Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Preparation method of high-strength protective film composition coated film

A technology of protective film and composition, applied in the field of packaging and decoration, can solve the problems of poor peelability, single protective performance, low coating film strength, etc., and achieve the effects of preventing pollution, improving mechanical strength, and high coating film strength

Inactive Publication Date: 2017-06-09
重庆市共赢包装制品有限公司
View PDF0 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing water-based protective coatings still have the disadvantages of low film strength, poor peelability and single protective performance.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The preparation method of high-strength protective film composition coating film comprises the following steps:

[0026] 1) Add isophorone diisocyanate, polypropylene glycol, polyethylene glycol, dibutyltin dilaurate and butanone to the first reaction kettle at room temperature, and then raise the temperature to 58~80°C to make them Mix and react in the reactor until the value of -NCO% in the system does not change, and obtain the primary product for subsequent use;

[0027] 2) Control the temperature at 80°C, add dimethylol propionic acid to the primary product obtained in step 1) and react for 220~260min, then lower the temperature to 38~43°C, add triethylamine to obtain the secondary product ; Adding secondary products to the second reaction kettle filled with distilled water and dispersing the secondary products in distilled water, then adding diethylenetriamine aqueous solution to obtain aliphatic water-based polyurethane emulsion for subsequent use;

[0028] 3) A...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
boiling pointaaaaaaaaaa
Login to View More

Abstract

The invention discloses a preparation method of a high-strength protective film composition coated film. The preparation method comprises the following steps: 1) adding isophorone diisocyanate and the like into a first reaction kettle to obtain a primary product; 2) adding dimethylolpropionic acid into the primary product to obtain an aliphatic water-based polyurethane emulsion; 3) adding the aliphatic water-based polyurethane emulsion into a third reaction kettle to obtain a mixed emulsion for later use; 4) adding right amounts of acrylic acid copolymer potassium salt and the like into a distilled-water-containing fourth reaction kettle to obtain a mixed substrate; 5) adding the mixed emulsion into the mixed substrate to obtain a high-strength protective film composition; 6) wiping and airing the plastic film, and diluting the high-strength protective film composition for later use; and 7) spraying the high-strength protective film composition onto the plastic film, and airing to obtain the high-strength protective film composition coated film. The coated film is convenient for testing the tensile property, corrosion resistance, moisture permeability, peel strength and other properties of the protective film composition.

Description

technical field [0001] The invention relates to the field of packaging and decoration, in particular to a preparation method of a high-strength protective film composition coating film. Background technique [0002] In order to prevent the materials or semi-products exposed to the atmosphere from being polluted, corroded and damaged, and prolong their service life, they are usually coated with good protective and peelable coatings on their surfaces for effective and temporary maintenance. Archive protection. In this way, it can not only isolate the invasion of air, salt spray, and microorganisms from the outside to achieve anti-corrosion effect; but also achieve the effect of cleaning and decontamination by adsorbing pollutants. Compared with solvent-based protective coatings, water-based protective coatings are safer and more environmentally friendly, so they are widely used in the field of product packaging and decoration. However, the existing water-based protective co...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C08J7/04C09D175/08C09D5/08C09D5/16C09D5/20C09D7/06C09D7/12C08G18/75C08G18/66C08G18/48C08G18/34C09D7/47
Inventor 谭春芳
Owner 重庆市共赢包装制品有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com