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A kind of preparation method of peony stem nano cellulose for oil

A technology of nanocellulose and oil peony, applied in the field of energy and chemical materials, can solve the problems of unreported development and utilization of peony stem nanofibers, and achieve the effects of improving comprehensive utilization value, improving performance and promoting healthy development.

Active Publication Date: 2016-08-17
佛山市南海绿巨人粮油有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Through reading relevant literature and patents at home and abroad, it is found that so far, there has been no report on the development and utilization of peony stem nanofibers, which is still a brand-new subject and has great development prospects.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Take 500g of peony stems, cut them into small sections with a length of 5-10cm, wash them with deionized water, remove the impurities in them, and dry the water at 40-50°C; split the dried peony stems into strips and cut them into lengths 2-3cm small pieces, pulverized with a pulverizer, sealed and stored after passing through a 60-mesh sieve; weighed 30g of peony stem powder, added 300mL of 5% NaOH solution, and heated and stirred in a water bath at 80°C for 4 hours to remove part of the lignin and half Cellulose, obtain a suspension after cooling; the suspension is centrifuged at a speed of 8000r / min for 10min, the supernatant is discarded, and 15g of the precipitate is added to 225mL of 4% H 2 o 2 solution, in a water bath at 60°C for 1 hour; the suspension was centrifuged at a speed of 8,000r / min for 10 minutes, and the supernatant was discarded after standing; after the sediment was centrifugally washed to neutrality, it was dried in a drying oven at 105°C and pulv...

Embodiment 2

[0021] Take 900g of peony stems, cut them into small sections with a length of 5-10cm, wash them with deionized water, remove the impurities, and dry the water at 40-50°C; split the dried peony stems into long strips and cut them into lengths 2-3cm small pieces, pulverized with a pulverizer, sealed and stored after passing through a 60-mesh sieve; weighed 50g of peony stem powder, added 500mL of 5% NaOH solution, and heated and stirred in a water bath at 80°C for 4 hours to remove part of the lignin and half Cellulose, obtain a suspension after cooling; the suspension is centrifuged at a speed of 8000r / min for 10min, the supernatant is discarded, and 25g of the precipitate is added to 375mL of 4% H 2 o 2 solution, in a water bath at 60°C for 1 hour; the suspension was centrifuged at a speed of 8,000r / min for 10 minutes, and the supernatant was discarded after standing; after the sediment was centrifugally washed to neutrality, it was dried in a drying oven at 105°C and pulveri...

Embodiment 3

[0023] Take 1500g of peony stems, cut them into small sections with a length of 5-10cm, wash them with deionized water, remove the impurities in them, and dry the water at 40-50°C; split the dried peony stems into strips and cut them into lengths 2-3cm small pieces, pulverized with a pulverizer, sealed and stored after passing through a 60-mesh sieve; weighed 90g of peony stem powder, added 900mL of 5% NaOH solution, and heated and stirred in a water bath at 80°C for 4 hours to remove part of the lignin and half Cellulose, obtain a suspension after cooling; the suspension is centrifuged at a speed of 8000r / min for 10min, the supernatant is discarded, and 45g of the precipitate is added to 675mL of 4% H 2 o 2 solution, in a water bath at 60°C for 1 hour; the suspension was centrifuged at a speed of 8,000r / min for 10 minutes, and the supernatant was discarded after standing; after the sediment was centrifugally washed to neutrality, it was dried in a drying oven at 105°C and pul...

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Abstract

The invention relates to a preparation method of peony stem nano-cellulose for oil and belongs to the technical field of energy and chemical materials. The method comprises the following steps: performing oxidation treatment on a peony stem which serves as an initial raw material through mild base, and bleaching the peony stem by hydrogen peroxide to obtain peony stem cellulose; then performing acidolysis on the peony stem cellulose which serves as the raw material to prepare the peony stem nano-cellulose. A production process is simple, achievement transformation is facilitated, the comprehensive utilization value of peony can be well increased, the aim of making the most of things is achieved, and the requirements of a national strategy of sustainable development are met. Furthermore, by comprehensively developing and utilizing peony resource wastes, a virtuous cycle for peony resource utilization can be further pushed, the development of the peony economy industry is promoted, and farmers become rich; healthy development of the local characteristic industry is promoted, the comprehensive competitive ability of an enterprise is effectively enhanced, and the peony stem nano-cellulose becomes a new economic growth point of the enterprise.

Description

technical field [0001] The invention relates to a method for preparing peony stem nanocellulose for oil, and belongs to the technical field of energy and chemical materials. Background technique [0002] Cellulose is the most abundant biodegradable and renewable natural polymer material in the world. In today's world facing the situation of rapid resource consumption and environmental degradation, it is of great strategic significance to focus on the development of renewable cellulose resources. [0003] Peony stems and peony seed shells, as by-products of peony processing, are mainly composed of cellulose, which is a new type of cellulose biological resource with great utilization value. However, at present, most of peony stems and peony shells are burned as dry firewood, which not only causes great waste of resources and huge economic losses, but also causes relatively serious environmental pollution. [0004] Nanotechnology is a brand-new science and technology graduall...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08B15/02
Inventor 于荟李建新袁卓刘延平王鲁霞
Owner 佛山市南海绿巨人粮油有限公司
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