Preparation method of peelable protecting film composition

A technology of composition and protective film, which is applied in the direction of coating, etc., can solve the problems of single protective performance, low coating film strength, poor peelability, etc., and achieve the effects of improving appearance, high coating film strength and preventing pollution

Inactive Publication Date: 2017-06-09
重庆市共赢包装制品有限公司
View PDF0 Cites 1 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 disadv...

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

[0026] The preparation method of peelable protective film composition comprises the following steps:

[0027] 1) Put the raw materials polypropylene glycol and polyethylene glycol into a drying oven for dehydration for 450~500 minutes, the drying temperature is controlled at 110~125°C, and set aside; put the raw material dimethylolpropionic acid in an oven and dry for 100~150 minutes, The drying temperature is controlled at 110~125°C, and it is ready for use; the raw materials triethylamine and butanone are dehydrated with molecular sieves for 5~7 days, and they are set aside;

[0028] 2) Add isophorone diisocyanate, dibutyltin dilaurate, polypropylene glycol, polyethylene glycol and butanone that have been dehydrated in step 1) into the first reaction kettle at room temperature, and then raise the temperature to 58 ~80°C, make them mix and react in the first reactor until the value of -NCO% in the system does not change, and obtain the primary product for later use;

[0029]...

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

No PUM Login to view more

Abstract

The invention discloses a preparation method of a peelable protecting film composition. The preparation method comprises the following procedures: (1) dewatering and drying the raw materials; (2) adding isophorone diisocyanate and the like into a first reaction kettle at the room temperature, so as to obtain a primary product; (3) adding dimethylolpropionic acid into the primary product, and carrying out reduced pressure distillation, so as to obtain a secondary product; (4) dispersing the secondary product into a second reaction kettle, and adding a diethylenetriamine water solution, so as to prepare an aliphatic waterborne polyurethane emulsion; (5) adding the silica sol and the aliphatic waterborne polyurethane emulsion into a third reaction kettle, so as to obtain a mixed emulsion for later use; (6) adding a proper amount of acrylic copolymer sylvite and the like into a fourth reaction kettle, so as to obtain a mixed base solution; and (7) adding the mixed emulsion into the mixed base solution, so as to obtain the peelable protecting film composition. The peelable protecting film composition prepared by virtue of the preparation method has relatively strong cohesion, good peelable property, relatively high film strength and relatively good safety and environmental protection property.

Description

technical field [0001] The invention relates to the field of packaging and decoration, in particular to a preparation method of a peelable protective film composition. 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 coatings still have ...

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
IPC IPC(8): C09D175/08C09D7/12C08G18/48C08G18/66C08G18/34C08G18/12
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 Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap