Preparation method and application of air-permeable and waterproof packaging material

A packaging material, breathable and waterproof technology, applied in the field of packaging materials, can solve the problems of poor air permeability, easy surface pollution, environmental pollution, etc., and achieve the effects of improved performance, strong waterproof performance, and good breathable effect

Inactive Publication Date: 2018-05-04
叶芳
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the problems of plastic packaging, such as easy static electricity, easy surface pollution, poor air permeability, environmental pollution caused by discarded objects, and difficulty in recycling, cannot be ignored and urgently need to be solved.

Method used

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  • Preparation method and application of air-permeable and waterproof packaging material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] (1) Put 40 parts of ethylene-methyl acrylate, 22 parts of polyisocyanate, 10 parts of maleic anhydride grafted polypropylene, and 6 parts of polybutylene adipate terephthalate into a constant temperature water bath, and add 1.5 times quality polyethylene glycol, heated in a water bath, reacted at a constant temperature of 80°C for 3 hours, centrifuged after discharging, washed the separated mixture twice with absolute ethanol, and then dried it in a vacuum drying oven at a drying temperature of 50°C, the drying time is 8 hours to obtain the first mixture;

[0022] (2) Add 8 parts of montmorillonite, 7 parts of chloroether resin, and 150 parts of deionized water into the ultrasonic disperser, and disperse until uniform, the ultrasonic power is 600W, the ultrasonic time is 60 minutes, and then dicyclohexylamine nitrite is added 3 parts, 2 parts of methyl ethyl ketone oxime, stirred and reacted in a nitrogen atmosphere at 80°C for 1 hour, filtered and washed twice with abs...

Embodiment 2

[0027] (1) Put 45 parts of ethylene-methyl acrylate, 24 parts of polyisocyanate, 11 parts of maleic anhydride grafted polypropylene, and 7 parts of polybutylene adipate terephthalate into a constant temperature water bath, add 1.5 times High-quality polyethylene glycol, heated in a water bath, and reacted at a constant temperature of 80 ° C for 3 hours, centrifuged after discharge, washed the separated mixture with absolute ethanol for 3 times, and then placed it in a vacuum drying oven for drying. The drying temperature is 55°C, the drying time was 9 hours to obtain the first mixture;

[0028] (2) Add 10 parts of montmorillonite, 8 parts of chloroether resin, and 155 parts of deionized water into the ultrasonic disperser, and disperse until uniform by ultrasonic. The ultrasonic power is 600W, and the ultrasonic time is 75 minutes, and then dicyclohexylamine nitrite is added 4 parts, 3 parts of methyl ethyl ketone oxime, stirred and reacted in a nitrogen atmosphere at 85°C for...

Embodiment 3

[0033] (1) Put 50 parts of ethylene-methyl acrylate, 26 parts of polyisocyanate, 12 parts of maleic anhydride grafted polypropylene, and 8 parts of polybutylene adipate terephthalate into a constant temperature water bath, add 1.5 times High quality polyethylene glycol, heated in a water bath, reacted at a constant temperature of 80°C for 3 hours, centrifuged after discharging, washed the separated mixture 4 times with absolute ethanol, and then placed it in a vacuum drying oven for drying. The drying temperature was 60°C, the drying time is 10 hours to obtain the first mixture;

[0034] (2) Add 12 parts of montmorillonite, 9 parts of chloroether resin, and 160 parts of deionized water into an ultrasonic disperser, ultrasonically disperse until uniform, ultrasonic power is 600W, ultrasonic time is 90 minutes, and then dicyclohexylamine nitrite is added 5 parts, 4 parts of methyl ethyl ketone oxime, stirred and reacted in a nitrogen atmosphere at 90°C for 2 hours, filtered and ...

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Abstract

The invention discloses a preparation method and application of an air-permeable and waterproof packaging material. The method comprises the following steps: heating ethylene-methylacrylate, polyisocyanate, maleic anhydride grafted polypropylene, poly(butylene adipate-co-terephthalate) and polyethylene glycol in a water bath; centrifuging and washing, and drying to obtain a first mixture; then after ultrasonically dispersing montmorillonite, epichlorohydrin resin and de-ionized water, adding dicyclohexylaminenitrite and methyl ethyl ketoxime; reacting and washing to prepare a second mixture; finally, adding the first mixture and the second mixture into a plasticizer, hydrogenated castor oil and dimethicone and mixing; extruding a mixture through a double-screw extruder, and carrying out die pressing and molding to obtain the finished-product packaging material. The air-permeable and waterproof packaging material prepared by the preparation method has a good ventilation effect and a strong waterproof property and has a good application prospect in medical equipment product packaging.

Description

technical field [0001] The invention relates to the technical field of packaging materials, in particular to a preparation method and application of a breathable and waterproof packaging material. Background technique [0002] Packaging materials refer to the materials used to make packaging containers, packaging decoration, packaging printing, packaging and transportation to meet product packaging requirements, including metal, plastic, glass, ceramics, paper, bamboo, wild mushrooms, natural fibers, Main packaging materials such as chemical fibers and composite materials, and auxiliary materials such as coatings, adhesives, strapping tapes, decorations, and printing materials. Among the main packaging materials, paper packaging materials, plastic packaging materials, metal packaging materials and glass packaging materials are the most widely used categories. [0003] With the continuous improvement of people's living standards, people are paying more and more attention to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L75/06C08L51/06C08L71/03C08L91/00C08L83/04C08K5/32C08K5/33C08K3/34
CPCC08L23/0869C08L2205/035C08L75/06C08L51/06C08L71/03C08L91/00C08L83/04C08K5/32C08K5/33C08K3/346
Inventor 叶芳
Owner 叶芳
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