Method for preparing acrylate-modified waterborne polyurethane from soybean oil polyalcohol

A technology of soybean oil polyol and water-based polyurethane, which is applied in the field of polymer materials, can solve the problems of not meeting the sustainable development of green chemical industry, and the products are not easy to degrade, and achieve the effects of low brittleness, low odor and high degree of branching

Inactive Publication Date: 2016-11-09
HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The polyurethane in the traditional acrylate-modified waterborne polyurethane is obtained from petroleum products, which is a non-renewable product and does not meet the requirements of sustainable development of green chemical industry, and the obtained product is not easy to degrade

Method used

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  • Method for preparing acrylate-modified waterborne polyurethane from soybean oil polyalcohol

Examples

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Effect test

Embodiment 1

[0022] (1) Synthesis of halogenated soybean oil polyols: add 40g of hydrochloric acid and 150ml of acetone into a 500ml flask and mix; at 45°C, add 60.2g of epoxy soybean oil dropwise into the flask and stir for 15 minutes ; The mixture was stirred and reacted at 40°C for 2 hours; then, 150ml of ethyl acetate and 100ml of deionized water were added to separate the layers, and the layered organic layer was washed with sodium bicarbonate solution until the pH was 8, and then, The washed organic layer was dried with magnesium sulfate and filtered, and the solvent was distilled off under reduced pressure to obtain a yellow viscous liquid halogenated soybean oil polyol; the hydroxyl value of the obtained halogenated soybean oil polyol was 137.78 mgKOH / g, and the acid value was 7.5 mgKOH / g. g.

[0023] (2) Synthesis of acrylic epoxidized soybean oil AESO: 120g epoxidized soybean oil and 0.226g inhibitor nitroxide radical piperidinol 4-OH-TEMPO were added to a 500ml three-necked flas...

Embodiment 2

[0027] (1) Synthesis of halogenated soybean oil polyols: add 40g of hydrochloric acid and 150ml of acetone into a 500ml flask and mix; at 45°C, add 63.0g of epoxy soybean oil dropwise into the flask and stir for 15 minutes The mixture was stirred and reacted at 40°C for 4 hours; then, 150ml of ethyl acetate and 100ml of deionized water were added, and the layers were separated, and the layered organic layer was washed with sodium bicarbonate solution until the pH was 7, and then, The washed organic layer was dried with magnesium sulfate and filtered, and the solvent was distilled off under reduced pressure to obtain a yellow viscous liquid halogenated soybean oil polyol; the hydroxyl value of the obtained halogenated soybean oil polyol was 133.63 mgKOH / g, and the acid value was 7.8 mgKOH / g g.

[0028](2) Synthesis of acrylic epoxidized soybean oil AESO: Add 120g of epoxidized soybean oil and 0.223g of inhibitor nitroxide radical piperidinol 4-OH-TEMPO into a 500ml three-necked...

Embodiment 3

[0032] (1) Synthesis of halogenated soybean oil polyols: add 40g of hydrochloric acid and 150ml of acetone into a 500ml flask and mix; at 45°C, add 63.1g of epoxy soybean oil dropwise into the flask and stir for 15 minutes ; The mixture was stirred and reacted at 40°C for 3 hours; then, 150ml of ethyl acetate and 100ml of deionized water were added to separate the layers, and the layered organic layer was washed with sodium bicarbonate solution until the pH was 8, and then, The washed organic layer was dried with magnesium sulfate and filtered, and the solvent was distilled off under reduced pressure to obtain a yellow viscous liquid halogenated soybean oil polyol; the hydroxyl value of the obtained halogenated soybean oil polyol was 129.6 mgKOH / g, and the acid value was 6.8 mgKOH / g. g.

[0033] (2) Synthesis of acrylic epoxy soybean oil AESO: Add 120g of epoxy soybean oil and 0.224g of polymerization inhibitor nitroxide free radical piperidinol 4-OH-TEMPO into a 500ml three-n...

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Abstract

The invention relates to a method for preparing acrylate-modified waterborne polyurethane from soybean oil polyalcohol. The method for preparing acrylate-modified waterborne polyurethane from soybean oil polyalcohol specifically comprises the steps that two kinds of soybean oil polyalcohol are mixed according to different proportions, and then the mixture and isocyanate are subjected to gradual addition polymerization to obtain waterborne polyurethane; waterborne polyurethane and an acrylate monomer are subjected to graft copolymerization to obtain acrylate-modified waterborne polyurethane. According to the method, acrylate-modified waterborne polyurethane is synthesized by taking renewable vegetable oil as a raw material, and acrylate-modified waterborne polyurethane is green, environmentally friendly and biodegradable. The prepared material is high in heat resistance, low in brittleness, high in transparency and scraping resistance, full in brightness and high in impact resistance and adhesion.

Description

technical field [0001] The invention relates to a method for preparing acrylic acid-modified waterborne polyurethane from soybean oil polyol, and belongs to the technical field of polymer materials. Background technique [0002] Polyurethane is obtained through the stepwise polyaddition reaction between diisocyanate and polyol. Because of its excellent wear resistance, toughness, and chemical corrosion resistance, it is widely used in coatings, adhesives, sealants, foams, etc. . At present, the polyols required for the synthesis of polyurethane are mostly obtained from petroleum products. However, with the dwindling of oil reserves and the advancement of sustainable development strategies, people began to look for renewable resources to replace oil. Vegetable oil, as a naturally available and biodegradable resource, is a popular choice for synthetic polyurethanes to replace petroleum-based products. [0003] Waterborne polyurethane is the most rapidly and active branch of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F283/00C08F220/14C08F220/18C08G18/75C08G18/67C08G18/36C08G18/34
CPCC08F283/008C08G18/348C08G18/36C08G18/675C08G18/755C08F220/1804
Inventor 刘洪杰陆文超邢山川张思思贾芳刘少杰
Owner HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY
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