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Alkaline foaming agent containing polyamine and alcohol amine and use for preparing polyurethane spray foam material

A foaming agent, basic technology, applied in the field of basic polyamine alcohol amine foaming agent and for the preparation of polyurethane spray foam materials, can solve the problem of affecting the strength performance, thermal insulation properties and cell distribution of foam materials Inhomogeneity, uneven cell size, etc.

Active Publication Date: 2019-03-05
BUTIAN NEW MATERIAL TECH CO LTD +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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  • Alkaline foaming agent containing polyamine and alcohol amine and use for preparing polyurethane spray foam material

Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0071] Add 3kg of 40% ethylenediamine aqueous solution (molecular weight 60) 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

[0073] The 50% diethylenetriamine aqueous solution (molecular weight 103) of 3kg is joined in the transparent quartz glass reactor, stirs to dissolve, seals the reactor, then under constant stirring, controls the temperature between 40-65 ℃, will 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 2 was obtained. pH≥7.5, decomposition temperature is 42°C-70°C.

preparation example 3

[0075] Add 3kg of triethylenetetramine (molecular weight 146) and 1.8kg of water into a transparent quartz glass reactor, stir to dissolve, seal the reactor, and then control the temperature between 40-65°C under constant stirring, Pass 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 an alkaline foaming agent containing a polyamine salt and a propanolamine salt. The alkaline foaming agent has a pH value of between 8.5 and 9.5, and the foaming agent comprises: 1) a first compound mixture (M1) comprising organic polyamine salt compounds of a following general formula (I): A<->B<+> (I), wherein B<+> is a cation of an organic polyamine B, and A<-> is CO<3><2->, HCO<3><->, or a combination of CO<3><2-> and HCO<3><->; and 2) a second compound mixture(M2) comprising an N-monohydroxypropyl-ammonium carbonate compound of a general formula (II) and an N,N'-di(hydroxypropyl)-ammonium carbonate compound of a general formula (III): (RN<+>H<3>)(N<+>H<4>)CO<3><2-> (II), or (RN<+>H<3>)<2>CO<3><2-> (III), wherein R is hydroxypropyl, and the molar ratio of the compound of the general formula (II) to the compound of the general formula (III) is from 1:0 to 1:1.0. The foaming agent is suitable for use in the preparation of a polyurethane spray foam material.

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 of the organic polyamine as the catalytic group and the solubilizing group in the preparation of the polyurethane spray foam material. More particularly, it relates to basic alkanolamine 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 except cyclopentane. Beca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J9/08C08G18/18C08G18/48C08G18/42C08G101/00
CPCC08G18/1808C08G18/4018C08G2101/00C08J9/08C08J2375/04
Inventor 毕戈华毕玉遂
Owner BUTIAN NEW MATERIAL TECH CO LTD
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