CN105085971B - HFC-245eb type combined polyether for spraying polyurethane plastic and preparation method thereof - Google Patents
HFC-245eb type combined polyether for spraying polyurethane plastic and preparation method thereof Download PDFInfo
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- 229920000570 polyether Polymers 0.000 title claims abstract description 60
- 239000004721 Polyphenylene oxide Substances 0.000 title claims abstract description 54
- ZDCWZRQSHBQRGN-UHFFFAOYSA-N 1,1,1,2,3-pentafluoropropane Chemical compound FCC(F)C(F)(F)F ZDCWZRQSHBQRGN-UHFFFAOYSA-N 0.000 title claims abstract description 27
- 229920003023 plastic Polymers 0.000 title claims abstract description 27
- 239000004033 plastic Substances 0.000 title claims abstract description 27
- 238000005507 spraying Methods 0.000 title claims abstract description 27
- 229920002635 polyurethane Polymers 0.000 title claims abstract description 26
- 239000004814 polyurethane Substances 0.000 title claims abstract description 26
- 238000002360 preparation method Methods 0.000 title claims abstract description 8
- 229920005862 polyol Polymers 0.000 claims abstract description 31
- 150000003077 polyols Chemical class 0.000 claims abstract description 31
- 239000003054 catalyst Substances 0.000 claims abstract description 29
- 239000006260 foam Substances 0.000 claims abstract description 20
- 239000004088 foaming agent Substances 0.000 claims abstract description 14
- 239000000654 additive Substances 0.000 claims abstract description 11
- 230000000996 additive effect Effects 0.000 claims abstract description 11
- 239000003063 flame retardant Substances 0.000 claims abstract description 11
- 239000002994 raw material Substances 0.000 claims abstract description 11
- 239000003381 stabilizer Substances 0.000 claims abstract description 11
- 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 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 claims description 50
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 12
- 239000003999 initiator Substances 0.000 claims description 10
- 229920005906 polyester polyol Polymers 0.000 claims description 9
- 239000004604 Blowing Agent Substances 0.000 claims description 8
- 239000002131 composite material Substances 0.000 claims description 8
- 150000005846 sugar alcohols Polymers 0.000 claims description 8
- IMNIMPAHZVJRPE-UHFFFAOYSA-N triethylenediamine Chemical compound C1CN2CCN1CC2 IMNIMPAHZVJRPE-UHFFFAOYSA-N 0.000 claims description 8
- 239000003795 chemical substances by application Substances 0.000 claims description 7
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 6
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 5
- SVYKKECYCPFKGB-UHFFFAOYSA-N N,N-dimethylcyclohexylamine Chemical compound CN(C)C1CCCCC1 SVYKKECYCPFKGB-UHFFFAOYSA-N 0.000 claims description 4
- YSMRWXYRXBRSND-UHFFFAOYSA-N TOTP Chemical group CC1=CC=CC=C1OP(=O)(OC=1C(=CC=CC=1)C)OC1=CC=CC=C1C YSMRWXYRXBRSND-UHFFFAOYSA-N 0.000 claims description 3
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 3
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 claims description 3
- 239000012975 dibutyltin dilaurate Substances 0.000 claims description 3
- ZTGZJVIWOYXVRD-UHFFFAOYSA-N 3-[1-[3-(dimethylamino)propyl]triazinan-5-yl]-N,N-dimethylpropan-1-amine Chemical class CN(C)CCCN1NNCC(C1)CCCN(C)C ZTGZJVIWOYXVRD-UHFFFAOYSA-N 0.000 claims description 2
- 235000019482 Palm oil Nutrition 0.000 claims description 2
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 claims description 2
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 claims description 2
- 229930006000 Sucrose Natural products 0.000 claims description 2
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical group OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- 239000002540 palm oil Substances 0.000 claims description 2
- 238000006116 polymerization reaction Methods 0.000 claims description 2
- 239000005720 sucrose Substances 0.000 claims description 2
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical group C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 claims 2
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 claims 1
- 150000001412 amines Chemical class 0.000 claims 1
- 239000004872 foam stabilizing agent Substances 0.000 claims 1
- 229920005830 Polyurethane Foam Polymers 0.000 abstract description 11
- 239000011496 polyurethane foam Substances 0.000 abstract description 11
