Method for preparing oil absorption material from cellulose and alkyl acrylate by graft copolymerization

A technology of alkyl acrylate and oil-absorbing materials, applied in chemical instruments and methods, and other chemical processes, can solve problems such as endangering human health, endangering aquatic organisms, and affecting workplaces, achieving high oil-absorbing performance and solving high oil-absorbing properties and biodegradability effects

Inactive Publication Date: 2009-10-28
XINJIANG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Various oils as industrial blood will affect the workplace and pollute the ecological environment due to dripping, leaking, splashing, etc. during transportation, replacement, and use; in oil extraction, oil refining, petrochemical, and food industries A large amount of oily waste water will be produced in the production process of the production process and the lubricating oil cooling process of the mechanical industry, which will pollute the water environment, endanger aquatic organisms, and even enter the human body through the food chain, endangering human health; there will also be a large amount of oil fume in the catering industry and daily life Air pollutes the atmosphere; washing kitchen utensils in daily life, a large amount of waste water containing edible oil flows into the sewer without any treatment, and after a long time, it will corrode and block the sewer pipes, which will bring a lot of inconvenience to people's lives. Excellent oil absorbing material

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] a. Crush 5.0 g of waste cotton cellulose from pulp mills with a degree of polymerization of 150 into lumps, put it in a 250 ml activation bottle, add 125 ml of nitric acid aqueous solution with a molar concentration of 0.1 M / L, and recirculate and stir at 25°C for activation Stop after 2 hours, remove excess pretreatment solution, wash away residual cerium ions with distilled water to pH = 7.0, and vacuum filter for later use;

[0021] b. Put the waste cellulose treated in step a into 75ml of nitric acid aqueous solution with a molar concentration of 0.2M / L, add 0.125g of copper flakes to inhibit the formation of homopolymers, and add 20ml of methacrylic acid under nitrogen protection and stirring Butyl ester reaction monomer, add 0.06g 1,4-butanediol diacrylate crosslinking agent, heat up to 45°C under stirring, stop after 7 hours of constant temperature reaction, precipitate the product and filter, wash with water and ethanol three times respectively , drying at a tem...

Embodiment 2

[0030] a. 5.0 g of wood pulp with a degree of polymerization of 1500 is pulverized into blocks, placed in a 250 ml activation bottle, and 100 ml of aqueous nitric acid solution with a molar concentration of 0.35 M / L is added, and the activation is stopped after reflux stirring at 25° C. for 3 hours, Remove excess pretreatment liquid, wash off residual cerium ions with distilled water to pH = 7.0, vacuum filter and set aside;

[0031] b. Put the wood pulp cellulose processed in step a into 75 ml of nitric acid aqueous solution with a molar concentration of 0.45 M / L, add 0.125 g of copper flakes to inhibit the formation of homopolymers, add 6 g of formazan under nitrogen protection and stirring Lauryl acrylate reaction monomer, add 0.22g ethylene glycol diacrylate crosslinking agent, heat up to 75°C under stirring, stop after 6 hours of constant temperature reaction, precipitate the product and filter, wash with water and ethanol three times respectively , drying at a temperatur...

Embodiment 3

[0040] a. 5.0 g of cotton pulp with a degree of polymerization of 576 is crushed into lumps, placed in a 250 ml activation bottle, and 70 ml of aqueous nitric acid solution with a molar concentration of 0.25 M / L is added, and the activation is stopped after reflux at 25° C. for 2.5 hours, Remove excess pretreatment liquid, wash off residual cerium ions with distilled water to pH = 7.0, vacuum filter and set aside;

[0041] b. Put the cotton pulp cellulose processed in step a into 50ml of nitric acid aqueous solution with a molar concentration of 0.30M / L, add 0.125g of copper flakes to inhibit the formation of homopolymers, and add 15ml of methacrylic acid under nitrogen protection and stirring Butyl ester reaction monomer, add 1.5ml octyl acrylate and 0.16g diallyl phthalate crosslinking agent, heat up to 75°C under stirring, stop after 5 hours of constant temperature reaction, precipitate the product and filter it, water and ethanol respectively Each was washed 3 times, and d...

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Abstract

The invention relates to a method for preparing oil absorption material from cellulose and alkyl acrylate by graft copolymerization, which includes the steps of: pulverizing plant cellulose raw material into massive material for placing into nitric acid aqueous solution containing cerium ionic initiator, stirring, removing excess pretreatment fluid, washing residual cerium ion by distilled water to pH=7.0, after vacuum filtration placing the material into the nitric acid aqueous solution, adding copper sheet for inhibiting forming of homopolymer, adding reaction monomer and cross linker with nitrogen protection and stirring, heating with stirring, remaining constant temperature, precipitating and filtering product, washing with water and ethanol respectively, drying, and then obtaining the cellulose-based oil absorption material. The method has the advantages of: simple operation, moderate reaction condition, plant cellulose basic raw material, high oil-absorption ability for vegetable oil and heavy oil with larger viscosity. The product not only has biodegradability of cellulose, but also has high oil-absorption ability of lipophilic monomer, thereby solving the difficult problem that common oil-absorption materials cannot have high oil-absorption ability and biodegradability at the same time.

Description

technical field [0001] The invention relates to a method for preparing an oil-absorbing material by graft-copolymerizing cellulose with alkyl acrylate after being initiated by cerium ions. technical background [0002] Various oils as industrial blood will affect the workplace and pollute the ecological environment due to dripping, leaking, splashing, etc. during transportation, replacement, and use; in oil extraction, oil refining, petrochemical, and food industries A large amount of oily waste water will be produced in the production process of the production process and the lubricating oil cooling process of the mechanical industry, which will pollute the water environment, endanger aquatic organisms, and even enter the human body through the food chain, endangering human health; there will also be a large amount of oil fume in the catering industry and daily life Air pollutes the atmosphere; washing kitchen utensils in daily life, a large amount of waste water containing...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F251/02C08F2/18C09K3/32
Inventor 哈丽丹·买买提
Owner XINJIANG UNIVERSITY
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