CN111471170A - Preparation process of environment-friendly polyurethane all-water composite material - Google Patents
Preparation process of environment-friendly polyurethane all-water composite material Download PDFInfo
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- CN111471170A CN111471170A CN202010323229.4A CN202010323229A CN111471170A CN 111471170 A CN111471170 A CN 111471170A CN 202010323229 A CN202010323229 A CN 202010323229A CN 111471170 A CN111471170 A CN 111471170A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
- C08G65/26—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds
- C08G65/2603—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds the other compounds containing oxygen
- C08G65/2606—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds the other compounds containing oxygen containing hydroxyl groups
- C08G65/2609—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds the other compounds containing oxygen containing hydroxyl groups containing aliphatic hydroxyl groups
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/50—Polyethers having heteroatoms other than oxygen
- C08G18/5021—Polyethers having heteroatoms other than oxygen having nitrogen
- C08G18/5024—Polyethers having heteroatoms other than oxygen having nitrogen containing primary and/or secondary amino groups
- C08G18/5027—Polyethers having heteroatoms other than oxygen having nitrogen containing primary and/or secondary amino groups directly linked to carbocyclic groups
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
- C08G65/26—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds
- C08G65/2618—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds the other compounds containing nitrogen
- C08G65/2621—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds the other compounds containing nitrogen containing amine groups
- C08G65/2624—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds the other compounds containing nitrogen containing amine groups containing aliphatic amine groups
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
- C08G65/26—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds
- C08G65/2618—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds the other compounds containing nitrogen
- C08G65/2621—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds the other compounds containing nitrogen containing amine groups
- C08G65/2627—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds the other compounds containing nitrogen containing amine groups containing aromatic or arylaliphatic amine groups
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/32—Phosphorus-containing compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/05—Alcohols; Metal alcoholates
- C08K5/053—Polyhydroxylic alcohols
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/34—Heterocyclic compounds having nitrogen in the ring
- C08K5/3467—Heterocyclic compounds having nitrogen in the ring having more than two nitrogen atoms in the ring
- C08K5/3477—Six-membered rings
- C08K5/3492—Triazines
- C08K5/34922—Melamine; Derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2101/00—Manufacture of cellular products
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/32—Phosphorus-containing compounds
- C08K2003/321—Phosphates
- C08K2003/322—Ammonium phosphate
- C08K2003/323—Ammonium polyphosphate
Abstract
The invention belongs to the technical field of polyurethane all-water combined materials, and particularly discloses a preparation process of an environment-friendly polyurethane all-water combined material, which comprises the following steps of S1, preparing raw materials, wherein the raw materials comprise the following raw materials in parts by weight: 15-25 parts of cane sugar, 5-15 parts of glycerol, 4-10 parts of methyl o-phenylenediamine, 3-8 parts of micromolecular dihydric alcohol or alcohol amine, 0.6-1.8 parts of alkaline catalyst, 15-25 parts of phosphoric acid, 1-5 parts of diester phosphate, 30-50 parts of propylene oxide, 1-5 parts of water and 0.5-1.3 parts of flame retardant. The invention ensures the high strength and excellent size stability of polyether polyol by using sucrose with higher functionality as a main initiator, and has lower hydroxyl value, and the polyurethane foam substrate prepared by using the sucrose has good bonding property.
Description
Technical Field
The invention relates to the technical field of polyurethane all-water combined materials, in particular to a preparation process of an environment-friendly polyurethane all-water combined material.
Background
The polyurethane rigid foam can be widely applied to the industries of heat preservation, refrigeration and construction with excellent performance, but with the wide expansion of the application range, the negative influence on the environment can give people a warning clock. The polyurethane spray coating is mainly applied to the building heat insulation industry, and the adopted foaming agents mainly comprise HCFC-141b and water. HCFC and other foaming agents are all freon foaming agents, the use of freon can consume the atmospheric ozone layer, cause the destruction to the atmospheric ozone layer, lead to ultraviolet irradiation enhancement and threaten the survival of human beings and other terrestrial organisms, and is one of the most serious environmental problems facing human beings at present.