- 230000007613 environmental effect Effects 0.000 abstract description 9
- 238000004134 energy conservation Methods 0.000 abstract description 4
- 238000004321 preservation Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 230000002195 synergetic effect Effects 0.000 description 4
- FRCHKSNAZZFGCA-UHFFFAOYSA-N 1,1-dichloro-1-fluoroethane Chemical compound CC(F)(Cl)Cl FRCHKSNAZZFGCA-UHFFFAOYSA-N 0.000 description 3
- 238000009835 boiling Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- UKODFQOELJFMII-UHFFFAOYSA-N pentamethyldiethylenetriamine Chemical compound CN(C)CCN(C)CCN(C)C UKODFQOELJFMII-UHFFFAOYSA-N 0.000 description 3
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000012948 isocyanate Substances 0.000 description 2
- 150000002513 isocyanates Chemical class 0.000 description 2
- MWDWMQNTNBHJEI-UHFFFAOYSA-N 1,1,2,3,3-pentafluoropropane Chemical compound FC(F)C(F)C(F)F MWDWMQNTNBHJEI-UHFFFAOYSA-N 0.000 description 1
- HHDUMDVQUCBCEY-UHFFFAOYSA-N 4-[10,15,20-tris(4-carboxyphenyl)-21,23-dihydroporphyrin-5-yl]benzoic acid Chemical group OC(=O)c1ccc(cc1)-c1c2ccc(n2)c(-c2ccc(cc2)C(O)=O)c2ccc([nH]2)c(-c2ccc(cc2)C(O)=O)c2ccc(n2)c(-c2ccc(cc2)C(O)=O)c2ccc1[nH]2 HHDUMDVQUCBCEY-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 125000003916 ethylene diamine group Chemical group 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 229920001228 polyisocyanate Polymers 0.000 description 1
- 239000005056 polyisocyanate Substances 0.000 description 1
- -1 polymethylene Polymers 0.000 description 1
- 229920006389 polyphenyl polymer Polymers 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- CYRMSUTZVYGINF-UHFFFAOYSA-N trichlorofluoromethane Chemical compound FC(Cl)(Cl)Cl CYRMSUTZVYGINF-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Polyurethanes Or Polyureas (AREA)
Abstract
The invention discloses HFC-245eb type combined polyether for spraying polyurethane plastics and a preparation method thereof, wherein the HFC-245eb type combined polyether for spraying polyurethane plastics comprises the following raw materials: 25-170 parts of polyether polyol, 2.2-17 parts of a catalyst, 0-5 parts of a foam stabilizer, 10-35 parts of an additive type flame retardant, 0-2 parts of water and 10-80 parts of a foaming agent HFC-245eb, wherein the parts are in parts by mass. The HFC-245eb type combined polyether for spraying the polyurethane plastic has good heat preservation performance, mechanical strength and size stability by using HFC245eb as a foaming agent; the hard polyurethane foam is automatically extinguished after being away from fire for 0-3S, is safe, environment-friendly, energy-saving and reliable, and meets the national requirements of energy conservation, emission reduction, safety and environmental protection.
Description
Technical field
The HFC-245eb type combined polyether and preparation method thereof that the present invention relates to a kind of for spraying polyurethane plastics belongs to
In polyurethane foam plastics field.
Background technique
Rigid polyurethane foam is the optimal heat insulating energy saving material of our times, is widely used in refrigerator, builds
It builds, communications and transportation, petrochemical industry, aviation are military etc., and heat preserving and insulating material and structural behaviour material are done in fields.However under the pressure of environment
Pressure, the use of existing foaming agent is restricted: according to Montreal Protocol and its subsequent amendment, the U.S. is
HCFC-141b is forbidden to use on January 1st, 2003, Europe has also stopped between 2002-2004 to HCFC-141b and its
The use of its HCFC class speciality；At the beginning of 2009, environmental protection external cooperation center complex Chinese Plastics in Chinese environmental protection portion process work
Industry association expands complete investigation to Chinese hard polyurethane foam R141b consumption, on this basis, Chinese Ministry of Environmental Protection's environmental protection pair
Outer Cooperation Centre entrusts Peking University Environmental Studies Institute and combines Chinese Plastics processing industry association, has worked out " Chinese polyurethane foam
Foam industry HCFCs eliminates plan ", which gets the Green Light in July, 2011, and first stage (2012~2015 years) R141b is washed in a pan
The amount of eliminating is 14685 tons；It will be completely forbidden to the year two thousand thirty and use R141b in foam industry.
