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A kind of direct-coated pvc protective film based on acrylate macromonomer and preparation method thereof

A technology of macromolecular monomer and methacrylate, which is applied in the direction of adhesive type, pressure-sensitive film/sheet, film/sheet-shaped adhesive, etc., and can solve pressure-sensitive adhesive layer softening, peeling off, stickiness Fading and other problems, to achieve the effect of excellent adhesion, enhanced binding force, long-term stability and non-attenuation of viscosity

Active Publication Date: 2021-02-19
KUNSHAN BYE MACROMOLECULE MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a direct-coated PVC protective film based on acrylate macromers and its preparation method, which overcomes the defects of the prior art: the migration of the plasticizer will soften the pressure-sensitive adhesive layer, reduce its viscosity, and cause peeling and falling off. The problem of effectively preventing the migration of plasticizers, excellent adhesion to PVC substrates, simplified preparation process, and low cost

Method used

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  • A kind of direct-coated pvc protective film based on acrylate macromonomer and preparation method thereof
  • A kind of direct-coated pvc protective film based on acrylate macromonomer and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0023] Embodiment 1: A kind of preparation method based on acrylate macromolecular direct coating type PVC protective film

[0024] 1) Functionalization of chlorine-containing polymers

[0025] Add 50 parts of toluene and 75 parts of ethyl acetate mixed solvent into the reaction kettle, add 40 parts of chloroprene rubber under stirring, raise the temperature to dissolve it completely; 1 part of methyl methacrylate, 30 parts of tetrahydrofuryl acrylate, 10 parts of hydroxyethyl acrylate, 0.5 parts of azobisisobutyronitrile and 25 parts of ethyl acetate, the time for adding is 1 hour; ℃ for 2 hours, and then add 0.2 parts of hydroquinone to terminate the reaction to obtain a functionalized chlorine-containing high polymer.

[0026] 2) Synthesis of acrylate macromolecular copolymer

[0027] Add 10 parts of isocyanoethyl methacrylate and 0.01 part of dibutyltin dilaurate to the functionalized chlorine-containing high polymer prepared in step 1), stir and react at 80°C for 1 hour...

Embodiment 2

[0032] Embodiment 2: A kind of preparation method based on acrylate macromolecular direct coating type PVC protective film

[0033] 1) Functionalization of chlorine-containing polymers

[0034] Add 50 parts of toluene and 75 parts of ethyl acetate mixed solvent into the reaction kettle, add 40 parts of chlorobenzene rubber under stirring, and heat up to dissolve it completely; at 80±2°C, start to add 20 parts of 1 part of methyl methacrylate, 30 parts of n-butyl methacrylate, 10 parts of hydroxyethyl methacrylate, 0.5 parts of azobisisoheptanonitrile and 25 parts of ethyl acetate mixed monomers, the time of dropping is 1 hour; After dropping, keep warm at 80° C. for 2 hours, and then add 0.2 parts of hydroquinone to terminate the reaction to obtain a functionalized chlorine-containing high polymer.

[0035] 2) Synthesis of acrylate macromolecular copolymer

[0036] Add 10 parts of isocyanoethyl methacrylate and 0.01 part of dibutyltin dibutyrate successively to the functiona...

Embodiment 3

[0041] Embodiment 3: A kind of preparation method based on acrylate macromolecular direct coating type PVC protective film

[0042] 1) Functionalization of chlorine-containing polymers

[0043] Add 50 parts of toluene and 75 parts of ethyl acetate mixed solvent into the reaction kettle, add 40 parts of chlorinated rubber under stirring, and raise the temperature to dissolve it completely; at 80±2°C, start to add 20 1 part of methyl methacrylate, 30 parts of isobornyl acrylate, 10 parts of acrylic acid, 0.5 parts of benzoyl peroxide and 25 parts of ethyl acetate, dropwise for 1 hour; after dropping, keep warm at 80°C for reaction After 2 hours, 0.2 parts of hydroquinone was added to terminate the reaction to obtain a functionalized chlorine-containing high polymer.

[0044] 2) Synthesis of acrylate macromolecular copolymer

[0045] Add 10 parts of isocyanoethyl methacrylate and 0.01 part of dibutyltin diacetate to the functionalized chlorine-containing high polymer prepared i...

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Abstract

The invention discloses a direct coating type PVC protective film based on an acrylic ester macromolecular monomer. The direct coating type PVC protective film based on the acrylic ester macromolecular monomer comprises a pressure-sensitive adhesive layer and a PVC-based film layer; the pressure-sensitive adhesive layer is modified on the basis of the acrylic ester macromolecular monomer; and thesurface of the PVC-based film of a plasticizer is directly coated with the pressure-sensitive adhesive layer. The invention also discloses a preparation method of the direct coating type PVC protective film based on the acrylic ester macromolecular monomer. The preparation method comprises the following steps: performing reaction on a chlorinated polymer to prepare a functionalized chlorinated polymer; modifying pressure-sensitive synthesis by the acrylic ester macromolecular monomer; dissolving the acrylic ester macromolecular monomer modified pressure-sensitive adhesive into a solvent, adding a crosslinking agent and a catalyst, completely stirring, directly coating the PVC-based film and solidifying to prepare the PVC protective film. Migration of the plasticizer can be effectively prevented, the adhesive force on the PVC base material is excellent, the preparation process is simplified, and the cost is low.

Description

technical field [0001] The invention belongs to the field of PVC protective films, and in particular relates to a direct-coating type PVC protective film based on acrylate macromolecular monomer and a preparation method thereof. Background technique [0002] PVC protective film is a kind of protective film obtained by coating soft polyvinyl chloride as the base material and pressure-sensitive adhesive on the surface. Because of its excellent ductility, impact resistance, weather resistance, and machinability, it is widely used in surface protection of large outdoor building materials, outdoor decoration materials, and high-end furniture. In recent years, with the rapid development of the electronic semiconductor industry, PVC protective film has also been used for the protection of electronic components such as wafer cutting. [0003] During the processing of soft PVC film, 30wt%-50wt% plasticizer is usually added to make PVC soft and improve its processing performance. At...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J7/24C09J7/38C09J151/00C08F285/00C08F220/18
CPCC08F285/00C09J151/003C09J2427/006C09J7/245C09J7/38C09J2301/122C08F220/1808
Inventor 喻四海施法宽刘佳
Owner KUNSHAN BYE MACROMOLECULE MATERIAL CO LTD
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