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

Diamino self-crosslinked single-component polyurethane waterborne universal glue and preparation method thereof

A one-component, polyurethane technology, applied in polyurea/polyurethane adhesives, adhesives, adhesive types, etc., can solve problems such as low melting point, achieve improved water resistance, wide bonding range, and solve bonding range Effect

Active Publication Date: 2019-05-31
FOSHAN JINGXIN HUIMING TECH CO LTD
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the defects of the prior art, to provide a diamino self-crosslinking one-component polyurethane water-based universal adhesive and its preparation method, which not only solves the problem of environmental protection, but also solves the problem of low melting point

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

[0030] A preparation method of a diamino self-crosslinking one-component polyurethane water-based universal adhesive, comprising the following steps:

[0031] (1) After adding 100 g of poly(ethylene glycol adipate) diol with a molecular weight of 2000 and 100 g of ethyl acetate in the reactor and stirring and mixing for 20 min, then add 20.5 g of isophorone diisocyanate, and then heat up to 60 ° C. Add 0.2g of dibutyltin dilaurate and react for 1 hour, further raise the temperature to 80°C, and react for 3 hours;

[0032] (2) Add 4g of 2,2'-dimethylol butyric acid into the reactor, conduct the first reaction at 80°C for 2 hours, then add 4.8g of 2,2'-dimethylol butyric acid into the reactor , carry out the second reaction for 3 hours;

[0033] (3) Cool down to below 50°C, and add 12.36g of bisaminosiloxane crosslinking agent 9300, stir and neutralize for 1 hour;

[0034] (4) Add 128g of deionized water to a high-speed disperser with a speed of 3000r to disperse and emulsify ...

Embodiment 2

[0036] A preparation method of a diamino self-crosslinking one-component polyurethane water-based universal adhesive, comprising the following steps:

[0037] (1) After adding 100g of polyethylene adipate diol with a molecular weight of 1000 and 100g of ethyl acetate in the reactor and stirring and mixing for 30min, then adding 22.4g of hexamethylene diisocyanate, and then heating up to 60°C, Add 0.5g of stannous octoate and react for 1 hour, further raise the temperature to 80°C, and react for 2 hours;

[0038] (2) Add 6g of 2,2'-dimethylol butyric acid into the reactor, conduct the first reaction at 80°C for 2 hours, then add 8.8g of 2,2'-dimethylol butyric acid into the reactor , carry out the second reaction for 3 hours;

[0039] (3) Cool down to below 50°C, and add 23.6g of bisaminosiloxane crosslinking agent 9301, stir and neutralize for 1 hour;

[0040](4) Add 46g of deionized water to a high-speed disperser with a speed of 3000r to disperse and emulsify for 20 minute...

Embodiment 3

[0042] A preparation method of a diamino self-crosslinking one-component polyurethane water-based universal adhesive, comprising the following steps:

[0043] (1) After adding 100g of polyadipate-1,4-butylene glycol ester diol with a molecular weight of 2500 and 100g of ethyl acetate in the reactor and stirring and mixing for 25min, then add 12.5g of phenylmethane diisocyanate, and then heat up To 60°C, add 0.5g N,N-dimethylcyclohexylamine and react for 1 hour, further raise the temperature to 80°C, and react for 2 hours;

[0044] (2) Add 4g of 2,2'-dimethylolpropionic acid into the reactor, conduct the first reaction at 80°C for 2 hours, then add 4.1g of 2,2'-dimethylolpropionic acid into the reactor , carry out the second reaction for 3 hours;

[0045] (3) Cool down to below 50°C, and add 14.26g of bisaminosiloxane crosslinking agent 9301, stir and neutralize for 1 hour;

[0046] (4) Add 135g of deionized water to a high-speed disperser with a rotation speed of 3000r to di...

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 diamino self-crosslinked single-component polyurethane waterborne universal glue, prepared by subjecting a polyester polyol, a diisocyanate and a hydrophilic chain extender to chain-extending reaction in a low-boiling-point solvent environment under the action of a catalyst, neutralizing with a regulator, and emulsifying through water. The diamino self-crosslinked single-component polyurethane waterborne universal glue is suitable for gluing the materials, such as metals and nonmetals, and has a wide range of purposes; with the diamino structure, the glue herein can gain effectively improved ability to glue metal materials.

Description

technical field [0001] The invention relates to the field of adhesives, in particular to a diamino self-crosslinking one-component polyurethane water-based universal adhesive and a preparation method thereof. Background technique [0002] As sustainable development and environmental protection are increasingly valued by the country, the adhesive industry is gradually transforming to water-based and solvent-free. However, the domestic research and development of water-based adhesives is still in its infancy. The properties of water-based polyurethane adhesives currently on the market are not as good as those of oil-based polyurethane adhesives, and there is no water-based universal adhesive that can be used for bonding metal materials and non-metal materials. Therefore, in the decoration industry, different adhesives are required for the bonding of different materials, which increases the complexity of the process operation. In order to solve the above technical problems, m...

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): C09J175/06C08G18/10C08G18/32C08G18/42C08G18/66
Inventor 周建明刘晓鸿周国豪陆佩仪
Owner FOSHAN JINGXIN HUIMING TECH CO LTD
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