CN107286568A - A kind of phenol formaldehyde foam and preparation method thereof - Google Patents

A kind of phenol formaldehyde foam and preparation method thereof Download PDF

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Publication number
CN107286568A
CN107286568A CN201710647252.7A CN201710647252A CN107286568A CN 107286568 A CN107286568 A CN 107286568A CN 201710647252 A CN201710647252 A CN 201710647252A CN 107286568 A CN107286568 A CN 107286568A
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parts
mixture
phenol formaldehyde
formaldehyde foam
aluminium
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方碧水
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方碧水
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    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L61/00Compositions of condensation polymers of aldehydes or ketones; Compositions of derivatives of such polymers
    • C08L61/04Condensation polymers of aldehydes or ketones with phenols only
    • C08L61/06Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2361/00Characterised by the use of condensation polymers of aldehydes or ketones; Derivatives of such polymers
    • C08J2361/04Condensation polymers of aldehydes or ketones with phenols only
    • C08J2361/06Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2471/00Characterised by the use of polyethers obtained by reactions forming an ether link in the main chain; Derivatives of such polymers
    • C08J2471/02Polyalkylene oxides
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/18Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20Oxides; Hydroxides
    • C08K3/22Oxides; Hydroxides of metals
    • C08K2003/2217Oxides; Hydroxides of metals of magnesium
    • C08K2003/2224Magnesium hydroxide
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/18Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20Oxides; Hydroxides
    • C08K3/22Oxides; Hydroxides of metals
    • C08K2003/2227Oxides; Hydroxides of metals of aluminium
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/32Phosphorus-containing compounds
    • C08K2003/321Phosphates
    • C08K2003/322Ammonium phosphate
    • C08K2003/323Ammonium polyphosphate
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00Specific properties of additives
    • C08K2201/002Physical properties
    • C08K2201/003Additives being defined by their diameter
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00Specific properties of additives
    • C08K2201/014Additives containing two or more different additives of the same subgroup in C08K
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00Properties
    • C08L2201/02Flame or fire retardant/resistant
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00Properties
    • C08L2201/08Stabilised against heat, light or radiation or oxydation
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2203/00Applications
    • C08L2203/14Applications used for foams
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/03Polymer mixtures characterised by other features containing three or more polymers in a blend

Abstract

The present invention relates to a kind of phenol formaldehyde foam and preparation method thereof, raw material constituent is made up of following ratio by weight:80 100 parts of phenol formaldehyde foam, 35 42 parts of floating bead, 38 parts of magnesium hydroxide, 46 parts of APP, 26 parts of aluminium triphosphate, 6 12 parts of smoke suppressant, 35 parts of Firebrake ZB, 24 parts of TDE, 36 parts of aluminium hydroxide, 35 parts of polyvinyl chloride, 38 parts of polyurethane foams, 36 parts of APEO, 25 parts of ethylenediamine tetra-acetic acid, 37 parts of lauryl sodium sulfate, 6 10 parts of TBHQ, 28 parts of triethylene tetramine, 25 40 parts of ethanol.Material of the present invention is easy to get, and method is simple, low manufacture cost, environmental protection, foaming effect is good, uniform, and expansion rate is fast, internal presentation closed pore shape, density is small, light weight, is readily transported, high temperature resistant, flameproof effect is good, and tensile strength is big, stability is high, does not ftracture, rolls up and stick up, anti-aging, suppress oxidability strong, good insulation preformance increases the service life.

