CN114716641A - Polyurethane foam composition and preparation method thereof - Google Patents
Polyurethane foam composition and preparation method thereof Download PDFInfo
- Publication number
- CN114716641A CN114716641A CN202210258139.0A CN202210258139A CN114716641A CN 114716641 A CN114716641 A CN 114716641A CN 202210258139 A CN202210258139 A CN 202210258139A CN 114716641 A CN114716641 A CN 114716641A
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- Prior art keywords
- parts
- foaming
- bentonite
- polyurethane foam
- foam composition
- 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.)
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- 229920005830 Polyurethane Foam Polymers 0.000 title claims abstract description 42
- 239000011496 polyurethane foam Substances 0.000 title claims abstract description 42
- 239000000203 mixture Substances 0.000 title claims abstract description 38
- 238000002360 preparation method Methods 0.000 title description 35
- 239000000440 bentonite Substances 0.000 claims abstract description 67
- 229910000278 bentonite Inorganic materials 0.000 claims abstract description 67
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims abstract description 67
- 238000005187 foaming Methods 0.000 claims abstract description 67
- 239000002131 composite material Substances 0.000 claims abstract description 53
- 229920000642 polymer Polymers 0.000 claims abstract description 47
- 239000000654 additive Substances 0.000 claims abstract description 33
- 230000000996 additive effect Effects 0.000 claims abstract description 33
- 239000012948 isocyanate Substances 0.000 claims abstract description 25
- 150000002513 isocyanates Chemical class 0.000 claims abstract description 25
- 229920005906 polyester polyol Polymers 0.000 claims abstract description 24
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 22
- 239000004088 foaming agent Substances 0.000 claims abstract description 20
- 239000002994 raw material Substances 0.000 claims abstract description 14
- 229910021389 graphene Inorganic materials 0.000 claims description 69
- 239000000376 reactant Substances 0.000 claims description 42
- 238000002156 mixing Methods 0.000 claims description 40
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 34
- 238000003756 stirring Methods 0.000 claims description 31
- 238000006243 chemical reaction Methods 0.000 claims description 28
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 24
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 21
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 21
- -1 carbodiimide modified MDI Chemical class 0.000 claims description 18
- 238000000227 grinding Methods 0.000 claims description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 15
- 230000004048 modification Effects 0.000 claims description 15
- 238000012986 modification Methods 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 14
- 229920001661 Chitosan Polymers 0.000 claims description 13
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 13
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 12
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 12
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 12
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 claims description 12
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 claims description 12
- 230000036632 reaction speed Effects 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 10
- 238000001132 ultrasonic dispersion Methods 0.000 claims description 10
- 229920000877 Melamine resin Polymers 0.000 claims description 9
- 239000008367 deionised water Substances 0.000 claims description 9
- 229910021641 deionized water Inorganic materials 0.000 claims description 9
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 claims description 9
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 claims description 8
- 238000001354 calcination Methods 0.000 claims description 8
- 238000010894 electron beam technology Methods 0.000 claims description 8
- 239000006260 foam Substances 0.000 claims description 8
- 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 description 7
- UYUXSRADSPPKRZ-UHFFFAOYSA-N D-glucuronic acid gamma-lactone Natural products O=CC(O)C1OC(=O)C(O)C1O UYUXSRADSPPKRZ-UHFFFAOYSA-N 0.000 claims description 7
- UYUXSRADSPPKRZ-SKNVOMKLSA-N D-glucurono-6,3-lactone Chemical compound O=C[C@H](O)[C@H]1OC(=O)[C@@H](O)[C@H]1O UYUXSRADSPPKRZ-SKNVOMKLSA-N 0.000 claims description 7
- 229930040373 Paraformaldehyde Natural products 0.000 claims description 7
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 7
- 239000003513 alkali Substances 0.000 claims description 7
- 238000001035 drying Methods 0.000 claims description 7
- 229950002441 glucurolactone Drugs 0.000 claims description 7
- 229920002866 paraformaldehyde Polymers 0.000 claims description 7
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 7
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 7
- KUCOHFSKRZZVRO-UHFFFAOYSA-N terephthalaldehyde Chemical compound O=CC1=CC=C(C=O)C=C1 KUCOHFSKRZZVRO-UHFFFAOYSA-N 0.000 claims description 7
- 238000005406 washing Methods 0.000 claims description 7
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical compound N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 claims description 6
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 claims description 6
- 229960000583 acetic acid Drugs 0.000 claims description 6
- 239000001361 adipic acid Substances 0.000 claims description 6
- 235000011037 adipic acid Nutrition 0.000 claims description 6
- 239000012362 glacial acetic acid Substances 0.000 claims description 6
- 238000006068 polycondensation reaction Methods 0.000 claims description 6
- 239000002904 solvent Substances 0.000 claims description 6
- 239000004604 Blowing Agent Substances 0.000 claims description 5
- ICGLPKIVTVWCFT-UHFFFAOYSA-N 4-methylbenzenesulfonohydrazide Chemical compound CC1=CC=C(S(=O)(=O)NN)C=C1 ICGLPKIVTVWCFT-UHFFFAOYSA-N 0.000 claims description 4
- MWRWFPQBGSZWNV-UHFFFAOYSA-N Dinitrosopentamethylenetetramine Chemical compound C1N2CN(N=O)CN1CN(N=O)C2 MWRWFPQBGSZWNV-UHFFFAOYSA-N 0.000 claims description 4
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 claims description 4
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 claims description 4
- NDLIRBZKZSDGSO-UHFFFAOYSA-N tosyl azide Chemical compound CC1=CC=C(S(=O)(=O)[N-][N+]#N)C=C1 NDLIRBZKZSDGSO-UHFFFAOYSA-N 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims 1
- 229920013730 reactive polymer Polymers 0.000 claims 1
- 238000009413 insulation Methods 0.000 abstract description 6
- 238000004321 preservation Methods 0.000 description 11
- 230000000052 comparative effect Effects 0.000 description 8
- 238000009210 therapy by ultrasound Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 239000011229 interlayer Substances 0.000 description 5
