Stretch-wrapping film and preparation process thereof

A stretch wrapping film and preparation process technology, applied in flat products, other household appliances, applications, etc., can solve the problems of low cost performance, low viscosity, and small stretch ratio of stretch wrapping film.

Inactive Publication Date: 2018-03-23
大冶天林辅料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problems existing in the above-mentioned prior art, the present invention provides a stretch wrapping film after a lot of research and continuous exploration, which solves the problems of low cost performance and small stretching ratio of the stretch wrapping film in the prior art, And the viscosity does not decrease after stretching

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] It is prepared from the following raw materials in parts by weight, ethylene: octene-1: polyisobutene: straw: 2,2-dimethylbenzyl diphenylamine: VCI = 170: 63: 52: 69: 22: 19 .

[0016] The preparation process of the present invention is as follows:

[0017] Heating: Mix the above-mentioned raw materials according to the above-mentioned weight ratio, then raise the temperature to 250°C-280°C to form a melt;

[0018] Extrusion: Extrude the above-mentioned heated raw materials;

[0019] Casting: the above-mentioned extruded raw materials are casted, and then cooled by chilling rolls. The temperature of the casting cooling rolls is controlled at 20°C to 30°C, and the winding tension is within 10kg.

Embodiment 2

[0021] It is prepared from the following raw materials in parts by weight, ethylene: octene-1: polyisobutene: straw: 2,2-dimethylbenzyl diphenylamine: VCI = 130: 40: 30: 54: 13: 10 .

[0022] Its preparation process is with embodiment 1.

Embodiment 3

[0024] It is prepared from the following raw materials in parts by weight, ethylene: octene-1: polyisobutene: straw: 2,2-dimethylbenzyl diphenylamine: VCI = 220: 110: 80: 99: 48: 45 .

[0025] Its preparation process is with embodiment 1.

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PUM

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Abstract

The invention relates to a stretch wrapping film and a preparation process thereof, which are widely used in the packaging and warehouse storage fields of hardware, minerals, chemicals, medicine, food, machinery and other products. It is prepared from the following raw materials ethylene, octene-1, polyisobutylene, straw, 2,2-dimethylbenzyl diphenylamine and VCI in parts by weight. It has strong toughness, high elasticity, tear resistance, high Adhesive, thin, cold-resistant, heat-resistant, pressure-resistant, dust-proof, waterproof, one-sided adhesive and double-sided adhesive, etc., can save materials, labor and time when used.

Description

technical field [0001] The invention relates to a stretch film, in particular to a stretch stretch film and a preparation process thereof, which are widely used in the packaging and warehouse storage fields of hardware, minerals, chemicals, medicine, food, machinery and other products. Background technique [0002] Stretch film, also known as stretch film and heat shrinkable film, was the first in China to produce PVC stretch film with PVC as the base material and DOA as the plasticizer and self-adhesive function. Due to environmental protection issues, high cost, poor stretchability and other reasons, it has been gradually eliminated. Stretch film must have two most basic properties, one necessary condition is to have good mechanical strength, better extensibility and good resilience; another necessary condition is that its surface (single side or double side) must be Has strong viscosity. Polyethylene can produce films with good mechanical strength, good elongation and g...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F291/08C08F291/00C08F210/02C08F210/08C08J5/18B29D7/01
CPCC08F289/00B29D7/01C08F255/10C08J5/18C08J2351/00C08J2351/06C08F210/02C08F210/08
Inventor 林承建
Owner 大冶天林辅料有限公司
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