CN113912815A - Flame-retardant rigid polyurethane foam - Google Patents

Flame-retardant rigid polyurethane foam Download PDF

Info

Publication number
CN113912815A
CN113912815A CN202111304139.1A CN202111304139A CN113912815A CN 113912815 A CN113912815 A CN 113912815A CN 202111304139 A CN202111304139 A CN 202111304139A CN 113912815 A CN113912815 A CN 113912815A
Authority
CN
China
Prior art keywords
parts
flame
rigid polyurethane
polyurethane foam
retardant rigid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202111304139.1A
Other languages
Chinese (zh)
Inventor
潘飞
李俊
符泽卫
彭巨擘
鲍庆煌
马殿普
袁英杰
覃德清
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
R & D Center Of Yunnan Tin Industry Group Holdings Co ltd
Original Assignee
R & D Center Of Yunnan Tin Industry Group Holdings Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by R & D Center Of Yunnan Tin Industry Group Holdings Co ltd filed Critical R & D Center Of Yunnan Tin Industry Group Holdings Co ltd
Priority to CN202111304139.1A priority Critical patent/CN113912815A/en
Publication of CN113912815A publication Critical patent/CN113912815A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
    • C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
    • C08G18/6666—Compounds of group C08G18/48 or C08G18/52
    • 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
    • C08G18/30—Low-molecular-weight compounds
    • C08G18/38—Low-molecular-weight compounds having heteroatoms other than oxygen
    • C08G18/3819—Low-molecular-weight compounds having heteroatoms other than oxygen having nitrogen
    • 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
    • C08G18/4829—Polyethers containing at least three hydroxy groups
    • 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
    • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72—Polyisocyanates or polyisothiocyanates
    • C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
    • C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
    • C08G18/7657—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings
    • C08G18/7664—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
    • C08J9/125—Water, e.g. hydrated salts
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
    • C08J9/14—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent organic
    • C08J9/143—Halogen containing compounds
    • C08J9/144—Halogen containing compounds containing carbon, halogen and hydrogen only
    • 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
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • 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
    • C08K5/49—Phosphorus-containing compounds
    • C08K5/51—Phosphorus bound to oxygen
    • C08K5/53—Phosphorus bound to oxygen bound to oxygen and to carbon only
    • C08K5/5313—Phosphinic compounds, e.g. R2=P(:O)OR'
    • 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
    • C08K5/49—Phosphorus-containing compounds
    • C08K5/51—Phosphorus bound to oxygen
    • C08K5/53—Phosphorus bound to oxygen bound to oxygen and to carbon only
    • C08K5/5317—Phosphonic compounds, e.g. R—P(:O)(OR')2
    • C08K5/5333—Esters of phosphonic acids
    • 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
    • C08K7/00—Use of ingredients characterised by shape
    • C08K7/22—Expanded, porous or hollow particles
    • C08K7/24—Expanded, porous or hollow particles inorganic
    • 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
    • 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
    • C08G2110/00—Foam properties
    • C08G2110/0025—Foam properties rigid
    • 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
    • C08G2110/00—Foam properties
    • C08G2110/0083—Foam properties prepared using water as the sole blowing agent
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2203/00—Foams characterized by the expanding agent
    • C08J2203/10—Water or water-releasing compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2203/00—Foams characterized by the expanding agent
    • C08J2203/14—Saturated hydrocarbons, e.g. butane; Unspecified hydrocarbons
    • C08J2203/142—Halogenated saturated hydrocarbons, e.g. H3C-CF3
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2203/00—Foams characterized by the expanding agent
    • C08J2203/18—Binary blends of expanding agents
    • C08J2203/182—Binary blends of expanding agents of physical blowing agents, e.g. acetone and butane
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2205/00—Foams characterised by their properties
    • C08J2205/10—Rigid foams
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
    • C08J2375/04—Polyurethanes
    • C08J2375/08—Polyurethanes from polyethers
    • 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
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2227—Oxides; Hydroxides of metals of aluminium

Abstract

The invention discloses flame-retardant rigid polyurethane foam, which comprises, by mass, 60-100 parts of polyether polyol, 4-8 parts of a catalyst, 10-25 parts of a foaming agent, 0-10 parts of tris- (3-DOPO-2-hydroxy-propyl) -1,3, 5-triazine-2, 4, 6-trione, 15-35 parts of dimethyl methylphosphonate, 5-20 parts of aluminum hydroxide, 5-25 parts of expandable graphite, 3-15 parts of zinc hydroxystannate, 2-10 parts of V-ODA and 120-150 parts of polyisocyanate; the flame-retardant rigid polyurethane foam can be prepared through one-step mixing reaction, is simple to operate, has few steps, is suitable for mass production, and has good flame retardance and excellent physical-mechanical properties.