- 238000006116 polymerization reaction Methods 0.000 description 5
- 230000004888 barrier function Effects 0.000 description 4
- 239000000178 monomer Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 2
- 239000004971 Cross linker Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 229920001568 phenolic resin Polymers 0.000 description 2
- 239000005011 phenolic resin Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 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 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
Classifications
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
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- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
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- C08G18/3206—Polyhydroxy compounds aliphatic
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- C08G18/3275—Hydroxyamines containing two hydroxy groups
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- C08G18/4236—Polycondensates having carboxylic or carbonic ester groups in the main chain containing only aliphatic groups
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- C08K5/5435—Silicon-containing compounds containing oxygen containing oxygen in a ring
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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
- C08K9/00—Use of pretreated ingredients
- C08K9/08—Ingredients agglomerated by treatment with a binding agent
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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
- 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
- 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
- C08J2203/04—N2 releasing, ex azodicarbonamide or nitroso compound
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- 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
- C08J2375/06—Polyurethanes from polyesters
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- C08J2471/00—Characterised by the use of polyethers obtained by reactions forming an ether link in the main chain; Derivatives of such polymers
- C08J2471/02—Polyalkylene oxides
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
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Abstract
The invention discloses a polyurethane foam composition, which comprises the following raw materials in parts by weight: 60-70 parts of polyester polyol, 30-40 parts of isocyanate, 4-8 parts of organic active polymer modified composite bentonite, 1-5 parts of foaming agent, 1-3 parts of cross-linking agent and 1-2 parts of foaming modified additive. The invention adopts polyester polyol, isocyanate, foaming agent and cross-linking agent to be matched for use, and adds organic active polymer modified composite bentonite and foaming modified additive to improve the mechanical property and the heat insulation property of the product.
Description
Technical Field
The invention relates to the technical field of polyurethane foam, in particular to a polyurethane foam composition and a preparation method thereof.
Background
The rigid polyurethane foam is a high molecular polymer prepared by mixing isocyanate and polyether/polyester serving as main raw materials through special equipment under the action of various auxiliaries such as a foaming agent, a catalyst, a flame retardant and the like and performing high-pressure spraying and on-site foaming. Polyurethane has both soft and hard foams. The soft bubbles are in an open pore structure, and the hard bubbles are in a closed pore structure; soft foams are classified into skinned and non-skinned. The rigid polyurethane foam is a new synthetic material with heat preservation and waterproof functions, the thermal conductivity coefficient of the rigid polyurethane foam is low, the thermal conductivity coefficient of the closed-cell foam is less than 0.024W/(m.K), which is equivalent to half of that of an extruded sheet, and the rigid polyurethane foam is the lowest thermal conductivity coefficient of all heat preservation 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 insulation of cold storages, pipeline heat preservation materials, building boards, refrigerated trucks, heat insulation materials of cold storages and the like.
The existing polyurethane foam composition has good thermal insulation performance, but has poor mechanical impact performance, and the two cannot be coordinated and consistent, so that the invention provides the polyurethane foam composition and the preparation method thereof.
Disclosure of Invention
In view of the drawbacks of the prior art, the object of the present invention is to provide a polyurethane foam composition and a method for preparing the same, which solves the problems mentioned in the background art.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the invention provides a polyurethane foam composition, which comprises the following raw materials in parts by weight:
60-70 parts of polyester polyol, 30-40 parts of isocyanate, 4-8 parts of organic active polymer modified composite bentonite, 1-5 parts of foaming agent, 1-3 parts of cross-linking agent and 1-2 parts of foaming modified additive.
Preferably, the polyurethane foam composition is prepared from the following raw materials in parts by weight:
65 parts of polyester polyol, 35 parts of isocyanate, 6 parts of organic active polymer modified composite bentonite, 3 parts of foaming agent, 2 parts of cross-linking agent and 1.5 parts of foaming modified additive.
Preferably, the preparation method of the organic active polymer modified composite bentonite comprises the following steps:
the method comprises the following steps: adding phenol and formaldehyde into a reaction kettle according to the weight ratio of 1:2, then stirring and mixing fully, adding sodium hydroxide accounting for 10-20% of the total weight of the phenol, and reacting at the temperature of 60-70 ℃ for 15-25min to obtain a first organic reactant;
step two: then, mixing melamine and paraformaldehyde according to a weight ratio of 1:3, then adding water and alkali, reacting for 25-35min at 75-85 ℃, then adding terephthalaldehyde, and adjusting the pH value to 7.5 to obtain a second organic reactant;
step three: the first organic reactant, the second organic reactant and the active medium body are reacted according to the weight ratio of 2:1:5, the reaction is carried out for 25-35min at the temperature of 75-85 ℃, the reaction speed is 500-1000r/min, and the reaction is finished, so that the active polymerization modified body is obtained:
step four: adding the bentonite-graphene complex into the active polymer modified body according to the weight ratio of 1:7, reacting for 25-35min at 75-85 ℃, wherein the reaction speed is 500-.
