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Emulsion type acrylate pressure sensitive adhesive and preparation method thereof

A pressure-sensitive adhesive, acrylate technology, applied in the field of pressure-sensitive adhesive, can solve the problems of high production cost, poor weather resistance, insufficient viscosity, etc., and achieve the effect of low cost and strong weather resistance

Inactive Publication Date: 2012-07-04
新丰杰力电工材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, solvent-based acrylate pressure-sensitive adhesive tapes or silicone resin-based pressure-sensitive adhesive tapes inevitably produce a large amount of volatilization of organic solvents during the production process, thus causing serious pollution to the environment.
At the same time, its production cost is also higher than that of emulsion type acrylate pressure sensitive adhesive tape
[0003] In addition, the current application of emulsion-type acrylate pressure-sensitive adhesives to microwave oven doors mainly has disadvantages such as insufficient viscosity or poor temperature resistance and weather resistance.
Japanese patent JP2005136298-A involves adding a cross-linking agent containing isocyanate radicals and epoxy groups and a pressure-sensitive adhesive prepared by melamine to a polyacrylate emulsion synthesized by copolymerization of butyl acrylate, acrylonitrile and acrylic acid, but the The mechanical properties of the pressure-sensitive adhesive are poor, the peel strength is less than 200N / m, and the stability is not good, and the residual glue is easy to appear; the patent CN01819920.8 uses a bisamide cross-linking agent to modify the polyacrylate emulsion pressure-sensitive adhesive. When it is in a high temperature environment above 150 ℃, its peel strength basically disappears

Method used

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  • Emulsion type acrylate pressure sensitive adhesive and preparation method thereof
  • Emulsion type acrylate pressure sensitive adhesive and preparation method thereof
  • Emulsion type acrylate pressure sensitive adhesive and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] An emulsion type acrylate pressure-sensitive adhesive, which is formed by free radical polymerization of the following components by weight:

[0020]

[0021] The synthesis steps are as follows:

[0022] (1) Dissolve 1.2 parts of polymerizable emulsifier in 22.5 parts of water for emulsification, then add 30 parts of butyl acrylate and 15 parts of methyl methacrylate to emulsify to obtain emulsion A. 1.2 parts of the polymerizable emulsifier was dissolved with 30 parts of water and emulsified. After emulsification, 69 parts of butyl acrylate, 3 parts of acrylic acid, 3 parts of hydroxyethyl acrylate and 3.75 parts of hydrogenated rosin were added to emulsify the obtained emulsion B.

[0023] (2) Dissolve 0.225 parts of potassium persulfate with 3.75 parts of water, and obtain trigger solution a after fully dissolving. Dissolve 0.375 parts of potassium persulfate with 7.5 parts of water to obtain trigger solution b after fully dissolving.

[0024] (3) Add 56.25 par...

Embodiment 2

[0031] An emulsion type acrylate pressure-sensitive adhesive, which is formed by free radical polymerization of the following components by weight:

[0032]

[0033]

[0034] The synthesis steps are as follows:

[0035] (1) Dissolve 1.2 parts of polymerizable emulsifier in 22.5 parts of water for emulsification, then add 30 parts of butyl acrylate and 15 parts of methyl methacrylate to emulsify to obtain emulsion A. 1.2 parts of the polymerizable emulsifier was dissolved with 30 parts of water and emulsified. After emulsification, 60 parts of butyl acrylate, 5 parts of acrylic acid, 4 parts of hydroxyethyl acrylate and 3.75 parts of hydrogenated rosin were added to emulsify the obtained emulsion B.

[0036] (2) Dissolve 0.225 parts of potassium persulfate with 3.75 parts of water, and obtain trigger solution a after fully dissolving. Dissolve 0.375 parts of potassium persulfate with 7.5 parts of water to obtain trigger solution b after fully dissolving.

[0037] (3) A...

Embodiment 3

[0044] An emulsion type acrylate pressure-sensitive adhesive, which is formed by free radical polymerization of the following components by weight:

[0045]

[0046] (1) Dissolve 1.0 part of a polymerizable emulsifier in 22.5 parts of water for emulsification, and then add 25 parts of butyl acrylate and 150 parts of methyl methacrylate to emulsify to obtain emulsion A. 1.0 parts of polymerizable emulsifier was dissolved in 30 parts of water and emulsified. After emulsification, 56 parts of butyl acrylate, 3.8 parts of acrylic acid, and 2.5 parts of hydroxyethyl acrylate were added to emulsify the obtained emulsion B.

[0047](2) Dissolve 0.17 part of potassium persulfate with 3.75 parts of water, and obtain trigger solution a after fully dissolving. Dissolve 0.33 parts of potassium persulfate with 7.5 parts of water, and fully dissolve to obtain trigger solution b.

[0048] (3) Add 56.25 parts of water into the reaction kettle and raise the temperature to 79°C, add 0.8 par...

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Abstract

The invention relates to an emulsion type acrylate pressure sensitive adhesive and a preparation method thereof. The emulsion type acrylate pressure sensitive adhesive is obtained by polymerizing the following components in parts by weight through free radicals: 90-100 parts of butyl acrylate, 1-5 parts of acrylic acid, 1-5 parts of hydroxyethyl acrylate, 12-18 parts of methyl methacrylate, 0-5 parts of hydrogenated rosin, 1-3 parts of allyloxy nonylphenol, 0.5-2 parts of potassium persulfate and 100-150 parts of water. Through pre-emulsion semi-continuous seeding polymerization reaction, an emulsion type pressure sensitive adhesive with high viscosity, high temperature resistance and strong weather resistance is synthesized. According to the invention, polymerizable allyloxy nonylphenol is adopted as emulsifying agent; after the reaction is finished, an allyloxy nonylphenol unit directly enters the prepared polymer so that the post-treatment process of the emulsifying agent is saved.Because no organic solvent is used, the pollution caused by volatilization of the organic solvent to the environment is avoided and the cost is reduced.

Description

technical field [0001] The invention belongs to the field of pressure-sensitive adhesives, in particular to an emulsion-type acrylate pressure-sensitive adhesive and a preparation method thereof. Background technique [0002] At present, the adhesive tapes used on the door of microwave ovens are mainly solvent-based acrylic pressure-sensitive adhesives or silicone resin-based pressure-sensitive adhesive tapes. However, solvent-based acrylate pressure-sensitive adhesive tapes or silicone resin-based pressure-sensitive adhesive tapes inevitably produce a large amount of volatilization of organic solvents during the production process, thus causing serious pollution to the environment. At the same time, its production cost is also higher than that of emulsion-type acrylate pressure-sensitive adhesive tape. [0003] In addition, the current application of emulsion-type acrylate pressure-sensitive adhesives to microwave oven doors mainly has disadvantages such as insufficient vi...

Claims

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Application Information

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IPC IPC(8): C09J133/08C08F220/18C08F220/14C08F216/14C08F2/24
Inventor 何俊
Owner 新丰杰力电工材料有限公司
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