A kind of UV light curing fluorosilicone release agent and preparation method thereof

A light-curing agent and light-curing technology, applied in coatings and other directions, can solve problems such as expensive catalysts and high-temperature curing, and achieve excellent release properties and energy-saving applicability

Active Publication Date: 2020-06-16
安庆龙驰氟硅新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The UV photocurable fluorosilicone release agent of the present invention has a simple preparation method and can solve the problems of high temperature curing and expensive catalysts

Method used

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  • A kind of UV light curing fluorosilicone release agent and preparation method thereof
  • A kind of UV light curing fluorosilicone release agent and preparation method thereof
  • A kind of UV light curing fluorosilicone release agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Pentamethyl perfluorooctyl cyclotrisiloxane 10mol, octamethylcyclotetrasiloxane 40mol, glycidyl ether propyl heptamethylcyclotetrasiloxane 5mol, glycidyl ether propyl tetramethyldisiloxane Add 0.2 mol of oxane into the reaction kettle, depressurize, feed nitrogen, dehydrate at 50°C at a constant temperature, then raise the temperature to 75°C, add 0.1mol of trifluorosulfonic acid, react for 10 hours, add alkali to neutralize the catalyst, and then raise the temperature After removing low-boiling silicone oil at 150°C, cool and filter to obtain a colorless and transparent UV-curable fluorosilicone release agent. Infrared spectrum such as figure 1 As shown, the structural formula is as follows:

[0034]

[0035] The prepared UV photocurable fluorosilicone release agent and HPF 6 After mixing evenly, it is coated on a PET film and cured by UV light to obtain a release coating. Its performance test is as follows:

[0036] Table 1. Contact angle and surface energy tes...

Embodiment 2

[0042] Pentamethylperfluoroether trisiloxane 30mol, short chain fluorosilicone oil 10mol, octamethylcyclotetrasiloxane 10mol, glycidyl ether propyl hexamethylcyclotetrasiloxane 10mol, glycidyl ether propyl tetramethicone Add 0.1mol into the reaction kettle, depressurize to 0.09MPa, pass in nitrogen, dehydrate at a constant temperature of 50°C, then raise the temperature to 120°C, add 0.1mol KOH, react for 10h, add acid to neutralize the catalyst, and raise the temperature to 200°C After removing low-boiling silicone oil at ℃, cool and filter to obtain colorless and transparent fluorosilicone.

[0043] The prepared fluorosilicone and HPF 6 After mixing evenly, it is coated on a PET film and cured by UV light to obtain a release coating. Its performance test is as follows:

[0044] Table 3. Contact angle and surface energy tests

[0045] water Diiodomethane Contact Angle / Surface Energy 120° 89°

[0046] Table 4. Release performance and heat resi...

Embodiment 3

[0050] Pentamethylperfluorooctylcyclotrisiloxane 60mol, short-chain fluorosilicone oil 40mol, 20mol of glycidyl ether propyl heptamethylcyclotetrasiloxane, 5mol of glycidyl ether propyl tetramethyldisiloxane were added to the reaction kettle, depressurized, nitrogen gas was introduced, and dehydration was carried out at a constant temperature of 50°C , then heat up to 75°C, add 0.01mol trifluorosulfonic acid, react for 10h, add alkali to neutralize the catalyst, heat up to 150°C to remove low-boiling point silicone oil, cool and filter to obtain a colorless and transparent UV light-curable fluorosilicone release agent .

[0051] The prepared UV photocurable fluorosilicone release agent and HPF 6 After mixing evenly, it is coated on a PET film and cured by UV light to obtain a release coating. Its performance test is as follows:

[0052] Table 5. Contact angle and surface energy tests

[0053] water Diiodomethane Contact Angle / Surface Energy 118° 88° ...

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Abstract

The invention discloses a UV (Ultraviolet) curing fluorine-silicon release agent and a preparation method thereof. The structure of the UV curing fluorine-silicon release agent disclosed by the invention is shown as follows, wherein R1 is CnH2n+1, and n is equal to 1-9; R2 is one of the structural formulas as shown in the specification; R3 is C2H4CnF2nC2h4, and n is equal to 1-9; R4 is C2H4Rf, and Rf is desflurane group or perfluoroalkyl; and x is equal to 1-5000, y is equal to 1-5000, z is equal to 0-5000, and w is equal to 1-5000. According to the UV curing fluorine-silicon release agent disclosed by the invention, the preparation method is simple, and the problems such as high-temperature curing and cheap catalysts can be solved. The structural formula is as shown in the specification.

Description

technical field [0001] The invention relates to the field of polymer material preparation, in particular to a UV photocurable fluorosilicon release agent and a preparation method thereof. Background technique [0002] The release agent is a coating that has a separation effect on the surface and does not have adhesion or has slight adhesion when in contact with a specific material under certain conditions. At present, polysiloxane is the largest release agent in the market. However, silicone release agents have a significant release effect on silicone adhesives. After the introduction of fluorine groups, the release effect of the release agent can be greatly improved by utilizing the incompatibility between fluorine and silicon. Therefore, fluorosilicone release agent is a release coating used to protect the surface of special adhesives (especially high temperature resistant adhesives, silicone adhesives), and is also used for process protection of silicone rubber. [000...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G77/24C08G77/08C08G77/44C09D183/08C09D183/10C09D5/20C08J7/04C08L67/02
CPCC08G77/08C08G77/24C08G77/44C08J7/0427C08J2367/02C08J2483/08C09D5/20C09D183/08C09D183/10
Inventor 王宇白永平郑晓强韩佰洋白杨李卫东席丹殷晓芬
Owner 安庆龙驰氟硅新材料有限公司
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