The existing polyurethane all-water combined material is still not good enough in flame retardant efficiency, a flame retardant is easy to oxidize and decompose under a high-temperature environment, so that the flame retardant is ineffective, the flame retardant time is short, the existing polyurethane all-water combined material is poor in environmental protection, and the atmospheric ozone layer is easy to damage.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a preparation process of an environment-friendly polyurethane all-water composite material.
In order to achieve the purpose, the invention adopts the following technical scheme:
a preparation process of an environment-friendly polyurethane all-water combined material, which comprises the following steps,
s1, preparing raw materials, wherein the raw materials comprise the following raw materials in parts by weight: 15-25 parts of cane sugar, 5-15 parts of glycerol, 4-10 parts of methyl o-phenylenediamine, 3-8 parts of micromolecular dihydric alcohol or alcohol amine, 0.6-1.8 parts of alkaline catalyst, 15-25 parts of phosphoric acid, 1-5 parts of diester phosphate, 30-50 parts of propylene oxide, 1-5 parts of water and 0.5-1.3 parts of flame retardant;
s2, putting the cane sugar, the glycerol, the methyl o-phenylenediamine, the micromolecule dihydric alcohol or alcohol amine and the alkaline catalyst in parts by weight into a reaction tank for reaction, controlling the reaction temperature at 50-100 ℃ and reacting for 6-8 hours to obtain a polyhydroxy mixture;
s3, adding the epoxypropane, the water and the fire retardant in parts by weight into the solution prepared in the S2, reacting for 4-5 hours at the temperature of 140 ℃ and 160 ℃, and fully stirring to fully react to obtain the environment-friendly polyurethane full-water combined material;
s4, adding phosphoric acid and diester phosphate into the environment-friendly polyurethane total water composite material, uniformly mixing, reacting for 5-7 hours at 80-110 ℃, and filtering to obtain the environment-friendly polyurethane total water composite material.
Preferably, in S1, the raw materials are prepared from the following raw materials in parts by weight: 15 parts of cane sugar, 5 parts of glycerol, 4 parts of methyl o-phenylenediamine, 3 parts of micromolecular dihydric alcohol or alcohol amine, 0.6 part of alkaline catalyst, 15 parts of phosphoric acid, 1 part of diester phosphate, 30 parts of propylene oxide, 1 part of water and 0.5 part of flame retardant.
Preferably, in S1, the raw materials are prepared from the following raw materials in parts by weight: 20 parts of cane sugar, 10 parts of glycerol, 7 parts of methyl o-phenylenediamine, 5.5 parts of micromolecular dihydric alcohol or alcohol amine, 1.2 parts of alkaline catalyst, 21 parts of phosphoric acid, 3.5 parts of diester phosphate, 42 parts of propylene oxide, 3.2 parts of water and 0.9 part of flame retardant.
Preferably, in S1, the raw materials are prepared from the following raw materials in parts by weight: 25 parts of cane sugar, 15 parts of glycerol, 10 parts of methyl o-phenylenediamine, 8 parts of micromolecular dihydric alcohol or alcohol amine, 1.8 parts of alkaline catalyst, 25 parts of phosphoric acid, 5 parts of diester phosphate, 50 parts of propylene oxide, 5 parts of water and 1.3 parts of flame retardant.
Preferably, the small-molecule diol or alcohol amine is one of ethylene glycol, diethylene glycol, propylene glycol, dipropylene glycol, ethanolamine and diethanolamine.
Preferably, the alkaline catalyst is one or two of potassium hydroxide, sodium hydroxide and sodium ethoxide.
Preferably, the phosphoric acid diester is one or two of dimethyl phosphate, diethyl phosphate and dipropyl phosphate.
Preferably, the flame retardant is ammonium polyphosphate, pentaerythritol and melamine according to a mass ratio of 4-6: 1-2: 1.
