Blowing agents comprising tertiary amines and alcohol amine salts and their use in polyurethane continuous board foam materials

A technology of foaming agent and alcohol amine salt, which is applied in the field of polyurethane foaming agent, which can solve the problems of uneven cell size, uneven cell distribution, affecting the strength performance and thermal insulation properties of foaming materials, etc.

Active Publication Date: 2021-03-19
SHANDONG UNIV OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] 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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  • Blowing agents comprising tertiary amines and alcohol amine salts and their use in polyurethane continuous board foam materials

Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0070] 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≥7.5, decomposition temperature is 42°C-70°C.

preparation example 2

[0072] 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≥7.5, decomposition temperature is 42°C-70°C.

preparation example 3

[0074] 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≥7.5, decomposition temperature is 42°C-70°C.

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Abstract

The invention discloses a polyurethane foaming agent containing tertiary amine salts and alcohol amine salts. 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, wherein 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 / monohydroxyethyl-ammonium carbonate compounds having a general formula (II)which is (RN<+>H3)(N<+>H4)CO<3><2-> and N,N'-bis(hydroxypropyl / hydroxyethyl)-ammonium carbonate compounds having a general formula (III) which is (RN<+>H3)2CO<3><2->, wherein the R is a combination of a hydroxypropyl group and a hydroxyethyl group, and a molar ratio of the monoalcoholic amine compounds of the formula (II) to the diol amine 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 continuous slabs.

Description

technical field [0001] The present invention relates to an organic tertiary amine salt compound having an anion as a CO2 donor, a process for its preparation and its use as a blowing agent, more specifically, providing an organic tertiary amine not only having an anion as a CO2 donor but also an organic tertiary amine as a catalytic group Novel organic ammonium salt compound with solubilizing group, its preparation method and its application in the preparation of polyurethane continuous board foam material. The present invention relates to polyurethane blowing agents comprising tertiary amine salts and alcohol amine salts and their use for (preparing) polyurethane continuous board foam materials. [0002] technical background [0003] 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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J9/08C08J9/14C08G18/76C08G18/66C08G18/48C08G18/42C08G18/32C08G18/18
CPCC08G18/18C08G18/3271C08G18/3275C08G18/4018C08G18/6655C08G18/6688C08G18/7671C08J9/08C08J9/144C08J2203/142C08J2203/204C08J2375/06C08J2375/08C08G2110/0025C08G2110/005
Inventor 毕戈华毕玉遂
Owner SHANDONG UNIV OF TECH
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