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Blowing agent comprising tertiary amine salt and propanolamine salt and use for polyurethane refrigerator freezer foam material

A technology of propanolamine salt and foaming agent is applied in the preparation method and in the field of preparing polyurethane refrigerator freezer foam material, which can solve the problem of uneven cell size, influence on the strength performance, thermal insulation properties, and cell distribution of foamed materials. unevenness etc.

Active Publication Date: 2021-04-13
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 agent comprising tertiary amine salt and propanolamine salt and use for polyurethane refrigerator freezer foam material

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

Disclosed is a kind of polyurethane blowing agent comprising tertiary amine salt and propanol amine salt, and this blowing agent comprises: 1) comprises the first compound mixture (M1) of organic tertiary amine salt compound class with following general formula (I) ): A ‑ [B + ] p (I), where B + Is the cation of +1-valent organic tertiary amine B, A ‑ Yes: CO 3 2‑ , HCO 3 ‑ , or CO 3 2‑ with HCO 3 ‑ 2) a second compound comprising N-monohydroxypropyl-ammonium carbonate compound of general formula (II) and N,N'-di(hydroxypropyl)-ammonium carbonate compound of general formula (II) A 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 hydroxypropyl; the molar ratio of the compound of general formula (II) to the compound of general formula (III) is 1:0 to 1:2.5. The blowing agent is suitable for use in the preparation of polyurethane refrigerator freezer foam materials.

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 A novel organic ammonium salt compound with a solubilizing group, a preparation method thereof, and an application in the preparation of a foam material for a polyurethane refrigerator freezer. The present invention relates to polyurethane foaming agent comprising tertiary amine salt and propanolamine salt and its use for (preparing) polyurethane refrigerator freezer foam material [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. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J9/08C08J9/14C08G18/66C08G18/50C08G18/48C08G18/32C08G18/18C07C209/00C07C211/04C07C211/05C07C211/08C07C213/00C07C215/08C08G101/00
CPCC07C209/00C07C211/04C07C211/05C07C211/08C07C213/00C07C215/08C08G18/18C08G18/482C08G18/5027C08G18/6688C08J9/08C08J9/141C08J2203/02C08J2203/14C08J2203/204C08J2375/08C08G2110/005
Inventor 毕戈华毕玉遂
Owner SHANDONG UNIV OF TECH