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Tertiary amine and alcohol amine alkaline foaming agent and application for preparing polyurethane spray foam materials

A foaming agent, alkaline technology, applied in the preparation of polyurethane spray foam materials, tertiary amine/alcoholamine alkaline foaming agent, the field of preparation of polyurethane spray foam materials, can solve the problem of uneven cell size, Affect the strength properties and thermal insulation properties of foamed materials, uneven distribution of cells, 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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  • Tertiary amine and alcohol amine alkaline foaming agent and application for preparing polyurethane spray foam materials

Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0069] Add 3kg of trimethylamine (molecular weight 59) and 3kg of water into a transparent quartz glass reactor, stir evenly, seal the reactor, and then control the temperature between 40-65°C under constant stirring, and pass carbon dioxide into the In the reactor, control the pressure not to be higher than 0.3MPa, and control the temperature for 10 hours to react. After cooling down to below 40°C, release the pressure and release the product. Compound 1 was obtained. pH≥7.6, decomposition temperature is 42°C-70°C.

preparation example 2

[0071] Add 3kg of triethylamine (molecular weight 101) and 3.5kg of water into a transparent quartz glass reactor, stir evenly, seal the reactor, and then control the temperature between 40-65°C under constant stirring, and pass carbon dioxide through Put it into the reactor, control the pressure not higher than 0.3MPa, control the temperature and react for 10 hours, let off the pressure and release the product after cooling down to below 40°C. Compound 2 was obtained. pH≥7.6, decomposition temperature is 42°C-70°C.

preparation example 3

[0073] Add 3kg of dimethylethylamine (molecular weight 73) and 2.5kg of water into a transparent quartz glass reactor, stir evenly, seal the reactor, and then control the temperature between 40-65°C under constant stirring , put carbon dioxide into the reactor, control the pressure not higher than 0.3MPa, control the temperature and react for 10 hours, release the pressure and release the product after cooling down to below 40°C. Compound 3 was obtained. pH≥7.6, decomposition temperature is 42°C-70°C.

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Abstract

The invention discloses a polyurethane alkaline foaming agent containing tertiary amine salts and propanol amine 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 tertiary amine salt compounds having a general formula (I) which is A<->[B<+>]p, the B<+> is a cation of organic tertiary 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-ammoniumcarbonate 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 1:1.0. The foaming agent is suitable for the preparation of polyurethane spray 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 anion of the donor and the application of the new organic ammonium salt compound with the organic tertiary amine as the catalytic group and the solubilizing group in the preparation of the polyurethane spray foam material. More specifically, it relates to tertiary amine / alcohol amine basic blowing agents and their use for the preparation of polyurethane spray 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 chlorofluorocarbons ex...

Claims

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Application Information

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IPC IPC(8): C08J9/08C08G18/48C08G18/42C08G18/18C08G101/00
CPCC08G18/18C08G18/4018C08G18/42C08G18/48C08G2101/00C08J9/08C08J2203/02C08J2375/08
Inventor 毕玉遂毕戈华
Owner SHANDONG UNIV OF TECH
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