CN105199310B - A kind of phenolic foam warming plate with core shell structure and preparation method thereof - Google Patents
A kind of phenolic foam warming plate with core shell structure and preparation method thereof Download PDFInfo
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- CN105199310B CN105199310B CN201510545264.XA CN201510545264A CN105199310B CN 105199310 B CN105199310 B CN 105199310B CN 201510545264 A CN201510545264 A CN 201510545264A CN 105199310 B CN105199310 B CN 105199310B
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- 239000006260 foam Substances 0.000 title claims abstract description 48
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 title claims abstract description 34
- 239000011258 core-shell material Substances 0.000 title claims abstract description 24
- 238000010792 warming Methods 0.000 title claims abstract description 23
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims abstract description 69
- 229920001568 phenolic resin Polymers 0.000 claims abstract description 49
- 239000005011 phenolic resin Substances 0.000 claims abstract description 49
- 229920001730 Moisture cure polyurethane Polymers 0.000 claims abstract description 24
- 239000000203 mixture Substances 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 10
- 238000009413 insulation Methods 0.000 claims abstract description 5
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 30
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 24
- 239000004088 foaming agent Substances 0.000 claims description 24
- 238000003756 stirring Methods 0.000 claims description 18
- OFBQJSOFQDEBGM-UHFFFAOYSA-N Pentane Chemical compound CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 claims description 14
- 238000006243 chemical reaction Methods 0.000 claims description 14
- -1 1 part of nucleator Substances 0.000 claims description 13
- 239000003795 chemical substances by application Substances 0.000 claims description 13
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 12
- 239000004094 surface-active agent Substances 0.000 claims description 11
- 229930040373 Paraformaldehyde Natural products 0.000 claims description 10
- 229920002866 paraformaldehyde Polymers 0.000 claims description 10
- 239000003381 stabilizer Substances 0.000 claims description 10
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 9
- 230000002045 lasting effect Effects 0.000 claims description 9
- 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 8
- 239000004814 polyurethane Substances 0.000 claims description 8
- 229920005989 resin Polymers 0.000 claims description 8
- 239000011347 resin Substances 0.000 claims description 8
- 238000005187 foaming Methods 0.000 claims description 7
- 229920006324 polyoxymethylene Polymers 0.000 claims description 7
- 229920002635 polyurethane Polymers 0.000 claims description 7
- 239000007787 solid Substances 0.000 claims description 7
- 229920000642 polymer Polymers 0.000 claims description 6
- 239000012948 isocyanate Substances 0.000 claims description 3
- BRWZYZWZBMGMMG-UHFFFAOYSA-J dodecanoate tin(4+) Chemical compound [Sn+4].CCCCCCCCCCCC([O-])=O.CCCCCCCCCCCC([O-])=O.CCCCCCCCCCCC([O-])=O.CCCCCCCCCCCC([O-])=O BRWZYZWZBMGMMG-UHFFFAOYSA-J 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 239000007921 spray Substances 0.000 claims description 2
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 claims description 2
- 239000002202 Polyethylene glycol Substances 0.000 claims 1
- WNLRTRBMVRJNCN-UHFFFAOYSA-L adipate(2-) Chemical compound [O-]C(=O)CCCCC([O-])=O WNLRTRBMVRJNCN-UHFFFAOYSA-L 0.000 claims 1
- 229920001223 polyethylene glycol Polymers 0.000 claims 1
- 230000002459 sustained effect Effects 0.000 claims 1
- 229920005830 Polyurethane Foam Polymers 0.000 abstract description 10
- 239000011496 polyurethane foam Substances 0.000 abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 8
- 239000000463 material Substances 0.000 abstract description 5
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 238000007711 solidification Methods 0.000 abstract description 2
- 230000008023 solidification Effects 0.000 abstract description 2
- 238000003786 synthesis reaction Methods 0.000 abstract description 2
- 239000012814 acoustic material Substances 0.000 abstract 1
- 238000004321 preservation Methods 0.000 abstract 1
- 230000003014 reinforcing effect Effects 0.000 abstract 1
- 239000002585 base Substances 0.000 description 21
- 238000001723 curing Methods 0.000 description 12
