CN115838465A - Low-cost environment-friendly flame-retardant polyurethane foam material and preparation process thereof - Google Patents
Low-cost environment-friendly flame-retardant polyurethane foam material and preparation process thereof Download PDFInfo
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- CN115838465A CN115838465A CN202211617011.5A CN202211617011A CN115838465A CN 115838465 A CN115838465 A CN 115838465A CN 202211617011 A CN202211617011 A CN 202211617011A CN 115838465 A CN115838465 A CN 115838465A
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- 239000000463 material Substances 0.000 title claims abstract description 37
- 229920005830 Polyurethane Foam Polymers 0.000 title claims abstract description 34
- 239000011496 polyurethane foam Substances 0.000 title claims abstract description 34
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 239000003063 flame retardant Substances 0.000 title claims abstract description 32
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- 239000004721 Polyphenylene oxide Substances 0.000 claims abstract description 41
- 229920000570 polyether Polymers 0.000 claims abstract description 41
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims abstract description 33
- 238000002156 mixing Methods 0.000 claims abstract description 33
- 239000002994 raw material Substances 0.000 claims abstract description 28
- 229920005989 resin Polymers 0.000 claims abstract description 28
- 239000011347 resin Substances 0.000 claims abstract description 28
- 239000006260 foam Substances 0.000 claims abstract description 25
- 229920002401 polyacrylamide Polymers 0.000 claims abstract description 22
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims abstract description 21
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000000839 emulsion Substances 0.000 claims abstract description 19
- 239000002105 nanoparticle Substances 0.000 claims abstract description 19
- 239000004094 surface-active agent Substances 0.000 claims abstract description 19
- 239000003945 anionic surfactant Substances 0.000 claims abstract description 18
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims abstract description 18
- 239000000347 magnesium hydroxide Substances 0.000 claims abstract description 18
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims abstract description 18
- LVYZJEPLMYTTGH-UHFFFAOYSA-H dialuminum chloride pentahydroxide dihydrate Chemical compound [Cl-].[Al+3].[OH-].[OH-].[Al+3].[OH-].[OH-].[OH-].O.O LVYZJEPLMYTTGH-UHFFFAOYSA-H 0.000 claims abstract description 17
- CYRMSUTZVYGINF-UHFFFAOYSA-N trichlorofluoromethane Chemical compound FC(Cl)(Cl)Cl CYRMSUTZVYGINF-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229940029284 trichlorofluoromethane Drugs 0.000 claims abstract description 16
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 13
- PMDHMYFSRFZGIO-UHFFFAOYSA-N 1,4,7-trioxacyclotridecane-8,13-dione Chemical compound O=C1CCCCC(=O)OCCOCCO1 PMDHMYFSRFZGIO-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229940106012 diethylene glycol adipate Drugs 0.000 claims abstract description 10
- -1 diglycol adipate diol Chemical class 0.000 claims abstract description 10
- 229920002050 silicone resin Polymers 0.000 claims abstract description 6
- 239000000126 substance Substances 0.000 claims description 27
- 238000006243 chemical reaction Methods 0.000 claims description 24
- 239000000243 solution Substances 0.000 claims description 24
- 239000013543 active substance Substances 0.000 claims description 19
- 229940125782 compound 2 Drugs 0.000 claims description 18
- 229920001296 polysiloxane Polymers 0.000 claims description 16
- 239000000203 mixture Substances 0.000 claims description 15
- 238000003756 stirring Methods 0.000 claims description 15
- 238000005187 foaming Methods 0.000 claims description 14
- 229960001422 aluminium chlorohydrate Drugs 0.000 claims description 9
- 239000003153 chemical reaction reagent Substances 0.000 claims description 9
- 230000005484 gravity Effects 0.000 claims description 9