Preferably, the preparation method of the active medium body comprises the following steps:
s1: adding glucuronolactone into an acetone solvent according to the weight ratio of 1:5, mixing, and fully stirring to obtain a medium reactant;
s2: preparing a 4-5% chitosan solution by using glacial acetic acid with the mass fraction of 2-5%, adding the chitosan solution into a medium reaction body according to the weight ratio of 1:5, and fully stirring to obtain the active medium body.
Preferably, the preparation method of the bentonite-graphene composite body comprises the following steps:
s1: sending the graphene into a grinding machine for grinding at the grinding speed of 1000-1500r/min for 20-30min to obtain modified flake graphene;
s2: calcining the bentonite at the temperature of 500-700 ℃ for 10-30min to obtain the expansive bentonite;
s3: and (3) sending the modified sheet graphene and the expandable bentonite into deionized water for ultrasonic dispersion, standing at-5 ℃ for 10-20min after the ultrasonic treatment is finished, recovering to room temperature after the standing is finished, and then washing and drying to obtain the bentonite-graphene composite.
Preferably, the ultrasonic power is 200W, and the ultrasonic treatment is carried out for 10-20 min.
Preferably, the foaming agent is any one of azodiisobutyronitrile, p-toluenesulfonyl hydrazide, dinitrosopentamethylenetetramine, or p-toluenesulfonyl azide or a combination of at least two of the same.
Preferably, the polyester polyol is prepared by the polycondensation reaction of one or a mixture of more of ethylene glycol, diethylene glycol, 1, 4-butanediol, glycerol and trimethylolpropane and adipic acid, and the number average molecular weight is 1000-2500;
the isocyanate is one or more of pure MDI, carbodiimide modified MDI, MDI-50 or polymeric MDI.
Preferably, the cross-linking agent is one or more of diethanolamine, glycerol, pentaerythritol, and trimethylolpropane.
Preferably, the preparation method of the foaming modification additive comprises the following steps: adding a rare earth lanthanum chloride solution with the mass fraction of 1-5% into polyoxyethylene ether according to the weight ratio of 1:4, then adding a silane coupling agent Kh560 with the total amount of 10-20% of the rare earth lanthanum chloride solution, stirring at the rotation speed of 500r/min for 20-30min, and obtaining the foaming modification additive after the stirring is finished.
The invention also provides a preparation method of the polyurethane foam composition, which comprises the following steps:
step one, sequentially adding polyester polyol, isocyanate, organic active polymer modified composite bentonite, a foaming agent, a cross-linking agent and a foaming modification additive into a stirrer for mixing treatment, wherein the mixing rotation speed is 300-500r/min, and the mixing time is 10-20min, so as to obtain a material to be foamed;
and secondly, injecting the material to be foamed into a foaming mold cavity through a foaming machine, wherein the foaming time is 10-20min, the foaming rotating speed is 100-500r/min, electron beam irradiation is adopted during foaming, the irradiation dose is 1-3KGy, and the foaming is finished to obtain the polyurethane foam composition.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention adopts polyester polyol, isocyanate, foaming agent and cross-linking agent to be matched for use, and adds organic active polymer modified composite bentonite and foaming modified additive to improve the mechanical property and the heat insulation property of the product.
2. The organic active polymer modified composite bentonite is prepared by adopting an active polymer modified body prepared by reacting a first organic reactant, a second organic reactant and an active medium body to carry out improved treatment on a bentonite-graphene composite body;
in the preparation of the bentonite-graphene complex, graphene is ground into a thinner sheet structure, the bentonite is subjected to calcination, interlayer spacing expansion, the sheet graphene is inserted into the interlayer spacing through ultrasonic dispersion in deionized water, and the bentonite layer spacing is contracted through improvement at-5 ℃, so that the formed bentonite-graphene complex has the barrier property of the bentonite, the heat preservation effect is improved, the graphene sheet toughness impact property is also realized, the mechanical property of the product is improved, the graphene sheet has the barrier effect, and the heat preservation effect of the product can be obviously improved by the bentonite-graphene complex.
3. The first organic reactant in the organic active polymer adopts phenolic resin prepared from phenol and formaldehyde and melamine of a second organic reactant, the phenolic resin is combined through multiple active groups in the melamine, the formed organic system has stronger stability, and an active medium body prepared from glucuronolactone and chitosan solution has multiple active groups, so that the prepared active polymer modification body has three-dimensional multiple active groups and participates in improving a bentonite-graphene complex, and the bentonite-graphene complex can be better participated in a product system in organic foaming after modification, so that the organic system is more stable, and the mechanical property and the heat preservation property of the product are obviously improved.
