Preparation method of bio-based modified amino polyol

A bio-based, polyol technology, applied in the field of bio-based, can solve the problems of large TDA residue, high VOC content, affecting life and health, etc., and achieve the effect of low VOC content, less residual toxic and harmful substances, and low hydroxyl value.

Inactive Publication Date: 2018-04-20
广州市友聚米新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, in the current many polyurethane flexible foam technology processes, petroleum-based soft foam polyether products are the main foaming raw materials, and there are harmful odors, high VOC content, and large TDA residues in the soft foam products that affect life and health. substance

Method used

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  • Preparation method of bio-based modified amino polyol
  • Preparation method of bio-based modified amino polyol
  • Preparation method of bio-based modified amino polyol

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Add 200g of monoethanolamine, 600g of epoxidized soybean oil, and 1.5g of potassium hydroxide into the stirring reaction device in sequence. Vacuum nitrogen replacement for 3 times, close the valve, turn on stirring, heat up to 120°C, react at a pressure of 0.1MPa for 12 hours, heat up to 125-130°C, vacuumize to a pressure of -0.096MPa, vacuumize, dehydrate and filter to obtain a bio-based modified amine base polyol I. Add 2.5g of 85% phosphoric acid to the bio-based modified amino polyol for neutralization reaction, then use 2g of refined magnesium silicate and 2g of aluminum silicate for adsorption, refinement, dehydration, decolorization, and vacuum dehydration and filtration to produce The refined bio-based modified amino polyol I was obtained.

Embodiment 2

[0027] Add 600g of epoxidized soybean oil and 1.8g of potassium hydroxide to the stirring reaction device in turn. Vacuum nitrogen replacement for 3 times, close the valve and stir to raise the temperature to 90°C, then slowly add 100g of dimethylamine and 20g of monomethylamine dropwise, and react for 12 hours under the condition of pressure less than or equal to 0.3MPa, when the reaction pressure is less than 0.1MPa, raise the temperature to 120-130°C, vacuumize to a pressure of -0.096MPa, vacuumize, dehydrate and filter to obtain bio-based modified amino-based polyol II. Add 2.2g of 85% phosphoric acid to the bio-based modified amino polyol for neutralization reaction, then use 1.8g of refined magnesium silicate and 1.8g of aluminum silicate for adsorption, refinement, dehydration, decolorization, and vacuum dehydration The refined bio-based modified amino polyol II was obtained by filtration.

Embodiment 3

[0029] Add 600g of epoxy linseed oil and 1.8g of potassium methylate into the stirring reaction device in sequence. Vacuum nitrogen replacement for 3 times, close the valve and stir to raise the temperature to 100°C, then slowly add 100g of ammonia water dropwise, and react for 18 hours under the condition of pressure less than or equal to 0.3MPa. Vacuum to a pressure of -0.096 MPa to obtain a bio-based modified amino polyol III by vacuum dehydration and filtration. Add 2.3g of 85% phosphoric acid to the bio-based modified amino polyol for neutralization reaction, then use 1.9g of refined magnesium silicate and 1.9g of aluminum silicate for adsorption, refinement, dehydration, decolorization, and vacuum dehydration The refined bio-based modified amino polyol III was obtained by filtration.

[0030] Each embodiment is prepared according to the following method: each raw material is put into the container by the portion given in Table 1 and stirred evenly (polyether polyol, cat...

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Abstract

The invention discloses a preparation method of bio-based modified amino polyol. The preparation steps include: reacting a nucleophilic reagent with an epoxy compound under the action of a catalyst and the conditions of 50-200DEG C and 0-1MPa for 4-24h, carrying out gradual dropwise adding reaction or mixing reaction, and performing vacuum pumping, dehydration and filtering to obtain bio-based modified amino polyol; and subjecting the bio-based modified amino polyol and a neutralizing refining agent to acid-base neutralization reaction, carrying out adsorption, refining, dehydration and decolorization, and conducting vacuum pumping, dehydration and filtering so as to obtain refined bio-based modified amino polyol. The preparation method of the bio-based modified amino polyol adopts the epoxy compound and nucleophilic reagent as the main raw materials for comprehensive modification, the prepared bio-based modified amino polyol has the characteristics of high amino activity, high degreeof functionality and low hydroxyl value, and the obtained flexible product has the characteristics of low odor, low VOC content, and little residue of toxic and harmful substances.

Description

technical field [0001] The invention relates to the field of bio-based technology, in particular to a preparation method of bio-based modified amino polyols. Background technique [0002] The polyurethane industry originated in Germany, and has developed rapidly in Europe, the United States, and Japan for more than half a century, and has reached an industrial scale of tens of millions of tons. As the low-carbon lifestyle is more and more accepted by people, China's polyurethane soft foam has huge room for development in the fields of automotive high-resilience sponges, sofas, seat cushions, mattresses, etc. China has become and will remain the world's largest One of the largest polyurethane flexible foam markets. [0003] With the increase of petroleum consumption, human beings are facing the increasing shortage of petroleum resources and the rising price of crude oil. The production of biological materials, chemical raw materials and fuels with renewable resources has att...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D301/00C07D303/40C08G18/36C08G18/48C08G18/66C08G101/00
CPCC07D301/00C07D303/40C08G18/36C08G18/4804C08G18/6696C08G2101/00
Inventor 李志生
Owner 广州市友聚米新材料有限公司
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