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Preparation process of plastic film

A technology of plastic film and preparation process, which is applied in the direction of flat products, applications, household appliances, etc., and can solve the problems of narrow application range, poor adaptability, and high processing cost of non-adhesive composite film

Inactive Publication Date: 2021-06-08
陆建杰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the paper-plastic structure has poor adaptability to paper, and the scope of application is narrow, and the processing cost of the non-adhesive composite film is high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A preparation process of a plastic film is characterized in that the ingredients of the plastic film are: the polypropylene component is 55-95%, the maleic anhydride graft modified product component of polyolefin is 2-30%, and the masterbatch component is 2-30%. Divided into 0.5-30%,

[0018] The anti-sticking agent component contained in the agent masterbatch is 0-2%, the antistatic agent component is 0-5%, the matting masterbatch component is 0-20%, and the titanium dioxide and calcium carbonate components are 0-20%. 20%.

[0019] A kind of preparation technology of plastic film comprises the following steps:

[0020] Put the ingredients into the corresponding extruder for melting and plasticizing at 180°C-280°C, extrude and confluence in T-shaped or hanger-shaped die, and extrude through the die at 180°C-280°C;

[0021] Cool the die extruded product of the support layer through a cooling device at 10°C-60°C to form a membrane;

[0022] The film is preheated, stret...

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PUM

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Abstract

The invention discloses a preparation process of a plastic film. The preparation process is characterized in that the plastic film comprises the following components including 55%-95% of polypropylene, 2%-30% of a maleic anhydride grafted modifier of polyolefin and 0.5%-30% of agent master batch, and the agent master batch comprises 0-2% of an anti-sticking agent, 0-5% of an antistatic agent, 0-20% of extinction master batch and 0-20% of titanium dioxide and calcium carbonate. The preparation process has the beneficial effects that a stretch film for low-temperature heat sealing between paper and the plastic film or between the plastic films is provided, the applicability is wider, the cost is lower, when the film is compounded with the paper or other films, coating of glue is not needed, compounding can be completed through contact between a low-temperature heat sealing layer and a compounded object, and no toxic gas is generated during compounding.

Description

technical field [0001] The invention relates to a preparation process of a plastic film. Background technique [0002] At present, the paper-plastic structure has poor adaptability to paper, narrow application range, and high processing cost of glue-free composite film. As an important part of chemical building materials, material pipes are widely used in the fields of building water supply and drainage, urban water supply and drainage, and gas pipes because of their advantages such as small water loss, energy saving, material saving, ecological protection, and convenient completion, and have become urban construction pipes in the new century. The main force of the network. With the continuous improvement of consumers' quality requirements for product environmental protection, health, durability, etc., while the output of my country's plastic pipes is increasing, the product quality level is continuously improving, the technological progress of the industry is accelerating,...

Claims

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Application Information

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IPC IPC(8): B29D7/01B29C48/08B29C55/14C08L23/12C08L51/06C08K3/22C08K3/26C08J5/18
CPCB29C55/143B29D7/01B29C48/0018B29C48/022B29C48/08C08J5/18C08J2323/12C08J2451/06C08K2003/2241C08K2003/265
Inventor 陆建杰
Owner 陆建杰
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