4. The foaming modification additive adopts the proportion of rare earth lanthanum chloride solution and polyoxyethylene ether, the silane coupling agent Kh560 is added in a mixing way, the bonding strength between the raw materials is improved, and meanwhile, the foaming degree and the crosslinking degree of the product are improved by adopting the irradiation of electron beams in the foaming process, so that the mechanical property and the heat insulation property of the product are improved.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to specific embodiments, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The polyurethane foam composition of the embodiment comprises the following raw materials in parts by weight:
60-70 parts of polyester polyol, 30-40 parts of isocyanate, 4-8 parts of organic active polymer modified composite bentonite, 1-5 parts of foaming agent, 1-3 parts of cross-linking agent and 1-2 parts of foaming modified additive;
the polyurethane foam composition of the embodiment is prepared from the following raw materials in parts by weight:
65 parts of polyester polyol, 35 parts of isocyanate, 6 parts of organic active polymer modified composite bentonite, 3 parts of foaming agent, 2 parts of cross-linking agent and 1.5 parts of foaming modified additive.
The preparation method of the organic active polymer modified composite bentonite of the embodiment comprises the following steps:
the method comprises the following steps: adding phenol and formaldehyde into a reaction kettle according to the weight ratio of 1:2, then stirring and mixing fully, adding sodium hydroxide accounting for 10-20% of the total weight of the phenol, and reacting at the temperature of 60-70 ℃ for 15-25min to obtain a first organic reactant;
step two: then, mixing melamine and paraformaldehyde according to a weight ratio of 1:3, then adding water and alkali, reacting for 25-35min at 75-85 ℃, then adding terephthalaldehyde, and adjusting the pH value to 7.5 to obtain a second organic reactant;
step three: the first organic reactant, the second organic reactant and the active medium body react according to the weight ratio of 2:1:5, the reaction is carried out for 25-35min at the temperature of 75-85 ℃, the reaction rotation speed is 500-1000r/min, and the modified body of the active polymer is obtained after the reaction is finished:
step four: adding the bentonite-graphene complex into the active polymer modified body according to the weight ratio of 1:7, reacting for 25-35min at 75-85 ℃, wherein the reaction speed is 500-.
The preparation method of the active medium body of the embodiment comprises the following steps:
s1: adding glucuronolactone into an acetone solvent according to the weight ratio of 1:5, mixing, and fully stirring to obtain a medium reactant;
s2: preparing 4-5% chitosan solution with glacial acetic acid with the mass fraction of 2-5%, adding the chitosan solution into the medium reactant according to the weight ratio of 1:5, and fully stirring to obtain the active medium.
The preparation method of the bentonite-graphene composite in this embodiment comprises:
s1: sending the graphene into a grinding machine for grinding at the grinding speed of 1000-1500r/min for 20-30min to obtain modified flake graphene;
s2: calcining the bentonite at the temperature of 500-700 ℃ for 10-30min to obtain the expansive bentonite;
s3: and (3) sending the modified sheet graphene and the expandable bentonite into deionized water for ultrasonic dispersion, standing at-5 ℃ for 10-20min after the ultrasonic treatment is finished, recovering to room temperature after the standing is finished, and then washing and drying to obtain the bentonite-graphene composite.
The ultrasonic power of the embodiment is 200W, and the ultrasonic treatment is carried out for 10-20 min.
The blowing agent of this example is any one of azobisisobutyronitrile, p-toluenesulfonyl hydrazide, dinitrosopentamethylenetetramine, or p-toluenesulfonyl azide, or a combination of at least two thereof.
The polyester polyol of the embodiment is prepared by the polycondensation reaction of one or a mixture of more of ethylene glycol, diethylene glycol, 1, 4-butanediol, glycerol and trimethylolpropane and adipic acid, and the number average molecular weight is 1000-2500;
the isocyanate is one or more of pure MDI, carbodiimide modified MDI, MDI-50 or polymeric MDI.
The cross-linking agent of the embodiment is one or a combination of diethanolamine, glycerol, pentaerythritol and trimethylolpropane.
The preparation method of the foam modifying additive of the embodiment comprises the following steps: adding a rare earth lanthanum chloride solution with the mass fraction of 1-5% into polyoxyethylene ether according to the weight ratio of 1:4, then adding a silane coupling agent Kh560 with the total amount of 10-20% of the rare earth lanthanum chloride solution, stirring at the rotation speed of 500r/min for 20-30min, and obtaining the foaming modification additive after the stirring is finished.
The preparation method of the polyurethane foam composition of the embodiment comprises the following steps:
step one, sequentially adding polyester polyol, isocyanate, organic active polymer modified composite bentonite, a foaming agent, a cross-linking agent and a foaming modification additive into a stirrer for mixing treatment, wherein the mixing rotation speed is 300-500r/min, and the mixing time is 10-20min, so as to obtain a material to be foamed;
and secondly, injecting the material to be foamed into a foaming mold cavity through a foaming machine, wherein the foaming time is 10-20min, the foaming rotating speed is 100-500r/min, electron beam irradiation is adopted during foaming, the irradiation dose is 1-3KGy, and the foaming is finished to obtain the polyurethane foam composition.
Example 1.
The polyurethane foam composition of the embodiment comprises the following raw materials in parts by weight:
60 parts of polyester polyol, 30 parts of isocyanate, 4 parts of organic active polymer modified composite bentonite, 1 part of foaming agent, 1 part of cross-linking agent and 1 part of foaming modified additive;
the preparation method of the organic active polymer modified composite bentonite of the embodiment comprises the following steps:
the method comprises the following steps: adding phenol and formaldehyde into a reaction kettle according to the weight ratio of 1:2, then stirring and mixing fully, adding sodium hydroxide accounting for 10% of the total weight of the phenol, and reacting at the temperature of 60 ℃ for 15min to obtain a first organic reactant;
step two: then, mixing melamine and paraformaldehyde according to a weight ratio of 1:3, then adding water and alkali, reacting for 25min at 75 ℃, then adding terephthalaldehyde, and adjusting the pH value to 7.5 to obtain a second organic reactant;
step three: reacting the first organic reactant, the second organic reactant and the active medium body according to the weight ratio of 2:1:5, reacting for 25min at 75 ℃, wherein the reaction speed is 500r/min, and obtaining the active polymerization modified body after the reaction is finished:
step four: adding the bentonite-graphene complex into the active polymer modified body according to the weight ratio of 1:7, reacting for 25min at 75 ℃, wherein the reaction speed is 500r/min, and obtaining the organic active polymer modified composite bentonite after the reaction is finished.
