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

One-component solvent-free polyurethane adhesive and preparation method thereof and raw material composition

A technology of solvent-free polyurethane and raw material composition, applied in the direction of polyurea/polyurethane adhesive, adhesive type, adhesive, etc., can solve the problems of long gel time, poor initial adhesion, high viscosity, etc., and achieve production High efficiency, convenient use and convenient construction

Active Publication Date: 2010-07-28
HUAFON MICROFIBER SHANGHAI
View PDF0 Cites 20 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to overcome the defects of the existing one-component solvent-free polyurethane adhesives, such as high viscosity, uncontrollable film thickness, poor initial adhesion, and long gel time, and provide a non-solvent polyurethane adhesive. Pollution, convenient sizing, fast-curing one-component solvent-free polyurethane adhesive and its preparation method and raw material composition

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • One-component solvent-free polyurethane adhesive and preparation method thereof and raw material composition
  • One-component solvent-free polyurethane adhesive and preparation method thereof and raw material composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A raw material composition of a one-component solvent-free polyurethane adhesive, which contains components in the following proportions: highly active and high-functionality polyether polyol MPO: polyoxypropylene diol 220: polyester polyol PE1: expanded The mass ratio of chain agent ethylene glycol: polyisocyanate VKS: diisocyanate 44C: diisocyanate M-50 is 30:30:5:1:40:10:10.

[0027] Among them, the high-activity high-functionality polyether polyol MPO has a functionality of 4, a number-average molecular weight of 4,000, and a viscosity of 1,000 mPa.s / 25°C; the number-average molecular weight of polyoxypropylene glycol 220 is 2,000, and a viscosity of 800 mPa. s / 25℃; Polyester polyol PE1 is obtained by the condensation reaction of adipic acid, isophthalic acid, 1,2-propylene glycol, and 1,4-butanediol. Its number-average molecular weight is 1000 and its viscosity is 1600mPa.s / 25°C; polyisocyanate VKS functionality is 2.7, NCO content is 32%; diisocyanate 44C is diph...

Embodiment 2

[0032] A raw material composition of a one-component solvent-free polyurethane adhesive, which contains components in the following proportions: highly reactive high-functionality polyether polyol MPO: polyoxypropylene triol 330N: chain extender ethylene glycol: The mass ratio of polyisocyanate 9258C: diisocyanate 44C: toluene diisocyanate TDI is 40:15:2:50:5:10.

[0033] Among them, polyoxypropylene triol 330N is hydroxyethyl polyoxypropylene triol, its number average molecular weight is 5000, viscosity is 1200mPa.s / 25°C; polyisocyanate 9258C functionality is 2.3, NCO content is 31.5%; the rest With embodiment 1.

[0034] The raw material composition of the one-component solvent-free polyurethane adhesive of this embodiment is a multi-component suit form in which each component is independent or each component is divided into several groups, wherein, isocyanate and polyether polyol and / or polyester polyol are not coexist in the same component.

[0035] The specific preparat...

Embodiment 3

[0038] A raw material composition of a one-component solvent-free polyurethane adhesive, which contains components in the following proportions: highly reactive high-functionality polyether polyol MPO: polyoxypropylene diol 220: polyester polyol PE1: poly The mass ratio of isocyanate VKS: diisocyanate 44C: diisocyanate M-50 is 50:10:20:30:10:20. Above-mentioned each component composition is with preceding embodiment.

[0039] The raw material composition of the one-component solvent-free polyurethane adhesive of this embodiment is a multi-component suit form in which each component is independent or each component is divided into several groups, wherein, isocyanate and polyether polyol and / or polyester polyol are not coexist in the same component.

[0040] The specific preparation method of the one-component solvent-free polyurethane adhesive in this example is the same as that in Example 1. The NCO content of the obtained product was tested to be 15.5±1%, and the viscosity w...

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
Functional group degreeaaaaaaaaaa
Functional group degreeaaaaaaaaaa
Login to View More

Abstract

The invention discloses a one-component solvent-free polyurethane adhesive and a preparation method thereof and a raw material composition. The preparation method of the adhesive comprises the following steps of: evenly mixing polyether glycol, polyester polyol and a chain extender, carrying out a polyurethane synthetic reaction on the mixture and diisocyanate and polyisocyanate; testing the NCO value of a reactant and carrying out end point control, wherein various raw materials for the synthetic reaction are 40-70 parts by weight of polyether glycol, 0-20 parts by weight of polyester polyol, 30-50 parts by weight of polyisocyanate, 10-30 parts by weight of diisocyanate and 0-2 parts by weight of chain extender; and the polyether glycol with high activity and high functionality contained in the one-component solvent-free polyurethane adhesive accounts for 20-90 percent of the total weight of the polyether glycol. The one-component solvent-free polyurethane adhesive can be quickly cured, has the advantages of high production efficiency, lower viscosity for adhesive spreading at normal temperature, convenient use, no organic and inorganic solvents and no pollution; in addition, the invention is one component and belongs to a polyurethane adhesive with high efficiency, convenient construction and environmental protection.

Description

technical field [0001] The invention belongs to the field of adhesives, and in particular relates to a one-component solvent-free polyurethane adhesive, a preparation method and a raw material composition thereof. Background technique [0002] At present, the polyurethane adhesives used to bond rigid polyurethane foam boards and metal plates are mainly divided into three categories: solvent-based adhesives, solvent-free two-component adhesives, and one-component solvent-free adhesives. Solvent-based adhesives are limited in application due to environmental pollution and safety issues; solvent-free two-component adhesives need to be compounded before sizing, and the ratio of the two components changes, which affects the adhesive performance Larger, more complicated sizing; one-component solvent-free adhesives are the most convenient and environmentally friendly adhesives, but there are two problems with the current commercially available one-component solvent-free polyurethan...

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): C09J175/08C09J175/06
Inventor 夏佳弟王天龙
Owner HUAFON MICROFIBER SHANGHAI
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