Non-transfer organic silicon modified acrylate parting agent and preparation method thereof

An acrylate and organosilicon technology, applied in the field of organosilicon modified acrylate release agent and its preparation, can solve problems such as transfer, and achieve the effects of simple synthesis process, enhanced blending compatibility and low cost

Active Publication Date: 2017-02-08
ANHUI MINGXUN NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The first purpose of the present invention is to solve the problem that the protective film release agent coating is transferred to the subsensitive adhesive layer during use, and a kind of acrylate release agent without silicon transfer during use is provided

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Weigh 60g of ethyl acetate, 0.12g of AIBN, 2g of glycidyl methacrylate, 20g of methyl methacrylate, and 10g of butyl acrylate, add them into the reaction kettle, raise the temperature to 80°C, and react for 3h. 7.76 g of amino-terminated siloxane and 0.12 g of triethylamine were added dropwise for 2 hours, followed by a heat preservation reaction for 6 hours to obtain a silicone-modified acrylate. Add 0.3g of chlorinated polyolefin, 0.6g of SBS, and stir at room temperature for 30min to prepare a silicone-modified acrylate release agent.

[0045] The silicone-modified acrylate release agent prepared in Example 1 was applied in the field of PE protective film, and the adhesion retention rate of the pressure-sensitive adhesive was 99%.

Embodiment 2

[0047] Weigh 50g of ethyl acetate, 0.12g of AIBN, 5g of glycidyl methacrylate, 20g of methyl methacrylate, and 10g of butyl acrylate, add them into the reaction kettle, raise the temperature to 80°C, and react for 3h. Add 19.76 g of amino-terminated siloxane and 0.12 g of triethylamine dropwise, add dropwise for 2 hours, and keep warm for 6 hours to prepare silicone-modified acrylate. Add 0.3g of chlorinated polyolefin, 0.6g of SBS, and stir at room temperature for 30min to prepare a silicone-modified acrylate release agent.

[0048] The silicone-modified acrylate release agent prepared in Example 2 is applied in the field of PE protective film, and the adhesion retention rate of the pressure-sensitive adhesive is 100%.

Embodiment 3

[0050] Weigh 40g of ethyl acetate, 0.12g of AIBN, 8g of glycidyl methacrylate, 26g of methyl methacrylate, and 12g of butyl acrylate, add them into the reaction kettle, raise the temperature to 80°C, and react for 3h. 13.76 g of amino-terminated siloxane and 0.12 g of triethylamine were added dropwise for 2 hours, followed by a heat preservation reaction for 6 hours to obtain a silicone-modified acrylate. Add 0.3g of chlorinated polyolefin, 0.6g of SBS, and stir at room temperature for 30min to prepare a silicone-modified acrylate release agent.

[0051] The silicone-modified acrylate release agent prepared in Example 3 is applied in the field of PE protective film, and the adhesion retention rate of the pressure-sensitive adhesive is 100%.

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PUM

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Abstract

The invention discloses a non-transfer organic silicon modified acrylate parting agent. The non-transfer organic silicon modified acrylate parting agent is prepared from the following raw materials of 89 to 99.8wt% of organic silicon modified acrylate, 0.1 to 1wt% of interface modifier, and 0.1 to 10wt% of dispersion stabilizer. The non-transfer organic silicon modified acrylate parting agent has the advantages that by introducing an organic silicon molecular chain into a acrylate molecular chain through a chemical bonding manner, and adding the interface modifier and the dispersion stabilizer, the acrylate parting agent without silicon transfer in the use process is obtained; the acrylate parting agent can be used as a parting coating for the back side of a substrate of an electronic protective film, and be widely applied into the field of protective films; in the use process, the silicon-containing parting agent is not transferred to the adhesive layer side of the protective film; the adhesion force of pressure-sensitive adhesive in the 6 month or above protective film is maintained 99% or above.

Description

technical field [0001] The invention relates to the technical field of release agents, in particular to a silicone-modified acrylate release agent and its preparation technology. Background technique [0002] Protective film is widely used in modern society, and it consists of a three-layer structure, which is a film substrate in the middle, a pressure-sensitive adhesive layer on one side, and a release coating on the other side. During use, the function of the release coating is to reduce the unwinding force between the sub-sensitive adhesive layer and the substrate, but the protective film currently used has the phenomenon of transfer of the release coating to the sub-sensitive adhesive layer, which affects the sub-sensitive adhesive layer. The adhesion stability of the adhesive layer, often with the prolongation of use time, the release agent is transferred to the sub-sensitive adhesive layer, which reduces the adhesive force of the pressure-sensitive adhesive. Contents...

Claims

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Application Information

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IPC IPC(8): C09J7/02C09D133/12C09D7/12C08F220/14C08F220/18C08F220/32
CPCC08F220/14C08L2205/03C09D7/65C09D133/12C09J7/201C09J7/22C08L23/28C08L53/02C08F220/1804C08F220/325
Inventor 白永平岳利培李卫东李晶波席丹殷晓芬
Owner ANHUI MINGXUN NEW MATERIAL TECH
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