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Addition-type solution-type isolating agent and preparation method thereof

A release agent, solution-based technology, used in inks, household appliances, no pigment coating, etc., can solve the problems of not being able to coat silicon on both sides of paper, having residues, and high energy consumption, and achieving a bright, smooth, low-cost elastic film. Silicon transfer, good substrate bonding effect

Active Publication Date: 2014-12-17
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

However, the condensation-type solution-type paper release agent has problems such as high energy consumption, residue, and can not be used for double-sided silicon coating of paper.

Method used

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  • Addition-type solution-type isolating agent and preparation method thereof
  • Addition-type solution-type isolating agent and preparation method thereof
  • Addition-type solution-type isolating agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Example 1: The base polymer is made of raw rubber a with a molecular weight of 500,000 and a vinyl mass fraction of 0.7%. 1 And raw rubber a with a molecular weight of 400,000 and a vinyl mass fraction of 0.17%~0.18% 2 and toluene composition.

[0031] Raw rubber a 1 The structural formula is:

[0032] Raw rubber a 2 The structural formula is:

[0033] .

[0034] To prepare component A:

[0035] Put 259Kg of toluene into a stirred 500L reactor, and then put 37Kg of raw rubber a 1 And 74Kg raw rubber a 2 , and then stir the mixture at room temperature for 3~4 hours to form a uniform solution, then let it stand for 1~2 hours to defoam and cool it down, then put the solution out of the package and store it to get component A.

[0036] To prepare Component B:

[0037] In a 20L stirred tank, the mass fraction of prepared platinum is 0.7%~0.73% platinum-tetramethyldivinyldisiloxane complex, tetramethyldivinyldisiloxane, toluene according to Mix 1,152 grams of plat...

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Abstract

The invention relates to an addition-type solution-type isolating agent and a preparation method thereof, and the isolating agent is an antistick coating base material. The isolating agent is prepared from an A composition (an isolating agent effective composition) containing vinyl polysiloxane, a platinum catalyst B composition and a hydrogen-containing polysiloxane C composition, and the A composition, the B composition and the C composition are subjected to an addition reaction and converted into a partially-crosslinked polysiloxane coating with isolating property. The isolating agent before curing is in the state of silicon oil, and the cured isolating layer is an elastic coating in the state of rubber. When being applied to specific release paper, the provided isolating agent shows excellent peeling performance and good usability, has no mobility and keeps a relatively high bonding rate.

Description

technical field [0001] The invention relates to the field of organosilicon chemistry, in particular to a three-component addition type solution type organosilicon release agent and a preparation method thereof. Background technique [0002] Paper release agent is mainly used in the production of release paper (also known as release paper), the purpose of which is to easily peel off the adhesive from the substrate. Therefore, release paper is widely used to produce various pressure-sensitive tapes (paper sheets) and packaging materials for various viscous substances. Currently, the commercially available paper release agents can be divided into emulsion type, solution type and solvent-free type according to their forms. three kinds. Due to the influence of factors such as cost, process, curing effect, etc., the main requirement of the domestic market is a solution-type paper release agent. However, the condensation-type solution-type paper release agent has problems such as...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D183/07C09D183/05C09D11/06D21H19/32
Inventor 王细平
Owner 惠州市永卓科技有限公司
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