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

A foaming agent and alkanolamine salt technology, applied in the field of polyurethane foaming agents, can solve the problems of uneven distribution of cells, influence on the strength performance and thermal insulation properties of foamed materials, uneven cell size, etc.

Active Publication Date: 2021-02-12
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 alcohol amine salts and their use in polyurethane continuous board foam materials

Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0071] 3kg of 40% methylamine aqueous solution (molecular weight 31) is added in a transparent quartz glass reactor, stirred and dissolved, and the reactor is sealed, then under constant stirring, the temperature is controlled between 40-65°C, and carbon dioxide is passed 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

[0073] 3kg of 70% ethylamine aqueous solution (molecular weight 45) is added in a transparent quartz glass reactor, stirred and dissolved, and the reactor is sealed, then under constant stirring, the temperature is controlled between 40-65°C, and carbon dioxide is passed 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 2 was obtained. pH≥7.5, decomposition temperature is 42°C-70°C.

preparation example 3

[0075] Add 3kg of hexylamine (molecular weight 101) and 1.6kg 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, 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 3 was obtained. pH≥7.5, decomposition temperature is 42°C-70°C.

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Abstract

Blowing agents comprising alcohol amine salts and their use in polyurethane continuous board foam materials. A polyurethane foaming agent comprising primary amine salts and alcohol amine salts is disclosed, the foaming agent comprising: 1) a first compound mixture (M1) comprising organic primary amine salt compounds having the following general formula (I) : A ‑ [B + ] p (I), where B + is the cation of a +1-valent organic primary amine B, A ‑ Yes: CO 3 2‑ , HCO 3 ‑ , or CO 3 2‑ with HCO 3 ‑ 2) comprising N-monohydroxypropyl / monohydroxyethyl-ammonium carbonate compound with general formula (II) and N,N'-bis(hydroxypropyl / hydroxyethyl) with general formula (II) base)-ammonium carbonate compound of the second compound mixture (M2): (RN + h 3 )(N + h 4 )CO 3 2‑ (II), or (RN + h 3 ) 2 CO 3 2‑ (III), in the formula, R is the combination of hydroxypropyl and hydroxyethyl; the molar ratio of the monoalcohol amine compound of the general formula (II) and the diol amine compound of the general formula (III) is 1:0 to 1 :2.5. Blowing agents are suitable for use in the preparation of polyurethane continuous board foam materials.

Description

technical field [0001] The present invention relates to organic primary amine salt compounds having an anion as a CO2 donor, a process for their preparation and use as a blowing agent, and more particularly to providing organic primary amines having not only an anion as a CO2 donor but also a primary organic 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 primary 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 raw ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J9/08C08J9/14C08G18/66C08G18/48C08G18/42C08G18/32C08G18/18C07C211/03C07C209/00C07C213/08C07C215/08C08G101/00
CPCC07C209/00C07C211/03C07C213/08C07C215/08C08G18/1825C08G18/4018C08G18/6622C08J9/08C08J9/144C08J2203/02C08J2203/142C08J2203/204C08J2375/04C08J2375/06C08J2375/08C08G2110/005
Inventor 毕戈华毕玉遂
Owner SHANDONG UNIV OF TECH
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