Compared with the prior art, the invention has the beneficial effects that: the sucrose with higher functionality is used as the main initiator, so that the high strength and excellent dimensional stability of the polyether polyol are ensured, the hydroxyl value is lower, the bonding property of the polyurethane foam substrate prepared by using the sucrose is good, propylene oxide is added in the preparation process, and the propylene oxide is added at a lower temperature to smoothly activate the polymerization reaction, so that the generation of high-temperature reaction byproducts is avoided, the stability of the polyether polyol synthesis index is more facilitated, and the performances of the prepared polyurethane foam are more excellent. Due to the addition of the special flame retardant, the flame retardant contains alcohols, so that a good flame retardant effect can be generated, the structure of the flame retardant is more stable, the flame retardant can exist well and stably at high temperature, the influence of high temperature on the flame retardant is avoided, and the service life of the flame retardant is prolonged.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments.
Example one
A preparation process of an environment-friendly polyurethane all-water combined material, which comprises the following steps,
s1, preparing raw materials, wherein the raw materials comprise the following raw materials in parts by weight: 15 parts of cane sugar, 5 parts of glycerol, 4 parts of methyl o-phenylenediamine, 3 parts of micromolecular dihydric alcohol or alcohol amine, 0.6 part of alkaline catalyst, 15 parts of phosphoric acid, 1 part of diester phosphate, 30 parts of propylene oxide, 1 part of water and 0.5 part of flame retardant;
s2, putting the cane sugar, the glycerol, the methyl o-phenylenediamine, the micromolecule dihydric alcohol or alcohol amine and the alkaline catalyst in parts by weight into a reaction tank for reaction, controlling the reaction temperature at 50 ℃ and reacting for 6 hours to obtain a polyhydroxy mixture;
s3, adding the epoxypropane, the water and the flame retardant in parts by weight into the solution prepared in the S2, reacting for 4 hours at the temperature of 140 ℃, and fully stirring to fully react to obtain the environment-friendly polyurethane all-water combined material;
and S4, adding phosphoric acid and diester phosphate into the environment-friendly polyurethane full-water combined material, uniformly mixing, reacting for 5 hours at 80 ℃, and filtering to obtain the environment-friendly polyurethane full-water combined material.
Example two
A preparation process of an environment-friendly polyurethane all-water combined material, which comprises the following steps,
s1, preparing raw materials, wherein the raw materials comprise the following raw materials in parts by weight: 20 parts of cane sugar, 10 parts of glycerol, 7 parts of methyl o-phenylenediamine, 5.5 parts of micromolecular dihydric alcohol or alcohol amine, 1.2 parts of alkaline catalyst, 21 parts of phosphoric acid, 3.5 parts of diester phosphate, 42 parts of propylene oxide, 3.2 parts of water and 0.9 part of flame retardant;
s2, putting the cane sugar, the glycerol, the methyl o-phenylenediamine, the small molecular dihydric alcohol or the alcohol amine and the alkaline catalyst in parts by weight into a reaction tank for reaction, controlling the reaction temperature at 75 ℃ and reacting for 7 hours to obtain a polyhydroxy mixture;
s3, adding the epoxypropane, the water and the flame retardant in parts by weight into the solution prepared in the S2, reacting for 4.5 hours at 150 ℃, and fully stirring to fully react to obtain the environment-friendly polyurethane full-water combined material;
and S4, adding phosphoric acid and diester phosphate into the environment-friendly polyurethane full-water combined material, uniformly mixing, reacting for 6 hours at 90 ℃, and filtering to obtain the environment-friendly polyurethane full-water combined material.
