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Epoxy acrylate modified polyether polyol and preparation method thereof

A technology of epoxy acrylate and polyether polyol, which is applied in the field of polyether polyol modification, can solve the problems of high brittleness and insufficient flexibility, and achieve the effects of good adhesion, low price and simple synthesis process

Pending Publication Date: 2022-04-26
SHANDONG INOV NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When used as a main resin, it has good adhesion, chemical resistance and strength, but it also has the disadvantages of insufficient flexibility and high brittleness after curing

Method used

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  • Epoxy acrylate modified polyether polyol and preparation method thereof
  • Epoxy acrylate modified polyether polyol and preparation method thereof
  • Epoxy acrylate modified polyether polyol and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Add 100g of epoxy resin E44 into the reaction kettle. After the leak test and replacement of the kettle, the temperature is raised to 85±5°C under nitrogen atmosphere, and then 15.5g of acrylic acid, 1.1g of triethylamine catalyst and hydroquinone are added dropwise within 1 hour. For a mixture of 0.15g of polymerization agent, control the reaction temperature at 100°C, and take samples to measure the acid value at the same time. After the dropwise addition, raise the temperature to 115±5°C and react for 1.5h, so that the acid value drops to less than 2mgKOH / g to stop the reaction.

[0030] After the internal pressure is completed, take 325g of sucrose and vacuum pump it into the reaction kettle. At the same time, add 80g of diethylene glycol, 2g of diethanolamine, 226g of palm oil, and 12g of triethylamine catalyst. Stir and cool down to 110°C. Propylene oxide, the mass is 581g, the temperature is kept at 112±2°C during the dropwise addition, and the pressure in the ket...

Embodiment 2

[0032] Add 100g of epoxy resin F51 (feed after heating) into the reaction kettle. After the leak test and replacement of the kettle, the temperature is raised to 85±5℃ under a nitrogen atmosphere, and then 33.4g of acrylic acid and N,N-dimethyl are added dropwise within 1 hour. Benzylamine catalyst 1.3g and p-methoxyphenol 0.2g inhibitor mixture, control the reaction temperature at 100°C, take a sample to measure the acid value at the same time, after the dropwise addition, raise the temperature to 115±5°C and react for 2h to reduce the acid value to less than 2mgKOH / g stops the reaction.

[0033] After the internal pressure is completed, 325g of sucrose is vacuum pumped into the reactor, and 165g of diethylene glycol, 3g of diethanolamine, and 12g of dimethylamine catalyst are sucked in at the same time, and the temperature is lowered to 110°C with stirring. After reaching the temperature, propylene oxide is added dropwise. In 859g, keep the temperature at 112±2°C during the...

Embodiment 3

[0035] Add 100g of epoxy resin E55 (feeding after heating) into the reaction kettle. After leak test and replacement of the kettle, the temperature is raised to 85±5°C under nitrogen atmosphere, and then 19.9g of methacrylic acid, N,N-di Mix 1.2g of methylbenzylamine catalyst and 0.17g of p-methoxyphenol as a polymerization inhibitor, control the reaction temperature at 100°C, and take samples to measure the acid value at the same time. Less than 2mgKOH / g to stop the reaction.

[0036] After the internal pressure is completed, 325g of sucrose is vacuum pumped into the reaction kettle, and 165g of diethylene glycol, 2.6g of diethanolamine, and 12g of dimethylamine catalyst are sucked in at the same time, and the temperature is lowered to 110°C with stirring. After reaching the temperature, propylene oxide is added dropwise. The mass is 850g, the temperature is kept at 112±2°C during the dropping process, and the pressure in the kettle is controlled within 0.2MPa. After the dro...

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Abstract

The invention relates to epoxy acrylate modified polyether polyol and a preparation method thereof, and belongs to the technical field of polyether polyol modification. The preparation method of the epoxy acrylate modified polyether polyol comprises the following steps: mixing an epoxy acrylate compound with a composite initiator, and reacting with an epoxy olefin compound under the action of a catalyst to prepare the polyether polyol. The epoxy acrylate modified polyether polyol disclosed by the invention has a relatively high hydroxyl value and relatively low viscosity, and polyurethane foam prepared from the epoxy acrylate modified polyether polyol has relatively high cohesiveness and strength; the invention also provides a simple and feasible preparation method.

Description

technical field [0001] The invention relates to an epoxy acrylate modified polyether polyol and a preparation method thereof, belonging to the technical field of polyether polyol modification. Background technique [0002] In the field of polyurethane foam application, especially in the field of spraying, the requirements for foam cohesion and strength are high when it is applied to the construction industry. The cohesion and strength brought by conventional polyether polyols are insufficient, resulting in the need for a large amount of interface agent in the construction process. And other additives to meet the construction requirements. The cured epoxy acrylate film has good adhesion, chemical resistance and strength, and the modification of the two has a significant impact on performance improvement. [0003] Epoxy acrylate resin is prepared by ring-opening esterification of epoxy resin and acrylic acid under the action of a catalyst, as follows: [0004] [0005] Ep...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G65/26
CPCC08G65/2615C08G65/2609C08G65/2624C08G65/2606C08G65/2696
Inventor 郭怀泉李晓芳邵家政程铸洪
Owner SHANDONG INOV NEW MATERIALS CO LTD
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