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Manufacturing method of heat-shrinkable self-adhesive vacuum plating protective film

A protective film and manufacturing method technology, applied in the direction of flat products, applications, household appliances, etc., can solve the problems of the user's material loss of brand image, inability to play a protective role, damage to the surface quality of the product, etc., to achieve good re-peeling performance, Excellent barrier and mechanical properties, solve the effect of easy warping

Active Publication Date: 2017-07-04
WUXI HAITE NEW MATERIAL RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since these materials have a relatively low glass transition temperature and molecular weight, the temperature resistance is greatly reduced. Therefore, it is difficult to peel off the surface of the substrate after the process protection is completed, and the adhesive resin is often transferred and remains on the protected body after peeling off. On the surface of the surface, although this type of protective film accounts for a small proportion of the value of the vacuum plating partial protection industry, if it is used improperly or if a protective film that does not meet the requirements is used, the harm will not only fail to protect, but may Destroy the surface quality of the product, bring tangible material loss and intangible brand image loss to users

Method used

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  • Manufacturing method of heat-shrinkable self-adhesive vacuum plating protective film

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Effect test

Embodiment 1

[0022] A kind of manufacture method of heat-shrinkable self-adhesive vacuum plating protection film, comprises the following steps:

[0023] (1) First synthesize polyvinyl polyacrylate: dissolve 5 kg of glycidyl acrylate, 30 kg of methyl methacrylate, 10 kg of ethyl acrylate, 50 kg of butyl acrylate, and 5 kg of hydroxyethyl methacrylate in 200 mL of ethyl acetate The comonomer solution was obtained in the ester, and 1 / 2 of the comonomer solution was taken out, and 0.5kg of azobisisoheptanonitrile initiator was added to polymerize at 80°C for 1 h, and then the remaining 1 / 2 of the comonomer solution and the remaining 0.5 kg of azobisisoheptanonitrile initiator, after the dropwise addition is completed, continue to react for 3 hours, then, keep the reaction temperature constant, slowly add 0.2kg of triethylamine catalyst and 5kg of acrylic acid functional monomer dropwise, after the dropwise addition, continue to React for 3 hours, and finally, use a rotary evaporator to concen...

Embodiment 2

[0026] A kind of manufacture method of heat-shrinkable self-adhesive vacuum plating protection film, comprises the following steps:

[0027] (1) Synthesize polyvinyl polyacrylate first: dissolve 10 kg allyl glycidyl ester, 32 kg methyl methacrylate, 40 kg butyl acrylate, 10 kg isooctyl acrylate, and 8 kg hydroxyethyl methacrylate Obtain a comonomer solution in 200L toluene, take out 1 / 2 of the comonomer solution, add 0.6kg of azobisisobutyronitrile initiator to polymerize at 85°C for 1 h, then add the remaining 1 / 2 of the comonomer solution dropwise With the remaining 0.4 kg azobisisobutyronitrile initiator, after the dropwise addition, continue to react for 3h, then, keep the reaction temperature constant, slowly add dropwise 0.2kg cetyltrimethylammonium bromide catalyst and 5kg coating After the dropwise addition of the functional monomer of aconic acid, continue to react for 3 hours, and finally, use a rotary evaporator to concentrate the solution, let the solvent evaporate...

Embodiment 3

[0030] A kind of manufacture method of heat-shrinkable self-adhesive vacuum plating protection film, comprises the following steps:

[0031](1) First synthesize polyvinyl polyacrylate: dissolve 5 kg of glycidyl acrylate, 30 kg of methyl methacrylate, 10 kg of ethyl acrylate, 50 kg of butyl acrylate, and 5 kg of hydroxyethyl methacrylate in 200 mL of ethyl acetate The comonomer solution was obtained in the ester, and 1 / 2 of the comonomer solution was taken out, and 0.5kg of azobisisoheptanonitrile initiator was added to polymerize at 80°C for 1 h, and then the remaining 1 / 2 of the comonomer solution and the remaining 0.5 kg of azobisisoheptanonitrile initiator, after the dropwise addition is completed, continue to react for 3 hours, then, keep the reaction temperature constant, slowly add 0.2kg of triethylamine catalyst and 5kg of acrylic acid functional monomer dropwise, after the dropwise addition, continue to React for 3 hours, and finally, use a rotary evaporator to concent...

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Abstract

The invention discloses a manufacturing method of a heat-shrinkable auto-adhesive vacuum plating protective film. The manufacturing method comprises the following steps: (1) firstly, synthesizing polyvinyl polyacrylate; (2) then, performing melt blending on the polyvinyl polyacrylate, polyethylene resin, a first initiator and an antioxidant according to a weight proportion, extruding and granulating, and finally performing extrusion film blowing and UV curing to obtain the heat-shrinkable auto-adhesive vacuum plating protective film. The manufactured protective film wraps a local part, required to be protected, of a vacuum plating component in a heat shrinkage way; in a vacuum plating process, the surface of the film does not crease and deform, the adhesion force is stable, the attachment property is good, the re-peeling performance is excellent, the phenomenon of adhesive residue is avoided, and the barrier and mechanical properties are excellent; the heat-shrinkable auto-adhesive vacuum plating protective film is an excellent vacuum plating protective film material which is non-toxic, environmentally-friendly, safe and practical.

Description

technical field [0001] The invention relates to the field of protective films, in particular to a method for manufacturing a heat-shrinkable self-adhesive vacuum plating protective film. Background technique [0002] Vacuum coating protective film is a modified film material, which has the characteristics of self-adhesive and thermal shrinkage. It is actually a special pressure-sensitive adhesive film, which is mainly composed of substrate and pressure-sensitive materials. Compared with surface protection coatings, it has the advantages of convenient use, low price, and reliable effect, and has attracted much attention in the field of material surface protection. Since polyethylene material is cheap and its viscosity can be adjusted in a wide range according to different application requirements, the current substrate layer mainly uses polyethylene as raw material and is prepared by extrusion molding, injection molding, extrusion blown film molding and other methods. Howeve...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L33/08C08L23/06C08L23/08C08K5/134C08K5/526C08K5/13C08F220/18C08F220/14C08F220/28C08F220/32C08F220/06C08F222/02B29C35/08B29L7/00
Inventor 白永平李卫东魏群丁荣炎黄玉东
Owner WUXI HAITE NEW MATERIAL RES INST
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