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Manufacturing method of self-adhesive protective film for vacuum plating

A manufacturing method and self-adhesive technology, which is applied in the manufacture of self-adhesive protective film for vacuum plating, can solve the problems of user material loss of brand image, easy transfer of adhesive resin, damage to product surface quality, etc., and achieve re-peeling performance Good, excellent barrier and mechanical properties, solve the effect of easy warping

Inactive Publication Date: 2015-07-22
WUXI HAITE NEW MATERIAL RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because these materials have a relatively low glass transition temperature and molecular weight, the high temperature resistance is greatly reduced. Therefore, it is difficult to peel off the surface of the substrate after the process protection is completed, and after peeling, the adhesive resin is often easily transferred and remains on the protected surface. On the surface of the body, it may damage the surface quality of the product, bringing tangible material loss and intangible brand image loss to the user

Method used

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  • Manufacturing method of self-adhesive protective film for vacuum plating

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Comparison scheme
Effect test

Embodiment 1

[0020] A method for manufacturing a self-adhesive protective film for vacuum plating, specifically comprising the following steps:

[0021] (1) Weigh each raw material according to the following weight ratio: 100 parts of LDPE resin, 2 parts of acrylate monomer, including 1 part of butyl acrylate and 1 part of isooctyl acrylate, 0.5 part of azobisisoheptyl nitrile initiator, anti- Oxygen 1010 0.2 parts;

[0022] (2) Dissolve 2 parts of acrylate monomer and 0.5 part of azobisisoheptanonitrile initiator in 25 parts of acetone, then mix it with 100 parts of LDPE resin and 0.2 part of antioxidant 1010 in a high-speed mixer , the rotation speed is 200 rpm, and then the in-situ grafting and extrusion granulation are realized in the twin-screw extruder. 140°C in zone 4, 145°C in zone 5, 135°C in zone 6, and 130°C in zone 7; finally, the prepared grafted pellets are directly formed into a film by blow molding or casting.

Embodiment 2

[0024] A method for manufacturing a self-adhesive protective film for vacuum plating, specifically comprising the following steps:

[0025] (1) Weigh each raw material according to the following weight ratio: 100 parts of LLDPE resin, 5 parts of acrylate monomer, including 2 parts of butyl acrylate, 2 parts of isooctyl acrylate, 1 part of itaconic acid, diphenyl peroxide 1.0 part of acyl initiator, the weight ratio is 0.5 part of the compound of 1:1 antioxidant 1076 and antioxidant 168;

[0026] (2) Dissolve 5 parts of acrylate monomer and 1.0 part of dibenzoyl peroxide initiator in 70 parts of acetone, then mix it with 100 parts of LLDPE resin and 0.5 part of antioxidant in a high-speed mixer, The rotation speed is 180 rpm, and then in-situ grafting and extrusion granulation are realized in the twin-screw extruder. Zone 140°C, Zone 5 145°C, Zone 6 135°C, Zone 7 130°C; Finally, the prepared grafted pellets are directly formed into films by blow molding or casting.

Embodiment 3

[0028] A method for manufacturing a self-adhesive protective film for vacuum plating, specifically comprising the following steps:

[0029] (1) Weigh each raw material according to the following weight ratio: 50 parts of MDPE resin, 50 parts of LLDPE resin, 15 parts of acrylate monomer, including 8 parts of butyl acrylate, 4 parts of hydroxyethyl methacrylate, 3 parts of methacrylic acid Part, 2.0 parts of dibenzoyl peroxide initiator, 1.0 parts of the compound of antioxidant 1010 and antioxidant 168 that weight ratio is 1:1;

[0030] (2) Dissolve 15 parts of acrylate monomer and 2.0 parts of dibenzoyl peroxide initiator in 200 parts of acetone, then mix it with 50 parts of MDPE resin, 50 parts of LLDPE resin and 1.0 part of antioxidant in a high-speed mixer After mixing evenly in the medium, the rotation speed was 180 rpm, and then in-situ grafting and extrusion granulation were realized in the twin-screw extruder. The temperature settings of each temperature section of the e...

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Abstract

The invention discloses a manufacturing method of a self-adhesive protective film for vacuum plating. The manufacturing method comprises the following steps: weighing the following raw materials in parts by weight: 100 parts of polyethylene resin, 2-15 parts of acrylate monomer, 0.2-5.0 parts of a first processing additive, and 0.2-1.0 part of a second processing additive; firstly, dissolving the acrylate monomer and the first processing additive in a solvent to obtain a solution, then uniformly mixing the solution with polyethylene resin and the second processing additive in a blender, realizing in-situ grafting and extrusion granulation in an extruder, finally film-forming the prepared grafted granules through a blow molding or tape-casting method directly. The manufacturing method is simple in process; the manufactured protective film is vacuum-plated in a local position, needing to be protected, of a part; during vacuum plating, the surface of the film has no wrinkle and no deformation, is stable in adhesion, good in attachment property and re-peeling performance, has no residue phenomenon; the protective film is excellent in barrier and mechanical properties, non-toxic, environment-friendly, safe and practical, and is an excellent vacuum-plated protective film material.

Description

technical field [0001] The invention relates to the field of protective films, in particular to a method for manufacturing a self-adhesive protective film for vacuum plating. Background technique [0002] The vacuum coating protective film is generally a modified polymer matrix protective film material, which has the characteristics of self-adhesive and thermal shrinkage, and is mainly composed of a polymer substrate and a pressure-sensitive functional material. 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. Due to the low price of polyethylene material, the viscosity can be adjusted in a wide range according to different application requirements, so the current vacuum coating protective film substrate mainly uses polyethylene as raw material, and is prepared by extrusion molding, injection molding, blow molding and other methods....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F255/02C08F220/18C08F220/28C08F222/02C08F220/06C08F220/14C08F220/32C08F2/44C08K5/134C08K5/526
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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