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Organic alcohol amine salt compound and its use as foaming agent

A foaming agent and compound technology, which is applied in the field of organic alcohol amine salt compounds and their use as foaming agents, can solve the problem of affecting the strength performance and thermal insulation properties of foaming materials, uneven cell distribution, and uneven cell size. Uniformity and other issues

Active Publication Date: 2020-08-18
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 (such as water) in the prior art cannot be dispersed into the foaming composition at the molecular level, thereby causing uneven distribution of cells and non-uniform size of cells, which ultimately affects the foaming properties of the foaming material. Strength properties and thermal insulation properties

Method used

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  • Organic alcohol amine salt compound and its use as foaming agent
  • Organic alcohol amine salt compound and its use as foaming agent
  • Organic alcohol amine salt compound and its use as foaming agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment A-1

[0281]The water of 1.4 tons of ammonium carbamate (molecular weight 78.07), 1.2 tons is joined in the stainless steel autoclave with cooling water jacket (referred to as reactor in other embodiments below), start agitator, make carbamic acid Ammonium is dissolved, and the reactor is purged with nitrogen, then the reactor is closed and stirred, and a total of 1.90 tons of propylene oxide (molecular weight 58.08, boiling point 34 ° C) is introduced, and the feed rate of propylene oxide is controlled so as to control the pressure in the reactor Not higher than 0.6MPa, slowly raise the temperature under constant stirring, control the temperature below 70°C and react for 15 hours, the reaction is completed, slowly lower the temperature to 50°C and control the vacuum degree below 600 mmHg (preferably lower than 500mmHg) Slowly remove unnecessary water (for example to reach a water content of less than 20wt%) and unreacted propylene oxide, then release the vacuum, release the reactant...

Embodiment A-2

[0286] 1 kg of hydrazine carbamate and 0.9 kg of water were added to the reactor, dissolved under stirring for 30 minutes (allowing the presence of a small amount of undissolved hydrazine carbamate), the reactor was purged with nitrogen, and then 1.8 kg of cyclic Put oxypropane into a transparent quartz glass reactor, start stirring, slowly raise the temperature under constant stirring, control the temperature between 50-70°C, and carry out the reaction under the condition that the pressure is not higher than 0.6MPa. When the reaction lasts for about 2 hours There is a wonderful phenomenon left and right: the turbid and opaque mixture instantly turns into a transparent or clear solution, and the reaction continues for 5 hours, and then the temperature is lowered to 50°C, and part of the water and unreacted epoxy are released under a vacuum of 600 mm Hg. Propane, the product is released after cooling down to below 40°C. The reaction time is sufficient to ensure that the reactio...

Embodiment A-3

[0288] Add 1.4 tons of ammonium carbamate, 0.8 tons of ethylene glycol, and 1.0 tons of water into a stainless steel reactor with a cooling jacket, start stirring, so that the ammonium carbamate is slowly dissolved (not necessarily completely dissolved), and the reaction After the system is treated and protected by nitrogen gas, it is heated up, the temperature is controlled at 45-70°C, and the pressure is controlled not to exceed 0.6MPa. Then, a total of 1.25 tons of ethylene oxide (molecular weight 44.05) is slowly added in batches, and the control is performed after the addition is completed. The temperature is 45-70°C, the pressure is below 0.6MPa and the reaction is stirred for 5 hours, then the temperature is lowered to 50°C, and unnecessary water (such as reaching a water content lower than 30wt%) and unreacted epoxy is removed under reduced pressure at 600mHg Ethane, the product is released after cooling down to below 40°C, and compound A-3 is obtained. The viscosity i...

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Abstract

The invention discloses an organic alcohol amine salt compound with a general formula (I) of A<n>[B<m+>]p. In the formula (I), A<n> is a negative ion which serves as a CO2 donor and has -n valence, and n is equal to 1, 2 or 3; B<m+> is or includes ammonium ion, hydrazine ion and / or organic amine B positive ion; m is equal to 1 to 10; p is greater than 0 and less than or equal to n / m; the A<n> is selected from one or more of the following negative ions: (a) carbamate or hydrazino-formate; (b) carbonate; (c) formate; (d) bicarbonate radical; (e) organic monocarbonate; (f) organic polycarbamate; (g) original formate; or (h) organic polycarbonate. The compound with the general formula (I) contains 25-95 wt% of salt of alcohol monamine and salt of alcohol diamine. The compounds can serve as polyurethane foaming agents, and most of the foaming agents can serve as polystyrene foaming agents or polyvinyl chloride foaming agents.

Description

technical field [0001] The present invention relates to having as CO 2 Anionic organic alcohol amine salt compounds of the donor and their use as blowing agents, more specifically, providing not only CO 2 The anion of the donor and has a hydroxyalkyl or hydroxyalkylalkoxy group as a solubilizing group or a C2-C14 hydrocarbon group (such as 2-chloroethyl, 3-chloropropyl or phenethyl) as a solubilizing group A new type of organic amine salt compound, and its application in foaming materials such as polyurethane foam or PVC foaming material or polystyrene foaming. [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 material in the production of rigid polyurethane foam is the blowing agent. At present, these blowing agents are chlorofluorocarbon...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J9/08C08L75/04C08L25/06C08L27/06
CPCC08J9/08C08J2203/02C08J2325/06C08J2327/06C08J2375/04
Inventor 毕戈华毕玉遂
Owner SHANDONG UNIV OF TECH
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