- 150000002894 organic compounds Chemical class 0.000 claims description 9
- 229920000642 polymer Polymers 0.000 claims description 9
- 239000003381 stabilizer Substances 0.000 claims description 9
- 150000005846 sugar alcohols Polymers 0.000 claims description 9
- 239000003054 catalyst Substances 0.000 claims description 6
- 230000007246 mechanism Effects 0.000 claims description 6
- 239000011259 mixed solution Substances 0.000 claims description 6
- 230000004048 modification Effects 0.000 claims description 5
- 238000012986 modification Methods 0.000 claims description 5
- 239000008367 deionised water Substances 0.000 claims description 3
- 229910021641 deionized water Inorganic materials 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000006116 polymerization reaction Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000006261 foam material Substances 0.000 abstract description 9
- 150000005690 diesters Chemical class 0.000 abstract description 2
- 238000004321 preservation Methods 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- WNLRTRBMVRJNCN-UHFFFAOYSA-L adipate(2-) Chemical compound [O-]C(=O)CCCCC([O-])=O WNLRTRBMVRJNCN-UHFFFAOYSA-L 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000004872 foam stabilizing agent Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 229920002545 silicone oil Polymers 0.000 description 2
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
Landscapes
- Polyurethanes Or Polyureas (AREA)
Abstract
The invention discloses a low-cost environment-friendly flame-retardant polyurethane foam material and a preparation process thereof, wherein polyurethane foam raw materials and components thereof are selected from 80-100 parts of poly (diethylene glycol adipate) glycol, 20-30 parts of polyether resin, 40-50 parts of diphenylmethane diisocyanate, 15-20 parts of trichloromonofluoromethane, 2-5 parts of an anionic surfactant, 1-5 parts of an animal and plant surfactant, 1-5 parts of a silicone resin polyether emulsion, 1-5 parts of polyacrylamide, 2 parts of a tackifier, 2 parts of nanoparticles, 2 parts of aluminum chlorohydrate, 2 parts of an environment-friendly phosphating solution and 2 parts of magnesium hydroxide; the foam material is more stable by adopting the diglycol adipate diol, the polyether resin and the diester monool of the diphenylmethane diisocyanate as the basic raw materials of the foam material, and the foam stability of the foam material is improved by preparing a foam stabilizing system formed by mixing an anionic surfactant, an animal and plant surfactant, a silicone resin polyether emulsion, polyacrylamide, a tackifier and nano particles.
Description
Technical Field
The invention relates to the field of preparation of polyurethane foam, and particularly relates to a low-cost environment-friendly flame-retardant polyurethane foam material and a preparation process thereof.
Background
The environment-friendly flame-retardant polyurethane foam is a novel synthetic material with heat-insulating and waterproof functions, has low thermal conductivity coefficient, namely only 0.022-0.033W/(m x K), is equivalent to half of an extruded sheet, and is the lowest thermal conductivity coefficient in all heat-insulating materials. The hard polyurethane foam plastic is mainly applied to heat preservation of building outer walls, integration of roof waterproof and heat preservation, heat preservation and heat insulation of refrigerators, pipeline heat preservation materials, building boards, refrigerated trucks, cold storage heat insulation materials and the like.
At present, in the process of preparing and foaming polyurethane foam materials, in order to increase the intersolubility of each component, foam stabilizers are generally selected to be added into emulsified foam materials, most of the existing foam stabilizers are selected to be silicon oil, and the foam stabilizing capability of the silicon oil is effective, so that the effects of stabilizing foam and adjusting foam holes cannot be well played, and the quality of the polyurethane foam is easily influenced.
