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Preparation method of ring-opening epoxidized soybean oil modified sulfonated waterborne polyurethane

A technology of epoxidized soybean oil and water-based polyurethane, which is applied in the direction of carboxylate preparation, organic compound preparation, chemical instruments and methods, etc., can solve the problems of poor water resistance and heat resistance of water-based polyurethane, and achieve excellent flexibility and Tensile properties, improvement of water resistance and heat resistance, effects of relieving environmental stress

Active Publication Date: 2016-06-29
KUSN ZHANGPU COLOR PRINTING FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the introduction of hydrophilic groups, waterborne polyurethane has the defects of poor water resistance and heat resistance.

Method used

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  • Preparation method of ring-opening epoxidized soybean oil modified sulfonated waterborne polyurethane

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Embodiment 1: A kind of preparation method of ring-opening epoxy soybean oil modified sulfonic acid type waterborne polyurethane

[0031] The preparation method is sequentially composed of two parts: the preparation of the first part of ring-opening epoxy soybean oil and the second part of the synthesis of sulfonic acid type waterborne polyurethane;

[0032] The preparation of described first part ring-opening epoxy soybean oil comprises the following steps:

[0033] (1) Add 60g of epoxidized soybean oil and 79g of isooctyl alcohol into the first reaction kettle, stir to mix them well, then slowly add 0.48g of catalyst fluoboric acid into the first reaction kettle, and react at 100°C for 2h ; Wherein, the epoxy group mass percentage content of epoxy soybean oil is 6.1% of epoxy soybean oil quality;

[0034] (2) After the reaction is over, move it to a separatory funnel, add ethyl acetate to the feed liquid to dissolve, add water to wash until neutral; then use a rotary...

Embodiment 2

[0042] Embodiment 2: A kind of preparation method of ring-opening epoxy soybean oil modified sulfonic acid type waterborne polyurethane

[0043]The preparation method is sequentially composed of two parts: the preparation of the first part of ring-opening epoxy soybean oil and the second part of the synthesis of sulfonic acid type waterborne polyurethane;

[0044] The preparation of described first part ring-opening epoxy soybean oil comprises the following steps:

[0045] (1) Add 60g of epoxidized soybean oil and 79g of isooctyl alcohol into the first reaction kettle, stir to mix them well, then slowly add 0.48g of catalyst fluoboric acid into the first reaction kettle, and react at 100°C for 2h ; Wherein, the epoxy group mass percentage content of epoxy soybean oil is 6.1% of epoxy soybean oil quality;

[0046] (2) After the reaction is over, move it to a separatory funnel, add ethyl acetate to the feed liquid to dissolve, add water to wash until neutral; then use a rotary ...

Embodiment 3

[0054] Example 3: A preparation method of ring-opening epoxy soybean oil modified sulfonic acid type waterborne polyurethane

[0055] The preparation method is sequentially composed of two parts: the preparation of the first part of ring-opening epoxy soybean oil and the second part of the synthesis of sulfonic acid type waterborne polyurethane;

[0056] The preparation of described first part ring-opening epoxy soybean oil comprises the following steps:

[0057] (1) Add 60g of epoxidized soybean oil and 79g of isooctyl alcohol into the first reaction kettle, stir to mix them well, then slowly add 0.48g of catalyst fluoboric acid into the first reaction kettle, and react at 100°C for 2h ; Wherein, the epoxy group mass percentage content of epoxy soybean oil is 6.1% of epoxy soybean oil quality;

[0058] (2) After the reaction is over, move it to a separatory funnel, add ethyl acetate to the feed liquid to dissolve, add water to wash until neutral; then use a rotary evaporator...

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Abstract

A preparation method of ring-opening epoxidized soybean oil modified sulfonated waterborne polyurethane is characterized by comprising a first part, namely, preparation of ring-opening epoxidized soybean oil and a second part, namely, synthesis of sulfonated waterborne polyurethane, wherein the first part comprises steps as follows: epoxidized soybean oil and isooctyl alcohol are added to a first reaction kettle, a catalyst is added, and the ring-opening epoxidized soybean oil is obtained; the second part comprises steps as follows: polyatomic alcohol, the ring-opening epoxidized soybean oil and polyisocyanate are added to a second reaction kettle; stannous octoate is added for catalysis; a chain extender is added for a chain extension reaction; the temperature is reduced, and aliphatic diamine sulphonate is added; ethylenediamine is added for a chain extension reaction, and a ring-opening epoxidized soybean oil modified sulfonated waterborne polyurethane emulsion is obtained. The bio-based raw material epoxidized soybean oil is used for modifying the sulfonated waterborne polyurethane, and the water resistance and the heat resistance of sulfonated waterborne polyurethane are improved; besides, renewable resources are used to replace a petroleum raw material, and a cheap raw material source is provided for the polyurethane industry.

Description

technical field [0001] The invention relates to the technical field of water-based polyurethane emulsion, in particular to a preparation method of ring-opening epoxy soybean oil modified sulfonic acid-type water-based polyurethane. Background technique [0002] Polyurethane is a multifunctional polymer material with various raw materials, adjustable molecular structure, high bond strength, excellent impact resistance, low temperature resistance and friction resistance, etc. It is widely used in coatings, adhesives, etc. agent, leather finishing agent, ink and other fields. Generally, solvent-based polyurethane is polymerized with acetone, methyl ethyl ketone, ethyl acetate, etc. as the main solvents. These solvents are flammable and dangerous chemicals. Therefore, in the process of production and use, it not only pollutes the environment, but also does great harm to people's health. With the advancement of science, technology and society, people's awareness of environmenta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/75C08G18/76C08G18/66C08G18/42C08G18/36C08G18/32C07C67/31C07C69/675
CPCC07C67/31C08G18/4238C08G18/4277C08G18/6651C08G18/6662C08G18/755C08G18/7671C07C69/675
Inventor 唐敏艳夏瑜包燕敏俞晓琴
Owner KUSN ZHANGPU COLOR PRINTING FACTORY
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