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Foaming agent containing orthoformic acid alcohol amine salt and propanolamine salt and application to preparation of polyurethane refrigerator foam material

A technology of propanolamine salt and foaming agent, which is applied to the foaming agent containing orthoformic acid alcoholamine salt and propanolamine salt and used in the field of polyurethane refrigerator freezer foam materials, which can solve the uneven cell size , Uneven cell distribution, affecting the strength performance and thermal insulation properties of foamed materials, 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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  • Foaming agent containing orthoformic acid alcohol amine salt and propanolamine salt and application to preparation of polyurethane refrigerator foam material

Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0070] Add 15kg of triethyl orthoformate, 20kg of diethanolamine, and 10kg of water into the reactor, start stirring, control the pressure not higher than 0.1MPa, slowly raise the temperature under constant stirring, when the temperature rises to 80°C Temperature controlled reaction for 10 hours. After the reaction is completed, cool down to 50°C, then control the vacuum degree below 600 mmHg, remove ethanol under reduced pressure at a temperature below 50°C, and release the product after cooling down to below 40°C to obtain compound 1, pH ≥ 7.5, and decomposition temperature at 45 -70°C.

preparation example 2

[0072] Add 15kg of triethyl orthoformate, 13kg of monoethanolamine, and 7.0kg of water into the reactor, start stirring, slowly raise the temperature under constant stirring, and control the temperature below 100°C for 8 hours. After the reaction is completed, lower the temperature, then control the vacuum to be below 600 mm Hg, remove ethanol under reduced pressure at a temperature below 50°C, remove the vacuum, and release the product after cooling down to below 50°C to obtain two esters of triethyl orthoformate Hydrolyzed compound 2. pH≥7.5, decomposition temperature 45-70℃.

preparation example 3

[0074] Add 20kg of tripropyl orthoformate, 11kg of diethanolamine, and 10kg of ammonia water into the reactor, start stirring, slowly raise the temperature under constant stirring, and react at a temperature not exceeding 100°C for 8 hours. After the reaction is completed, lower the temperature, then control the vacuum to be below 600 mm Hg, remove unnecessary water under reduced pressure at a temperature below 50°C, remove the vacuum, cool down to below 40°C and release the product to obtain compound 3. pH≥7.5, decomposition temperature 45-70℃.

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Abstract

The invention discloses a polyurethane alkaline foaming agent containing an orthoformic acid alcohol amine salt and a propanolamine salt. The foaming agent comprises: 1) a first compound mixture (M1)comprising orthoformic acid alcohol amine compounds of a following general formula (I): A<->B<+> (I), wherein B<+> is a cation of an organic alcohol amine B, and A<-> is orthoformate; and 2) a secondcompound mixture (M2) comprising a 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 1:2.5. The foaming agent is suitable for use in preparation of a polyurethane refrigerator foam material.

Description

technical field [0001] The present invention relates to orthoformate alkanolamine salt compounds having an anion as a CO2 donor, a process for their preparation and use as a blowing agent, and more particularly, to provide compounds having not only an anion as a CO2 donor but also an organic alkanolamine as a catalytic group. A new type of organic ammonium salt compound with a group and 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 a polyurethane foaming agent comprising orthoformic acid alcohol amine salt and propanol amine salt and its use for (preparing) polyurethane refrigerator freezer foam material 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 ot...

Claims

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Application Information

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IPC IPC(8): C08J9/08C08J9/14C08G18/76C08G18/66C08G18/48C08G18/42C08G18/32C08G18/16C08G18/18
CPCC08G18/168C08G18/1825C08G18/3271C08G18/3275C08G18/4018C08G18/6655C08G18/6688C08G18/7671C08J9/08C08J9/144C08J2203/142C08J2203/204C08J2375/06C08J2375/08C08G2110/0025C08G2110/005
Inventor 毕戈华毕玉遂
Owner BUTIAN NEW MATERIAL TECH CO LTD
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