The preparation method of the active medium body of the embodiment comprises the following steps:
s1: adding glucuronolactone into an acetone solvent according to the weight ratio of 1:5, mixing, and fully stirring to obtain a medium reactant;
s2: preparing 4% chitosan solution by using glacial acetic acid with the mass fraction of 2%, adding the chitosan solution into a medium reaction body according to the weight ratio of 1:5, and fully stirring to obtain the active medium body.
The preparation method of the bentonite-graphene composite body of the embodiment comprises the following steps:
s1: feeding graphene into a grinder for grinding at the grinding speed of 1000r/min for 20min to obtain modified flake graphene;
s2: calcining the bentonite at 500 ℃ for 10min to obtain expandable bentonite;
s3: and (3) sending the modified sheet graphene and the expandable bentonite into deionized water for ultrasonic dispersion, standing at-5 ℃ for 10min after the ultrasonic treatment is finished, recovering the room temperature after the standing is finished, and then washing and drying to obtain the bentonite-graphene composite.
The ultrasonic power of the present embodiment is 200W, and the ultrasonic time is 10 min.
The blowing agent of this example was azobisisobutyronitrile.
The polyester polyol is prepared by the polycondensation of ethylene glycol and adipic acid, and the number average molecular weight is 1000-2500;
the isocyanate was pure MDI.
The crosslinker in this example was diethanolamine.
The preparation method of the foam modifying additive of the embodiment comprises the following steps: adding a rare earth lanthanum chloride solution with the mass fraction of 1-5% into polyoxyethylene ether according to the weight ratio of 1:4, then adding a silane coupling agent Kh560 with the total amount of 10% of the rare earth lanthanum chloride solution, stirring at the rotating speed of 100r/min for 20min, and obtaining the foaming modification additive after stirring.
The preparation method of the polyurethane foam composition of the embodiment comprises the following steps:
step one, sequentially adding polyester polyol, isocyanate, organic active polymer modified composite bentonite, a foaming agent, a cross-linking agent and a foaming modified additive into a stirrer for mixing treatment, wherein the mixing rotation speed is 300r/min, and the mixing time is 10min to obtain a material to be foamed;
and step two, injecting the material to be foamed into a foaming mold cavity through a foaming machine, wherein the foaming time is 10min, the foaming rotation speed is 100r/min, electron beam irradiation is adopted during foaming, the irradiation dose is 1KGy, and the foaming is finished to obtain the polyurethane foam composition.
Example 2.
The polyurethane foam composition of the embodiment comprises the following raw materials in parts by weight:
70 parts of polyester polyol, 40 parts of isocyanate, 8 parts of organic active polymer modified composite bentonite, 5 parts of foaming agent, 3 parts of cross-linking agent and 2 parts of foaming modified additive;
the preparation method of the organic active polymer modified composite bentonite of the embodiment comprises the following steps:
the method comprises the following steps: adding phenol and formaldehyde into a reaction kettle according to the weight ratio of 1:2, then stirring and mixing fully, adding sodium hydroxide accounting for 20% of the total weight of the phenol, and reacting at the temperature of 70 ℃ for 25min to obtain a first organic reactant;
step two: then, mixing melamine and paraformaldehyde according to a weight ratio of 1:3, then adding water and alkali, reacting for 35min at 85 ℃, then adding terephthalaldehyde, and adjusting the pH value to 7.5 to obtain a second organic reactant;
step three: reacting the first organic reactant, the second organic reactant and the active medium body according to the weight ratio of 2:1:5, reacting at 85 ℃ for 35min at the reaction speed of 1000r/min, and obtaining an active polymerization modified body after the reaction is finished:
step four: adding the bentonite-graphene complex into the active polymer modified body according to the weight ratio of 1:7, reacting at 85 ℃ for 35min at the reaction speed of 1000r/min, and finishing the reaction to obtain the organic active polymer modified composite bentonite.
The preparation method of the active medium body of the embodiment comprises the following steps:
s1: adding glucuronolactone into an acetone solvent according to the weight ratio of 1:5, mixing, and fully stirring to obtain a medium reactant;
s2: preparing 5% chitosan solution by using glacial acetic acid with the mass fraction of 5%, adding the chitosan solution into a medium reaction body according to the weight ratio of 1:5, and fully stirring to obtain the active medium body.
The preparation method of the bentonite-graphene composite in this embodiment comprises:
s1: feeding graphene into a grinder for grinding at a grinding speed of 1500r/min for 30min to obtain modified flake graphene;
s2: calcining the bentonite at 700 ℃ for 30min to obtain expandable bentonite;
s3: and (3) sending the modified sheet graphene and the expandable bentonite into deionized water for ultrasonic dispersion, standing at-5 ℃ for 20min after the ultrasonic treatment is finished, recovering the room temperature after the standing is finished, and then washing and drying to obtain the bentonite-graphene complex.