Description

Flame-retardant rigid polyurethane foam
Technical Field
The invention belongs to the technical field of flame retardants, and particularly relates to flame-retardant rigid polyurethane foam.
Background
The rigid polyurethane foam material has high dimensional stability, has the advantages of high specific strength, light weight, sound insulation, excellent heat insulation performance and the like, and is often used as heat insulation and structural materials in industries such as refrigerators, pipelines, building outer wall heat insulation boards, automobiles, furniture and the like. However, the polyurethane rigid foam as an organic polymer material mainly comprises elements such as C, H, O, N, is extremely easy to burn, and can generate a large amount of toxic smoke in the burning process. In order to obtain the polyurethane rigid foam material with high-efficiency flame retardance, a high-efficiency flame-retardant system is prepared by adopting a mode of synergistic compounding of different flame retardants.
Disclosure of Invention
The invention provides flame-retardant rigid polyurethane foam, which comprises, by mass, 60-100 parts of polyether polyol, 4-8 parts of a catalyst, 10-25 parts of a foaming agent, 0-10 parts of tris- (3-DOPO-2-hydroxy-propyl) -1,3, 5-triazine-2, 4, 6-Trione (TGD), 15-35 parts of dimethyl methylphosphonate (DMMP), 5-20 parts of aluminum hydroxide, 5-25 parts of expandable graphite, 3-15 parts of zinc hydroxystannate, 2-10 parts of V-ODA and 120-150 parts of polyisocyanate (PAPI); the preparation method of the flame-retardant rigid polyurethane foam is simple and is suitable for industrial production, and the rigid polyurethane foam has excellent flame retardant property and stable physical-mechanical property.
The polyether polyol is 4110, the hydroxyl value of the polyether polyol is 400-500 mgKOH/g, the viscosity at 25 ℃ is 2500-4000 mPa.s, and the water content is less than or equal to 0.15%.
The catalyst is one or more of potassium acetate solution with the mass concentration of 30%, pentamethyldiethylenetriamine (Am-1), N-Dimethylcyclohexylamine (DMCHA) and a foam stabilizer.
The foaming agent comprises distilled water or/and 1-fluoro-1, 1-dichloroethane (HCFC-141 b).
The V-ODA is prepared by dissolving 5-10 g of 3-methoxy-4-hydroxybenzaldehyde in 80-150 mL of ethanol at room temperature, adding 3-10 g of 4, 4-diaminodiphenyl ether, stirring at 2500r/min for 20-60 min, heating to 50-100 ℃, reacting for 4-8 h, cooling the obtained reaction liquid to room temperature, performing suction filtration, and performing vacuum drying on the solid at 40-100 ℃ for 24-48 h.
The structure of the V-ODA contains-C = N-bond and aromatic ring structure, has better char forming property, has two hydroxyl groups in the structure, can chemically react with PAPI, and is used as a reactive flame retardant in the polyurethane rigid foam, and the structural formula is as follows:
Figure DEST_PATH_IMAGE002
when the flame-retardant rigid polyurethane foam is prepared, the raw materials are directly mixed and stirred for reaction for 0.5-3 min to obtain the flame-retardant rigid polyurethane foam.
The rigid polyurethane foam provided by the invention has excellent flame retardant property and stable physical-mechanical property, and the preparation process is simple, easy to operate and suitable for industrial production and market popularization and application.
Detailed Description
The present invention is further illustrated by the following examples, but the scope of the invention is not limited to the above-described examples.
Example 1
Weighing 84g of polyether polyol (4110), 0.56g of 30% potassium acetate solution, 0.48g of pentamethyl diethylene triamine, 1.68g of N, N-dimethylcyclohexylamine, 3.24g of foam stabilizer, 1.08g of distilled water, 18g of HCFC-141b, 6.36g of TGD, 26.4g of DMMP, 11.1g of aluminum hydroxide, 6.6g of zinc hydroxystannate, 19.2g of expandable graphite, 4g of V-ODA and 130g of polyisocyanate (PAPI), wherein the V-ODA is prepared by dissolving 8g of 3-methoxy-4-hydroxybenzaldehyde in 100mL of ethanol at room temperature, adding 6g of 4, 4-diaminodiphenyl ether, stirring for 30min at 1500r/min, heating to 70 ℃, reacting for 7h, cooling the obtained reaction liquid to room temperature, carrying out suction filtration, and carrying out vacuum drying for 30h at 80 ℃ to obtain a solid;
