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Foaming agent containing secondary amine and alcohol amine salts and application for foam material of polyurethane continuous slabs

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

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 and alcohol amine salts and application for foam material of polyurethane continuous slabs

Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0069] 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

[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 and alcohol amine salts and an application for a foam material of polyurethane continuous slabs, and discloses the polyurethane foaming agent containing the secondary amine salts and alcohol 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 / 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 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 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 secondary amine salts and alcohol amine salts and their use for (preparing) polyurethane continuous board 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 importa...

Claims

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Application Information

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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
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