The ultrasonic power of the present embodiment is 200W, and the ultrasonic time is 20 min.
The blowing agent in this example was p-toluenesulfonylhydrazide
The polyester polyol is prepared by the polycondensation of diethylene glycol and adipic acid, and the number average molecular weight is 1000-;
the isocyanate is carbodiimide modified MDI.
The crosslinker in this example was pentaerythritol.
The preparation method of the foam modifying additive of the embodiment comprises the following steps: adding a rare earth lanthanum chloride solution with the mass fraction of 1-5% into polyoxyethylene ether according to the weight ratio of 1:4, then adding a silane coupling agent Kh560 with the total amount of 20% of the rare earth lanthanum chloride solution, stirring at the rotating speed of 500r/min for 30min, and obtaining the foaming modification additive after stirring.
The preparation method of the polyurethane foam composition of the embodiment comprises the following steps:
step one, sequentially adding polyester polyol, isocyanate, organic active polymer modified composite bentonite, a foaming agent, a cross-linking agent and a foaming modified additive into a stirrer for mixing treatment, wherein the mixing rotation speed is 500r/min, and the mixing time is 20min to obtain a material to be foamed;
and secondly, injecting the material to be foamed into a foaming mold cavity through a foaming machine, wherein the foaming time is 20min, the foaming rotating speed is 500r/min, electron beam irradiation is adopted in foaming, the irradiation dose is 3KGy, and the foaming is finished to obtain the polyurethane foam composition.
Example 3.
The polyurethane foam composition of the embodiment comprises the following raw materials in parts by weight:
65 parts of polyester polyol, 35 parts of isocyanate, 6 parts of organic active polymer modified composite bentonite, 3 parts of foaming agent, 2 parts of cross-linking agent and 1.5 parts of foaming modified additive.
The preparation method of the organic active polymer modified composite bentonite of the embodiment comprises the following steps:
the method comprises the following steps: adding phenol and formaldehyde into a reaction kettle according to the weight ratio of 1:2, then stirring and mixing fully, adding sodium hydroxide accounting for 15% of the total weight of the phenol, and reacting at the temperature of 65 ℃ for 20min to obtain a first organic reactant;
step two: then, mixing melamine and paraformaldehyde according to a weight ratio of 1:3, then adding water and alkali, reacting for 30min at 80 ℃, then adding terephthalaldehyde, and adjusting the pH value to 7.5 to obtain a second organic reactant;
step three: reacting the first organic reactant, the second organic reactant and the active medium body according to the weight ratio of 2:1:5, reacting for 30min at 80 ℃, wherein the reaction speed is 750r/min, and obtaining the active polymerization modified body after the reaction is finished:
step four: adding the bentonite-graphene composite into the active polymer modified body according to the weight ratio of 1:7, reacting at 80 ℃ for 30min at the reaction speed of 750r/min, and finishing the reaction to obtain the organic active polymer modified composite bentonite.
The preparation method of the active medium body of the embodiment comprises the following steps:
s1: adding glucuronolactone into an acetone solvent according to the weight ratio of 1:5, mixing, and fully stirring to obtain a medium reactant;
s2: preparing 4.5% chitosan solution by using glacial acetic acid with the mass fraction of 3.5%, adding the chitosan solution into a medium reaction body according to the weight ratio of 1:5, and fully stirring to obtain the active medium body.
The preparation method of the bentonite-graphene composite body of the embodiment comprises the following steps:
s1: feeding the graphene into a grinder for grinding at a grinding speed of 1250r/min for 25min to obtain modified flake graphene;
s2: calcining the bentonite at the temperature of 600 ℃ for 20min to obtain expandable bentonite;
s3: and (3) sending the modified sheet graphene and the expandable bentonite into deionized water for ultrasonic dispersion, standing at-5 ℃ for 15min after the ultrasonic treatment is finished, recovering the room temperature after the standing is finished, and then washing and drying to obtain the bentonite-graphene complex.
The ultrasonic power of the present embodiment is 200W, and the ultrasonic time is 15 min.
The blowing agent of this example was dinitrosopentamethylenetetramine.
The polyester polyol of the embodiment is prepared by the polycondensation of 1, 4-butanediol and adipic acid, and the number average molecular weight is 1000-;
the isocyanate is carbodiimide modified MDI.
The crosslinking agent of this example was glycerol.
The preparation method of the foam modifying additive of the embodiment comprises the following steps: adding a rare earth lanthanum chloride solution with the mass fraction of 2% into polyoxyethylene ether according to the weight ratio of 1:4, then adding a silane coupling agent Kh560 with the total amount of 15% of the rare earth lanthanum chloride solution, stirring at the rotating speed of 300r/min for 25min, and obtaining the foaming modification additive after stirring.
The preparation method of the polyurethane foam composition of the embodiment comprises the following steps:
step one, sequentially adding polyester polyol, isocyanate, organic active polymer modified composite bentonite, a foaming agent, a cross-linking agent and a foaming modified additive into a stirrer for mixing treatment, wherein the mixing rotation speed is 400r/min, and the mixing time is 15min, so as to obtain a material to be foamed;
and secondly, injecting the material to be foamed into a foaming mold cavity through a foaming machine, wherein the foaming time is 15min, the foaming rotating speed is 300r/min, electron beam irradiation is adopted in foaming, the irradiation dose is 2KGy, and the foaming is finished to obtain the polyurethane foam composition.
