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Method for preparing nanocellulose fiber optical transparent membrane material from peanut hulls

A nanocellulose and fiber optics technology, applied in fiber raw material processing, textile and papermaking, etc., can solve the problems of pollution, throwing away, waste of resources and environment, etc., and achieve the effect of simple and feasible method.

Inactive Publication Date: 2013-11-13
NANJING FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, except for a small part of peanut shells being used as feed, most of them are thrown away and burned, resulting in a great waste of resources and environmental pollution

Method used

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  • Method for preparing nanocellulose fiber optical transparent membrane material from peanut hulls
  • Method for preparing nanocellulose fiber optical transparent membrane material from peanut hulls
  • Method for preparing nanocellulose fiber optical transparent membrane material from peanut hulls

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] (1) Accurately weigh 10g of extracted peanut shell powder and put it into a 600ml beaker, add 500ml of distilled water; (2) Weigh 4.5g of sodium chlorite and measure 4ml of glacial acetic acid. Put it in a heat-collecting magnetic heating stirrer for 6 times, each time for 1 hour, because the heating reaction will release chlorine gas, so add a layer of plastic wrap to the mouth of the beaker to seal it, filter it with a Buchner funnel after treatment, and wash the residue repeatedly with distilled water , until the solution is neutral; (3) Weigh 10g of potassium hydroxide, add 500ml of distilled water to make a 2% solution, and put it in a collector type magnetic heating stirrer at a temperature of 90°C for 2 times, Treat for 2 hours each time, filter with a Buchner funnel after treatment, and wash the residue repeatedly with distilled water until the solution is neutral; (4) Grind the chemically treated peanut shell powder cellulose into a 1% solution for 30 times and ...

Embodiment 2

[0039] Example 2: figure 2 Effect of acid treatment times on experiment

[0040] (1) Accurately weigh 10g of the extracted peanut shell powder and put it into a 600ml beaker, add 500ml of distilled water; (2) Weigh 4.5g of sodium chlorite and measure 4ml of glacial acetic acid. Put it in a heat-collecting magnetic heating stirrer for 7 times, each time for 1 hour, because the heating reaction will release chlorine gas, so add a layer of plastic wrap to the mouth of the beaker to seal it, filter it with a Buchner funnel after treatment, and wash the residue repeatedly with distilled water , until the solution is neutral; (3) Weigh 10g of potassium hydroxide, add 500ml of distilled water to make a 2% solution, filter it with a Buchner funnel after treatment, and wash the residue repeatedly with distilled water until the solution is neutral ; (4) The chemically treated peanut shell powder cellulose was made into a 1% solution and ground for 30 times with a vacuum filter to obt...

Embodiment 3

[0042] (1) Accurately weigh 10g of the extracted peanut shell powder and put it into a 600ml beaker, add 500ml of distilled water; (2) Weigh 4.5g of sodium chlorite and measure 4ml of glacial acetic acid. Put it in a heat-collecting magnetic heating stirrer for 7 times, each time for 1 hour, because the heating reaction will release chlorine gas, so add a layer of plastic wrap to the mouth of the beaker to seal it, filter it with a Buchner funnel after treatment, and wash the residue repeatedly with distilled water , until the solution is neutral; (3) Weigh 10g of potassium hydroxide, add 500ml of distilled water to make a 2% solution, and put it in a collector type magnetic heating stirrer at a temperature of 90°C for 2 times, Treat for 2 hours each time, filter with Buchner funnel after treatment, and wash the residue repeatedly with distilled water until the solution is neutral; (4) Grind the chemically treated peanut shell powder cellulose into a 1% solution for 30 times an...

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Abstract

The invention discloses a method for preparing a nanocellulose fiber optical transparent membrane material from peanut hulls. The method comprises pretreatment, chemical treatment and mechanical treatment, wherein the pretreatment comprises the step of extracting resin, wax, fat and ether insoluble matters as well as tannins and pigments contained in the raw material by a benzene-alcohol extraction method, wherein the chemical treatment is to remove non-fiber components, hemicellulose and lignin in biomass fibers to obtain purified cellulose, and the mechanical treatment is to carry out nanocrystallization of the fibers by virtue of grinding, ultrasonics and homogenization, thereby obtaining the nanocellulose fibers. The method provided by the invention has the following advantages that in consideration of the facts that the forest area of China is limited and the peanut hull resources are rich but most wasted, the peanut hull cellulose is selected as the raw material and the nanocellulose optical transparent membrane with excellent properties can be prepared by extracting and dissolving the peanut hull cellulose, and therefore, the method has great practical significance and wide development prospect for rational utilization of the peanut hull resources and sustainable development of natural resources.

Description

technical field [0001] The invention relates to a method for preparing nano-cellulose fiber optically transparent film material by utilizing peanut shells. Background technique [0002] Cellulose is one of the most abundant natural polymer materials on earth, and its renewable nature makes it have excellent performance and wide application. my country's peanut shells are about 5000×10 3 tons, its dry matter contains a large amount of crude cellulose, lignin, hemicellulose, soluble carbohydrates, etc. [0003] Traditional sources of available natural cellulose are mainly wood, cotton stalks, etc. However, the limited wood resources in my country are in stark contrast to the increasing social demand, and many wood resources need to be imported. And China is the world's largest producer of peanuts, with an annual output of more than 14.5 million tons, accounting for 42% of the world's total output, and about 4.5 million tons of peanut shells each year. Peanut shells conta...

Claims

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Application Information

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IPC IPC(8): C08J5/18C08L1/02D21C5/00
Inventor 李大纲王宝霞蔡蓉
Owner NANJING FORESTRY UNIV
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