EXAMPLE III
A preparation process of an environment-friendly polyurethane all-water combined material, which comprises the following steps,
s1, preparing raw materials, wherein the raw materials comprise the following raw materials in parts by weight: 25 parts of cane sugar, 15 parts of glycerol, 10 parts of methyl o-phenylenediamine, 8 parts of micromolecular dihydric alcohol or alcohol amine, 1.8 parts of alkaline catalyst, 25 parts of phosphoric acid, 5 parts of diester phosphate, 50 parts of propylene oxide, 5 parts of water and 1.3 parts of flame retardant;
s2, putting the cane sugar, the glycerol, the methyl o-phenylenediamine, the small molecular dihydric alcohol or the alcohol amine and the alkaline catalyst in parts by weight into a reaction tank for reaction, controlling the reaction temperature at 100 ℃ and reacting for 8 hours to obtain a polyhydroxy mixture;
s3, adding the epoxypropane, the water and the flame retardant in parts by weight into the solution prepared in the S2, reacting for 5 hours at 160 ℃, and fully stirring to fully react to obtain the environment-friendly polyurethane full-water combined material;
s4, adding phosphoric acid and diester phosphate into the environment-friendly polyurethane full-water combined material, uniformly mixing, reacting for 7 hours at 110 ℃, and filtering to obtain the environment-friendly polyurethane full-water combined material.
The product index of the polyurethane all-water composite material is as follows:
the reaction characteristics of the polyurethane composite material after mixing with PAPI (polymethylene polyphenyl polyisocyanate) are as follows:
the polyurethane composition is mixed with PAPI (polymethylene polyphenyl polyisocyanate) to generate the molding property of foam:
according to the invention, the sucrose with higher functionality is used as the main initiator, so that the high strength and excellent dimensional stability of the polyether polyol are ensured, and the prepared polyurethane foam substrate has a lower hydroxyl value, the bonding performance of the polyurethane foam substrate is good, the propylene oxide is added in the preparation process, and the propylene oxide is added at a lower temperature to smoothly activate the polymerization reaction, so that the generation of a high-temperature reaction by-product is avoided, the stability of the polyether polyol synthesis index is more facilitated, and the performances of the prepared polyurethane foam are more excellent. Due to the addition of the special flame retardant, the flame retardant contains alcohols, so that a good flame retardant effect can be generated, the structure of the flame retardant is more stable, the flame retardant can exist well and stably at high temperature, the influence of high temperature on the flame retardant is avoided, and the service life of the flame retardant is prolonged.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. A preparation process of an environment-friendly polyurethane all-water combined material is characterized by comprising the following steps of,
s1, preparing raw materials, wherein the raw materials comprise the following raw materials in parts by weight: 15-25 parts of cane sugar, 5-15 parts of glycerol, 4-10 parts of methyl o-phenylenediamine, 3-8 parts of micromolecular dihydric alcohol or alcohol amine, 0.6-1.8 parts of alkaline catalyst, 15-25 parts of phosphoric acid, 1-5 parts of diester phosphate, 30-50 parts of propylene oxide, 1-5 parts of water and 0.5-1.3 parts of flame retardant;
s2, putting the cane sugar, the glycerol, the methyl o-phenylenediamine, the micromolecule dihydric alcohol or alcohol amine and the alkaline catalyst in parts by weight into a reaction tank for reaction, controlling the reaction temperature at 50-100 ℃ and reacting for 6-8 hours to obtain a polyhydroxy mixture;
s3, adding the epoxypropane, the water and the fire retardant in parts by weight into the solution prepared in the S2, reacting for 4-5 hours at the temperature of 140 ℃ and 160 ℃, and fully stirring to fully react to obtain the environment-friendly polyurethane full-water combined material;
s4, adding phosphoric acid and diester phosphate into the environment-friendly polyurethane total water composite material, uniformly mixing, reacting for 5-7 hours at 80-110 ℃, and filtering to obtain the environment-friendly polyurethane total water composite material.
