Tearable film thermoplastic acrylic resin and preparation method thereof

A thermoplastic acrylic acid, methyl methacrylate technology, applied in the direction of coating, can solve the problem of resin stickiness, etc., to achieve the effect of improving peelability

Active Publication Date: 2019-09-06
GUANGDONG RITOP FINE CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a kind of tearable film thermoplastic acrylic resin and preparation method thereof, no matter the resin all shows the advantage of being easy to

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A preparation method of a tearable film thermoplastic acrylic resin, comprising the steps of:

[0030] Step 1: Add the solvent into the reaction vessel and heat it to 70°C; mix the soft elastomer, methyl methacrylate, styrene, C12-C18 alkyl methacrylate, and silicone monomer to obtain a monomer phase ;

[0031] Step 2: The monomer phase and 70-80% initiator are added dropwise to the reaction vessel of step 1 at the same time, and added dropwise for 2 hours under the protection of an inert gas;

[0032] Step 3: Add the remaining initiator into the reaction container, keep it warm at 80-85°C for 1 hour, and finish the reaction

[0033] The formula table is as follows: ethyl acrylate 25g; methyl methacrylate 15g; styrene 5g; dodecyl methacrylate 4g; triacetoxyvinylsilane 1g; 50g.

Embodiment 2

[0035] A preparation method of a tearable film thermoplastic acrylic resin, comprising the steps of:

[0036] Step 1: Add the solvent into the reaction vessel and heat it to 70°C; mix the soft elastomer, methyl methacrylate, styrene, C12-C18 alkyl methacrylate, and silicone monomer to obtain a monomer phase ;

[0037] Step 2: The monomer phase and 70-80% initiator are added dropwise to the reaction vessel of step 1 at the same time, and added dropwise for 3 hours under the protection of an inert gas;

[0038] Step 3: Add the remaining initiator into the reaction container, keep it warm at 80-85°C for 1 hour, and finish the reaction

[0039] The formula table is as follows: n-butyl acrylate 30g; methyl methacrylate 10g; styrene 10g; tetradecyl methacrylate 5g; vinyltrimethoxysilane 0.5g; Toluene 44g.

Embodiment 3

[0041] A preparation method of a tearable film thermoplastic acrylic resin, comprising the steps of:

[0042] Step 1: Add the solvent into the reaction vessel and heat it to 75°C; mix the soft elastomer, methyl methacrylate, styrene, C12-C18 alkyl methacrylate, and silicone monomer to obtain a monomer phase ;

[0043] Step 2: The monomer phase and 70-80% initiator are added dropwise to the reaction vessel of step 1 at the same time, and added dropwise for 2 hours under the protection of an inert gas;

[0044] Step 3: Add the remaining initiator into the reaction container, keep it warm at 85°C for 2 hours, and then finish the reaction

[0045] The formula table is as follows: n-butyl acrylate 27g; methyl methacrylate 12g; styrene 7g; methacrylate stearate 4g; vinyltrimethoxysilane 1.5g; azobisisobutyronitrile 0.3g, xylene 48g.

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PUM

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Abstract

The invention belongs to the field of special films, and discloses a tearable film thermoplastic acrylic resin, which is prepared by carrying out a radical polymerization reaction on the following components by weight: 24-30% of a soft monomer, 10-15% of methyl methacrylate, 5-10% of styrene, 3-5% of C12-C18 alkyl methacrylate, 0.5-1.5% of an organosilicon monomer, and the balance of a solvent. According to the present invention, the resin exhibits excellent easy-peeling property at both high and low temperatures, and does not use a plasticizer, such that the problem of after tackiness of theresin at a high temperature is solved.

Description

technical field [0001] The invention relates to the field of special films, in particular to a tearable film thermoplastic acrylic resin and a preparation method thereof. Background technique [0002] The main working principle of the acrylic tearable film is that the resin is dissolved and dispersed into the organic solvent, and when the coating is sprayed onto the solid surface, a tearable film is formed on the solid surface as the solvent volatilizes. [0003] The major drawbacks of existing acrylic tearable films are: [0004] Generally, the tearable film is easy to tear at low temperature but not easy to peel off at high temperature (such as 180°C), and there are problems of strong adhesion and easy breakage of the film; [0005] Generally, the problem of stickiness at high temperature is overcome by adding a plasticizer. At the same time, when the plasticizer is added, the phenomenon of plasticizer migration is easy to occur. [0006] Based on the above defects, the ...

Claims

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Application Information

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IPC IPC(8): C08F220/18C08F220/14C08F212/08C08F230/08C09D143/04
CPCC08F220/18C09D143/04C08F220/1804
Inventor 杨胜廷
Owner GUANGDONG RITOP FINE CHEM
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