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Stretch-proof polyethylene winding film and preparation method thereof

A polyethylene and stretch film technology, applied in the field of packaging materials, can solve the problems of poor resilience of stretch films, and achieve the effects of good resilience, smooth appearance and high tensile strength

Inactive Publication Date: 2016-08-17
SUZHOU DINGLI PACKAGING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The Chinese patent with the application number 201410080164.X discloses a high-strength puncture-resistant stretch film, whose mass composition includes the following: PVC, 100 parts; plasticizer, 45-60 parts; epoxy soybean oil, 2-4 parts; Stabilizer, 2-3 parts; antioxidant, 0.1-1 part, but the prepared stretch film has poor resilience, and the tensile strength needs to be further improved

Method used

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  • Stretch-proof polyethylene winding film and preparation method thereof

Examples

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Embodiment 1

[0016] A stretch-resistant polyethylene stretch film, consisting of the following components in parts by mass: 35 parts of polyethylene resin, 9 parts of polyisobutylene, 2 parts of o-hydroxybenzophenone, 5 parts of triallyl cyanurate, formaldehyde 3 parts of triacetoxysilane, 1 part of propylene glycol alginate, 7 parts of diisopropyl phosphite, 4 parts of antioxidant 168, and 5 parts of calcium stearate.

[0017] Preparation:

[0018] (1) According to the above mass parts, polyethylene resin, polyisobutylene, o-hydroxybenzophenone, triallyl cyanurate, methyltriacetoxysilane, propylene glycol alginate, diisopropyl phosphite, After the antioxidant 168 and calcium stearate are mixed, put them in a blender, stir evenly at 180°C to obtain a mixture, wherein the pressure of the blender is 0.8MPa;

[0019] (2) Extrude the mixture obtained in step (1) through a twin-screw extruder, wherein the temperature of the first zone is 155°C, the temperature of the second zone is 160°C, the ...

Embodiment 2

[0022] A stretch-resistant polyethylene stretch film, consisting of the following components in parts by mass: 45 parts of polyethylene resin, 21 parts of polyisobutylene, 11 parts of o-hydroxybenzophenone, 17 parts of triallyl cyanurate, methyl 15 parts of triacetoxysilane, 9 parts of propylene glycol alginate, 15 parts of diisopropyl phosphite, 13 parts of antioxidant 168, and 13 parts of calcium stearate.

[0023] Preparation:

[0024] (1) According to the above mass parts, polyethylene resin, polyisobutylene, o-hydroxybenzophenone, triallyl cyanurate, methyltriacetoxysilane, propylene glycol alginate, diisopropyl phosphite, After the antioxidant 168 and calcium stearate are mixed, place them in a blender, stir evenly at 230°C to obtain a mixture, and the pressure of the blender is 1.2MPa;

[0025] (2) Extrude the mixture obtained in step (1) through a twin-screw extruder, wherein the temperature in the first zone is 170°C, the temperature in the second zone is 175°C, the ...

Embodiment 3

[0028] A stretch-resistant polyethylene stretch film, consisting of the following components in parts by mass: 37 parts of polyethylene resin, 12 parts of polyisobutylene, 4 parts of o-hydroxybenzophenone, 8 parts of triallyl cyanurate, formaldehyde 7 parts of triacetoxysilane, 2 parts of propylene glycol alginate, 9 parts of diisopropyl phosphite, 6 parts of antioxidant 168, and 7 parts of calcium stearate.

[0029] Preparation:

[0030] (1) According to the above mass parts, polyethylene resin, polyisobutylene, o-hydroxybenzophenone, triallyl cyanurate, methyltriacetoxysilane, propylene glycol alginate, diisopropyl phosphite, After the antioxidant 168 and calcium stearate are mixed, place them in a blender, and stir evenly at 190°C to obtain a mixture, wherein the pressure of the blender is 0.9MPa;

[0031] (2) Extrude the mixture obtained in step (1) through a twin-screw extruder, wherein the temperature of the first zone is 160°C, the temperature of the second zone is 165...

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Abstract

The invention discloses a stretch-proof polyethylene winding film and a preparation method thereof. The winding film consists of the following components in parts by mass: 35-45 parts of polyethylene resin, 9-21 parts of polyisobutene, 2-11 parts of o-hydroxybenzophenone, 5-17 parts of triallyl cyanurate, 3-15 parts of methyltriacetoxyl silane, 1-9 parts of propylene glycol alginate, 7-15 parts of diisopropyl phosphite, 4-13 parts of antioxidant 168 and 5-13 parts of calcium stearate. The preparation method comprises the following steps: mixing the components according to the mass parts, putting into a stirrer and stirring uniformly; extruding with a twin-screw extruder; performing film casting; and cooling and packaging to obtain the stretch-proof polyethylene winding film. Through the synergistic effect of the components, the winding film prepared by adopting the preparation method disclosed by the invention has the advantages of flat appearance, no perforation or crack, good resilience and high tensile strength and can be widely applied to the field of packaging.

Description

technical field [0001] The invention belongs to the field of packaging materials, and in particular relates to a stretch-resistant polyethylene stretch film and a preparation method thereof. Background technique [0002] Stretch film, also known as stretch film and heat shrinkable film, has the characteristics of unitization, primary protection, compression fixation, and cost saving, and is widely used in the packaging field. [0003] The Chinese patent application number 201410080164.X discloses a high-strength puncture-resistant stretch film, whose quality composition includes the following: PVC, 100 parts; plasticizer, 45-60 parts; epoxy soybean oil, 2-4 parts; Stabilizer, 2-3 parts; antioxidant, 0.1-1 part, but the prepared stretch film has poor resilience, and the tensile strength needs to be further improved. Contents of the invention [0004] In order to overcome the above deficiencies in the prior art, the present invention provides a stretch-resistant polyethylen...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08L23/20C08K5/00C08K5/132C08K5/3492C08K5/524C08K5/098
CPCC08L23/06C08J5/18C08J2323/06C08J2423/22C08L2203/16C08L2205/03C08L23/22C08K5/00C08K5/132C08K5/34924C08K5/524C08K5/098
Inventor 顾建芳
Owner SUZHOU DINGLI PACKAGING
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