Although hydrocarbon blowing agents are because inflammable and explosive, nothing currently, also there is the use of hydrocarbon blowing agents and full water class foaming agent
Method is used in the direct site operation of spraying polyurethane plastics；And full water class foaming agent is because thermal coefficient is higher, dimensional stability phase
To the disadvantages of poor, more demanding to raw material, its popularization and application on spraying polyurethane plastics is limited.Therefore, it finds
A kind of safe and environment-friendly, energy saving, reliable, function admirable foaming agent is extremely urgent.
Summary of the invention
The present invention provides a kind of HFC-245eb type combined polyether and preparation method thereof for spraying polyurethane plastics, institute
With foaming agent environmental protection, safety, energy conservation, reliable, function admirable, prepared rigid polyurethane foam has excellent heat preservation
Performance, mechanical strength and dimensional stability.
In order to solve the above technical problems, the technical solution adopted in the present invention is as follows:
A kind of HFC-245eb type combined polyether for spraying polyurethane plastics, raw material includes following component: polyethers is more
25~170 parts of first alcohol, 2.2~17 parts of catalyst, 0~5 part of foam stabiliser, 10~35 parts of additive flame retardant, 0~2 part of water
With 10~80 parts of blowing agent H FC-245eb, the number be mass fraction.
By above-mentioned each raw material by above-mentioned mass parts put into container for stirring uniformly to get to spraying HFC-245eb type group
Close polyethers.The chemical name of above-mentioned blowing agent H FC-245eb is 1,1,1,2,3- pentafluoropropane.
Applicant it has been investigated that: HFC-245eb is a kind of ideal foaming agent, it have excellent physical characteristic, ring
Guaranteed cost, lower boiling point and compared with low thermal conductivity, compared with HCFC class, HFC-245eb is environmentally friendly, and it is latent to destroy ozone layer
Value ODP is zero, and the latent value GWP of greenhouse effects is lower, molecular weight 134.05g/mol, density 1.267g/m3, 23 DEG C of boiling point and non-
Inflammable nontoxicity colourless gas, becomes the staple product that spraying field carries out ODS substitution；Compared with CFC-11 and HCFC-141b,
HFC-245eb has lower boiling point and higher vapour pressure, can improve certain characteristics of foam, the property especially under low temperature
Can, make foam that there is stronger mechanical performance in certain temperature range.
Pass through hard polyurethane foams prepared by the above-mentioned HFC-245eb type combined polyether for spraying polyurethane plastics
Plastic shaping density is in 30~60kg/m3, there is excellent thermal insulation property, mechanical strength and dimensional stability.
The application substitutes the HCFC class foaming agent that is gradually eliminated in the application in spraying field with blowing agent H FC-245eb,
In the case where existing spray coating constructing technique is constant, gained polyurethane rigid foam plastic has safe and environment-friendly, thermal coefficient
Low advantage meets the requirement of national energy conservation and emission reduction safety and environmental protection；And it is low in cost, it is highly-safe.
It is preferred that the HFC-245eb type combined polyether for spraying polyurethane plastics, raw material include following component: polyethers
65~130 parts of polyalcohol, 4.3~14 parts of catalyst, 1.5~3.5 parts of foam stabiliser, 25~33 parts of additive flame retardant, water 1
~1.5 parts and 25~40 parts of blowing agent H FC-245eb, the number is mass fraction.
The technical issues of existing various common polyether polyol can solve the application, but in order to further increase gained
The performances such as heat insulating ability, mechanical strength and the dimensional stability of rigid polyurethane foam, it is preferable that polyether polyol includes: poly-
I 10~40 parts of ethoxylated polyhydric alcohol, II 0~50 parts of polyether polyol, III 0~20 parts of polyether polyol and polyester polyol IV 15~60
Part, the number is mass fraction；Wherein, the degree of functionality of polyether polyol I is 4~6, and hydroxyl value is 390~550mgKOH/g, is glued
Spend (25 DEG C) 4000~20000cp；The degree of functionality of polyether polyol II is 4~6, and hydroxyl value is 350~480mgKOH/g, viscosity
(25 DEG C) 2000~16000cp；The degree of functionality of polyether polyol III is 3~5, and hydroxyl value is 700~900mgKOH/g, viscosity (50
DEG C) 1000~4000cp；The degree of functionality 2~3 of polyester polyol IV, 300~480mgKOH/g of hydroxyl value, viscosity (25 DEG C) 1500~
8000cp.Further preferably, the degree of functionality of polyether polyol I is 5；The degree of functionality of polyether polyol II is 5.2；Polyether polyol
III degree of functionality is 4；The degree of functionality of polyester polyol IV is 2.2.
