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Mold release agent for masking tape, and preparation method thereof

A masking tape and release agent technology, applied in adhesives, defoamers, film/sheet adhesives, etc., can solve the problems of high temperature curing, release agent dependence on imports, low mobility, etc., to achieve good durability Temperature and weather resistance, less foaming, and low mobility effects

Active Publication Date: 2014-07-16
BLUE OCEAN & BLACK STONE TECH CO LTD FUJIAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the above problems, the present invention provides a product with good temperature and weather resistance, which can provide suitable release force for masking tape and has low mobility, which can solve the problem that the existing release agent is completely dependent on imports. The current situation of the masking tape and its preparation method can solve the problems of high temperature curing and the like

Method used

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  • Mold release agent for masking tape, and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0020] The preparation method of the release agent for masking tape of the present invention includes the following steps:

[0021] S011. Add 80 to 90% of sodium lauryl sulfate and 20 to 35% of water in the above formula in the pre-emulsification kettle, mix and stir them, then add all the ethyl acrylate, Butyl acrylate, methyl methacrylate, styrene, succinic acid, and cross-linking monomers are mixed evenly to prepare monomer pre-emulsion;

[0022] S012. Add 50-70% water, the remaining sodium lauryl sulfate and all sodium bicarbonate in the reaction kettle, and stir evenly;

[0023] S013: The reactor is heated to 78-85°C, and 60-75% by mass ammonium persulfate and 2-8% by mass monomer pre-emulsion are added in the formula;

[0024] S014: After 5 to 15 minutes, start to add the remaining monomer pre-emulsion and ammonium persulfate dropwise, keep the temperature at 80 to 90°C, and complete the dropwise addition within 3.5 to 4.5 hours;

[0025] S015. After the dripping is completed, ke...

Embodiment 1

[0031] The release agent for masking tape of Example 1 of the present invention is composed of the following raw materials in parts by weight:

[0032] Ethyl acrylate 190, butyl acrylate 35, methyl methacrylate 110, succinic acid 8, 1,4-butanediol diacrylate 1.75, deionized water 580, sodium bicarbonate 0.2, sodium lauryl sulfate 3.24, ammonium persulfate 2.35, defoamer 1.3, zinc glycinate 18, ammonia water 10, behenyl succinate sodium salt 30 and modified polysiloxane 5.

[0033] The preparation method of the release agent for masking tape of Example 1 of the present invention includes the following steps:

[0034] S111. Preparation of monomer pre-emulsion: In the pre-emulsification kettle, add 80% of the mass percentage of sodium lauryl sulfate and 25% of the mass of water in the formula, mix and stir, then add all the acrylic acid in the formula Ethyl, butyl acrylate, methyl methacrylate, succinic acid, stir evenly to make monomer pre-emulsion;

[0035] S112. Add 60% by mass water...

Embodiment 2

[0043] The release agent for masking tape of Example 2 of the present invention is composed of the following raw materials in parts by weight:

[0044] Ethyl acrylate 144.5, butyl acrylate 62, styrene 125, succinic acid 10, deionized water 570, sodium bicarbonate 0.2, sodium lauryl sulfate 3.34, sodium persulfate 2.35, defoamer 1.5, zinc glycinate 21 , Ammonia 12, long-chain alkyl surfactant 60 and modified polysiloxane 2.

[0045] The preparation method of the release agent for masking tape of Example 2 of the present invention includes the following steps:

[0046] S211. In the pre-emulsification kettle, add 80% by mass sodium lauryl sulfate and 25% by mass water in the formula, mix and stir, then add all the ethyl acrylate, butyl acrylate, Styrene and succinic acid, stir evenly to make monomer pre-emulsion;

[0047] S212. Add 60% by mass of water, the remaining sodium lauryl sulfate and all the sodium bicarbonate into the reaction kettle, and stir evenly;

[0048] S213, the reactor...

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Abstract

The invention relates to a mold release agent for a masking tape, and a preparation method of the mold release agent. The mold release agent is prepared from the following raw materials in parts by weight: 150-270 parts of ethyl acrylate, 0-90 parts of butyl acrylate, 0-110 parts of methyl methacrylate, 0-105 parts of styrene, 5-10 parts of succinic acid, 0-7 parts of crosslinking monomer, 500-600 parts of deionized water, 0.1-0.4 part of sodium bicarbonate, 3-5 parts of lauryl sodium sulfate, 1.2-3.0 parts of ammonium persulfate, 0.5-2 parts of a defoaming agent, 30-55 parts of zinc glycinate, 5-15 parts of ammonia water, 20-100 parts of long-chain alkyl surface active agent and 0-10 parts of modified polysiloxane. The mold release agent is a water-based mold release agent, is convenient to use and can be directly coated or can be coated after being diluted by water; a catalyst is not fed into the mold release agent, and the mold release agent is capable of crosslinking at low temperature and does not contain an organic solvent, so that the mold release agent is free from environmental pollution and harmless to the human health; furthermore, the mold release agent has good heat resistance and weather resistance, is capable of providing proper mold release force for the masking tape, and is lower in migration rate; the tape prepared by the mold release agent is free from residual glue after being used, so that the protected surface is not polluted.

Description

Technical field [0001] The invention relates to the technical field of release agents, in particular to a release agent for masking tape and a preparation method thereof. Background technique [0002] Masking tape is a kind of high-tech decoration and spraying paper, which is widely used in the production and maintenance of automobiles, buses, airplanes, ships and other vehicles. Spray paint cover; all kinds of electronic appliances production spray paint cover; and printing and paper industry masking, room temperature decoration Spray paint for covering, light weight dressing, packaging, etc. The masking tape is mainly composed of three parts: impregnated paper (made from base paper such as textured paper through impregnation treatment), adhesive and release agent. Release agent, also known as anti-sticking agent and release agent, is one of the key materials for the production of masking tape. It has an important influence on the function and application of masking tape. The r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H21/14D21H21/12D21H19/00C08F220/18C08F220/14C08F212/08C08F2/26C09J7/04
Inventor 杜夕彦马慧罗贺斌
Owner BLUE OCEAN & BLACK STONE TECH CO LTD FUJIAN
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