to developing efficient ways to produce high quality bamboy (fiberg) without causing environmental pollution due to waste products generated when producing these types of fibers made up of b ammonium hydroxyproponulfonum salt called guaiazole dihydrogen sulfonate (GDDS), which causes harmful side reactions like oxidative breakdown at certain points along their lengths. Previous attempts were either unsuccessfully attempted or resulted in poor results. To address this issue, new techniques involving combining different sources of raw materials together may be developed.

Method used

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  • Natural bamboo fibers modified by nano-cellulose whiskers and preparing method of natural bamboo fibers
  • Natural bamboo fibers modified by nano-cellulose whiskers and preparing method of natural bamboo fibers

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] (1) fresh bamboo is cut into slices to form a length of 3cm and a bamboo chip of 2mm in thickness. With a bath ratio of 1:30, the bamboo chip is immersed in the lye of 3% cellulase in a mass fraction, the pH of the lye The value is 8.5, boiled for 20 minutes, taken out, rolled for 3 minutes, and dried to obtain pretreated bamboo fiber.

[0029] (2) the pretreated bamboo fiber bundle is placed in the steam explosion treatment device, gas explosion treatment 5min under 2MPa pressure, take out, wash with water, filter to obtain the bamboo fiber bundle, through carding, the length is greater than 5cm to be the original long fiber of bamboo, and the rest is Bamboo staple fiber.

[0030] (3) With a material ratio of 1g:8ml, place bamboo short fibers in an acetic acid solution, take out and wash with water to take out the acetic acid, then add a deionized aqueous solution, and ultrasonically pulverize for 10 minutes to form fibers with a mass fraction of 0.5% and a particle size

Embodiment 2

[0033] (1) fresh bamboo is cut into slices to form a length of 5cm and a bamboo chip of 3mm in thickness. With a bath ratio of 1:40, the bamboo chip is immersed in the lye of 5% cellulase in a mass fraction, the pH of the lye The value is 9, boiled for 30 minutes, taken out, rolled for 5 minutes, and dried to obtain pretreated bamboo fiber.

[0034] (2) the pretreated bamboo fiber bundle is placed in the steam explosion treatment device, gas explosion treatment 10min under 3MPa pressure, take out, wash with water, filter to obtain the bamboo fiber bundle, through carding, the length is greater than 5cm to be the original long fiber of bamboo, and the rest is Bamboo staple fiber.

[0035] (3) With a material ratio of 1g:10ml, place bamboo short fibers in acetic acid solution, take out and wash with water to take out acetic acid, then add deionized aqueous solution, and ultrasonically pulverize for 10 minutes to form fibers with a mass fraction of 3% and a particle size of 30nm Ve

Embodiment 3

[0038](1) fresh bamboo is cut into slices to form a length of 4cm, a thickness of 2.5mm bamboo chips, with a bath ratio of 1:35, the bamboo chips are immersed in the lye that the mass fraction is 4% cellulase, the lye The pH value is 8.7, boiled for 25 minutes, taken out, rolled for 4 minutes, and dried to obtain pretreated bamboo fiber.

[0039] (2) The pretreated bamboo fiber bundle is placed in a steam explosion treatment device, and is subjected to gas explosion treatment under a pressure of 2.2MPa for 6 minutes, taken out, washed with water, and filtered to obtain the bamboo fiber bundle, and after carding, the length is greater than 5cm to be the original long fiber of bamboo, and the rest It is bamboo staple fiber.

[0040] (3) With a material ratio of 1g:9ml, place bamboo short fibers in acetic acid solution, take out and wash with water to take out acetic acid, then add deionized aqueous solution, and ultrasonically pulverize for 10 minutes to form fibers with a mass fra

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Abstract

The invention provides natural bamboo fibers modified by nano-cellulose whiskers and a preparing method of the natural bamboo fibers. The preparing method specifically comprises the following steps that fresh bamboos are cut off and sliced into bamboo chips, the bamboo chips are steeped into an alkali solution containing cellulase, boiled, taken out, rolled and spin-dried, and pretreated bamboo fibers are obtained; the pretreated bamboo fibers are put into a steam explosion treatment device for steam explosion treatment, taken out, washed with water and filtered, bamboo fiber bundles are obtained, and long natural bamboo fibers and short natural bamboo fibers are obtained through combing; the short natural bamboo fibers are put into an acetic acid solution, ultrasonic crushing is carried out, and a cellulose whisker solution is formed; the long natural bamboo fibers are combed and twisted to form initial-spun fibers, then the initial-spun fibers are steeped into the cellulose whisker solution, ammonium hydroxide is dropwise added, the initial-spun fibers are taken out and subjected to vacuum drying, and the natural bamboo fibers modified by nano-cellulose whiskers are formed.

Description

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Claims

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Application Information

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Owner 中山华沙利科技有限公司
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