Polyether polyol is formed by initiator and Polymerization of Propylene Oxide；In order to further increase gained hard polyurethane foams
The dimensional stability of plastics, and further decrease thermal coefficient, it is preferable that initiator used in polyether polyol I is sorbierite；Polyethers
Initiator used in polyalcohol II is sucrose or diethylene glycol (DEG), and is polymerize under conditions of adding palm oil；Used in polyether polyol III
Initiator is ethylenediamine；Initiator used in polyester polyol IV is p-phthalic acid, ethylene glycol or glycerol.
In order to further improve heat insulating ability, mechanical strength and the dimensional stability etc. of gained rigid polyurethane foam
Performance, further preferably, polyether polyol includes: I 20~35 parts of polyether polyol, and II 10~30 parts of polyether polyol, polyethers
III 5~15 parts and IV 30~50 parts of polyester polyol of polyalcohol, the number is mass fraction.
Existing common various catalyst can be used in the application, but in order to further ensure reaction efficiency, and promote each group
/ synergistic effect, it is preferable that above-mentioned catalyst includes: I 0.2~1 part of catalyst, II 2~6 parts of composite catalyst and catalysis
III 0~10 parts of agent, the number is mass fraction；Wherein, catalyst I is dibutyl tin dilaurate, and composite catalyst II is
Dimethyl cyclohexyl amine, pentamethyl-diethylenetriamine, triethylene diamine or 1, in 3,5- bis- (dimethylamino-propyl) Hexahydrotriazines
At least one, catalyst III are triethanolamine.Composite catalyst II be preferably dimethyl cyclohexyl amine, pentamethyl-diethylenetriamine and
Triethylene diamine mass ratio is 1:(1~2): the mixture of (2~3).
In order to further guarantee reaction efficiency, while perform to the synergistic effect between each component most preferably, it is further excellent
Choosing, catalyst includes: I 0.3~0.5 part of catalyst, and II 3~5.5 parts and III 1~8 parts of catalyst of composite catalyst, the number
For mass fraction.
In order to further promote the synergistic effect between each component, guarantee product quality, it is preferable that foam stabiliser is
AK8811；Further preferably, the mass fraction of foam stabiliser is 1.5~3.5 parts.
In order to further promote the synergistic effect between each component, the safety of products obtained therefrom is improved, it is preferable that additive flame
Combustion agent is tricresyl phosphate (2- chloropropyl) ester；Further preferably, the mass fraction of additive flame retardant is 25~33 parts.
The preparation method of the above-mentioned HFC-245eb type combined polyether for spraying polyurethane plastics, by polyether polyol, is urged
After agent, additive flame retardant, foam stabiliser and water mix, then foaming agent is added and is mixed to get.
Above-mentioned mass fraction is mass fraction under same benchmark.
HFC-245eb type combined polyether obtained by the application is reacted with isocyanates can be obtained hard polyurethane foam modeling
Material, concrete technology is referring to the prior art.
The unmentioned technology of the present invention is referring to the prior art.
The present invention is used for the HFC-245eb type combined polyether of spraying polyurethane plastics, is foaming by using HFC245eb
Spraying polyurethane rigid foam obtained by agent has good thermal insulation property, mechanical strength and dimensional stability, and
With self-extinguishing function, construction is flexible and convenient seamless；The molding of obtained spraying polyurethane rigid foam is close
Degree is in 30~60kg/m3In range, compressive strength is greater than 140kPa, and thermal coefficient is less than 0.021w/ (m.k), and Low-Temperature Size is steady
Qualitative (- 30 DEG C, for 24 hours) are less than or equal to 0.1%, and (70 DEG C, for 24 hours) of high temperature dimensional stability are less than or equal to 0.7%, hard polyaminoester
Foam is safe and environment-friendly, energy saving, reliable from fire 0~3S self-extinguishment, meets the requirement of national energy conservation and emission reduction safety and environmental protection；The application system
Preparation Method is simple, has no special requirements to technical process.
Specific embodiment
For a better understanding of the present invention, below with reference to the embodiment content that the present invention is furture elucidated, but it is of the invention
Content is not limited solely to the following examples.