- WNLRTRBMVRJNCN-UHFFFAOYSA-N hexanedioic acid Natural products OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 8
- 235000011037 adipic acid Nutrition 0.000 description 7
- 229960000250 adipic acid Drugs 0.000 description 7
- CWZPGMMKDANPKU-UHFFFAOYSA-L butyl-di(dodecanoyloxy)tin Chemical compound CCCC[Sn+2].CCCCCCCCCCCC([O-])=O.CCCCCCCCCCCC([O-])=O CWZPGMMKDANPKU-UHFFFAOYSA-L 0.000 description 6
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 235000019441 ethanol Nutrition 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 3
- 150000002148 esters Chemical class 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 206010000269 abscess Diseases 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 239000006261 foam material Substances 0.000 description 2
- QWTDNUCVQCZILF-UHFFFAOYSA-N isopentane Chemical compound CCC(C)C QWTDNUCVQCZILF-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000010451 perlite Substances 0.000 description 2
- 235000019362 perlite Nutrition 0.000 description 2
- GHMLBKRAJCXXBS-UHFFFAOYSA-N resorcinol Chemical compound OC1=CC=CC(O)=C1 GHMLBKRAJCXXBS-UHFFFAOYSA-N 0.000 description 2
- 239000012745 toughening agent Substances 0.000 description 2
- IMNIMPAHZVJRPE-UHFFFAOYSA-N triethylenediamine Chemical compound C1CN2CCN1CC2 IMNIMPAHZVJRPE-UHFFFAOYSA-N 0.000 description 2
- BJZYYSAMLOBSDY-QMMMGPOBSA-N (2s)-2-butoxybutan-1-ol Chemical compound CCCCO[C@@H](CC)CO BJZYYSAMLOBSDY-QMMMGPOBSA-N 0.000 description 1
- 150000005207 1,3-dihydroxybenzenes Chemical class 0.000 description 1
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 1
- 229920001807 Urea-formaldehyde Polymers 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- SRSXLGNVWSONIS-UHFFFAOYSA-N benzenesulfonic acid Chemical compound OS(=O)(=O)C1=CC=CC=C1 SRSXLGNVWSONIS-UHFFFAOYSA-N 0.000 description 1
- 229940092714 benzenesulfonic acid Drugs 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- XLJMAIOERFSOGZ-UHFFFAOYSA-M cyanate Chemical compound [O-]C#N XLJMAIOERFSOGZ-UHFFFAOYSA-M 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 239000012975 dibutyltin dilaurate Substances 0.000 description 1
- 125000005442 diisocyanate group Chemical group 0.000 description 1
- AFABGHUZZDYHJO-UHFFFAOYSA-N dimethyl butane Natural products CCCC(C)C AFABGHUZZDYHJO-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 125000005909 ethyl alcohol group Chemical group 0.000 description 1
- 239000008098 formaldehyde solution Substances 0.000 description 1
- 125000002485 formyl group Chemical class [H]C(*)=O 0.000 description 1
- 238000004108 freeze drying Methods 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 150000002513 isocyanates Chemical class 0.000 description 1
- 239000002667 nucleating agent Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- ODGAOXROABLFNM-UHFFFAOYSA-N polynoxylin Chemical compound O=C.NC(N)=O ODGAOXROABLFNM-UHFFFAOYSA-N 0.000 description 1
- 235000010482 polyoxyethylene sorbitan monooleate Nutrition 0.000 description 1
- 229920000053 polysorbate 80 Polymers 0.000 description 1
- 229920003987 resole Polymers 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
Landscapes
- Polyurethanes Or Polyureas (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
A kind of phenolic foam warming plate with core shell structure and preparation method thereof, is related to a kind of warming plate and preparation method thereof, and material surface composition of the present invention is phenol formaldehyde foam, and sandwich layer is polyurethane foam.Mass ratio is 100 parts of phenolic resin system;20 parts of base polyurethane prepolymer for use as system;Foamed under predetermined synthesis technique via in mould, be molded by solidification, curing, can obtain the phenolic foam warming plate of good-toughness, overcome traditional toughness reinforcing method to sacrifice the phenolic foam sheet with certain toughness that anti-flammability is obtained as cost.And its flexibility is imparted phenolic resin by sandwich layer polyurethane foam so that its thermal conductivity factor is further reduced, while also add the water resistance of phenolic foam board.It can be used as heat-insulation and heat-preservation, acoustic material.
Description
Technical field
The present invention relates to a kind of warming plate and preparation method thereof, more particularly to a kind of phenolic foam with core shell structure
Warming plate and preparation method thereof.