Disclosure of Invention
The invention aims to provide a low-cost environment-friendly flame-retardant polyurethane foam material and a preparation process thereof, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a low-cost environment-friendly flame-retardant polyurethane foam material and a preparation process thereof are disclosed, wherein polyurethane foam raw materials and components thereof are selected from 80-100 parts of poly (diethylene glycol adipate) glycol, 20-30 parts of polyether resin, 40-50 parts of diphenylmethane diisocyanate, 15-20 parts of trichloromonofluoromethane, 2-5 parts of anionic surfactant, 1-5 parts of animal and plant surfactant, 1-5 parts of silicone resin polyether emulsion, 1-5 parts of polyacrylamide, 2 parts of tackifier, 2 parts of nano particles, 2 parts of aluminum chlorohydrate, 2 parts of environment-friendly phosphating solution and 2 parts of magnesium hydroxide, the polymerization degree of the poly (diethylene glycol adipate) glycol is 2500-4500, and the preparation method is characterized by comprising the following steps:
s1: preparing a first prepolymer, namely adding poly (diethylene glycol adipate) glycol and diphenylmethane diisocyanate into a reaction kettle according to the components, adding a catalyst, and stirring and mixing the mixture through a mixing mechanism in the reaction kettle at normal temperature and normal pressure to obtain the first prepolymer;
s2: preparing a second prepolymer, namely adding deionized water and polyether resin into a reaction kettle, adding a catalyst, stirring and mixing through a mixing mechanism in the reaction kettle at normal temperature and normal pressure to obtain a second prepolymer, simultaneously introducing the two prepolymers obtained in the step S1 and the step S2 into the reaction kettle, stirring and mixing, and standing for 10 minutes to obtain a semi-prepolymer;
s3: foaming: introducing trichlorofluoromethane into a reaction kettle in which the semi-prepolymer is positioned, and mixing and foaming;
s4: preparing a foam stabilizing solution system, mixing an anionic surfactant and an animal and plant surfactant, adding a silicone polyether emulsion and polyacrylamide for rapid reaction, directly introducing the mixture into a reaction container where a semi-prepolymer is positioned, adding a tackifier and nanoparticles after foaming in the container, wherein in the mixed solution system, the molar ratio of silicone polyether to polyacrylamide is 0.1-10;
s5, flame-retardant modification: putting the raw materials of aluminum chlorohydrol and magnesium hydroxide into a high-speed crusher to obtain a powdery flame-retardant composition, adding the powdery flame-retardant composition into a foam stabilizing solution system, accelerating stirring, wherein the stirring speed is 800r/min, heating and curing the foam stabilizing solution system, and filtering the mixed solution to obtain the environment-friendly flame-retardant polyurethane foam material;
preferably, the formula ratio 1 of the polyurethane foam material is as follows:
| raw materials | Variety of raw material | Specific gravity of | Parts by weight (g) |
| Polydiethylene glycol adipate diol | Polyhydric alcohols | / | 80 |
| Polyether resin | Inorganic substance | / | 20 |
| Diphenylmethane diisocyanate | Chemical admixture | / | 40 |
| Trichlorofluoromethane | Organic compounds | / | 15 |
| Anion of the bodySurface active agent | Active agent | / | 2 |
| Animal and plant surfactant | Active agent | 1 | |
| Silicone polyether emulsion | Foam stabilizer | 1 | |
| Polyacrylamide | High molecular polymer | 1 | |
| Tackifier | Resin compound | 2 | |
| Nanoparticles | Microscopic material | 2 | |
| Aluminium chlorohydrate | Inorganic high molecular compound | 2 | |
| Environment-friendly phosphating solution | Mixing chemical reagents | 2 | |
| Magnesium hydroxide | Inorganic substance | 2 |
Preferably, the formula ratio 2 of the polyurethane foam material is as follows:
| raw materials | Variety of raw material | Specific gravity of | Parts by weight (g) |
| Polydiethylene glycol adipate diol | Polyhydric alcohols | / | 90 |
| Polyether resin | Inorganic substance | / | 25 |
| Diphenylmethane diisocyanate | Chemical admixture | / | 45 |
| Trichlorofluoromethane | Organic compounds | / | 18 |
| Anionic surfactants | Active agent | / | 4 |
| Animal and plant surfactant | Active agent | 3 | |
| Silicone polyether emulsion | Foam stabilizer | 3 | |
| Polyacrylamide | High molecular polymer | 3 | |
