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High-ductility protective film and manufacturing process thereof

A manufacturing process and ductility technology, which is applied in the field of high ductility protective film and its manufacturing process, can solve the problems of reducing the service life of the mold, scratches and cracks on the surface of stamping products, and achieves improved puncture resistance, not easy to break, and expand. The effect of the application foreground

Pending Publication Date: 2022-04-22
SUZHOU XINZHONGDE NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the process of metal plate stamping and forming, the processing environment has large tensile force, high friction force, local high temperature and other factors that cause the surface of the stamped product to be scratched, wrinkled or even cracked, which also reduces the service life of the mold. Therefore, in the stamping process , a protective film must be applied to metal stamping parts for protection

Method used

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  • High-ductility protective film and manufacturing process thereof
  • High-ductility protective film and manufacturing process thereof
  • High-ductility protective film and manufacturing process thereof

Examples

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Effect test

Embodiment 1~4

[0037] Embodiments 1 to 4: A high-extensibility protective film, the protective film includes a polyethylene base material layer 1 and an adhesive layer 2 coated on one surface of the polyethylene base material layer 1, the adhesive layer 2 is combined with the polyethylene base material layer 1 A release material layer 3 is bonded to the opposite surface of the vinyl substrate layer 1;

[0038] The polyethylene substrate layer 1 is obtained by blow molding of a master batch to obtain a protective film, and the master batch is composed of the following components by weight, as described in Table 1:

[0039] Table 1

[0040]

Embodiment 1

[0041] In Example 1, the stearate is aluminum stearate, the antioxidant is antioxidant 616, and the terpolymerized polypropylene is ethylene-propylene-1-butene terpolymer.

Embodiment 2

[0042] In Example 2, the stearate is zinc stearate, the antioxidant is antioxidant 1010, and the terpolymerized polypropylene is ethylene-propylene-1-butene terpolymer.

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Abstract

The invention discloses a high-ductility protective film and a manufacturing process thereof, the protective film comprises a polyethylene base material layer and an adhesive layer coated on one surface of the polyethylene base material layer, and a release material layer is attached to the surface, opposite to the polyethylene base material layer, of the adhesive layer; the polyethylene base material layer is a protective film obtained by blow molding of master batches; the master batch is prepared from the following components in parts by weight: 100 parts of low-density polyethylene with a melt index of 0.5 to 5g / 10min, 10 to 25 parts of metallocene linear low-density polyethylene with a melt index of 1.8 to 2g / 10min, 5 to 12 parts of ternary co-polypropylene, 0.3 to 1 part of oleamide, 0.1 to 1 part of stearate, 0.2 to 0.8 part of zinc oxide, 0.5 to 1 part of stearate, 1 to 3 parts of polysebacic acid-decanediol glycol, 2 to 4 parts of dicyclohexylcarbodiimide and 0.5 to 1.5 parts of antioxidant. According to the protective film, the elongation at break of the film is improved, the film is not easy to break during stamping, the puncture resistance of the protective film is also improved, and the puncture force reaches 18N.

Description

technical field [0001] The invention relates to the field of protective films, in particular to a high-extensibility protective film and a manufacturing process thereof. Background technique [0002] The protective film is a film material that has a protective effect on the surface of other materials. Its main function is to protect the protected material from mechanical scratches, dust pollution, harmful gas erosion and microorganisms during manufacturing, transportation, storage and secondary processing. corrosion. Polyethylene film has the characteristics of softness, good toughness, high elongation, easy bending and good adhesion, and occupies a large market share in protective films. At present, in the factory production of automobiles, household appliances and other fields, the metal stamping forming process has been widely used and formed a very mature process. In the process of metal plate stamping and forming, the processing environment has large tensile force, hi...

Claims

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Application Information

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IPC IPC(8): C09J7/24C08L23/06C08L23/08C08L23/14C08K5/20C08K5/098C08K3/22C08J5/18
CPCC09J7/243C08J5/18C09J2301/122C09J2423/046C08J2323/06C08J2423/08C08J2423/14C08K5/20C08K5/098C08K2003/2296
Inventor 顾明涛施利明沈文龙李敏王瑞波
Owner SUZHOU XINZHONGDE NEW MATERIAL CO LTD
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