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Method for preparing environment-friendly modified carboxymethyl cellulose thermoplastic material

A technology of carboxymethyl cellulose and thermoplastic materials, applied in the field of preparation of ecological environment materials, can solve the problems such as the thermoplastic modification method of carboxymethyl cellulose and the lack of reports in the literature of thermoplastic materials, and achieve good processing performance , easy to use effect

Inactive Publication Date: 2010-09-15
SOUTHWEAT UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the prior art, there are many reports on the preparation of superabsorbent materials using carboxymethyl cellulose, but there are no reports on carboxymethyl cellulose thermoplastic modification methods and thermoplastic materials.

Method used

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  • Method for preparing environment-friendly modified carboxymethyl cellulose thermoplastic material
  • Method for preparing environment-friendly modified carboxymethyl cellulose thermoplastic material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A preparation method of an environmentally friendly modified carboxymethyl cellulose thermoplastic material, comprising the following steps:

[0031] Add 5 parts of sodium carboxymethylcellulose to 150 parts of solvent, control the temperature at 30°C, and swell for 1 hour; add 0.1 part of initiator to the swollen sodium carboxymethylcellulose, control the temperature at 40°C, and initiate the reaction The time is 0.1 hour; after initiating the reaction, add 50 parts of methyl acrylate, control the reaction temperature at 50°C, and the reaction time is 3 hours; cool the liquid after the reaction, add 150 parts of acetone, stir for 2 hours, and then let it stand for 5 hours before filtering. Wash the solid with water (preferably distilled water), and dry at 50° C. for 6 hours to obtain milky yellow thermoplastic carboxymethyl cellulose material (ie: modified carboxymethyl cellulose thermoplastic material).

Embodiment 2

[0033] A preparation method of an environmentally friendly modified carboxymethyl cellulose thermoplastic material, comprising the following steps:

[0034] Add 10 parts of sodium carboxymethylcellulose to 200 parts of solvent, control the temperature at 40°C, and swell for 2 hours; add 1 part of initiator to the swollen sodium carboxymethylcellulose, control the temperature at 50°C, and initiate the reaction The time is 0.2 hours; after initiating the reaction, add 100 parts of methyl acrylate, control the reaction temperature at 60°C, and the reaction time is 4 hours; cool the liquid after the reaction, add 150 parts of acetone, stir for 3 hours, and then let it stand for 6 hours before filtering. Wash the solid with water (preferably distilled water), and dry at 60° C. for 8 hours to obtain milky yellow thermoplastic carboxymethyl cellulose material (ie: modified carboxymethyl cellulose thermoplastic material).

Embodiment 3

[0036] A preparation method of an environmentally friendly modified carboxymethyl cellulose thermoplastic material, comprising the following steps:

[0037] Add 15 parts of sodium carboxymethyl cellulose to 300 parts of solvent, control the temperature at 45°C, and swell for 2.5 hours; add 2 parts of initiator to the swollen sodium carboxymethyl cellulose, control the temperature at 60°C, and initiate the reaction The time is 0.5 hours; add 150 parts of methyl acrylate after initiating the reaction, control the reaction temperature at 65°C, and the reaction time is 5 hours; cool the liquid after the reaction, add 200 parts of acetone, stir for 4 hours, and then let it stand for 6 hours before filtering. Wash the solid with water (preferably distilled water), and dry at 65° C. for 12 hours to obtain milky yellow thermoplastic carboxymethyl cellulose material (ie: modified carboxymethyl cellulose thermoplastic material).

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Abstract

The invention discloses a method for preparing an environment-friendly modified carboxymethylcellulose thermoplastic material. The method is characterized by comprising the following steps of: adding 1-50 parts by weight of carboxymethyl cellulose into 150-500 parts by weight of solvent water, swelling for 1-4 h at 30-60 DEG C, then adding 0.1-10 parts by weight of initiator, controlling the temperature at 40-85 DEG C, carrying out initiation reaction for 0.1-2 h, then adding 20-300 parts by weight of grafting monomer, reacting for 0.5-8 h at 40-85 DEG C; cooling the reacted materials, adding 150-300 parts by weight of acetone, stirring, standing for 5-10 h, filtering, washing a solid with water and drying the solid to obtain the modified carboxymethylcellulose thermoplastic material. The product can be processed and molded by using traditional extrusion molding, injection molding and blow molding methods. The thermoplastic material product is widely applied to the fields of petroleum drilling, mining engineering, textile industry, textile industry, coating material industry, daily chemical products, and the like.

Description

technical field [0001] The invention belongs to a preparation method of carboxy cellulose derivatives, relates to a preparation method of an environmentally friendly modified carboxymethyl cellulose thermoplastic material, and is a preparation method of an ecological environment material among new materials. The modified carboxymethyl cellulose thermoplastic material prepared by the method of the present invention can be processed and formed by traditional extrusion molding, injection molding, and blow molding methods for large-scale processing and production. Its thermoplastic material products are widely used in agriculture, materials, chemical industry, Packaging, environmental protection and other fields. Background technique [0002] In recent years, protecting the earth's ecology and reducing white pollution has become a topic of great concern and attention. With the depletion of non-renewable resources such as oil and natural gas, synthetic polymer materials using oi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F251/02
Inventor 林晓艳陈哲罗学刚罗小庆罗安凯
Owner SOUTHWEAT UNIV OF SCI & TECH
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