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

Secondary amine and ethanolamine alkaline foaming agent and application for preparing polyurethane solar foam materials

A technology of foaming agent and ethanolamine salt, which is applied in secondary amine and ethanolamine basic foaming agent and used in the preparation of polyurethane solar foam materials, which can solve the problems affecting the strength performance, thermal insulation properties and cell size of foam materials Inhomogeneity, uneven cell distribution, etc.

Active Publication Date: 2019-03-05
SHANDONG UNIV OF TECH +1
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In short, the foaming agent in the prior art cannot be dispersed into the foaming composition at the molecular level, resulting in uneven distribution of cells and uneven cell size, which ultimately affects the strength performance and thermal insulation of the foamed material nature

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
  • Secondary amine and ethanolamine alkaline foaming agent and application for preparing polyurethane solar foam materials

Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0071] Add 3kg of 40% dimethylamine aqueous solution (molecular weight 45) into a transparent quartz glass reactor, stir to dissolve, seal the reactor, then under constant stirring, control the temperature between 40-65 ° C, and pass carbon dioxide into In the reactor, control the pressure not to be higher than 0.3MPa, control the temperature and react for 10 hours, release the pressure and release the product after the temperature is lowered to below 40°C. Compound 1 was obtained. pH≥7.5, decomposition temperature is 42°C-70°C.

preparation example 2

[0073] Add 3kg of 30% diethylamine aqueous solution (molecular weight 73) into a transparent quartz glass reactor, stir to dissolve, seal the reactor, then under constant stirring, control the temperature between 40-65 ° C, and pass carbon dioxide into In the reactor, control the pressure not to be higher than 0.3MPa, control the temperature and react for 10 hours, release the pressure and release the product after the temperature is lowered to below 40°C. Compound 2 was obtained. pH≥7.5, decomposition temperature is 42°C-70°C.

preparation example 3

[0075] Add 3kg of dipropylamine (molecular weight 101) and 1.6kg of water into a transparent quartz glass reactor, stir to dissolve, seal the reactor, and then under constant stirring, control the temperature between 40-65°C. Pass carbon dioxide into the reactor, control the pressure not to be higher than 0.3 MPa, and control the temperature for 10 hours to react. After cooling down to below 40°C, release the pressure and release the product. Compound 3 was obtained. pH≥7.5, decomposition temperature is 42°C-70°C.

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
Decomposition temperatureaaaaaaaaaa
Viscosityaaaaaaaaaa
Decomposition temperatureaaaaaaaaaa
Login to View More

Abstract

The invention discloses a polyurethane alkaline foaming agent containing secondary amine salts and ethanolamine salts. A pH value of the alkaline foaming agent is between 8.5 and 9.5. The foaming agent comprises the following components: 1) a first compound mixture (M1) containing organic secondary amine salt compounds having a general formula (I) which is A<->[B<+>]p, wherein the B<+> is a cationof organic secondary amine B with +1 valence and the A<-> is CO<3><2->, HCO<3><-> or a combination of the CO<3><2-> and HCO<3><->; and 2) a second compound mixture (M2) containing N-monohydroxyethyl-ammonium carbonate compounds having a general formula (II) which is (RN<+>H3)(N<+>H4)CO<3><2-> and N,N'-bis(hydroxyethyl)-ammonium carbonate compounds having a general formula (III) which is (RN<+>H3)2CO<3><2->, wherein the R is a hydroxyethyl group, and a molar ratio of the compounds of the formula (II) to the compounds of the formula (III) is 1:0 to 1:1.0. The foaming agent is suitable for the preparation of polyurethane solar foam materials.

Description

technical field [0001] The present invention relates to having as CO 2 The use of organic amine salt compounds of donor anions as blowing agents, more specifically, to provide not only CO 2 The application of the novel organic ammonium salt compound with the anion of the donor and the organic secondary amine as the catalytic group and the solubilizing group in the preparation of the polyurethane solar foam material. More particularly, it relates to secondary amine and ethanolamine basic blowing agents and their use for the preparation of polyurethane solar foam materials. technical background [0002] As a new polymer material, polyurethane rigid foam is light in weight, high in strength and has extremely low thermal conductivity. Automobiles, refrigerators and freezers and other household appliances and other industries. The most important raw material in the production of rigid polyurethane foam is the blowing agent. At present, these blowing agents are chlorofluorocar...

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): C08J9/08C08G18/18C08G18/48C08G18/42C08G101/00
CPCC08G18/18C08G18/4018C08G2101/00C08J9/08C08J2375/04
Inventor 毕玉遂毕戈华
Owner SHANDONG 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

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