It is raw materials used as follows in each embodiment:
Polyether polyol I (entitled 600A, hydroxyl value 421mgKOH/g, degree of functionality 5, viscosity (25 DEG C) 11500cp), polyethers
Polyalcohol II (entitled 8238, hydroxyl value 395mgKOH/g, degree of functionality 5.2, viscosity (25 DEG C) 7350cp), polyether polyol III
(entitled 403, hydroxyl value 770mgKOH/g, degree of functionality 4, viscosity (50 DEG C) 2100cp) all has for the polyurethane industry of Shaoxin City's Hengfeng
The production of limit company；Polyester polyol IV (entitled 400A, hydroxyl value 425mgKOH/g, degree of functionality 2.2, viscosity (25 DEG C) 2950cp)
For the production of Zhangjiagang south photoinitiator chemical Co., Ltd；
Catalyst I is dibutyl tin dilaurate；Manufacturer is the triumphant auspicious chemical Science and Technology Ltd. in Changzhou；Composite catalyzing
Agent II is the mixture that dimethyl cyclohexyl amine, pentamethyl-diethylenetriamine and triethylene diamine mass ratio are 1:1.5:2.5, production
Producer is Jiangdu great river chemical plant；Catalyst III is triethanolamine, and manufacturer is Fushun Jiahua Chemicals Co., Ltd；
Foam stabiliser I is AK8811, and manufacturer is Nanjing Dymatic Shichuang Chemical Co., Ltd.；
Additive flame retardant is TCPP, entitled tricresyl phosphate (2- chloropropyl) ester of chemistry, and manufacturer is Yangzhou morningization science and technology
Group；
Foaming agent is HFC-245eb, 1,1,2,3,3- pentafluoropropane of chemical name, manufacturer's Jiangsu blue planet ring
Protect Science and Technology Ltd..
Each embodiment is prepared as follows: each raw material is uniform by the investment container for stirring of share given in table 1
(be added and mix after the mixing of polyether polyol, catalyst, additive flame retardant, foam stabiliser and water, then by foaming agent),
The combined polyether using HFC245eb for foaming agent is obtained, gained combined polyether is pressed with polyphenyl polymethylene polyisocyanates
Combined polyether: isocyanates=1:1 weight ratio carries out mixed at high speed reaction, wherein reaction temperature is 20-25 DEG C, stirring speed
Degree is 3000r/min (stirring in initial time), and initial time is 4 ± 2s, and the not viscous time is 15 ± 8s, and polyurethane is made
Rigid foam.
The raw material proportioning of each embodiment of table 1 and the performance table of products obtained therefrom
Note: raw material presses the calculating of quality share in table on 1.；2. froth appearance core density presses standard GB/T/T 6343-
2009 are tested；Thermal coefficient is tested by standard GB/T/T 10294-2008；Compressive strength presses standard GB/T/T
8813-2008 is tested；Dimensional stability is tested by standard GB/T/T 8811-2008.
Claims (7)
1. a kind of HFC-245eb type combined polyether for spraying polyurethane plastics, it is characterised in that: its raw material includes such as the following group
Point: 25~170 parts of polyalcohol, 2.2~17 parts of catalyst, 0~5 part of foam stabiliser, 10~35 parts of additive flame retardant, water 0
~2 parts and 10~80 parts of blowing agent H FC-245eb, the number is mass fraction；
Polyalcohol includes: I 20~35 parts of polyether polyol, II 10~30 parts of polyether polyol, III 5~15 parts of polyether polyol and
IV 30~50 parts of polyester polyol, the number is mass fraction；Wherein, the degree of functionality of polyether polyol I is 4~6, and hydroxyl value is
390~550mgKOH/g, viscosity 25 DEG C: 4000~20000cp；The degree of functionality of polyether polyol II be 4~6, hydroxyl value be 350~
480mgKOH/g, viscosity 25 DEG C: 2000~16000cp；The degree of functionality of polyether polyol III be 3~5, hydroxyl value be 700~
900mgKOH/g, viscosity 50 DEG C: 1000~4000cp；The degree of functionality 2~3 of polyester polyol IV, 300~480mgKOH/ of hydroxyl value
G, viscosity 25 DEG C: 1500~8000cp；
Polyether polyol is formed by initiator and Polymerization of Propylene Oxide；Wherein, initiator used in polyether polyol I is sorbierite；
Initiator used in polyether polyol II is sucrose or diethylene glycol (DEG), and is polymerize under conditions of adding palm oil；Polyether polyol III
Initiator used is ethylenediamine；Initiator used in polyester polyol IV is p-phthalic acid, ethylene glycol or glycerol.