| Tackifier | Resin compound | 2 | |
| Nanoparticles | Microscopic material | 2 | |
| Aluminium chlorohydrate | Inorganic high molecular compound | 2 | |
| Environment-friendly phosphating solution | Mixing chemical reagents | 2 | |
| Magnesium hydroxide | Inorganic substance | 2 |
Preferably, the formula ratio 3 of the polyurethane foam material is as follows:
| raw materials | Variety of raw materials | Specific gravity of | Parts by weight (g) |
| Polydiethylene glycol adipate diol | Polyhydric alcohols | / | 100 |
| Polyether resin | Inorganic substance | / | 30 |
| Diphenylmethane diisocyanate | Chemical admixture | / | 50 |
| Trichlorofluoromethane | Organic compounds | / | 20 |
| Anionic surfactants | Active agent | / | 5 |
| Animal and plant surfactant | Active agent | 5 | |
| Silicone polyether emulsion | Foam stabilizer | 5 | |
| Polyacrylamide | High molecular polymer | 5 | |
| Tackifier | Resin compound | 2 | |
| Nanoparticles | Microscopic material | 2 | |
| Aluminium chlorohydrate | Inorganic high molecular compound | 2 | |
| Environment-friendly phosphating solution | Mixing chemical reagents | 2 | |
| Magnesium hydroxide | Inorganic substance | 2 |
The invention has the technical effects and advantages that: a low-cost environment-friendly flame-retardant polyurethane foam material and a preparation process thereof are disclosed, wherein a foaming foam stabilizing system formed by mixing an anionic surfactant, an animal and plant surfactant, a silicone polyether emulsion, polyacrylamide, a tackifier and nanoparticles is prepared by adopting polyethylene glycol adipate glycol, polyether resin and diester monool of diphenylmethane diisocyanate as basic raw materials of the foam material, so that the foam material is more stable, the foaming stability of the foam material is improved, the structural composition of the system has a wide variation range, the intersolubility of all components can be effectively increased, and a flame-retardant composition formed by adding aluminum chlorohydrate, an environment-friendly phosphating solution and magnesium hydroxide is more flame-retardant than traditional silicone oil and has better and more stable flame-retardant performance.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
The invention provides a low-cost environment-friendly flame-retardant polyurethane foam material and a preparation process thereof, wherein polyurethane foam raw materials and components thereof are selected from 80-100 parts of poly (diethylene glycol adipate) glycol, 20-30 parts of polyether resin, 40-50 parts of diphenylmethane diisocyanate, 15-20 parts of trichlorofluoromethane, 2-5 parts of anionic surfactant, 1-5 parts of animal and plant surfactant, 1-5 parts of silicone resin polyether emulsion, 1-5 parts of polyacrylamide, 2 parts of tackifier, 2 parts of nano particles, 2 parts of aluminum chlorohydrate, 2 parts of environment-friendly phosphating solution and 2 parts of magnesium hydroxide, the polymerization degree of the poly (diethylene glycol adipate) glycol is 2500-4500, and the preparation method is characterized by comprising the following steps of:
s1: preparing a first prepolymer, namely adding poly (diethylene glycol adipate) glycol and diphenylmethane diisocyanate into a reaction kettle according to components, adding a catalyst, and stirring and mixing through a mixing mechanism in the reaction kettle at normal temperature and normal pressure to obtain a first prepolymer;
s2: preparing a second prepolymer, namely adding deionized water and polyether resin into a reaction kettle, adding a catalyst, stirring and mixing through a mixing mechanism in the reaction kettle at normal temperature and normal pressure to obtain a second prepolymer, simultaneously introducing the two prepolymers obtained in the step S1 and the step S2 into the reaction kettle, stirring and mixing, and standing for 10 minutes to obtain a semi-prepolymer;
s3: foaming: introducing trichlorofluoromethane into a reaction kettle in which the semi-prepolymer is positioned, and mixing and foaming;
s4: preparing a foam stabilizing solution system, mixing an anionic surfactant and an animal and plant surfactant, adding a silicone polyether emulsion and polyacrylamide for rapid reaction, directly introducing the mixture into a reaction container where a semi-prepolymer is positioned, adding a tackifier and nanoparticles after foaming in the container, wherein in the mixed solution system, the molar ratio of silicone polyether to polyacrylamide is 0.1-10;
