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A kind of fluorosilicone release agent resin, emulsion type fluorosilicone release agent and preparation method thereof

A release agent, fluorosilicon technology, applied in the field of organic materials, can solve the problems of increased equipment cost, environmental pollution, increased safety risks, etc., and achieves the effects of excellent high temperature resistance, low VOC content and low viscosity

Active Publication Date: 2020-07-17
ANHUI MINGXUN NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The currently reported fluorosilicone release agents generally need to be diluted with organic solvents, and some even require special fluorine-containing solvents. Although the use of solvents improves the coating process, it will inevitably cause environmental pollution. Increase the safety risk during transportation and use, and at the same time, it is necessary to add a solvent recovery device in the coating process, which increases the cost of equipment
Relatively speaking, the emulsion-type release agent does not have the above problems, but the emulsion-type fluorosilicone release agent has not been reported yet.

Method used

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  • A kind of fluorosilicone release agent resin, emulsion type fluorosilicone release agent and preparation method thereof
  • A kind of fluorosilicone release agent resin, emulsion type fluorosilicone release agent and preparation method thereof
  • A kind of fluorosilicone release agent resin, emulsion type fluorosilicone release agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Put 100g of fluorine-containing prepolymer, 20g of functional monomer 1, 10g of functional monomer 2 and 300ml of toluene in a three-necked flask equipped with mechanical stirring, condensing reflux, thermometer and oil bath heating, and add 1g of KOH as a catalyst , the temperature of the oil bath was controlled at 110°C for 6 hours, then 1.5 g of methyl divinyl siloxane was added as an end-capping agent, and the temperature was continued for 1 hour, and then the solvent toluene was recovered by distillation under reduced pressure to obtain a fluorosilicone release agent resin.

[0038] Among them, the fluorine-containing prepolymer is selected

[0039]

[0040] Functional monomer 1 selection

[0041]

[0042] Functional monomer 2 selection

[0043]

[0044]Oil bath temperature is down to 60 ℃, then the compound emulsifier of 30g (wherein the mass ratio of nonionic surfactant, silicon-containing surfactant and fluorosurfactant is 80:20:5, nonionic surfactant ...

Embodiment 2

[0047] On the basis of Example 1, selecting R1'-1 (m=1) as the functional group of functional monomer 1 can significantly improve the heat resistance of the release agent. Wherein the structure of functional monomer 1 is as follows:

[0048]

Embodiment 3

[0050] On the basis of Example 1, R3'-2 (m=1) is selected as the functional group of the functional monomer 2, which can give the release agent the properties of UV light curing. Wherein the structure of functional monomer 2 is as follows:

[0051]

[0052] For specific use, it can be evenly coated on the substrate, dried at 80°C for 5 minutes, dried at 120°C for 5 minutes, and then treated with ultraviolet light for 30 minutes, which can significantly improve the hardness and adhesion of the coating film. The UV light measured by 7475 adhesive tape After curing, the release force is further reduced, and the measured value can reach 5.6g.

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PUM

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Abstract

The invention discloses fluorine-silicon release agent resin, a novel emulsion type fluorine-silicon release agent and a preparation method thereof. The preparation method includes two steps: step 1, synthesizing the fluorine-silicon release agent resin: subjecting fluorine-containing monomer, functional monomer 1 and functional monomer 2 to ion polymerization under catalytic action of acid or alkali to obtain the fluorine-silicon release agent resin; step 2, adding a compound emulsifying system into the fluorine-silicon release agent resin, and adopting a phase inversion emulsifying method for emulsifying: well mixing the fluorine-silicon release agent resin with the compound emulsifying system, and dropwise adding deionized water, adopting a high-shearing-rate disperser for stirring to finally obtain a fluorine-silicon release agent emulsion.

Description

technical field [0001] The invention relates to the field of organic materials, in particular to a fluorosilicon release agent resin, a novel emulsion-type fluorosilicon release agent and a preparation method thereof. Background technique [0002] The role of the release agent is to form a stable film on the surface of the material, thereby reducing the peeling force on the surface of the material. The commonly used release agents can be roughly divided into silicone, fluorine and UV light curing. Among them, silicone The release agent is widely used and the cost is low, and it can be applied to most occasions. However, for special fields that require ultra-light peeling force, fluorine-based release agents must be used. Fluorine-based release agents have light peeling force and chemical With many advantages such as high stability and less silicon transfer, it can meet the release requirements under many harsh conditions. The currently reported fluorine-based release agents...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G77/24C09D183/08C09D5/20
CPCC08G77/24C09D5/18C09D5/20C09D183/08
Inventor 王宇白永平郑晓强韩佰洋李卫东席丹殷晓芬
Owner ANHUI MINGXUN NEW MATERIAL TECH