Comparative example 1.
The difference from example 3 is that no organic active polymer is added to modify the composite bentonite.
Comparative example 2.
In contrast to example 3, no foam-modifying additive was added.
Comparative example 3.
Unlike example 3, no electron beam irradiation was performed.
The performance of the products of examples 1-3 and comparative examples 1-3 was tested as follows:
as can be seen from examples 1-3 and comparative examples 1-3, the product of example 3 of the invention has excellent strength performance and thermal insulation performance, and the product performance is influenced to a certain extent by adding the organic active polymer modified composite bentonite and the foaming modification additive.
The preparation method of the organic active polymer modified composite bentonite comprises the following steps:
the method comprises the following steps: adding phenol and formaldehyde into a reaction kettle according to the weight ratio of 1:2, then stirring and mixing fully, adding sodium hydroxide accounting for 15% of the total weight of the phenol, and reacting at the temperature of 65 ℃ for 20min to obtain a first organic reactant;
step two: then mixing melamine and paraformaldehyde according to a weight ratio of 1:3, then adding water and alkali, reacting for 30min at 80 ℃, then adding terephthalaldehyde, and adjusting the pH value to 7.5 to obtain a second organic reactant;
step three: reacting the first organic reactant, the second organic reactant and the active medium body according to the weight ratio of 2:1:5, reacting for 30min at 80 ℃, wherein the reaction speed is 750r/min, and obtaining the active polymerization modified body after the reaction is finished:
step four: adding the bentonite-graphene complex into the active polymer modified body according to the weight ratio of 1:7, reacting at 80 ℃ for 30min at the reaction speed of 750r/min, and obtaining the organic active polymer modified composite bentonite after the reaction is finished.
The invention further researches, develops and processes the organic active polymer modified composite bentonite.
Experimental example 1
The product feed was the same as that of example 3 except that no second organic reactant was added.
Experimental example 2
The same starting material as the product of example 3, except that no active medium was added.
Experimental example 3
The raw materials are the same as those of the product in example 3, except that the bentonite-graphene composite adopts a graphene monomer.
Experimental example 4
The same raw materials as those of the product in example 3 were used except that a bentonite monomer was used for the bentonite-graphene composite.
In the preparation of the organic active polymer modified composite bentonite, the bentonite-graphene complex adopts a single graphene monomer or a single bentonite monomer, the product performance is deteriorated, and meanwhile, the second organic reactant and the active medium body have certain advantages for improving the product performance.
The preparation method of the bentonite-graphene complex is further explored:
the preparation method of the bentonite-graphene composite comprises the following steps:
s1: feeding the graphene into a grinder for grinding at a grinding speed of 1250r/min for 25min to obtain modified flake graphene;
s2: calcining the bentonite at the temperature of 600 ℃ for 20min to obtain expandable bentonite;
s3: and (3) sending the modified sheet graphene and the expandable bentonite into deionized water for ultrasonic dispersion, standing at-5 ℃ for 15min after the ultrasonic treatment is finished, recovering the room temperature after the standing is finished, and then washing and drying to obtain the bentonite-graphene complex.
Comparative example 3 test: in the graphene modification of the product, grinding treatment is not carried out;
comparative experiment example 4 test: the bentonite is not calcined;
comparative example 3 test: placing the modified sheet graphene and the expandable bentonite at a temperature of-5 ℃ for 15 min; through experimental tests, the product graphene is not ground, calcined by bentonite and placed at-5 ℃, and the tensile strength, the elongation at break and the heat conductivity coefficient of the product are all deteriorated.
The bentonite-graphene composite has the advantages that graphene is ground into a thinner sheet structure in the preparation of the bentonite-graphene composite, the bentonite is calcined, interlayer spacing is expanded, the sheet graphene is inserted into the interlayer spacing through ultrasonic dispersion in deionized water, and the interlayer spacing of the bentonite is shrunk through improvement at the temperature of-5 ℃, so that the formed bentonite-graphene composite has the barrier property of the bentonite, the heat preservation effect is improved, the graphene sheet toughness impact property is realized, the mechanical property of the product is improved, the sheet of the graphene has the barrier effect, and the heat preservation effect of the product can be obviously improved by the bentonite-graphene composite.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. The polyurethane foam composition is characterized by comprising the following raw materials in parts by weight:
60-70 parts of polyester polyol, 30-40 parts of isocyanate, 4-8 parts of organic active polymer modified composite bentonite, 1-5 parts of foaming agent, 1-3 parts of cross-linking agent and 1-2 parts of foaming modified additive.
2. The polyurethane foam composition as claimed in claim 1, wherein the polyurethane foam composition is prepared from the following raw materials in parts by weight:
65 parts of polyester polyol, 35 parts of isocyanate, 6 parts of organic active polymer modified composite bentonite, 3 parts of foaming agent, 2 parts of cross-linking agent and 1.5 parts of foaming modified additive.