Description

A kind of phenol formaldehyde foam and preparation method thereof
Technical field
The present invention relates to a kind of phenol formaldehyde foam and preparation method thereof.
Background technology
Phenol formaldehyde foam have the laudatory title of " king of insulation material ", is insulated fire acoustic material of new generation.Phenol formaldehyde foam material The material category organic hard aluminium foil froth pulp of macromolecule, is formed by thermosetting phenolic resin foaming.It has lightweight, fire prevention, met Naked light do not burn, smokeless, nontoxic, without dripping off, and temperature in use scope is wide(- 196~+200 DEG C), do not shrink under low temperature environment, Not brittle the characteristics of.
But traditional phenolic foam board dimensional stability is bad, intensity is bad, and plate face is heated easily to occur warpage.For this The reinforcing material that the problem of kind is used in the world at present mainly has two kinds:One kind is glass fibre or fiberglass braided thing, this The addition of material, can significantly improve the intensity index of polyurethane foam plastics, but with the increase of fibre weight, foam The density of body also significantly increases, and, using this enhancement method, technique is more complicated, it is very difficult to obtain reproducible product ;Another is hollow glass micropearl, using hollow glass micropearl as reinforcing material, can extremely efficient increase the anti-of product Compressive Strength and dimensional stability, and the density of foams is without obvious increase.But, the source of glass microballoon and price cause this The practicality of one method is restricted.
The content of the invention
A kind of phenol formaldehyde foam and preparation method thereof is provided the invention aims to overcome the shortcomings of the above.
Technical scheme includes:A kind of phenol formaldehyde foam and preparation method thereof, raw material constituent is by weight It is made up of following ratio:80-100 parts of phenol formaldehyde foam, 35-42 parts of floating bead, 3-8 parts of magnesium hydroxide, 4-6 parts of APP, three 2-6 parts of poly aluminium phosphate, 6-12 parts of smoke suppressant, 3-5 parts of Firebrake ZB, 2-4 parts of TDE, 3-6 parts of aluminium hydroxide, polychlorostyrene second 3-5 parts of alkene, 3-8 parts of polyurethane foams, 3-6 parts of APEO, 2-5 parts of ethylenediamine tetra-acetic acid, lauryl sodium sulfate 3- 7 parts, 6-10 parts of TBHQ, 2-8 parts of triethylene tetramine, 25-40 parts of ethanol.
It is preferred that, the preferred composition proportion of formula constituent is:It is 95 parts of phenol formaldehyde foam, 38 parts of floating bead, 5 parts of magnesium hydroxide, poly- It is 4 parts of ammonium phosphate, 4 parts of aluminium triphosphate, 8 parts of smoke suppressant, 4 parts of Firebrake ZB, 4 parts of TDE, 5 parts of aluminium hydroxide, poly- 3 parts of vinyl chloride, 6 parts of polyurethane foams, 5 parts of APEO, 3 parts of ethylenediamine tetra-acetic acid, 7 parts of lauryl sodium sulfate, 8 parts of TBHQ, 6 parts of triethylene tetramine, 30 parts of ethanol.
It is preferred that, its preparation method is as follows:
A, at room temperature, magnesium hydroxide, APP, aluminium triphosphate, Firebrake ZB and aluminium hydroxide is mixed, stir speed (S.S.) For 300-400r/min, the time is 15-30min, obtains mixture A;
Under B, normal temperature and pressure, by polyurethane foams, APEO, ethylenediamine tetra-acetic acid, lauryl sodium sulfate and three second Alkene tetramine is mixed, and stir speed (S.S.) is 500-600r/min, obtains mixture B;
C, smoke suppressant, TDE, TBHQ and triethylene tetramine mixed, mixture B is added in five times, is stirred Mix uniform back and add ethanol, side adds mixture A, and stir speed (S.S.) is 600-700r/min, and mixture is centrifuged, Centrifuge speed is 2000-2500r/min, and mixture C is obtained after filtering;
D, mixture C and floating bead be stirred, enter mixture filled at high pressure under high temperature critical condition after stirring Phenolic resin, temperature is set to 300-400 DEG C, and pressure is set to 4000-4500KPa, is cooled to after room temperature and is forged, suppressed, Obtain final product.
Beneficial effects of the present invention:
(1)Material of the present invention is easy to get, and method is simple, and low manufacture cost, environmental protection, foaming effect is good, uniform, expansion rate It hurry up, closed pore shape is presented in inside, density is small, and light weight is readily transported, high temperature resistant, and flameproof effect is good, and tensile strength is big, stability Height, does not ftracture, rolls up and stick up, anti-aging, suppresses oxidability by force, good insulation preformance increases the service life.
(2)The smoke suppressant that the present invention is added plays a part of retarded combustion by reducing product burns smoke amount;Addition Floating bead wall is thin hollow, very light in weight, and unit weight is 720kg/m3(Heavy), 418.8kg/m3(Lightweight), about 0.1 millimeter of particle diameter, table Face closure and it is smooth, thermal conductivity is small, refractoriness >=1610 DEG C, and high intensity, wear-resisting, high temperature resistant, insulation insulation, flame-resistant insulation etc. are more Plant characteristic;The phenolic resin of addition has good acid resistance, mechanical property, heat resistance;The dodecyl sulphate of addition Sodium has decontamination, emulsification and excellent foaming power, is a kind of nontoxic anion surfactant, its biological degradability>90%.
Embodiment:
In order to deepen the understanding of the present invention, below in conjunction with embodiment, the invention will be further described, and the embodiment is only used In explaining the present invention, it is not intended to limit the scope of the present invention..