Background technology
Phenolic resin is from starting to mass produce into product, always with heat-resist, high mechanical strength, electrical insulating property and resistance to
The advantages of high temperature wriggling is excellent, is widely used in fields such as electrician, aviation, building and space flight.
Phenol formaldehyde foam generally by resol, surfactant, foaming agent, it is well mixed after add curing agent,
Generally there is density height in foamable after stirring, the phenol formaldehyde foam formed, fragility is big, and water absorption rate height etc. lacks
Fall into, so the phenolic resin that phenolic foam foaming is used needs to use flexible material to be modified, to solve the portion of phenol formaldehyde foam
Divide defect.The phenol formaldehyde foam of foaming preparation is carried out by modified phenolic resin, its fragility can have some improvement.
Publication No. CN201510039644 application for a patent for invention, under agitation, 0.2g resorcinols are dissolved
In deionized water, the resorcinol aqueous solution that concentration is 0.06 ~ 0.12mol/L, i.e. reaction solution is made, the reaction solution is put
In -5 DEG C ~ 5 DEG C cryostats;B, to(a)Middle addition 4 ~ 15mL absolute ethyl alcohols;C, stirring 2min are backward(b)Middle addition formaldehyde
Solution;D, stirring 2min are backward(c)Middle addition ammoniacal liquor;E, 24 ~ 48h of stirring, obtain milky white solution, centrifuge, freeze-drying
The phenolic resin of microcosmic core shell structure is produced afterwards, and the phenolic resin toughness has a small amount of raising, but fire resistance and thermal insulation are corresponding
Reduction.
Publication No. CN201510164958 application for a patent for invention, describes a kind of phenolic resin and base polyurethane prepolymer for use as
Composite foam material and preparation method.The material composition and quality proportioning are phenolic resin:Base polyurethane prepolymer for use as:Closed perlite:Table
Face activating agent:Foaming agent:Curing agent=1:0.05-0.25:0.10-0.30:0.02-0.06:0.05-0.15:0.80-0.15 ;
Phenolic resin is mixed with base polyurethane prepolymer for use as and various auxiliary agents, then after being mixed with closed perlite, inputs mould
It is interior, it is molded by foaming, solidification, curing.The anti-flammability of the light weight of the material, good toughness, but phenolic resin has certain reduction.
Therefore, needing a kind of modified pnenolic aldehyde foam material of excellent performance in a hurry, make while its fire resistance is ensured
It possesses good mechanical property, relatively low manufacturing cost and simple technological process, is conveniently used for fireproof heat insulating field.
The content of the invention
It is an object of the invention to provide a kind of phenolic foam warming plate with core shell structure and preparation method thereof, the party
Method solves the shortcoming of traditional low frangibility of phenol formaldehyde foam toughness in technique.This core shell structure structure phenolic aldehyde cystosepiment is by poly- ammonia
The sets of advantages of ester foam and phenol formaldehyde foam is together with, and the presence of the phenol formaldehyde foam of extexine overcomes conventional polyurethane foams plate
The shortcoming of poor fire, and due to the presence of sandwich layer polyurethane foam, the cost of phenol formaldehyde foam is not only reduced, improve heat conduction
Coefficient, further improves the toughness of traditional phenol formaldehyde foam.This synthesis technique is reasonable, it is easy to industrialized production.
The purpose of the present invention is achieved through the following technical solutions:
A kind of phenolic foam warming plate with core shell structure, the warming plate outer layer is phenolic resin foam and sandwich layer is
The core shell structure phenolic aldehyde composition of polyurethane foam:
Wherein:100 parts of phenolic resin foam;10-30 parts of base polyurethane prepolymer for use as foam;
Phenolic resin foam is by phenol, paraformaldehyde, sodium hydroxide, surfactant, foaming agent, curing agent and nucleator
It is made:
100 parts of phenol;50-70 parts of paraformaldehyde;2-5 parts of sodium hydroxide;10-15 parts of surfactant;Foaming agent 8-20
Part;12-20 parts of curing agent;1-5 part of nucleator;
The pre- foam of polyurethane is made by polymer polyatomic alcohol, isocyanates, nucleator, foam stabilizer, foaming agent and catalyst:
100 parts of polymer polyatomic alcohol;10-20 parts of diisocyanate;0.1-0.3 parts of catalyst;2 parts of foam stabilizer;Foaming agent
12-14 parts.
