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Preparation method of water-soluble strippable protective coating

A protective coating, water-soluble technology, applied in the field of preparation of water-soluble peelable protective coatings, can solve the problem of easy scratches and other problems

Inactive Publication Date: 2013-06-26
NANCHANG HANGKONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current protection method using paper is easy to cause scratches; organic solvents (such as acetone, ethyl acetate, toluene, etc.) can also dissolve these optical functional polymer materials, so the protective film containing organic solvents cannot be used for protection.

Method used

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  • Preparation method of water-soluble strippable protective coating
  • Preparation method of water-soluble strippable protective coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] (1) Add 6 g of potassium persulfate and 5 g of n-dodecanethiol to 100 g of acrylic acid;

[0022] (2) Put the mixture container (such as a beaker) in a water bath at (65±2) ℃, and stir for 30 minutes; during this process, the viscosity will gradually increase, and water can be added to reduce the viscosity to facilitate stirring;

[0023] (3) Add 5 g of fumed silica and 1.5 g of water-soluble polyether-modified polysiloxane to the reaction product;

[0024] (4) Steps (1), (2) and (3) above to obtain component A;

[0025] (5) Polyethylene glycol with a molecular weight of 6000, as component B;

[0026] (6) Before construction, mix component A and component B at a ratio of 100:5, adjust to an appropriate viscosity with water, and then apply by brush;

[0027] (7) After the water in the coating evaporates, cure it in an oven at (70±5)°C for 10 minutes to obtain a peelable protective coating.

Embodiment 2

[0029] (1) Add 6 g of potassium persulfate and 5 g of n-dodecanethiol to 100 g of acrylic acid;

[0030] (2) Put the mixture container (such as a beaker) in a water bath at (65±2) ℃, and stir for 30 minutes; during this process, the viscosity will gradually increase, and water can be added to reduce the viscosity to facilitate stirring;

[0031] (3) Add 6 g of fumed silica and 1.5 g of water-soluble polyether-modified polysiloxane to the reaction product;

[0032] (4) Steps (1), (2) and (3) above to obtain component A;

[0033] (5) Polyethylene glycol with a molecular weight of 6000, as component B;

[0034] (6) Before construction, mix component A and component B at a ratio of 100:6 (mass fraction), adjust to an appropriate viscosity with water, and then apply by brush;

[0035] (7) After the water in the coating evaporates, cure it in an oven at (70±5)°C for 10 minutes to obtain a peelable protective coating.

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Abstract

The invention relates to a preparation method of a water-soluble strippable protective coating. The preparation method comprises the following steps of: (1) adding potassium persulfate and n-dodecyl mercaptan to acrylic acid; (2) placing a container filled with products in a water bath pot at 63-67 DEG C and stirring for 30mutesin; (3) adding gas phase silicon dioxide and water-soluble polyether modified polysiloxane to the products; (4) adding polyethylene glycol with molecular weight of 6000 and adjusting to appropriate viscosity by water for brush coating; and (5) after the coating is volatilized, curing for 10minutes in an oven at 65-75 DEG C to obtain the strippable protective coating.

Description

technical field [0001] The invention relates to a preparation method of a water-soluble peelable protective coating. Background technique [0002] Optical functional polymer materials, such as polymethyl methacrylate, polystyrene, polycarbonate, etc., need to be protected during transportation and production. The current protection method using paper is easy to cause scratches; organic solvents (such as acetone, ethyl acetate, toluene, etc.) can also dissolve these optical functional polymer materials, so the protective film containing organic solvents cannot be used for protection. . [0003] The water-soluble peelable protective coating prepared by the present invention does not contain organic solvents at all, and the coating has flexibility, which can protect these optical functional polymer materials during transportation and production, and can be easily removed after the protective function is completed. The optical properties of these materials will not be affected...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/02C09D5/20C09D7/12C08F120/06
Inventor 王云英郑照前吴传邹江向东东
Owner NANCHANG HANGKONG UNIVERSITY