Method for preparing biomass-based stabilizer with farming and forestry residues

A technology of residues and biomass, which is applied in the field of preparing biomass-based stabilizers, can solve the problems of polluting the environment, wasting resources, and not being fully and effectively utilized, and achieves the effect of reducing pollution and stabilizing the effect

Inactive Publication Date: 2018-09-04
JIANGXI ACAD OF FORESTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A large number of residues will be produced in agricultural and industrial production activities, most of which will be treated as wa

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Sorting, drying, crushing, grinding and sieving of agricultural and forestry residues, taking 10g of residue powder after sorting, particle size of 300 mesh, water content of 5%, added to 100g of 20% concentration of hydrogen oxidation In the sodium alkali solution, keep the temperature at 40°C for 12 hours. Cool down to room temperature, filter and squeeze, and take the filter residue for the next step of reaction. Take 5 g of the product filter residue and add it to 50 g of dimethyl sulfoxide, then add 2 g of chloroacetic acid and a small amount of catalyst, keep the temperature at 80 ° C for 10 hours, and obtain biomass after post-treatments such as solvent removal, neutralization, and drying base stabilizer.

[0028] The method for preparing vinyl acetate copolymer emulsion with the biomass stabilizer as raw material is applied: add 160 parts of deionized water to a four-necked flask equipped with a stirring rod, a thermometer and a condenser tube, stir and add 3-4...

Embodiment 2

[0030] Sorting, drying, crushing, grinding and sieving the agricultural and forestry residues, taking 20g after sorting, the particle size is 200 mesh, and the residue with a water content of 8% is added to 200g of sodium hydroxide with a concentration of 20%. In the ethanol solution of water, keep the temperature at 40° C. for 12 hours. Cool down to room temperature, filter and squeeze, and take the filter residue for the next step of reaction. Take 5 g of the product filter residue and add it to 50 g of ethanol, then continue to fill the reaction system with propylene oxide, keep the temperature at 50° C. for a certain period of time, and obtain a biomass-based stabilizer after post-treatment such as solvent removal.

[0031] The method for preparing vinyl acetate copolymer emulsion with the biomass stabilizer as raw material is applied: add 160 parts of deionized water to a four-necked flask equipped with a stirring rod, a thermometer and a condenser tube, stir and add 3-4 ...

Embodiment 3

[0033] Sorting, drying, crushing, grinding and sieving the agricultural and forestry residues, take 10g of residues after sorting, the particle size is 300 mesh, and the water content is 5% and added to 100g of sodium hydroxide with a concentration of 20%. In the water / ethanol solution, keep the temperature at 40°C for 12 hours. Cool down to room temperature, filter and squeeze, and take the filter residue for the next step of reaction. Take 5 g of the product filter residue and add it to 50 g of isopropanol, then fill it with ethylene oxide gas and a small amount of catalyst, keep the temperature at 40 ° C for a period of time, and obtain biomass after post-treatments such as solvent removal, neutralization, and drying base stabilizer.

[0034] The method for preparing vinyl acetate copolymer emulsion with the biomass stabilizer as raw material is applied: add 160 parts of deionized water to a four-necked flask equipped with a stirring rod, a thermometer and a condenser tube...

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PUM

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Abstract

The invention provides a method for preparing a biomass-based stabilizer with farming and forestry residues. The method comprises the following steps: 1) sorting, drying, crushing, grinding and sieving the farming and forestry residues; 2) adding farming and forestry residue powder to an alkali solution for alkalization reaction, heating to 30-50 DEG C, and then reacting at a solid-liquid ratio of1:10 for 12 hours to obtain an alkalization product; 3) cooling to room temperature, and then dissolving the alkalization product in an organic solvent; and 4) adding a functional agent and a catalyst, reacting at 50-80 DEG C, and removing a solvent to obtain the biomass-based stabilizer. The method has the advantages that the value of the farming and forestry residues is fully used, the production cost is reduced, and the environment pollution caused the by farming and forestry residues is effectively alleviated; and the biomass-based stabilizer has good stabilizing effect and can be widelyused for preparation of various reagents or solutions.

Description

technical field [0001] The invention relates to a method for preparing a biomass-based stabilizer by using agricultural and forestry residues, in particular to a method for preparing a biomass-based stabilizer applicable to stabilizing emulsions such as polyvinyl acetate, and belongs to the technical field of comprehensive utilization of agricultural and forestry residues. Background technique [0002] Cellulose is a renewable biomass resource. Because of its advantages of degradability and wide sources, people have used cellulose-based biomass materials effectively since ancient times. A large number of residues will be produced in agricultural and industrial production activities, most of which are simply treated as waste, not fully and effectively utilized, and pollute the environment while wasting resources. [0003] Cellulose is a polymer with glucose as its structural unit. A large number of hydroxyl groups in the structure make it form strong intramolecular and interm...

Claims

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Application Information

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IPC IPC(8): C08L31/04C08L1/08C08L97/02C08L99/00C08F218/08C08F220/18
CPCC08F218/08C08L31/04C08L1/08C08L97/02C08L99/00C08F220/1804
Inventor 谢阳志王玉贺磊胡玉安刘斌黄慧余能富王小东
Owner JIANGXI ACAD OF FORESTRY
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