A kind of described phenolic foam warming plate with core shell structure, the phenolic resin foam surfactant is to tell
One or more in temperature -80, silicone oil.
A kind of described phenolic foam warming plate with core shell structure, the phenolic resin foam foaming agent is positive penta
One or more in alkane, isopentane, petroleum ether and dichloromethane.
A kind of described phenolic foam warming plate with core shell structure, the phenolic resin foam curing agent is to hydroxyl
One or more in benzene sulfonic acid, phosphoric acid, hydrochloric acid.
A kind of described phenolic foam warming plate with core shell structure, the phenolic resin foam nucleator is micron order
Spherical Al2O3 particles, 10 ~ 200 μm of particle diameter, and nano level spherical silica particles, the nm of particle diameter < 100, in one kind or
It is a variety of.
A kind of described phenolic foam warming plate with core shell structure, the polyurethane foam degree of functionality is that 2, number is divided equally
The polymer polyatomic alcohol that son amount is 2000 is the one or more in PEA2000, PCL2000, PPG2000, PTMG2000.
A kind of described phenolic foam warming plate with core shell structure, the polyurethane foam degree of functionality for 2 it is two different
Cyanate is the one or more in TDI-80, TDI-100, MDI-100, MDI-50, liquefied mdi.
A kind of described phenolic foam warming plate with core shell structure, the polyurethane foam catalyst is dibutyl two
One or more in tin laurate, triethylenediamine, triethanolamine.
A kind of described phenolic foam warming plate with core shell structure, the polyurethane foam foam stabilizer is Tween-80.
A kind of phenolic foam warming plate with core shell structure and preparation method thereof, the described method comprises the following steps:
(1)Reactor A and C are equipped with phenolic resin component in mass ratio, and reactor B is equipped with base polyurethane prepolymer for use as in mass ratio
Component, the shower nozzle of 3 reactors is arranged in order above conveyer belt by same intervals;
(2)After conveyer belt is started, reactor A is first begin to the phenolic resin of lasting ejection Rack and specific thickness
In on conveyer belt, when resin is transported to conveyer belt below reactor B after the several seconds, the time depending on the specific speed of conveyer belt, instead
Kettle B is answered to start the base polyurethane prepolymer for use as of lasting ejection Rack and specific thickness, when resin with conveyer belt is transported to reactor C
During lower section, reactor C starts the phenolic resin of lasting ejection Rack and specific thickness on conveyer belt, now on conveyer belt
Transport has outer layer to be the prefoam system that phenolic aldehyde internal layer is polyurethane, is foamed into insulating box.
Advantages of the present invention is with effect:
The present invention with the addition of nucleator in phenolic resin, improve the expansion ratio of phenolic resin, to prevent sandwich layer from gathering
Urethane makes phenol formaldehyde foam split because expansion ratio is too high.After addition nucleator substantial amounts of bubble can be formed in phenolic resin
A large amount of fine and closely woven uniform minute bubbles can be formed in core, melt, abscess densification, the small phenol formaldehyde foam of apparent density is ultimately formed.Add
The Added Nucleating Agents effect that also restricted foaming agent volatilizees, foaming agent is not volatile, so as to improve the utilization rate of foaming agent, therefore
The foam of high foamability can be obtained.And be that abscess is big, quantity is few, foaming without what is obtained in the phenolic resin of nucleator
The low foam of multiplying power.
The present invention improves its toughness by synthesizing the phenolic foam board with core shell structure, obtains the toughness for being modified foam
To greatly improving, while thermal conductivity factor, water absorption rate and combination property are obtained for improvement.The raising of toughness is due to poly- ammonia
Its flexibility is imparted phenolic resin by ester foam, and thermal conductivity factor is further reduced, while also add phenol formaldehyde foam
The water resistance of plate.Flexible base polyurethane prepolymer for use as and phenolic resin are foamed simultaneously, mutual shape in the foam of both joints
Into the structure of interpenetrating networks, the degree of engagement of polyurethane and phenol formaldehyde foam is improved, while so that rigid phenol formaldehyde foam has
Flexibility, cost reduction by 20% ~ 30%.And the toughness of whole cystosepiment is also improved, reduction volume phenol formaldehyde foam is in use
The possibility of fracture.Phenolic foam heat insulation plate with core shell structure is better than traditional toughener method part and is, the polyurethane of sandwich layer
The oxygen index (OI) of top layer phenolic resin is not reduced, and traditional toughener method is to sacrifice anti-flammability as cost.
