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Foaming agent containing secondary amine salts and propanol amine salts and application for foam material of polyurethane refrigerators and freezers

A technology of propanolamine salt and foaming agent, which is applied in the preparation method and in the field of preparing polyurethane refrigerator freezer foam materials, can solve the problems of affecting the strength performance and heat insulation properties of foam materials, uneven cell distribution, and cell size. Uneven etc.

Active Publication Date: 2019-03-05
SHANDONG UNIV OF TECH +1
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  • 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

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  • Foaming agent containing secondary amine salts and propanol amine salts and application for foam material of polyurethane refrigerators and freezers

Examples

Experimental program
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Effect test

preparation example 1

[0069] Add 3 kg 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

[0071] 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

[0073] 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.

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Abstract

The invention discloses a foaming agent containing secondary amine salts and propanol amine salts and an application for a foam material of polyurethane refrigerators and freezers, and discloses a polyurethane foaming agent containing the secondary amine salts and propanol amine salts. 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 cation of 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-monohydroxypropyl-ammonium carbonate compounds having a general formula (II) which is (RN<+>H3)(N<+>H4)CO<3><2-> and N,N'-bis(hydroxypropyl)-ammonium carbonate compounds having a general formula (III) which is (RN<+>H3)2CO<3><2->, wherein the R is a hydroxypropyl group, and a molar ratio of the compounds of the formula (II) to the compounds of the formula (III) is 1:0 to 1:2.5. The foaming agent is suitable for the preparation of a foam material of polyurethane refrigerators and freezers.

Description

technical field [0001] The present invention relates to an organic secondary amine salt compound having an anion as a CO2 donor, a process for its preparation and its use as a foaming agent, and more particularly to providing an organic secondary amine not only having an anion as a CO2 donor but also an organic secondary amine as a catalytic group A novel organic ammonium salt compound with a solubilizing group, a preparation method thereof, and an application in the preparation of a foam material for a polyurethane refrigerator freezer. The present invention relates to a polyurethane foaming agent comprising secondary amine salts and propanolamine salts and its use for (preparing) foam materials for polyurethane refrigerator freezers 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 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J9/08C08G18/48C08G18/50C08G18/18C08G101/00
CPCC08G18/18C08G18/48C08G18/482C08G18/5021C08G2101/00C08J9/08C08J2203/02C08J2375/08
Inventor 毕玉遂毕戈华
Owner SHANDONG UNIV OF TECH
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