s5, flame-retardant modification: putting the raw materials of aluminum chlorohydrate and magnesium hydroxide into a high-speed crusher to obtain a powdery flame-retardant composition, adding the powdery flame-retardant composition into a foam stabilizing solution system, accelerating stirring, wherein the stirring speed is 800r/min, heating and curing the foam stabilizing solution system at the moment, and finally filtering the mixed solution to obtain the environment-friendly flame-retardant polyurethane foam material;
in the first embodiment, the formula proportion 1 of the polyurethane foam material is as follows:
| raw materials | Variety of raw materials | Specific gravity of | Parts by weight (g) |
| Polydiethylene glycol adipate diol | Polyhydric alcohols | / | 80 |
| Polyether resin | Inorganic substance | / | 20 |
| Diphenylmethane diisocyanate | Chemical admixture | / | 40 |
| Trichlorofluoromethane | Organic compounds | / | 15 |
| Anionic surfactants | Active agent | / | 2 |
| Animal and plant surfactant | Active agent | 1 | |
| Silicone polyether emulsion | Foam stabilizer | 1 | |
| Polyacrylamide | High molecular polymer | 1 | |
| Tackifier | Resin compound | 2 | |
| Nanoparticles | Microscopic material | 2 | |
| Aluminium chlorohydrate | Inorganic high molecular compound | 2 | |
| Environment-friendly phosphating solution | Mixing chemical reagents | 2 | |
| Magnesium hydroxide | Inorganic substance | 2 |
In the second embodiment, the formula ratio 2 of the polyurethane foam material is as follows:
| raw materials | Variety of raw material | Specific gravity of | Parts by weight (g) |
| Polydiethylene glycol adipate diol | Polyhydric alcohols | / | 90 |
| Polyether resin | Inorganic substance | / | 25 |
| Diphenylmethane diisocyanate | Chemical admixture | / | 45 |
| Trichlorofluoromethane | Organic compounds | / | 18 |
| Anionic surfactants | Active agent | / | 4 |
| Animal and plant surfactant | Active agent | 3 | |
| Silicone polyether emulsion | Foam stabilizer | 3 | |
| Polyacrylamide | High molecular polymer | 3 | |
| Tackifier | Resin compound | 2 | |
| Nanoparticles | Microscopic material | 2 | |
| Aluminium chlorohydrate | Inorganic high molecular compound | 2 | |
| Environment-friendly phosphating solution | Mixing chemical reagents | 2 | |
| Magnesium hydroxide | Inorganic substance | 2 |
In the third embodiment, the formula ratio 3 of the polyurethane foam material is as follows:
| raw materials | Variety of raw material | Specific gravity of | Parts by weight (g) |
| Polydiethylene glycol adipate diol | Polyhydric alcohols | / | 100 |
| Polyether resin | Inorganic substance | / | 30 |
| Diphenylmethane diisocyanate | Chemical admixture | / | 50 |
| Trichlorofluoromethane | Organic compounds | / | 20 |
| Anionic surfactants | Active agent | / | 5 |
| Animal and plant surfactant | Active agent | 5 | |
| Silicone polyether emulsion | Foam stabilizer | 5 | |
| Polyacrylamide | High molecular polymer | 5 | |
| Tackifier | Resin compound | 2 | |
| Nanoparticles | Microscopic material | 2 | |
| Aluminium chlorohydrate | Inorganic high molecular compound | 2 | |
| Environment-friendly phosphating solution | Mixing chemical reagents | 2 | |
| Magnesium hydroxide | Inorganic substance | 2 |
In conclusion, the low-cost environment-friendly flame-retardant polyurethane foam material and the preparation process thereof provided by the invention have the advantages that the material is more stable by adopting the diglycol adipate glycol, the polyether resin and the diester-ol of the diphenylmethane diisocyanate as the basic raw materials of the foam material, the foaming stability of the foam material is improved by preparing a foaming stable foam system formed by mixing the anionic surfactant, the animal and plant surfactant, the silicone resin polyether emulsion, the polyacrylamide, the tackifier and the nano particles, the structural composition of the system has wide variation range, the intersolubility of the components can be effectively increased, and the flame-retardant composition consisting of the aluminum chlorohydrate, the environment-friendly phosphating solution and the magnesium hydroxide is more flame-retardant than the traditional silicone oil and has better and more stable flame-retardant performance.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