Brief description of the drawings
Fig. 1 is three reactors square location drawing on a moving belt;
In figure:Reactor A, B, C are followed successively by from left to right;
Fig. 2 is conveyer belt stereogram;
Fig. 3 is the ideally cross section accompanying drawing of resin on a moving belt;
In figure:Internal layer is base polyurethane prepolymer for use as, and outer layer is phenolic resin.
Embodiment
With reference to embodiment, the present invention is described in detail.
Embodiment 1
(1)By phenol, paraformaldehyde, sodium hydroxide, in mass ratio 65:30:1 adds in reactor, 60 DEG C of bath temperature
Solid polyformaldehyde is added in batches, control half an hour adds, continue to react half an hour, increase the temperature to 90 DEG C, continue
Reaction 1.5 hours, that is, obtain phenolic resin.Take 100.0 parts of phenolic resin, 6.0 parts of surfactant, foaming agent pentane 15
Part, 15 parts of curing agent, 1 part of nucleator, mix, stir it is stand-by.
(2)Take poly- hexanedioic acid glycol ester glycol(PEA2000)100 parts, toluene di-isocyanate(TDI)(TDI-80)10 parts, two
Butyl tin dilaurate tin(DBTDL)In 0.1 part of addition reactor, base polyurethane prepolymer for use as is made in vacuum reaction 1h at 80 DEG C.Take
100 parts of base polyurethane prepolymer for use as, 2 parts of foam stabilizer, 12 parts of foaming agent, mix, stir it is stand-by.
(3)Fill to fill in the phenolic resin as made from step 1, reactor B in reactor A and C and gather as made from step 2
Urethane performed polymer, 3 reactors are arranged in conveyer belt by interval 0.5m(Width is 1m, and groove depth is more than 0.1m, and speed is 1m/
min)Top.After conveyer belt is started, it is the phenolic resin that 1m thickness is 0.03m that reactor A, which is first begin to lasting ejection width,
In on conveyer belt, after 30 seconds when resin is transported to conveyer belt below reactor B, reactor B starts lasting ejection width and is
0.5m thickness is 0.04m base polyurethane prepolymer for use as, after after 30 seconds when resin is transported to below reactor C with conveyer belt, instead
Answer kettle C start lasting ejection width be 1m thickness be 0.03m phenolic resin on conveyer belt, now being transported on conveyer belt has outer
Layer is the prefoam system that phenolic aldehyde internal layer is polyurethane, is foamed into insulating box.Reactor A, B, C spray the quality of liquid
Than for 2:1:2.The thermal insulation foaming 10min at a temperature of 50 DEG C, is warming up to 80 DEG C, solidifies 10min, obtains the phenol of core shell structure
Urea formaldehyde expanded material.
Embodiment 2
(1)By phenol, paraformaldehyde, sodium hydroxide, in mass ratio 65:35:1 adds in reactor, 60 DEG C of bath temperature
Solid polyformaldehyde is added in batches, control half an hour adds, continue to react half an hour, increase the temperature to 90 DEG C, continue
Instead
Answer 1.5 hours, that is, obtain phenolic resin.Take 100.0 parts of phenolic resin, 6.0 parts of surfactant, foaming agent just
15 parts of pentane, 15 parts of curing agent, 1 part of nucleator, mix, stir it is stand-by.
(2)Take poly- hexanedioic acid glycol ester glycol(PEA2000)100 parts, toluene di-isocyanate(TDI)(TDI-80)10 parts, two
Butyl tin dilaurate tin(DBTDL)In 0.1 part of addition reactor, base polyurethane prepolymer for use as is made in vacuum reaction 1h at 80 DEG C.Take
100 parts of base polyurethane prepolymer for use as, 2 parts of foam stabilizer, 12 parts of foaming agent, mix, stir it is stand-by.
(3)The step of be the same as Example 1 the 3rd.
Embodiment 3
(1)By phenol, paraformaldehyde, sodium hydroxide, in mass ratio 65:40:1 adds in reactor, 60 DEG C of bath temperature
Solid polyformaldehyde is added in batches, control half an hour adds, continue to react half an hour, increase the temperature to 90 DEG C, continue
Reaction 1.5 hours, that is, obtain phenolic resin.Take 100.0 parts of phenolic resin, 6.0 parts of surfactant, foaming agent pentane 15
Part, 15 parts of curing agent, 1 part of nucleator, mix, stir it is stand-by.