2. being used for the HFC-245eb type combined polyether of spraying polyurethane plastics as described in claim 1, it is characterised in that: urge
Agent includes: I 0.2~1 part of catalyst, and II 2~6 parts and III 0~10 parts of catalyst of composite catalyst, the number is mass parts
Number；Wherein, catalyst I is dibutyl tin dilaurate, and composite catalyst II is dimethyl cyclohexyl amine, pentamethyl divinyl three
Amine, triethylene diamine or 1, at least one of 3,5- bis- (dimethylamino-propyl) Hexahydrotriazines, catalyst III are triethanolamine.
3. being used for the HFC-245eb type combined polyether of spraying polyurethane plastics as claimed in claim 2, it is characterised in that: urge
Agent includes: I 0.3~0.5 part of catalyst, and II 3~5.5 parts and III 1~8 parts of catalyst of composite catalyst, the number is matter
Measure number.
4. being used for the HFC-245eb type combined polyether of spraying polyurethane plastics as described in claim 1, it is characterised in that: bubble
Foam stabilizers are AK8811.
5. being used for the HFC-245eb type combined polyether of spraying polyurethane plastics as claimed in claim 4, it is characterised in that: former
The mass fraction for expecting foam stabiliser in component is 1.5~3.5 parts.
6. being used for the HFC-245eb type combined polyether of spraying polyurethane plastics as described in claim 1, it is characterised in that: add
Adding type fire retardant is tricresyl phosphate (2- chloropropyl) ester；In raw material components: the mass fraction of additive flame retardant is 25~33 parts, water
Mass fraction be 1~1.5 part, the mass fraction of blowing agent H FC-245eb is 25~40 parts.
7. the preparation of the HFC-245eb type combined polyether as claimed in any one of claims 1 to 6 for spraying polyurethane plastics
Method, it is characterised in that: after mixing polyalcohol, catalyst, additive flame retardant, foam stabiliser and water, then by foaming agent
Be added and mix to get.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510490421.1A CN105085971B (en) | 2015-08-11 | 2015-08-11 | HFC-245eb type combined polyether for spraying polyurethane plastic and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510490421.1A CN105085971B (en) | 2015-08-11 | 2015-08-11 | HFC-245eb type combined polyether for spraying polyurethane plastic and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105085971A CN105085971A (en) | 2015-11-25 |
| CN105085971B true CN105085971B (en) | 2019-01-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201510490421.1A Active CN105085971B (en) | 2015-08-11 | 2015-08-11 | HFC-245eb type combined polyether for spraying polyurethane plastic and preparation method thereof |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1742033A (en) * | 2003-01-22 | 2006-03-01 | 拜尔材料科学有限责任公司 | Rigid polyurethane foams with improved properties |
| CN102585138A (en) * | 2012-01-10 | 2012-07-18 | 绍兴市恒丰聚氨酯实业有限公司 | Raw material formula and preparation method of low-density conjugate polyether for external wall spraying |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1742033A (en) * | 2003-01-22 | 2006-03-01 | 拜尔材料科学有限责任公司 | Rigid polyurethane foams with improved properties |
| CN102585138A (en) * | 2012-01-10 | 2012-07-18 | 绍兴市恒丰聚氨酯实业有限公司 | Raw material formula and preparation method of low-density conjugate polyether for external wall spraying |
Non-Patent Citations (2)
| Title |
|---|
| "HFC-245fa型喷涂聚氨酯硬泡的研制";孔新平等;《聚氨酯工业》;20061231;第21卷(第5期);第29-31页 * |
| "HFC-245fa型聚氨酯硬泡用聚醚多元醇的研究";李德徽等;《聚氨酯工业》;20071231;第22卷(第4期);第30-33页 * |
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Denomination of invention: HFC-245eb type composite polyether for spraying polyurethane plastics and its preparation method Effective date of registration: 20230928 Granted publication date: 20190115 Pledgee: Huai'an Guosheng Financing Guarantee Co.,Ltd. Pledgor: JIANGSU LIHONG TECHNOLOGY DEVELOPMENT Co.,Ltd. Registration number: Y2023980059693 |
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