2. The preparation process of the environment-friendly polyurethane all-water composite material according to claim 1, wherein in the step S1, raw materials are prepared, and the raw materials comprise the following raw materials in parts by weight: 15 parts of cane sugar, 5 parts of glycerol, 4 parts of methyl o-phenylenediamine, 3 parts of micromolecular dihydric alcohol or alcohol amine, 0.6 part of alkaline catalyst, 15 parts of phosphoric acid, 1 part of diester phosphate, 30 parts of propylene oxide, 1 part of water and 0.5 part of flame retardant.
3. The preparation process of the environment-friendly polyurethane all-water composite material according to claim 1, wherein in the step S1, raw materials are prepared, and the raw materials comprise the following raw materials in parts by weight: 20 parts of cane sugar, 10 parts of glycerol, 7 parts of methyl o-phenylenediamine, 5.5 parts of micromolecular dihydric alcohol or alcohol amine, 1.2 parts of alkaline catalyst, 21 parts of phosphoric acid, 3.5 parts of diester phosphate, 42 parts of propylene oxide, 3.2 parts of water and 0.9 part of flame retardant.
4. The preparation process of the environment-friendly polyurethane all-water composite material according to claim 1, wherein in the step S1, raw materials are prepared, and the raw materials comprise the following raw materials in parts by weight: 25 parts of cane sugar, 15 parts of glycerol, 10 parts of methyl o-phenylenediamine, 8 parts of micromolecular dihydric alcohol or alcohol amine, 1.8 parts of alkaline catalyst, 25 parts of phosphoric acid, 5 parts of diester phosphate, 50 parts of propylene oxide, 5 parts of water and 1.3 parts of flame retardant.
5. The preparation process of the environment-friendly polyurethane all-water composition according to claim 1, wherein the small-molecular diol or alcohol amine is one of ethylene glycol, diethylene glycol, propylene glycol, dipropylene glycol, ethanolamine, and diethanolamine.
6. The preparation process of the environment-friendly polyurethane all-water composition material according to claim 1, wherein the alkaline catalyst is one or two of potassium hydroxide, sodium hydroxide and sodium ethoxide.
7. The preparation process of the environment-friendly polyurethane all-water composition according to claim 1, wherein the phosphoric acid diester is one or two of dimethyl phosphate, diethyl phosphate and dipropyl phosphate.
8. The preparation process of the environment-friendly polyurethane all-water composite material according to claim 1, wherein the flame retardant is ammonium polyphosphate, pentaerythritol and melamine according to a mass ratio of 4-6: 1-2: 1.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3442888A (en) * | 1962-05-17 | 1969-05-06 | Allied Chem | Sucrose - glycerol - alkyleneoxide polyol compositions and process for preparing same |
| CN105315450A (en) * | 2015-11-25 | 2016-02-10 | 山东一诺威新材料有限公司 | Preparation method of polyether polyol used for total-moisture rigid polyurethane foam |
| CN106008951A (en) * | 2016-07-01 | 2016-10-12 | 句容宁武新材料股份有限公司 | Method for preparing bio-based flame-retardant polyether glycol by virtue of epoxidized soybean oil |
| CN110643030A (en) * | 2019-10-21 | 2020-01-03 | 滨化集团股份有限公司 | Preparation method of hard foam flame-retardant polyether polyol for all-water foaming |
-
2020
- 2020-04-22 CN CN202010323229.4A patent/CN111471170A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3442888A (en) * | 1962-05-17 | 1969-05-06 | Allied Chem | Sucrose - glycerol - alkyleneoxide polyol compositions and process for preparing same |
| CN105315450A (en) * | 2015-11-25 | 2016-02-10 | 山东一诺威新材料有限公司 | Preparation method of polyether polyol used for total-moisture rigid polyurethane foam |
| CN106008951A (en) * | 2016-07-01 | 2016-10-12 | 句容宁武新材料股份有限公司 | Method for preparing bio-based flame-retardant polyether glycol by virtue of epoxidized soybean oil |
| CN110643030A (en) * | 2019-10-21 | 2020-01-03 | 滨化集团股份有限公司 | Preparation method of hard foam flame-retardant polyether polyol for all-water foaming |
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