(2)Take poly- hexanedioic acid glycol ester glycol(PEA2000)100 parts, toluene di-isocyanate(TDI)(TDI-80)10 parts, two
Butyl tin dilaurate tin(DBTDL)In 0.1 part of addition reactor, base polyurethane prepolymer for use as is made in vacuum reaction 1h at 80 DEG C.Take
100 parts of base polyurethane prepolymer for use as, 2 parts of foam stabilizer, 12 parts of foaming agent, mix, stir it is stand-by.
(3)The step of be the same as Example 1 the 3rd.
Embodiment 4
(1)By phenol, paraformaldehyde, sodium hydroxide, in mass ratio 65:35:1 adds in reactor, 60 DEG C of bath temperature
Solid polyformaldehyde is added in batches, control half an hour adds, continue to react half an hour, increase the temperature to 90 DEG C, continue
Reaction 1.5 hours, that is, obtain phenolic resin.Take 100.0 parts of phenolic resin, 6.0 parts of surfactant, foaming agent pentane 15
Part, 15 parts of curing agent, 1 part of nucleator, mix, stir it is stand-by.
(2)Take poly- hexanedioic acid glycol ester glycol(PEA2000)100 parts, toluene di-isocyanate(TDI)(TDI-80)10 parts, two
Butyl tin dilaurate tin(DBTDL)In 0.1 part of addition reactor, base polyurethane prepolymer for use as is made in vacuum reaction 1h at 80 DEG C.Take
100 parts of base polyurethane prepolymer for use as, 2 parts of foam stabilizer, 12 parts of foaming agent, mix, stir it is stand-by.
(3)The step of be the same as Example 1 the 3rd.
Embodiment 5
(1)By phenol, paraformaldehyde, sodium hydroxide, in mass ratio 65:35:1 adds in reactor, 60 DEG C of bath temperature
Solid polyformaldehyde is added in batches, control half an hour adds, continue to react half an hour, increase the temperature to 90 DEG C, continue
Reaction 1.5 hours, that is, obtain phenolic resin.Take 100.0 parts of phenolic resin, 6.0 parts of surfactant, foaming agent pentane 15
Part, 15 parts of curing agent, 1 part of nucleator, mix, stir it is stand-by.
(2)Take poly- hexanedioic acid glycol ester glycol(PEA2000)100 parts, toluene di-isocyanate(TDI)(TDI-80)15 parts, two
Butyl tin dilaurate tin(DBTDL)In 0.1 part of addition reactor, base polyurethane prepolymer for use as is made in vacuum reaction 1h at 80 DEG C.Take
100 parts of base polyurethane prepolymer for use as, 2 parts of foam stabilizer, 12 parts of foaming agent, mix, stir it is stand-by.
(3)The step of be the same as Example 1 the 3rd.
Embodiment 6
(1)By phenol, paraformaldehyde, sodium hydroxide, in mass ratio 65:35:1 adds in reactor, 60 DEG C of bath temperature
Solid polyformaldehyde is added in batches, control half an hour adds, continue to react half an hour, increase the temperature to 90 DEG C, continue
Reaction 1.5 hours, that is, obtain phenolic resin.Take 100.0 parts of phenolic resin, 6.0 parts of surfactant, foaming agent pentane 15
Part, 15 parts of curing agent, 1 part of nucleator, mix, stir it is stand-by.
(2)Take poly- hexanedioic acid glycol ester glycol(PEA2000)100 parts, toluene di-isocyanate(TDI)(TDI-80)20 parts, two
Butyl tin dilaurate tin(DBTDL)In 0.1 part of addition reactor, base polyurethane prepolymer for use as is made in vacuum reaction 1h at 80 DEG C.Take
100 parts of base polyurethane prepolymer for use as, 2 parts of foam stabilizer, 12 parts of foaming agent, mix, stir it is stand-by.
(3)The step of be the same as Example 1 the 3rd.