mixing and stirring polyether polyol, a catalyst, a foaming agent and a flame retardant for 90s at the rotating speed of 2000r/min, then adding PAPI to stir rapidly for 10s, pouring the mixture into a mold, and curing for 24h at room temperature to obtain the free foaming foam.
Example 2
70g of polyether polyol (4110), 1g of 30% potassium acetate solution, 1g of pentamethyldiethylenetriamine, 3g of N, N-dimethylcyclohexylamine, 3g of foam stabilizer, 2g of distilled water, 13g of HCFC-141b, TGD8g, DMMP15g, 18g of aluminum hydroxide, 10g of expandable graphite, 5g of zinc hydroxystannate, 5g of V-ODA and 120g of polyisocyanate (PAPI) are weighed respectively; wherein V-ODA is prepared by dissolving 7g of 3-methoxy-4-hydroxybenzaldehyde in 110mL of ethanol at room temperature, adding 8g of 4, 4-diaminodiphenyl ether, stirring at 2000r/min for 40min, heating to 90 ℃ for reaction for 5h, cooling the obtained reaction liquid to room temperature, performing suction filtration, and performing vacuum drying on the solid at 70 ℃ for 35 h;
mixing and stirring polyether polyol, a catalyst and a flame retardant for 70s at the rotating speed of 2200r/min, adding a foaming agent, stirring for 20s to obtain a uniform mixture, adding PAPI, quickly stirring for 10s, pouring into a mold, and curing at room temperature for 24h to obtain the free-foaming foam.
Example 3
95g of polyether polyol (4110), 0.8g of 30% potassium acetate solution, 0.8g of pentamethyldiethylenetriamine, 2g of N, N-dimethylcyclohexylamine, 2.4g of foam stabilizer, 4g of distilled water, 20g of HCFC-141b, 30g of DMMP, 5g of aluminum hydroxide, 15g of expandable graphite, 15g of zinc hydroxystannate, 10g of V-ODA and 140g of polyisocyanate (PAPI) are weighed respectively; wherein V-ODA is prepared by dissolving 9g of 3-methoxy-4-hydroxybenzaldehyde in 90mL of ethanol at room temperature, adding 5g of 4, 4-diaminodiphenyl ether, stirring at 2000r/min for 45min, heating to 65 ℃ for reaction for 7h, cooling the obtained reaction liquid to room temperature, carrying out suction filtration, and carrying out vacuum drying on the solid at 50 ℃ for 40 h;
mixing and stirring polyether polyol, a catalyst and a flame retardant for 70s at the rotating speed of 2200r/min, adding a foaming agent, stirring for 20s to obtain a uniform mixture, adding PAPI, quickly stirring for 10s, pouring into a mold, and curing at room temperature for 24h to obtain the free-foaming foam.
The products prepared in examples 1-3 were tested for flame retardancy and physical properties, and the test results are shown in tables 1 and 2.
TABLE 1 flame retardancy test results of products prepared in examples 1-3
Sample (I) LOI（%） THR(MJ/m2) TSR(m2/m2)
Pure polyurethane foams 18.7 25.0 811.5
Product from example 1 30.3 23.3 785.3
Product from example 2 31.5 23.9 687.2
Product from example 3 31.8 23.7 691.4
In table 1: LOI represents the limiting oxygen index, THR represents the total heat release, and TSR represents the total smoke release.
Table 2 results of physical property test of products prepared in examples 1 to 3
Sample (I) Compressive strength (Mpa) Apparent density (kg/m)3）
Pure polyurethane foams 0.11 33.2
Product from example 1 0.13 40.9
Product from example 2 0.14 42.9
Product from example 3 0.14 42.5
As can be seen from Table 1, the rigid polyurethane foams of examples 1, 2 and 3 were significantly improved in flame retardancy, and the results showed that the flame retardancy was significantly improved, wherein the LOI values were all 30% or more.
As can be seen from Table 2, the apparent densities of the rigid polyurethane foams of example 1, example 2 and example 3 were maintained at 43kg/m3The processing and use of the material are not affected below.
From the above examples, it can be seen that the preparation method provided by the invention has simple steps and easy operation, and the flame-retardant rigid polyurethane foam can be obtained through one-step reaction, and the obtained product has good flame retardant property.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (6)

