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Anti-ultraviolet release paper and preparation method thereof

An anti-ultraviolet, release paper technology, used in paper, papermaking, surface covering paper, etc., can solve problems such as affecting the normal use of release paper, degradation of release paper performance, and aging.

Inactive Publication Date: 2021-11-12
江苏硕茂苏彩新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing anti-ultraviolet release paper has a low anti-ultraviolet rate and will age after being exposed to ultraviolet rays for a long time, which will reduce the performance of the release paper and affect the normal use of the release paper

Method used

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  • Anti-ultraviolet release paper and preparation method thereof
  • Anti-ultraviolet release paper and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0036] An anti-ultraviolet release paper, comprising base paper, the base paper surface is provided with a coating, and the coating surface is provided with a silicone oil layer, and the coating comprises the following raw materials in parts by weight: 100 parts of acrylic emulsion, 10 parts of white oil, 5 parts of ultraviolet absorber part, 20 parts of deionized water;

[0037] The coating is prepared by mixing acrylic emulsion, white oil, ultraviolet absorber and deionized water.

[0038] Described ultraviolet absorber is made by following steps:

[0039]Step A1: Add cresylenol, sodium bicarbonate, and deionized water into the reaction kettle, pass in carbon dioxide, and carry out reflux reaction at a speed of 150r / min and a temperature of 100°C for 4 hours, then cool to room temperature and filter , adjust the pH value of the filtrate to 1, crystallize and wash at a temperature of 0°C to obtain intermediate 1, add resorcinol, intermediate 1, zinc chloride, phosphorus oxyc...

Embodiment 2

[0045] An anti-ultraviolet release paper, comprising base paper, the base paper surface is provided with a coating, and the coating surface is provided with a silicone oil layer, and the coating comprises the following raw materials in parts by weight: 110 parts of acrylic emulsion, 13 parts of white oil, 8 parts of ultraviolet absorber part, 25 parts of deionized water;

[0046] The coating is prepared by mixing acrylic emulsion, white oil, ultraviolet absorber and deionized water.

[0047] Described ultraviolet absorber is made by following steps:

[0048] Step A1: Add cresylenol, sodium bicarbonate, and deionized water into the reaction kettle, pass in carbon dioxide, and carry out reflux reaction at a speed of 150r / min and a temperature of 110°C for 4 hours, then cool to room temperature and filter , adjust the pH value of the filtrate to 1, crystallize and wash at a temperature of 0°C to obtain intermediate 1, add resorcinol, intermediate 1, zinc chloride, phosphorus oxy...

Embodiment 3

[0054] A kind of anti-ultraviolet release paper, comprising base paper, base paper surface is provided with coating, and coating surface is provided with silicone oil layer, and described coating comprises following raw materials in parts by weight: 120 parts of acrylic emulsion, 15 parts of white oil, 10 parts of ultraviolet absorber part, 30 parts of deionized water;

[0055] The coating is prepared by mixing acrylic emulsion, white oil, ultraviolet absorber and deionized water.

[0056] Described ultraviolet absorber is made by following steps:

[0057] Step A1: Add cresylenol, sodium bicarbonate, and deionized water into the reaction kettle, pass in carbon dioxide, and carry out reflux reaction at a speed of 200r / min and a temperature of 110°C for 6 hours, then cool to room temperature and filter , adjust the pH value of the filtrate to 1, crystallize and wash at a temperature of 0°C to obtain intermediate 1, add resorcinol, intermediate 1, zinc chloride, phosphorus oxych...

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Abstract

The invention discloses anti-ultraviolet release paper and a preparation method thereof, and belongs to the technical field of release paper preparation. The release paper comprises raw paper, the surface of the raw paper is provided with a coating, and the surface of the coating is provided with a silicone oil layer. An ultraviolet light absorber is prepared in the coating preparation process, the ultraviolet light absorber is grafted with a polymer, so that the compatibility between the ultraviolet light absorber and the coating is improved, meanwhile, the migration resistance is improved, and the ultraviolet resistance cannot be reduced after long-time use. Hydrogen bonds in molecules of the ultraviolet light absorber and nitrogen atoms on carbonyl oxygen or triazine rings form chelate rings, and after ultraviolet light is absorbed, thermal vibration occurs, the hydrogen bonds are broken, and the chelate rings are opened, ultraviolet energy is converted into heat energy which is then released, so that peroxide can be reduced and eliminated, and aging of high polymer materials is further inhibited. The wavelength range of ultraviolet light which can be absorbed by the ultraviolet light absorber is wider, and the application range of the release paper is widened.

Description

technical field [0001] The invention relates to the technical field of release paper preparation, in particular to an anti-ultraviolet release paper and a preparation method thereof. Background technique [0002] Release paper, also known as release paper, anti-adhesive paper, silicone oil paper, is a kind of anti-adhesive paper that prevents prepreg from sticking and protects prepreg from contamination. It is mainly pasted on the surface of the tape to protect the surface of the tape. adhesive layer. The traditional release paper is composed of base paper, isolation layer and anti-adhesive layer. Its preparation process is to coat a layer of release agent (the release agent is mainly polyethylene) on the surface of the bottom paper of the release paper, and then coat a layer of anti-sticking agent (the anti-sticking agent is mainly silicone oil) on the surface of the coating layer to obtain Release paper. The release paper is made of paper coated with anti-adhesive subst...

Claims

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Application Information

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IPC IPC(8): D21H27/18D21H23/52D21H21/14
CPCD21H27/18D21H23/52D21H21/14
Inventor 不公告发明人
Owner 江苏硕茂苏彩新材料有限公司
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