A kind of organic fluorosilicon release type emulsion with good stability and preparation method thereof

A technology with stable performance and organic fluorine, applied in the field of organofluorosilicon release emulsion and its preparation, can solve the problems of unstable anchoring, increased storage cost, increased process and cost, etc. Storage stability, the effect of wide distribution of fluorine groups

Active Publication Date: 2020-11-13
中山市聚力有机硅技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Domestically, solvent-based (non-aqueous) is mainly used, which is only suitable for off-line coating, which increases the process and cost; while water-based emulsions are mostly imported from abroad, which are expensive, high in transportation costs, and have a long lead time. The release emulsion has a short storage period, resulting in a decrease in coating quality and unstable anchoring properties, which will eventually affect the appearance and anchoring performance of the release film, and cannot protect the substrate well.
[0003] At present, whether it is a foreign or domestic release agent, after being applied to the film substrate, it needs to be stored for a period of time, and then used after the peeling force is stable. As a result, the release film needs to be produced in advance, and customers generally need to stock up in advance. Long cycle will lead to increased storage costs

Method used

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  • A kind of organic fluorosilicon release type emulsion with good stability and preparation method thereof
  • A kind of organic fluorosilicon release type emulsion with good stability and preparation method thereof
  • A kind of organic fluorosilicon release type emulsion with good stability and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] A kind of organofluorine silicone release emulsion with good stability performance, it is composed of: 5 parts of alkenyl polyfluorosiloxane, 1.95 parts of hydrogen-containing polyfluorosiloxane, phenyl hydroxyl network silicone resin 0.05 parts, 3 parts of adhesion aid, 5 parts of surfactant, 85 parts of water.

[0050] The alkenyl polyfluorosiloxane is polytrifluoro-MDT resin with vinyl-terminated network structure, and its viscosity is 100 mPa·s.

[0051] The structural formula of the hydrogen-containing polyfluorosiloxane is as follows:

[0052]

[0053] The structural formula of the phenyl hydroxy reticular silicone resin is as follows:

[0054]

[0055] Wherein, R, R", R"' are the same or different straight-chain or branched aryl groups of 6-20 carbon atoms or aralkyl groups of 7-20 carbon atoms; R' is a hydroxyl group.

[0056] The preparation method of the phenylhydroxy reticular silicone resin is as follows: respectively add 140 g of distilled water and...

Embodiment 2

[0065] An organic fluorosilicon release emulsion with good stability, which consists of: 15 parts of alkenyl polyfluorosiloxane, 0.5 part of hydrogen-containing polyfluorosiloxane, phenyl hydroxy network silicone resin 1 part, 3.5 parts of adhesion aid, 10 parts of surfactant, 70 parts of water.

[0066] The alkenyl polyfluorosiloxane is polytrifluoro MDQ resin with vinyl-terminated network structure, and its viscosity is 700 mPa·s.

[0067] The structural formula of the hydrogen-containing polyfluorosiloxane is as follows:

[0068]

[0069] The structural formula of the phenyl hydroxy reticular silicone resin is as follows:

[0070]

[0071] Wherein, R, R", R"' are the same or different straight-chain or branched aryl groups of 6-20 carbon atoms or aralkyl groups of 7-20 carbon atoms; R' is a hydroxyl group.

[0072] The preparation method of the phenyl hydroxy reticular silicone resin is as follows: respectively add 200 g of distilled water and 1.2 g of hydrochloric ...

Embodiment 3

[0081] An organic fluorosilicon release emulsion with good stability, which consists of 25 parts by weight of alkenyl polyfluorosiloxane, 7.9 parts of hydrogen-containing polyfluorosiloxane, phenyl hydroxy network silicone resin 1 part, 0.1 part of adhesion aid, 1 part of surfactant, 65 parts of water.

[0082] The alkenyl polyfluorosiloxane is polyheptafluoride MTQ resin with a vinyl-terminated network structure, and its viscosity is 500 mPa·s.

[0083] The hydrogen-containing polyfluorosiloxane structural formula is as follows:

[0084]

[0085] The structural formula of the phenyl hydroxy reticular silicone resin is as follows:

[0086]

[0087] Wherein, R, R", R"' are the same or different straight-chain or branched aryl groups of 6-20 carbon atoms or aralkyl groups of 7-20 carbon atoms; R' is a hydroxyl group.

[0088] The preparation method of the phenyl hydroxy reticular silicone resin is as follows: respectively add 200 g of distilled water and 1.2 g of hydroch...

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Abstract

The invention relates to the technical field of release emulsion, and discloses an organic fluorosilicone release emulsion with good stable performance and a preparation method thereof. The organic fluorosilicone release emulsion is composed of 5-25 parts of vinyl polyfluorosiloxane, 0.5-10 parts of hydrogen-containing polyfluorosiloxane, 0.05-1 part of phenyl hydroxyl netted silicon resin, 0.1-5parts of an adhesive auxiliary agent, 1-10 parts of a surfactant and 60-85 parts of water. The organic fluorosilicone release emulsion has the advantages that the release film prepared after the organic fluorosilicone release emulsion is applied in a thin film substrate has stable stripping force, has no climbing phenomenon, can be used without storage, and has high residual adhesion power. The organic fluorosilicone release emulsion is an aqueous system, is suitable for on-line coating, reduces the working procedure and can reduce the cost.

Description

technical field [0001] The invention relates to the technical field of release emulsions, more specifically, to an organofluorosilicon release emulsion with good stability and a preparation method thereof. Background technique [0002] Release agents applied to film substrates are mainly silicone release agents, with organic fluorine release agents and some non-silicon release agents. The release agent is divided into two types: solvent type and solvent-free type. Solvent type accounts for more than 60% of the overall release type market and has the lowest coating cost. Domestically, solvent-based (non-aqueous) is mainly used, which is only suitable for off-line coating, which increases the process and cost; while water-based emulsions are mostly imported from abroad, which are expensive, high in transportation costs, and have a long lead time. The release emulsion has a short storage period, resulting in a decrease in coating quality and unstable anchoring properties, whi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G77/04C08G77/00C09D183/08C09D183/04C09D7/65C09D7/63C09D5/20
CPCC08L2205/025C08L2205/035C09D5/20C09D7/63C09D7/65C09D183/08C08L83/08C08L83/04C08L83/06C08L71/02C08K5/19
Inventor 曹坚林秦碧殷苏荣坚梁敏思
Owner 中山市聚力有机硅技术有限公司
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