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Blowing agent comprising alcoholamine orthoformate and ethanolamine salt and use for polyurethane intermittent board foam material

A technology of ethanolamine salt and foaming agent, applied to the polyurethane foaming agent of ethanolamine salt and ethanolamine salt and its use in the field of polyurethane, can solve the problem of uneven distribution of cells, influence on the strength performance and thermal insulation properties of foamed materials, Problems such as uneven cell size

Active Publication Date: 2021-02-09
BUTIAN NEW MATERIAL TECH CO LTD +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 alcoholamine orthoformate and ethanolamine salt and use for polyurethane intermittent board 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

A kind of polyurethane foaming agent comprising orthoformic acid alcohol amine salt and ethanolamine salt is disclosed, and this foaming agent comprises: 1) comprises the first kind of compound mixture ( M1): A ‑ [B + ] p (I), where B + is the cation of organic alcohol amine B, A ‑ is orthoformate; 2) the second compound comprising N-monohydroxyethyl-ammonium carbonate compound with general formula (II) and N,N'-di(hydroxyethyl)-ammonium carbonate compound with general formula (II) Two compound mixtures (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 hydroxyethyl; the molar ratio of the compound of general formula (II) to the compound of general formula (III) is 1:0 to 1:2.5. Blowing agents are suitable for use in the preparation of polyurethane intermittent board foam materials.

Description

technical field [0001] The present invention relates to alcohol amine orthoformate compounds having an anion as a CO2 donor, a process for their preparation and their use as a blowing agent, more particularly, providing an alcohol amine orthoformate not only having an anion as a CO donor but also an alcohol amine orthoformate as a catalyst The novel organic ammonium salt compound of group and solubilizing group, its preparation method and its application in the preparation of polyurethane intermittent board foam material. The present invention relates to polyurethane blowing agents comprising orthoformic acid alcoholamine salts and ethanolamine salts and their use for (preparing) polyurethane intermittent 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 i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J9/08C08G18/48C08G18/42C08G18/76C08K5/521C08K5/098C08L75/08
CPCC08G18/4018C08G18/42C08G18/48C08G18/7671C08J9/08C08J2203/02C08J2203/142C08J2203/204C08J2375/08C08K5/098C08K5/521C08G2110/005
Inventor 毕戈华毕玉遂
Owner BUTIAN NEW MATERIAL TECH CO LTD
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