Fluorine-modified PAE resin, preparation method thereof and coating composition

A fluorine-modified and resin technology, applied in the field of fluorine-modified PAE resin and its preparation method and coating composition, can solve the problems of insufficient elasticity, high rigidity of the coating, easy cracking and the like

Pending Publication Date: 2021-05-18
浙江艾特普科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the product still has problems such as high rigidity of the coating, insufficient elasticity, and easy cracking when it is used, and the average elongation at break does not exceed 250%.

Method used

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  • Fluorine-modified PAE resin, preparation method thereof and coating composition
  • Fluorine-modified PAE resin, preparation method thereof and coating composition
  • Fluorine-modified PAE resin, preparation method thereof and coating composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] The fluorine-containing PAE resin of embodiment 1 organosilicon modification

[0040] A kind of organosilicon-modified fluorine-containing PAE resin, as shown in formula (I):

[0041]

[0042] R is perfluoroethyl, and X comes from 1,3-bis(3-aminopropyl)-1,1,3,3-tetramethyldisiloxane (also known as "amino dicaps").

[0043] The preparation method is as follows:

[0044] (1) Add the amino double head into the flask equipped with a water separator, add 20wt% xylene and heat up to reflux until dehydration, then vacuumize 0.6MPa to separate the xylene solvent;

[0045] (2) Cool down to 40-60°C, add dropwise the mixture of perfluorodiethyl maleate and acrylonitrile under the condition of nitrogen gas, wherein the mixture of amino double head and perfluorodiethyl maleate and acrylonitrile The molar ratio of the mixture is 1:2.1, and the molar ratio of perfluorodiethyl maleate to acrylonitrile is 10:0.8. Gradually raise the temperature to 60-65° C. at the end of the dropw...

Embodiment 2

[0046] The fluorine-containing PAE resin of embodiment 2 organosilicon modification

[0047] A kind of organosilicon-modified fluorine-containing PAE resin, identical with the general formula (I) of embodiment 1, R is a perfluoropropyl group, and its difference is: X comes from the amino-terminated silicone oil of molecular weight 400 (1,3-bis( 3-Aminopropyl)-1,1,3,3-Tetramethyldisiloxane reacts with octamethylcyclotetrasiloxane D4 (an amino-terminated silicone oil polymer with an average molecular weight of 400).

[0048] The preparation method is as follows:

[0049] (1) Add amino-terminated silicone oil into a flask equipped with a water separator, add 20wt% xylene and heat up to reflux until dehydration, and then vacuumize 0.6MPa to separate the xylene solvent;

[0050] (2) Cool down to 40-60°C, add dropwise the mixture of perfluorodipropyl maleate and acrylonitrile under the condition of nitrogen gas, in which the molecular weight is 400 terminal amino silicone oil and p...

Embodiment 3

[0051] The fluorine-containing PAE resin of embodiment 3 polyether amine modification

[0052]A polyetheramine-modified fluorine-containing PAE resin, the same as the general formula (I) of Example 1, R is a perfluoroethyl group, and the difference is that X comes from polyetheramine (D400, Huntsman, USA).

[0053] The preparation method is as follows:

[0054] (1) Add D400 in the flask equipped with a water separator, add 20wt% xylene and heat up to reflux until dehydration, then vacuumize 0.6MPa to separate the xylene solvent;

[0055] (2) Lower the temperature to 40-60°C, add the mixture of perfluorodipropyl maleate and acrylonitrile dropwise under the condition of blowing nitrogen gas, wherein, the mole of D400 and the mixture of perfluorodipropyl maleate and acrylonitrile The ratio is 1:2.1, and the molar ratio of perfluorodipropyl maleate to acrylonitrile is 10:0.9. When the dropwise reaction ends, the temperature is gradually raised to 60-65° C., and then maintained a...

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Abstract

The invention discloses a fluorine-modified PAE resin, a preparation method thereof and a coating composition, and the fluorine-modified PAE resin is prepared by the following steps: adding any one or more of polyether amine, amino-terminated silicon oil and polycaprolactone diamine into a reaction container, adding a solvent for reflux dehydration, and separating the solvent; then dropwise adding a mixture of fluorine-containing maleate and acrylonitrile under the condition of introducing nitrogen, and keeping the temperature after the dropwise adding end point to obtain the fluorine-modified PAE resin. The resin and the floor coating composition prepared from the resin have the characteristics of safety, comfort, silence, wear resistance and no solvent, the elasticity and strength of a floor are improved, and the floor is not easy to crack.

Description

technical field [0001] The invention relates to the field of polymers and polymer coatings, in particular to a fluorine-modified PAE resin, a preparation method thereof and a coating composition. Background technique [0002] A large amount of wear-resistant powder is generally added to the existing organic super wear-resistant floor, resulting in high rigidity of the floor, easy cracking, and poor foot comfort. Due to the addition of a large amount of inorganic fillers, it has poor chemical resistance and stain resistance. Long-term use of fillers is easy to cause dust. Poor weather resistance. [0003] Chinese patent CN109096132A (application date September 6, 2018) discloses a fluorine-containing polyaspartate resin and its synthesis method, based on the dual curing of polyaspartate, polyisocyanate and acrylate-containing compounds Coating composition, using trifluoroethanol, butenedioyl chloride and aliphatic diamine to synthesize trifluoroacetate PAE resin, the resin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G77/388C08G65/325C08G63/91C09D175/04
CPCC08G77/388C08G65/325C08G63/912C09D175/04
Inventor 赵军子卢鹏飞朱银邦姜山韩瑞生陈建军
Owner 浙江艾特普科技有限公司
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