Shoe cellulose powder modified polyurethane adhesive and preparation method thereof

A polyurethane adhesive, powder modification technology, applied in polyurea/polyurethane adhesive, adhesive, adhesive type, etc. Resistance to plasticizer penetration and other problems, to achieve the effect of improving fastness and hydrolysis resistance, good hydrolysis resistance, and improving initial tack

Inactive Publication Date: 2016-09-07
LI NING CHINA SPORTS GOODS +2
View PDF3 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, about 95% of shoe glues on the market use chloroprene adhesives, and the amount of polyurethane is less. Neoprene adhesives have the advantages of good initial adhesion, cold bonding, and low price, but they are not resistant to plasticizer penetration. , thermoplastic rubber, PU leather and other new shoe materials have poor adhesion. In addition, benzene solvents must be used, which will cause great harm to the environment and human body. It is no longer suitable

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
  • Shoe cellulose powder modified polyurethane adhesive and preparation method thereof
  • Shoe cellulose powder modified polyurethane adhesive and preparation method thereof
  • Shoe cellulose powder modified polyurethane adhesive and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0038] Example 1. Preparation of cellulose powder modified polyurethane adhesive for shoes

[0039] (1) 120 parts by mass of diphenylmethane diisocyanate, 5 parts by mass of hemp rod core powder (particle size of 20 microns), 60 parts by mass of 1,4-butanediol-adipate copolymerized binary Alcohol (molecular weight of 1500), 330 parts by mass of 1,4-butanediol-1,6 hexanediol-adipic acid copolymer diol (molecular weight of 2000) were added to the reactor, heated to 85 ℃ for polymerization reaction 1 hour; then 30 parts by mass of isophorone diisocyanate was added to the reaction system, and a prepolymerization reaction was performed at 90° C. for 3 hours to obtain a prepolymer.

[0040] (2) Add 10.5 parts by mass of neopentyl glycol and 20 parts by mass of 1,4 butanediol as chain extenders to the prepolymer obtained in the upper step, and carry out the chain extension reaction at 50°C. When the reaction is 4 hours, the reaction The viscosity and temperature of the system no longer r...

Example Embodiment

[0042] Example 2. Performance test of cellulose powder modified polyurethane adhesive for shoes

[0043] 1. Performance test of cellulose powder modified polyurethane adhesive for shoes prepared in Example 1

[0044] The modified polyurethane adhesive prepared in Example 1 is used to prepare a composite shoe sole: that is, the modified polyurethane adhesive is used to bond the rubber outsole and the midsole. Among them, the composite sole is made of short fiber (addition not less than 3%) modified rubber (natural rubber, butadiene rubber content not less than 55%) outsole, hemp stalk core ultrafine powder (addition not less than 3%) Modified EVA foam injection midsole and thermoplastic polyurethane injection arch support frame are made by bonding superfine powder modified polyurethane glue with hemp stalk core.

[0045] The performance test results of the composite shoe sole prepared above are shown in Table 1.

[0046] Table 1 Performance test of composite sole

[0047]

[0048] From...

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 shoe cellulose powder modified polyurethane adhesive and a preparation method thereof. The shoe cellulose powder modified polyurethane adhesive is prepared from the following components in parts by mass: 150 to 200 parts of diphenylmethane diisocyanate, 20 to 50 parts of isophorone diisocyanate, 200 to 400 parts of polyester glycol, 30 to 60 parts of chain extender, 1 to 10 parts of cellulose powder, and 2000 to 4000 parts of solvent. The preparation method has the advantages that under the synergistic action of two types of active isocyanate, by adopting different types of hydroxyl raw materials, the initial viscosity, hydrolysis resistance, wet and heat aging resistance and the like of products are improved; the technology implementing is good, and the environment-friendly and non-pollution effects are realized.

Description

technical field [0001] The invention relates to an adhesive for shoes and a preparation method thereof, in particular to a cellulose powder modified polyurethane adhesive for shoes and a preparation method thereof. Background technique [0002] At present, about 95% of shoe glues on the market use chloroprene adhesives, and the amount of polyurethane is less. Neoprene adhesives have the advantages of good initial adhesion, cold bonding, and low price, but they are not resistant to plasticizer penetration. , thermoplastic rubber, PU leather and other new shoe materials have poor adhesion. In addition, benzene solvents must be used, which will cause great harm to the environment and human body. It is no longer suitable for the development of the shoe industry. Polyurethane shoe glue has excellent elasticity, Softness and flex resistance are recognized by the footwear industry. For example, the Desmocoll series products of German Bayer Company and the Pearlstick series products...

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): C09J175/04C08G18/76C08G18/75C08G18/66C08G18/64C08G18/42C08G18/12C08G18/32
CPCC09J175/04C08G18/12C08G18/4081C08G18/4202C08G18/4238C08G18/6484C08G18/755C08G18/7671C08G2170/90C08G18/3206
Inventor 郝新敏赵鹏程黄杰甘舸鞠景堂唐丽陈晓何灿玉
Owner LI NING CHINA SPORTS GOODS
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