1. The flame-retardant rigid polyurethane foam is characterized by comprising, by mass, 60-100 parts of polyether polyol, 4-8 parts of a catalyst, 10-25 parts of a foaming agent, 0-10 parts of tris- (3-DOPO-2-hydroxy-propyl) -1,3, 5-triazine-2, 4, 6-trione, 15-35 parts of dimethyl methylphosphonate, 5-20 parts of aluminum hydroxide, 5-25 parts of expandable graphite, 3-15 parts of zinc hydroxystannate, 2-10 parts of V-ODA and 120-150 parts of polyisocyanate.
2. The flame-retardant rigid polyurethane foam according to claim 1, characterized in that: the polyether polyol is 4110, the hydroxyl value of the polyether polyol is 400-500 mgKOH/g, the viscosity at 25 ℃ is 2500-4000 mPa.s, and the water content is less than or equal to 0.15%.
3. The flame-retardant rigid polyurethane foam according to claim 1, characterized in that: the catalyst is one or more of potassium acetate solution with the mass concentration of 30%, pentamethyldiethylenetriamine, N-dimethylcyclohexylamine and foam stabilizer.
4. The flame-retardant rigid polyurethane foam according to claim 1, characterized in that: the foaming agent is distilled water or/and 1-fluoro-1, 1-dichloroethane.
5. The flame-retardant rigid polyurethane foam according to claim 1, characterized in that: the V-ODA is prepared by dissolving 5-10 g of 3-methoxy-4-hydroxybenzaldehyde in 80-150 mL of ethanol at room temperature, adding 3-10 g of 4, 4-diaminodiphenyl ether, stirring for 20-60 min, heating to 50-100 ℃, reacting for 4-8 h, cooling the obtained reaction liquid to room temperature, performing suction filtration, and performing vacuum drying on the solid at 40-100 ℃ for 24-48 h.
6. The flame-retardant rigid polyurethane foam according to claim 5, characterized in that: the stirring speed is 1500-.
CN202111304139.1A 2021-11-05 2021-11-05 Flame-retardant rigid polyurethane foam Pending CN113912815A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111304139.1A CN113912815A (en) 2021-11-05 2021-11-05 Flame-retardant rigid polyurethane foam

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111304139.1A CN113912815A (en) 2021-11-05 2021-11-05 Flame-retardant rigid polyurethane foam

Publications (1)

Publication Number Publication Date
CN113912815A true CN113912815A (en) 2022-01-11

Family

ID=79245413

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111304139.1A Pending CN113912815A (en) 2021-11-05 2021-11-05 Flame-retardant rigid polyurethane foam

Country Status (1)

Country Link
CN (1) CN113912815A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114516948A (en) * 2022-02-24 2022-05-20 国网湖南省电力有限公司 Fireproof and anti-condensation material for annular net cage and preparation method thereof
CN114634607A (en) * 2022-04-06 2022-06-17 云南锡业集团（控股）有限责任公司研发中心 Preparation method of flame-retardant rigid polyurethane foam and prepared foam product

