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BOPP composite film with oxygen-barrier modified preparation

A composite film and modification technology, which is applied in the field of BOPP composite film, can solve problems such as rapid aging and poor stability of BOPP composite film, and achieve the effect of improving light transmission performance and tensile strength

Pending Publication Date: 2021-06-11
瑞安市东威塑胶有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] With the continuous increase of market demand, and because ordinary composite films can no longer meet people's needs, BOPP composite films are popularized and used. Although BOPP composite films have high transparency and are easy to peel off when used, ordinary BOPP composite films The stability of the film is poor, and it is more prone to rapid aging in external environments such as light, heat, and oxygen, so a modified BOPP composite film is urgently needed

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A kind of BOPP composite film with oxygen barrier modified preparation comprises the following steps:

[0021] S1. First select the weight fraction as 100 parts of Pullulan polysaccharide, 1000 parts of stretched polypropylene, 200 parts of carbon fiber, 50 parts of dimethyl sulfoxide, 100 parts of nylon fiber, 400 parts of solvent, 10 parts of n-bromobutane, and butyl ester 10 parts, 30 parts of isopropylene;

[0022] S2. Mix dimethyl sulfoxide and Pullulan polysaccharide according to the ratio of 1:2, dissolve in the solvent, then add sodium hydroxide powder until the solution returns to room temperature, and then continue stirring and dissolving. After complete mixing, drop bromo n-butane;

[0023] S3. Add the solution obtained above into distilled water, and after the precipitate is formed, wash it with water, filter it, and dry it in vacuum to obtain an alkylated pullulan polysaccharide;

[0024] S4. The obtained alkylated Pullulan polysaccharide and the above-me...

Embodiment 2

[0034] A kind of BOPP composite film with oxygen barrier modified preparation comprises the following steps:

[0035] S1. First select the weight fraction as 150 parts of Pullulan polysaccharide, 1500 parts of stretched polypropylene, 400 parts of carbon fiber, 5 parts of dimethyl sulfoxide, 150 parts of nylon fiber, 700 parts of solvent, 15 parts of n-bromobutane, and butyl ester 30 parts, 10 parts of isopropylene;

[0036] S2. Mix dimethyl sulfoxide and Pullulan polysaccharide according to the ratio of 1:2, dissolve in the solvent, then add sodium hydroxide powder until the solution returns to room temperature, and then continue stirring and dissolving. After complete mixing, drop bromo n-butane;

[0037] S3. Add the solution obtained above into distilled water, and after the precipitate is formed, wash it with water, filter it, and dry it in vacuum to obtain an alkylated pullulan polysaccharide;

[0038] S4. The obtained alkylated Pullulan polysaccharide and the above-men...

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Abstract

The invention relates to the technical field of composite films, and discloses a BOPP composite film with an oxygen-barrier modification preparation. According to the BOPP composite film with the oxygen-barrier modification preparation, the method comprises the steps of firstly, selecting 100 to 150 parts by weight of Pullulan polysaccharide, 1000 to 1500 parts by weight of stretched polypropylene, 200 to 400 parts by weight of carbon fibers, 50 to 75 parts by weight of dimethyl sulfoxide, 100 to 150 parts by weight of nylon fibers, 400 to 700 parts by weight of a solvent, 10 to 15 parts by weight of n-butyl bromide, 10 to 30 parts by weight of butyl ester and 3 to 10 parts by weight of isopropylene; mixing dimethyl sulfoxide and Pullulan polysaccharide according to a ratio of 1: 2, dissolving in the solvent, then adding sodium hydroxide powder until the temperature of the solution is recovered to be room temperature, and then continuously stirring and dissolving. According to the BOPP composite film with the oxygen-barrier modification preparation, through reasonable burdening and manufacturing standards, the BOPP composite film obtained through modification not only has the basic performance of a common BOPP composite film, but also has the advantages that the tensile strength is obviously improved, and the light transmission performance is also greatly improved.

Description

technical field [0001] The invention relates to the technical field of composite films, in particular to a BOPP composite film with an oxygen barrier modified preparation. Background technique [0002] Composite film is a polymer material composed of two or more layers of films of different materials. It is mainly used in the packaging field. Through compounding, a comprehensive material with each single material can be obtained. Among them, BOPP is also one of the composite films. BOPP In the production of composite film, the polymer melt is first made into a sheet or thick film through a narrow and long die, and then it can be made into a BOPP composite film in a special stretching mechanism and at a specific temperature. [0003] With the continuous increase of market demand, and because ordinary composite films can no longer meet people's needs, BOPP composite films are popularized and used. Although BOPP composite films have high transparency and are easy to peel off wh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J5/18C08L23/12C08L5/00C08L77/00C08K7/06
CPCC08J5/18C08J2323/12C08J2405/00C08J2477/00C08K7/06
Inventor 王辉煌项晓波
Owner 瑞安市东威塑胶有限公司