Foaming agent comprising secondary amine salt and ethanolamine salt and application to polyurethane intermittent plate foam material

A technology of ethanolamine salt and foaming agent, applied in the field of polyurethane foaming agent, can solve the problems of uneven cell size, affecting the strength performance and thermal insulation properties of foamed materials, uneven cell distribution and the like

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 comprising secondary amine salt and ethanolamine salt and application to polyurethane intermittent plate foam material

Examples

Experimental program
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Effect test

preparation example 1

[0072] 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

[0074] 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

[0076] 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 polyurethane foaming agent comprising a secondary amine salt and an ethanolamine salt. The foaming agent comprises: 1) a first compound mixture (M1) containing an organic secondary amine salt compound with a following general formula (I): A<->[B<+>] (I), wherein B<+> is a positive mono-valent cation of an organic secondary amine B, A<-> is CO<3><2->, HCO<3><->, or a combination of CO<3><2-> and HCO<3><->; 2) a second compound mixture (M2) containing a N-monohydroxyethyl-ammonium carbonate compound of a general formula (II) and N,N'-di(hydroxyethyl)-ammonium carbonate compound of a general formula (II): (RN<+>H<3>) (N<+>H<4>)CO<3><2-> (II), or (RN<+>H<3>)<2>CO<3><2-> (III), wherein R is hydroxyethyl, and the molar ratio of the compound of the formula (II) to thecompound of the formula (III) is 1:0 to 1:2.5. The foaming agent is suitable for application to preparation of a polyurethane intermittent plate foam material.

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 polyurethane intermittent board foam material. The present invention relates to polyurethane blowing agents comprising secondary amine salts and ethanolamine salts and their use for (preparing) polyurethane intermittent 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. Th...

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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