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

Preparation method of amino silane modified urethane acrylate resin

A technology of urethane acrylate and aminosilane, which is applied in the field of preparation of silicone coupling agent modified urethane acrylate resin, can solve the problems of insufficient heat resistance and water resistance, achieve good stability, simple and feasible experiment, and improved The effect of smooth sexual process

Inactive Publication Date: 2006-11-22
SOUTH CHINA UNIV OF TECH
View PDF9 Cites 15 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The present invention uses the primary aminosilane coupling agent produced in large quantities to obtain a secondary aminosilane coupling agent with excellent performance and relatively low cost through certain modification means, and applies it to polyurethane acrylic resin to solve its heat resistance and water resistance. Insufficient shortcomings

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] (1) Add 7.02g of γ-aminopropyltriethoxysilane (KH550) into a four-necked flask, connect a thermometer and a stirring paddle, pass high-purity nitrogen gas for 20 minutes, and heat up to 60°C; 5g of γ-glycidyl etheroxypropyltrimethoxysilane was dropped, and then kept at 60°C for 3 hours to obtain the modified silane coupling agent secondary aminosilane.

[0027] (2) Add 100g of polyether polyol (N-220) and 50g of hydroxyacrylate resin (hydroxyl value: 40.5mgKOH / g) into a four-neck flask, heat up to 60°C, mix for half an hour and then heat up to 110°C , vacuumed at -0.1Mpa vacuum for 2.5 hours to remove unreacted monomers (mainly butyl acrylate and methyl methacrylate monomers) and residual moisture in the mixture until there was no distillate.

[0028] (3) Then cool down to 50°C, release the vacuum; add 30.62g of diphenylmethane diisocyanate (MDI) after 30 minutes of high-purity nitrogen gas, heat up to 80°C after the end of the exothermic peak, and degas after 3 hours o...

Embodiment 2

[0031] (1) Add 7.02g of γ-aminopropyltriethoxysilane (KH550) into a four-necked flask, connect a thermometer and a stirring paddle, pass high-purity nitrogen gas for 20 minutes, and heat up to 40°C; within 60 minutes, 5g of γ-glycidyl etheroxypropyltrimethoxysilane was dropped, and then kept at 40°C for 3 hours to obtain the modified silane coupling agent secondary aminosilane.

[0032] (2) Add 150g of polyether polyol (N-220) and 50g of hydroxyacrylate resin (hydroxyl value 40.5mgKOH / g) into a four-neck flask, heat up to 60°C, mix for half an hour and then heat up to 90°C , vacuumed at -0.1Mpa vacuum for 2.5 hours to remove unreacted monomers (mainly butyl acrylate and methyl methacrylate monomers) and residual moisture in the mixture until there was no distillate.

[0033] (3) Then cool down to 20°C and release the vacuum; add 30.76g of toluene diisocyanate (TDI) after 30 minutes of high-purity nitrogen gas, heat up to 70°C after the end of the exothermic peak, degas and dis...

Embodiment 3

[0036] (1) Add 4.5g of γ-aminopropyltriethoxysilane (KH550) into a four-necked flask, connect a thermometer and a stirring paddle, pass high-purity nitrogen gas for 20 minutes, and heat up to 50°C; within 60 minutes, 5g of γ-glycidyl etheroxypropyltrimethoxysilane was dropped, and then kept at 50°C for 2 hours to obtain the modified silane coupling agent secondary aminosilane.

[0037] (2) Add 200g of polyether polyol (N-220) and 50g of hydroxyacrylate resin (hydroxyl value 40.5mgKOH / g) into a four-neck flask, heat up to 60°C, mix for half an hour and then heat up to 110°C , vacuumed at -0.1Mpa vacuum for 2.5 hours to remove unreacted monomers (mainly butyl acrylate and methyl methacrylate monomers) and residual moisture in the mixture until there was no distillate.

[0038] (3) Then cool down to 30°C, release the vacuum; add 41.08g of toluene diisocyanate (TDI) after 30 minutes of high-purity nitrogen gas, heat up to 60°C after the end of the exothermic peak, degas and discharg...

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 polycamacrylacid ester resin making method of modified aminosilane, which comprises the following steps: dripping epoxy radical silane in the primary amino radical silane at 40-100 deg.c; finishing dripping within 15-60 min; reacting for 1-3 h at 40-100 deg.c to produce modified silane coupling agent; blending polyether polyol and hydroxyl acroleic acid resin; extracting into vacuum; adding isocyanate in the mixture at 20-50 deg.c; heating to 60-100 deg.c for 1-3h after radiating; producing endisocyanates prepolymer; dripping the modified silane coupling agent in the prepolymer for 1-3 h at 60-100 deg.c to produce the product.

Description

technical field [0001] The invention relates to a preparation method of an organosilicon coupling agent-modified polyurethane acrylate resin, in particular to a preparation method of an aminosilane-modified polyurethane acrylate resin. Background technique [0002] The silane coupling agent can form a strong and stable adhesive bond through the "molecular bridge" at the two weak adhesive interfaces, and connect two substances with different properties. The molecular structure of silane is generally expressed as follows: [0003] (RO) 3 Si-(CH 2 ) 3 -X [0004] R = alkyl (methyl, ethyl, etc.) [0005] X = organic functional group (mercapto, amino, epoxy, etc.) [0006] It can be seen from the above molecular structure that the silane coupling agent contains alkoxysilane that can undergo hydrolysis and silane polycondensation at a certain humidity, and the organic functional group X has certain compatibil...

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): C08G18/83C08G18/10C08G18/48C08G18/62C08K5/54
Inventor 修玉英王功海罗钟瑜
Owner SOUTH CHINA UNIV OF TECH
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