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Anchoring agent and preparation method and application thereof

An anchoring agent and reaction technology, applied in the direction of adhesives, film/sheet adhesives, film/sheet release liners, etc., can solve the problem that the adhesion between the release film and the substrate and the peeling performance cannot be improved at the same time, To achieve the effect of low peel force, good adhesion, and improved storage stability

Pending Publication Date: 2021-04-06
GUANGDONG BIOMAX SIANDF NEW MATERIAL CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to overcome the shortcomings that the existing release film and the substrate can not be simultaneously improved in adhesion and peeling performance, and provide an anchoring agent

Method used

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  • Anchoring agent and preparation method and application thereof
  • Anchoring agent and preparation method and application thereof
  • Anchoring agent and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] The present invention prepares a kind of anchoring agent, prepares according to the following method:

[0050] S1.190g (molecular weight: 200, 0.95mol) double-terminated hydroxyl polysiloxane, 125.6g (0.95mol) methylvinyldimethoxysilane and 0.094g KOH were reacted at 60°C for 3h to obtain a molecular weight of 510, Organosiloxane A containing vinyl groups and silanol groups with a PDI of 1.83;

[0051] S2.145.2g (0.28mol) organosiloxane A obtained from S1, 82.7g (0.35mol) 3-(2,3-epoxypropoxy)propyltrimethoxysilane and 0.068g KOH were reacted at 60°C After 3 hours, an anchoring agent with a molecular weight of 1123 and a PDI of 1.73 was obtained.

Embodiment 2

[0053] The present invention prepares a kind of anchoring agent, prepares according to the following method:

[0054] S1.150g (molecular weight: 7000, 0.021mol) double-terminated hydroxyl polysiloxane, 2.77g (0.021mol) methylvinyldimethoxysilane and 0.045g KOH were reacted at 60°C for 3h to obtain a molecular weight of 7700, Organosiloxane A containing vinyl groups and silanol groups with a PDI of 1.87;

[0055] S2.120g (0.015mol) organosiloxane A obtained from S1, 5.42g (0.019mol) 3-(2,3-epoxypropoxy)propyltriethoxysilane and 0.0037g KOH were reacted at 60°C After 3 hours, an anchoring agent with a molecular weight of 8312 and a PDI of 1.77 was obtained.

Embodiment 3

[0057] The present invention prepares a kind of anchoring agent, prepares according to the following method:

[0058] S1.300g (molecular weight: 200, 1.5mol) double-terminated hydroxyl polysiloxane, 240.4g (1.5mol) methylvinyldiethoxysilane and 0.16g KOH were reacted at 60°C for 3h to obtain a molecular weight of 552, Organosiloxane A containing vinyl groups and silanol groups with a PDI of 1.91;

[0059] S2.180g (0.326mol) organosiloxane A obtained from S1, 100.4g (0.408mol) 2-(3,4-epoxycyclohexane) ethyltrimethoxysilane and 0.084g KOH were reacted at 60°C After 3 hours, an anchoring agent with a molecular weight of 1240 and a PDI of 1.81 was obtained.

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Abstract

The invention provides a preparation method and application of an anchoring agent for an organic silicon release agent. The anchoring agent has a structure as shown in a formula I. In the preparation process of the anchoring agent, polyorganosiloxane containing hydroxyl and an alkoxy silane compound containing a vinyl group are directly selected for polycondensation reaction, impurities generated in the reaction process can be reduced, the performance of the anchoring agent is further improved, and when the prepared release agent interacts with a base material (such as paper and a polymer film), high adhesion and low strippable performance are realized at the same time, and the storage stability of the anchoring agent at room temperature can be improved.

Description

technical field [0001] The invention belongs to the technical field of organic silicon, and in particular relates to an anchoring agent and its preparation method and application. Background technique [0002] Release agent, also known as anti-adhesive agent, is coated between the substrate and the pressure-sensitive adhesive to protect the adhesive layer and prevent the adhesive layer from being polluted or failing before sticking to other items. The application fields include labels, baking paper, Self-adhesive envelopes, hygiene products and electronic products, etc. Silicone release agent is a kind of release agent, which can be divided into three types according to the reaction mechanism: addition (ie platinum catalysis), condensation (organotin catalysis) and radiation curing (UV light curing) and other forms . In terms of product form, there are solvent type, solvent-free type and emulsion type. Among them, platinum-catalyzed products are the mainstream products on...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G77/20C08G77/14C08G77/06C09J7/40
CPCC08G77/20C08G77/14C08G77/06C09J7/401C09J2483/005
Inventor 黄振宏宋扬刘小芳黄宇斌
Owner GUANGDONG BIOMAX SIANDF NEW MATERIAL CO LTD
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