The standard parts used by the invention can be purchased from the market, and the special-shaped parts can be customized according to the description of the specification.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The low-cost environment-friendly flame-retardant polyurethane foam material is characterized in that polyurethane foam raw materials and components thereof are 80-100 parts of poly (diethylene glycol adipate) glycol, 20-30 parts of polyether resin, 40-50 parts of diphenylmethane diisocyanate, 15-20 parts of trichlorofluoromethane, 2-5 parts of anionic surfactant, 1-5 parts of animal and plant surfactant, 1-5 parts of silicone resin polyether emulsion, 1-5 parts of polyacrylamide, 2 parts of tackifier, 2 parts of nano particles, 2 parts of aluminum chlorohydrate, 2 parts of environment-friendly phosphating solution and 2 parts of magnesium hydroxide, the polymerization degree of the poly (diethylene glycol adipate) glycol is 2500-4500, and the preparation method comprises the following steps:
s1: preparing a first prepolymer, namely adding poly (diethylene glycol adipate) glycol and diphenylmethane diisocyanate into a reaction kettle according to the components, adding a catalyst, and stirring and mixing the mixture through a mixing mechanism in the reaction kettle at normal temperature and normal pressure to obtain the first prepolymer;
s2: preparing a second prepolymer, namely adding deionized water and polyether resin into a reaction kettle, adding a catalyst, stirring and mixing through a mixing mechanism in the reaction kettle at normal temperature and normal pressure to obtain a second prepolymer, simultaneously introducing the two prepolymers obtained in the step S1 and the step S2 into the reaction kettle, stirring and mixing, and standing for 10 minutes to obtain a semi-prepolymer;
s3: foaming: introducing trichloromonofluoromethane into a reaction kettle in which the semi-prepolymer is positioned, and mixing and foaming;
s4: preparing a foam stabilizing solution system, mixing an anionic surfactant and an animal and plant surfactant, adding a silicone polyether emulsion and polyacrylamide for rapid reaction, directly introducing the mixture into a reaction container where a semi-prepolymer is positioned, adding a tackifier and nanoparticles after foaming in the container, wherein in the mixed solution system, the molar ratio of silicone polyether to polyacrylamide is 0.1-10;
s5, flame-retardant modification: putting the raw materials of aluminum chlorohydrate and magnesium hydroxide into a high-speed crusher to obtain a powdery flame-retardant composition, adding the powdery flame-retardant composition into a foam stabilizing solution system, accelerating stirring, wherein the stirring speed is 800r/min, heating and curing the foam stabilizing solution system at the moment, and finally filtering the mixed solution to obtain the environment-friendly flame-retardant polyurethane foam material.
2. The low-cost environment-friendly flame retardant polyurethane foam material and the preparation process thereof as claimed in claim 1, wherein the formula ratio of the polyurethane foam material is 1:
。
3. The low-cost environment-friendly flame retardant polyurethane foam material and the preparation process thereof as claimed in claim 1, wherein the formula ratio 2 of the polyurethane foam material is as follows:
。
4. The low-cost environment-friendly flame retardant polyurethane foam material and the preparation process thereof as claimed in claim 1, wherein the formula ratio 3 of the polyurethane foam material is as follows:
。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211617011.5A CN115838465A (en) | 2022-12-16 | 2022-12-16 | Low-cost environment-friendly flame-retardant polyurethane foam material and preparation process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211617011.5A CN115838465A (en) | 2022-12-16 | 2022-12-16 | Low-cost environment-friendly flame-retardant polyurethane foam material and preparation process thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115838465A true CN115838465A (en) | 2023-03-24 |
Family
ID=85578730
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211617011.5A Withdrawn CN115838465A (en) | 2022-12-16 | 2022-12-16 | Low-cost environment-friendly flame-retardant polyurethane foam material and preparation process thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115838465A (en) |
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2022
- 2022-12-16 CN CN202211617011.5A patent/CN115838465A/en not_active Withdrawn
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