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

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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; plasticiz

Method used

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  • Stretch-proof polyethylene winding film and preparation method thereof

Examples

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Example Embodiment

[0015] Example 1

[0016] A stretch-resistant polyethylene stretch film composed of the following parts by mass: 35 parts of polyethylene resin, 9 parts of polyisobutylene, 2 parts of o-hydroxybenzophenone, 5 parts of triallyl cyanurate, 3 parts of triacetoxysilane, 1 part of propylene glycol alginate, 7 parts of diisopropyl phosphite, 1684 parts of antioxidant, 5 parts of calcium stearate.

[0017] Preparation:

[0018] (1) Add polyethylene resin, polyisobutylene, o-hydroxybenzophenone, triallyl cyanurate, methyltriacetoxysilane, propylene glycol alginate, diisopropyl phosphite, After the antioxidant 168 and calcium stearate are mixed, they are placed in a mixer, and the mixture is uniformly stirred at 180°C, where the mixer pressure is 0.8MPa;

[0019] (2) Extrude the mixture obtained in step (1) through a twin-screw extruder, where the temperature in the first zone is 155°C, the temperature in the second zone is 160°C, the temperature in the third zone is 170°C, and the temperatur...

Example Embodiment

[0021] Example 2

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

[0023] Preparation:

[0024] (1) Add polyethylene resin, polyisobutylene, o-hydroxybenzophenone, triallyl cyanurate, methyltriacetoxysilane, propylene glycol alginate, diisopropyl phosphite, After the antioxidant 168 and calcium stearate are mixed, they are placed in a mixer, and the mixture is uniformly stirred at 230°C. The mixer pressure is 1.2MPa;

[0025] (2) Extrude the mixture obtained in step (1) through a twin-screw extruder, where the temperature in the first zone is 170°C, the temperature in the second zone is 175°C, the temperature in the third zone is 190°C, and the...

Example Embodiment

[0027] Example 3

[0028] A stretch-resistant polyethylene stretch film, consisting of the following parts by mass: 37 parts of polyethylene resin, 12 parts of polyisobutylene, 4 parts of o-hydroxybenzophenone, 8 parts of triallyl cyanurate, 7 parts of triacetoxysilane, 2 parts of propylene glycol alginate, 9 parts of diisopropyl phosphite, 1686 parts of antioxidant, 7 parts of calcium stearate.

[0029] Preparation:

[0030] (1) Add polyethylene resin, polyisobutylene, o-hydroxybenzophenone, triallyl cyanurate, methyltriacetoxysilane, propylene glycol alginate, diisopropyl phosphite, After the antioxidant 168 and calcium stearate are mixed, they are placed in a mixer, and the mixture is uniformly stirred at 190°C, where the mixer pressure is 0.9MPa;

[0031] (2) Extrude the mixture obtained in step (1) through a twin-screw extruder, where the temperature in the first zone is 160°C, the temperature in the second zone is 165°C, the temperature in the third zone is 175°C, and the tempe...

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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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