Comparative example
The performance comparison of phenol formaldehyde foam and common anacardol phenol formaldehyde foam prepared by the embodiment of the present invention 1 to 6 is as follows
Table:
Table
Bending Deformation mm | Compressive strength MPa | Volume water absorption rate % | |
Embodiment 1 | 12.19 | 1.010 | 4.3 |
Embodiment 2 | 16.35 | 1.026 | 5.3 |
Embodiment 3 | 14.84 | 1.008 | 4.8 |
Embodiment 4 | 13.71 | 1.013 | 4.9 |
Embodiment 5 | 14.16 | 1.014 | 5.1 |
Embodiment 6 | 12.41 | 1.016 | 5.0 |
Basis contrast | 5.19 | 0.089 | 9.2 |
As seen from the above table, the toughness of core shell structure phenol formaldehyde foam of the invention is greatly improved, and density rises, water absorption rate
Reduction, the combination property of product is improved.This is due to that its flexibility is imparted phenolic resin by polyurethane foam, and causes heat conduction
Coefficient is further reduced, while the water resistance of phenolic foam board is also add, cost reduction by 20% ~ 30%.
What is changed in embodiment 1,2,3 is the mass ratio of phenol, paraformaldehyde and sodium hydroxide, from result, quality
Than 65:35:Effect is best when 1.What is changed in embodiment 4,5,6 is poly- hexanedioic acid glycol ester glycol, toluene di-isocyanate(TDI)
With the mass ratio of dibutyl tin dilaurate, from result, mass ratio is 100:15:Effect is best when 0.1.
Claims (1)
1. a kind of preparation method of the phenolic foam warming plate with core shell structure, it is characterised in that methods described includes following
Step:
(1)By phenol, paraformaldehyde, sodium hydroxide, in mass ratio 65:35:1 adds in reactor, and 60 DEG C of bath temperature is in batches
Amount adds solid polyformaldehyde, and control half an hour adds, and continues to react half an hour, increases the temperature to 90 DEG C, sustained response
1.5 hours, that is, obtain phenolic resin;Take 100.0 parts of phenolic resin, 6.0 parts of surfactant, 15 parts of foaming agent pentane,
15 parts of curing agent, 1 part of nucleator, mix, stir it is stand-by;
(2)Take 100 parts of polyethylene glycol adipate glycol PEA2000,15 parts of toluene di-isocyanate(TDI) TDI-80, dibutyl two
In 0.1 part of addition reactor of tin laurate DBTDL, base polyurethane prepolymer for use as is made in vacuum reaction 1h at 80 DEG C;Take polyurethane
100 parts of performed polymer, 2 parts of foam stabilizer, 12 parts of foaming agent, mix, stir it is stand-by;
(3)Filled in reactor A and C by step(1)Filled in obtained phenolic resin, reactor B by step(2)It is obtained poly-
Urethane performed polymer, 3 reactors are arranged in above conveyer belt by interval 0.5m, and the width of conveyer belt is 1m, and groove depth is more than 0.1m,
Speed is 1m/min;After conveyer belt is started, it is the phenolic aldehyde that 1m thickness is 0.03m that reactor A, which is first begin to lasting ejection width,
Resin is on conveyer belt, and after 30 seconds when resin is transported to conveyer belt below reactor B, it is wide that reactor B starts lasting ejection
Degree is the base polyurethane prepolymer for use as that 0.5m thickness is 0.04m, after after 30 seconds when resin is transported to below reactor C with conveyer belt
When, reactor C start lasting ejection width be 1m thickness be 0.03m phenolic resin on conveyer belt, now transported on conveyer belt
It is the prefoam system that phenolic aldehyde internal layer is polyurethane to send outer layer, is foamed into insulating box;
The mass ratio that reactor A, B, C spray liquid is 2:1:2;Thermal insulation foaming 10min, is warming up to 80 at a temperature of 50 DEG C
DEG C, solidify 10min, obtain the Foaming of phenolic resin warming plate of core shell structure.
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CN112063157A (en) * | 2020-09-20 | 2020-12-11 | 深圳市知猪互联科技有限公司 | Preparation process of high-flame-retardant polyurethane foam heat-insulation material |
CN113462119A (en) * | 2021-08-12 | 2021-10-01 | 北海市传创环保科技有限公司 | Heat-insulation and heat-preservation plastic and preparation method thereof |
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DE2130279A1 (en) * | 1971-06-18 | 1972-12-21 | Lentia Gmbh | Laminated short ski - with polyurethane foam core and plastic covering layers bonded to fibreglass laminates |
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CN101735553A (en) * | 2010-01-07 | 2010-06-16 | 上海雅达特种涂料有限公司 | Material for manufacturing modified phenolic fireproof insulating plate |
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