Modified polyurethane acrylic resin and preparation method thereof

A polyurethane acrylic and acrylic technology, applied in the direction of adhesive additives, non-polymer adhesive additives, etc., can solve the problems of water resistance, poor impact resistance, poor weather resistance, yellowing resistance, poor durability, etc., to achieve weather resistance. The effect of improved performance, good impact resistance and high water resistance

Inactive Publication Date: 2017-11-17
深圳市百丽春粘胶实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] (1) Easy to age, poor weather resistance and yellowing resistance;
[00

Method used

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  • Modified polyurethane acrylic resin and preparation method thereof
  • Modified polyurethane acrylic resin and preparation method thereof
  • Modified polyurethane acrylic resin and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0055] Example 1:

[0056] A method for preparing modified polyurethane acrylic resin, comprising the following steps:

[0057] 1) 13.3 grams of isophorone diisocyanate, 0.08 grams of hydroquinone and 0.04 grams of stannous octoate were added to the reactor, heated to 60°C and stirred evenly;

[0058] 2) Add 8 grams of 4,4'-(1-methylene)-bicyclohexanol, heat to 70°C and stir evenly until the isocyanate mass percentage is 11.9±0.05%;

[0059] 3) Add 0.05 gram of antioxidant 1135, .02 gram of Tinuvin517 and 6.7 gram of acrylic acid-β-hydroxypropyl ester in turn, and heat to 80° C. to stir and react completely;

[0060] 4) Add 33.3 grams of polyester diol with hydroxyl value of 56 (model is Daicel Placcel 220), continue to react for 4 hours at a temperature of 80 ° C, until the NCO group content in the sample tracking test system is taken out, when it is When the mass percentage is less than 0.05%, the reaction reaches the end point;

[0061] 5) Add 27.1 grams of tetrahydrofuran...

Example Embodiment

[0062] Example 2:

[0063] 1) 9 grams of hexamethylene diisocyanate, 0.1 grams of p-hydroxyanisole and 0.04 grams of 0.08 grams of dibutyltin dilaurate were added to the reactor, heated to 60°C and stirred evenly;

[0064] 2) Add 8 grams of 4,4'-(1-methylethylene)-bicyclohexanol, heat to 70°C and stir evenly, until the detected isocyanate mass percentage is 13.5±0.05%;

[0065] 3) Add 0.05 gram of Irganox5057, 0.03 gram of Tinuvin328 and 4 gram of methacrylic acid-β-hydroxyethyl ester successively, and heat to 80° C. to stir and react completely;

[0066] 4) Add 26 grams of polyester diol with a hydroxyl value of 56 (the model is Daicel Placcel CD220PL), and continue to react for 4 hours at a temperature of 80 ° C until the sample is taken out to track the NCO group content in the test system. When the mass percentage is less than 0.05%, the reaction reaches the end point;

[0067] 5) Add 17.7 grams of isobornyl acrylate and 21.2 grams of isodecyl acrylate to reduce viscosit...

Example Embodiment

[0068] Example 3:

[0069] 1) 15.3 grams of isophorone diisocyanate, 0.07 grams of p-tert-butylcatechol and 0.06 grams of dibutyltin dilaurate were added to the reactor, heated to 68°C and stirred evenly;

[0070] 2) Add 8 grams of 4,4'-(1-methylene)-bicyclohexanol, heat to 70°C and stir evenly until the isocyanate mass percentage is 12.2±0.05% and the reaction is complete;

[0071] 3) Add 0.05 g of 2,6-di-tert-butyl-p-cresol, 0.02 g of Tinuvin 213 and 6 g of acrylic acid-β-hydroxypropyl ester in turn, heat to 70° C. to stir and react for 3 hours;

[0072] 4) Add 20 grams of polyester diol with a hydroxyl value of 112 (the model is Daicel Placcel 210), and continue the reaction at a temperature of 80 ° C until the sample is taken out to track the NCO group content in the test system. When the fractional content is less than 0.05%, the reaction reaches the end point;

[0073] 5) Add 20.4 grams of isodecyl acrylate and 16.3 grams of neopentyl glycol diacrylate to reduce viscos...

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Abstract

The invention discloses a modified polyurethane acrylic resin, which is prepared by polymerization among hydroxyl acrylate, diisocyanate, alkylated 4,4'-dicyclohexanol, and polyester/polyether glycol. The invention provides a method of preparing the modified polyurethane acrylic resin at the same time. The provided modified polyurethane acrylic resin does not contain active functional group such as phenyl ring, amino group, or the like, so the modified polyurethane acrylic resin will not become yellow even if the modified polyurethane acrylic resin is irradiated by light, and the weatherability is good. The resin can be applied to an adhesive, and has a good waterproof performance, good anti-falling performance, good drug resistant property, and excellent thermal stability.

Description

technical field [0001] The invention relates to a high molecular polymer and a synthesis method thereof, in particular to a modified polyurethane acrylic resin and a preparation method thereof. Background technique [0002] At present, with the continuous expansion of the application field of UV curing technology, the market has put forward various requirements for light-curing adhesives. In order to improve the bonding strength, heat resistance, water resistance, yellowing resistance, drop resistance and chemical resistance of UV-curable adhesives, the performance of polyurethane acrylate prepolymer as one of the main components is very important. To a certain extent, it determines whether the light-curing adhesive can meet certain basic requirements. Due to its high synthesis flexibility and excellent comprehensive performance, polyurethane acrylate has been widely used in the fields of photocurable coatings, inks, and adhesives. [0003] Urethane acrylate is an importan...

Claims

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Application Information

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IPC IPC(8): C09J175/14C09J11/04C09J11/06C08G18/75C08G18/73C08G18/32C08G18/48C08G18/42C08G18/12C08G18/67C08G18/66
Inventor 潘自鼎叶明浩
Owner 深圳市百丽春粘胶实业有限公司
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