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109354669A (en) * 2018-09-12 2019-02-19 北京工商大学 A kind of highly effective flame-retardant rigid polyurethane foam accessing phospho hetero phenanthrene group
CN110218546A (en) * 2019-06-20 2019-09-10 佛山南宝高盛高新材料有限公司 A kind of Halogen is from flame retardant polyurethane hot melt adhesive and preparation method thereof
CN112592291A (en) * 2020-11-18 2021-04-02 四川大学 Flame-retardant phase-change material containing Schiff base structure and preparation method and application thereof
CN113336909A (en) * 2021-08-06 2021-09-03 苏州大学 Remoldable and degradable biomass benzoxazine resin and preparation method thereof
CN114031522A (en) * 2021-10-29 2022-02-11 苏州大学 Halogen-free phosphorus-free intumescent flame retardant and preparation method and application thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109354669A (en) * 2018-09-12 2019-02-19 北京工商大学 A kind of highly effective flame-retardant rigid polyurethane foam accessing phospho hetero phenanthrene group
CN110218546A (en) * 2019-06-20 2019-09-10 佛山南宝高盛高新材料有限公司 A kind of Halogen is from flame retardant polyurethane hot melt adhesive and preparation method thereof
CN112592291A (en) * 2020-11-18 2021-04-02 四川大学 Flame-retardant phase-change material containing Schiff base structure and preparation method and application thereof
CN113336909A (en) * 2021-08-06 2021-09-03 苏州大学 Remoldable and degradable biomass benzoxazine resin and preparation method thereof
CN114031522A (en) * 2021-10-29 2022-02-11 苏州大学 Halogen-free phosphorus-free intumescent flame retardant and preparation method and application thereof

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
刘巍等: "单组分膨胀型阻燃剂的研究进展", 《塑料科技》 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114516948A (en) * 2022-02-24 2022-05-20 国网湖南省电力有限公司 Fireproof and anti-condensation material for annular net cage and preparation method thereof
CN114634607A (en) * 2022-04-06 2022-06-17 云南锡业集团（控股）有限责任公司研发中心 Preparation method of flame-retardant rigid polyurethane foam and prepared foam product

Similar Documents

Publication Publication Date Title
CN113912815A (en) Flame-retardant rigid polyurethane foam
CN111909339A (en) Alkane foaming B1-grade flame-retardant polyurethane rigid foam and preparation method thereof
CN102911334A (en) B1-grade high-fire-retardant low-smoke-generation rigid polyurethane foam
CN102898778A (en) Preparation method for melamine formaldehyde resin closed-cell foam
Yuan et al. Mechanical and thermal properties of phenolic/glass fiber foam modified with phosphorus‐containing polyurethane prepolymer
CN105949432B (en) A kind of modified gangue-rigid polyurethane foam compound insulating material
CN104479092A (en) Low-density all-water open-cell hard polyurethane foam and preparation method thereof
CN107955124B (en) High-strength flame-retardant rigid polyurethane foam prepared from boron-nitrogen-containing polycyclic polyether polyol and preparation method thereof
Chen et al. Effect of stoichiometry on the thermal stability and flame retardation of polyisocyanurate foams modified with epoxy resin
CN104927301B (en) Modified melamine formaldehyde (MF) foam of polyisocyanic acid ester oligomer and preparation method thereof
CN110698621B (en) Sec modified melamine formaldehyde resin and preparation method thereof
CN107974037B (en) Application of graded lignin in preparation of phenolic foam thermal insulation material
CN105061715A (en) HFC-245eb type combined polyether for polyurethane plastics for boards and preparation method of HFC-245eb type combined polyether
CN107686560B (en) Preparation method of cellulose flame-retardant modified composite phenolic foam
CN112457460B (en) Preparation method of mosaic modified melamine formaldehyde resin
CN111454417A (en) Full-water flame-retardant modified spraying polyurethane foam and preparation method thereof
CN109422910B (en) Blowing agents comprising orthoformate and carbonate alkanolamine salts and use in polyurethane continuous panel foam materials
CN112538094A (en) Melamine alkyl phosphate and preparation method and application thereof
CN109438664B (en) Flame-retardant rigid foam polyurethane material for household appliances and preparation method thereof
CN112646106A (en) Composite polyether for environment-friendly flame-retardant polyurethane commercial beverage barrel and preparation method thereof
CN111116893B (en) Method for synthesizing flame-retardant melamine phenolic hard foam polyether polyol
CN107298769A (en) A kind of phenyl modified expansible graphite fire retardant and preparation method thereof
CN114634607A (en) Preparation method of flame-retardant rigid polyurethane foam and prepared foam product
CN106188467A (en) A kind of modified pearl rock RPUF compound insulating material
CN111333996A (en) Modified phenolic foam and preparation method thereof

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20220111