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Release silicone oil capable of improving anchoring property of PEK base material and preparation method thereof

A release and anchoring technology, applied in the direction of coating, etc., can solve the problems of desiliconization, hindering the adhesion of solvent-free release silicone oil coating and coating layer, and coating peeling off, so as to achieve increased anchoring and high residual adhesion Efficiency, coating smooth and dry effect

Active Publication Date: 2021-08-03
惠州市永卓科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since there are many grades of PE particles used in the PEK coating of the coated paper, some PE particles contain more plasticizers and slippery agents, and the plasticizers and slippery agents will form a kind of isolation in the PE coating layer. layer, which hinders the bonding of the solvent-free release silicone oil coating and the coating layer, so coating peeling and desiliconization often occur

Method used

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  • Release silicone oil capable of improving anchoring property of PEK base material and preparation method thereof
  • Release silicone oil capable of improving anchoring property of PEK base material and preparation method thereof
  • Release silicone oil capable of improving anchoring property of PEK base material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] 40 parts of cyclosiloxane containing acryloxypropyl and vinyl groups, 59.8 parts of polydimethylsiloxane, 0.2 parts of alkynyl alcohol, 10 parts of crosslinking agent, 2 parts of anchoring agent, and 2 parts of chelate compound.

[0032] Among them, cyclosiloxane containing acryloyloxypropyl group and vinyl group, polydimethylsiloxane, and alkynyl alcohol are used as the main agent of the release silicone oil.

[0033] Among them, the cyclosiloxane containing acryloyloxypropyl and vinyl contains the following components in parts by weight: 462 parts of methylvinyldimethoxysilane, acryloyloxypropylmethyldimethoxysilane 180 parts of methoxysilane, 160 parts of water, and 1 part of methanesulfonic acid.

[0034] Wherein, the structural formula of cyclosiloxane containing acryloyloxypropyl and vinyl is: Wherein, a is 0-3, b is 1-4, and a+b+c is 5-10. In this example, cyclosiloxane containing acryloxypropyl and vinyl groups is used as one of the main ingredients of the re...

Embodiment 2

[0052] The difference between this embodiment and embodiment 1 is:

[0053] 30 parts of cyclosiloxane containing acryloxypropyl and vinyl groups, 57.6 parts of polydimethylsiloxane, 0.4 parts of alkynyl alcohol, 6 parts of crosslinking agent, 1 part of anchoring agent, and 1 part of chelate compound.

[0054] Among them, the cyclosiloxane containing acryloxypropyl and vinyl contains the following components in parts by weight: 452 parts of methylvinyldimethoxysilane, acryloyloxypropylmethyldimethoxysilane 170 parts of methoxysilane, 150 parts of water, and 0.8 parts of methanesulfonic acid.

[0055] Among them, the viscosity of polydimethylsiloxane is 200 mPa·s.

[0056] Wherein, the mass ratio of the first crosslinking agent to the second crosslinking agent is 3:1.

[0057] Wherein, the first crosslinking agent is polymethylsiloxane with a hydrogen content of 1.1%, and its viscosity at 25° C. is 50 mPa·s.

[0058] Wherein, the first crosslinking agent comprises the followi...

Embodiment 3

[0062] The difference between this embodiment and embodiment 1 is:

[0063] 50 parts of cyclosiloxane containing acryloxypropyl and vinyl groups, 61.6 parts of polydimethylsiloxane, 0.4 parts of alkynyl alcohol, 14 parts of crosslinking agent, 3 parts of anchoring agent, and 3 parts of chelate compound.

[0064] Among them, the cyclosiloxane containing acryloyloxypropyl and vinyl contains the following components in parts by weight: 472 parts of methylvinyldimethoxysilane, acryloyloxypropylmethyl dimethoxysilane 190 parts of methoxysilane, 170 parts of water, and 1.2 parts of methanesulfonic acid.

[0065] Among them, the viscosity of polydimethylsiloxane is 1000 mPa·s.

[0066] Wherein, the mass ratio of the first crosslinking agent to the second crosslinking agent is 5:1.

[0067] Wherein, the first crosslinking agent is polymethylsiloxane with a hydrogen content of 1.3%, and its viscosity at 25° C. is 60 mPa·s.

[0068] Wherein, the first crosslinking agent comprises the...

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Abstract

The invention relates to the technical field of release silicone oil, in particular to solvent-free release silicone oil capable of improving the anchoring property of a PEK base material and a preparation method thereof, and the solvent-free release silicone oil comprises the following components: cyclosiloxane containing acryloyloxypropyl and vinyl, polydimethylsiloxane, alkynol, a cross-linking agent, an anchoring agent and a platinum-tetramethyl divinyl chelate. The anchoring property of the release silicone oil to a PEK base material is greatly improved, the prepared release silicone oil is good in curing property, free of desiliconization phenomenon, very light in stripping force and capable of adapting to application scenes such as high-speed stripping and rapid labeling, meanwhile, the influence on the adhesive layer of an adhesive is very small, and the adhesive layer still has very high bonding force after being stripped from the release silicone oil coating.

Description

technical field [0001] The invention relates to the technical field of release silicone oil, in particular to a solvent-free release silicone oil capable of improving the anchorage of PEK substrates and a preparation method thereof. Background technique [0002] The release silicone oil is mainly divided into solvent-type release silicone oil and solvent-free release silicone oil. Since the solvent-type release silicone oil itself contains solvent, a large amount of solvent needs to be added during use, which is harmful to the environment and personnel. was gradually eliminated. The solvent-free release silicone oil product itself is non-toxic and non-polluting, and does not require the use of solvents during use, and has no pollution to the environment and no toxic effects on personnel. [0003] At present, solvent-free release silicone oil is suitable for paper substrates such as glassine paper and coated paper PEK. Among them, the adaptability and anchorage to glassine ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D183/04C09D183/07C09D5/20C09D7/65
CPCC09D183/04C09D5/20C09D7/65C08L2205/035C08L2205/025C08L83/04
Inventor 王细平
Owner 惠州市永卓科技有限公司
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