3. The polyurethane foam composition as claimed in claim 1, wherein the organic reactive polymer modified composite bentonite is prepared by:
the method comprises the following steps: adding phenol and formaldehyde into a reaction kettle according to the weight ratio of 1:2, then stirring and mixing fully, adding sodium hydroxide accounting for 10-20% of the total weight of the phenol, and reacting at the temperature of 60-70 ℃ for 15-25min to obtain a first organic reactant;
step two: then, mixing melamine and paraformaldehyde according to a weight ratio of 1:3, then adding water and alkali, reacting for 25-35min at 75-85 ℃, then adding terephthalaldehyde, and adjusting the pH value to 7.5 to obtain a second organic reactant;
step three: the first organic reactant, the second organic reactant and the active medium body react according to the weight ratio of 2:1:5, the reaction is carried out for 25-35min at the temperature of 75-85 ℃, the reaction rotation speed is 500-1000r/min, and the modified body of the active polymer is obtained after the reaction is finished:
step four: adding the bentonite-graphene complex into the active polymer modified body according to the weight ratio of 1:7, reacting for 25-35min at 75-85 ℃, wherein the reaction speed is 500-1000r/min, and obtaining the organic active polymer modified composite bentonite after the reaction is finished.
4. The polyurethane foam composition of claim 3, wherein the reactive media is prepared by:
s1: adding glucuronolactone into an acetone solvent according to the weight ratio of 1:5, mixing, and fully stirring to obtain a medium reactant;
s2: preparing 4-5% chitosan solution with glacial acetic acid with the mass fraction of 2-5%, adding the chitosan solution into the medium reactant according to the weight ratio of 1:5, and fully stirring to obtain the active medium.
5. The polyurethane foam composition as claimed in claim 3, wherein the bentonite-graphene composite is prepared by:
s1: sending the graphene into a grinding machine for grinding at the grinding speed of 1000-1500r/min for 20-30min to obtain modified flake graphene;
s2: calcining the bentonite at the temperature of 500-700 ℃ for 10-30min to obtain the expansive bentonite;
s3: and (3) sending the modified flake graphene and the expandable bentonite into deionized water for ultrasonic dispersion, standing at-5 ℃ for 10-20min after the ultrasonic dispersion is finished, recovering the room temperature after the standing is finished, and then washing and drying to obtain the bentonite-graphene complex.
6. The polyurethane foam composition as claimed in claim 5, wherein the ultrasonic power is 200W, and the ultrasonic is carried out for 10-20 min.
7. The polyurethane foam composition of claim 1, wherein the blowing agent is any one of azodiisobutyronitrile, p-toluenesulfonyl hydrazide, dinitrosopentamethylene tetramine, or p-toluenesulfonyl azide, or a combination of at least two thereof.
8. The polyurethane foam composition as claimed in claim 1, wherein the polyester polyol is prepared by polycondensation of one or more of ethylene glycol, diethylene glycol, 1, 4-butanediol, glycerol, trimethylolpropane and adipic acid, and has a number average molecular weight of 1000-;
the isocyanate is one or more of pure MDI, carbodiimide modified MDI, MDI-50 or polymeric MDI;
the cross-linking agent is one or a combination of diethanolamine, glycerol, pentaerythritol and trimethylolpropane.
9. The polyurethane foam composition of claim 1, wherein the foam modifying additive is prepared by: adding a rare earth lanthanum chloride solution with the mass fraction of 1-5% into polyoxyethylene ether according to the weight ratio of 1:4, then adding a silane coupling agent Kh560 with the total amount of 10-20% of the rare earth lanthanum chloride solution, stirring at the rotation speed of 500r/min for 20-30min, and obtaining the foaming modification additive after the stirring is finished.
10. A process for preparing a polyurethane foam composition as claimed in any one of claims 1 to 9 comprising the steps of:
step one, sequentially adding polyester polyol, isocyanate, organic active polymer modified composite bentonite, a foaming agent, a cross-linking agent and a foaming modification additive into a stirrer for mixing treatment, wherein the mixing rotation speed is 300-500r/min, and the mixing time is 10-20min, so as to obtain a material to be foamed;
and secondly, injecting the material to be foamed into a foaming mold cavity through a foaming machine, wherein the foaming time is 10-20min, the foaming rotating speed is 100-500r/min, electron beam irradiation is adopted during foaming, the irradiation dose is 1-3KGy, and the foaming is finished to obtain the polyurethane foam composition.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114949941A (en) * | 2022-08-01 | 2022-08-30 | 广州嘉德乐生化科技有限公司 | Defoaming agent containing glyceryl monostearate and application of defoaming agent in medical industry |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104672788A (en) * | 2015-03-09 | 2015-06-03 | 上海材料研究所 | Micro-crosslinking modified polyester elastomer microcellular-foamed material and preparation method thereof |
| CN112661925A (en) * | 2020-12-14 | 2021-04-16 | 安徽艾米伦特建材科技有限公司 | Flame-retardant polyurethane foaming thermal insulation material for thermal insulation sandwich board and preparation method thereof |
-
2022
- 2022-03-16 CN CN202210258139.0A patent/CN114716641A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104672788A (en) * | 2015-03-09 | 2015-06-03 | 上海材料研究所 | Micro-crosslinking modified polyester elastomer microcellular-foamed material and preparation method thereof |
| CN112661925A (en) * | 2020-12-14 | 2021-04-16 | 安徽艾米伦特建材科技有限公司 | Flame-retardant polyurethane foaming thermal insulation material for thermal insulation sandwich board and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114949941A (en) * | 2022-08-01 | 2022-08-30 | 广州嘉德乐生化科技有限公司 | Defoaming agent containing glyceryl monostearate and application of defoaming agent in medical industry |
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