Embodiment 1
A kind of phenol formaldehyde foam and preparation method thereof, raw material constituent is made up of following ratio by weight:Phenol formaldehyde foam 95 Part, 38 parts of floating bead, 5 parts of magnesium hydroxide, 4 parts of APP, 4 parts of aluminium triphosphate, 8 parts of smoke suppressant, 4 parts of Firebrake ZB, ten bromines 4 parts of diphenylethane, 5 parts of aluminium hydroxide, 3 parts of polyvinyl chloride, 6 parts of polyurethane foams, 5 parts of APEO, ethylenediamine tetrem 3 parts of acid, 7 parts of lauryl sodium sulfate, 8 parts of TBHQ, 6 parts of triethylene tetramine, 30 parts of ethanol.
Its preparation method is as follows:
A, at room temperature, magnesium hydroxide, APP, aluminium triphosphate, Firebrake ZB and aluminium hydroxide is mixed, stir speed (S.S.) For 320r/min, the time is 20min, obtains mixture A;
Under B, normal temperature and pressure, by polyurethane foams, APEO, ethylenediamine tetra-acetic acid, lauryl sodium sulfate and three second Alkene tetramine is mixed, and stir speed (S.S.) is 560r/min, obtains mixture B;
C, smoke suppressant, TDE, TBHQ and triethylene tetramine mixed, mixture B is added in five times, is stirred Mix uniform back and add ethanol, side adds mixture A, and stir speed (S.S.) is 680r/min, and mixture is centrifuged, centrifugation Machine speed is 2300r/min, and mixture C is obtained after filtering;
D, mixture C and floating bead be stirred, enter mixture filled at high pressure under high temperature critical condition after stirring Phenolic resin, temperature is set to 350 DEG C, and pressure is set to 4400KPa, is cooled to after room temperature and is forged, suppressed, obtains and finally produce Thing.
Embodiment 2
A kind of phenol formaldehyde foam and preparation method thereof, raw material constituent is made up of following ratio by weight:Phenol formaldehyde foam 90 Part, 40 parts of floating bead, 7 parts of magnesium hydroxide, 5 parts of APP, 3 parts of aluminium triphosphate, 10 parts of smoke suppressant, 4 parts of Firebrake ZB, ten bromines 3 parts of diphenylethane, 5 parts of aluminium hydroxide, 3 parts of polyvinyl chloride, 6 parts of polyurethane foams, 5 parts of APEO, ethylenediamine tetrem 3 parts of acid, 5 parts of lauryl sodium sulfate, 8 parts of TBHQ, 6 parts of triethylene tetramine, 36 parts of ethanol.
Its preparation method is as follows:
A, at room temperature, magnesium hydroxide, APP, aluminium triphosphate, Firebrake ZB and aluminium hydroxide is mixed, stir speed (S.S.) For 320r/min, the time is 30min, obtains mixture A;
Under B, normal temperature and pressure, by polyurethane foams, APEO, ethylenediamine tetra-acetic acid, lauryl sodium sulfate and three second Alkene tetramine is mixed, and stir speed (S.S.) is 600r/min, obtains mixture B;
C, smoke suppressant, TDE, TBHQ and triethylene tetramine mixed, mixture B is added in five times, is stirred Mix uniform back and add ethanol, side adds mixture A, and stir speed (S.S.) is 600r/min, and mixture is centrifuged, centrifugation Machine speed is 2000r/min, and mixture C is obtained after filtering;
D, mixture C and floating bead be stirred, enter mixture filled at high pressure under high temperature critical condition after stirring Phenolic resin, temperature is set to 400 DEG C, and pressure is set to 4000KPa, is cooled to after room temperature and is forged, suppressed, obtains and finally produce Thing.
Embodiment 3
A kind of phenol formaldehyde foam and preparation method thereof, raw material constituent is made up of following ratio by weight:Phenol formaldehyde foam 100 Part, 35 parts of floating bead, 8 parts of magnesium hydroxide, 6 parts of APP, 2 parts of aluminium triphosphate, 6 parts of smoke suppressant, 3 parts of Firebrake ZB, ten bromines 4 parts of diphenylethane, 6 parts of aluminium hydroxide, 5 parts of polyvinyl chloride, 8 parts of polyurethane foams, 3 parts of APEO, ethylenediamine tetrem 3 parts of acid, 6 parts of lauryl sodium sulfate, 10 parts of TBHQ, 8 parts of triethylene tetramine, 25 parts of ethanol.
Its preparation method is as follows:
A, at room temperature, magnesium hydroxide, APP, aluminium triphosphate, Firebrake ZB and aluminium hydroxide is mixed, stir speed (S.S.) For 400r/min, the time is 30min, obtains mixture A;
Under B, normal temperature and pressure, by polyurethane foams, APEO, ethylenediamine tetra-acetic acid, lauryl sodium sulfate and three second Alkene tetramine is mixed, and stir speed (S.S.) is 600r/min, obtains mixture B;
C, smoke suppressant, TDE, TBHQ and triethylene tetramine mixed, mixture B is added in five times, is stirred Mix uniform back and add ethanol, side adds mixture A, and stir speed (S.S.) is 600r/min, and mixture is centrifuged, centrifugation Machine speed is 2500r/min, and mixture C is obtained after filtering;
D, mixture C and floating bead be stirred, enter mixture filled at high pressure under high temperature critical condition after stirring Phenolic resin, temperature is set to 400 DEG C, and pressure is set to 4500KPa, is cooled to after room temperature and is forged, suppressed, obtains and finally produce Thing.
Embodiment 4
A kind of phenol formaldehyde foam and preparation method thereof, raw material constituent is made up of following ratio by weight:Phenol formaldehyde foam 80 Part, 35 parts of floating bead, 8 parts of magnesium hydroxide, 4 parts of APP, 6 parts of aluminium triphosphate, 12 parts of smoke suppressant, 4 parts of Firebrake ZB, ten bromines 3 parts of diphenylethane, 5 parts of aluminium hydroxide, 3 parts of polyvinyl chloride, 8 parts of polyurethane foams, 6 parts of APEO, ethylenediamine tetrem 2 parts of acid, 7 parts of lauryl sodium sulfate, 10 parts of TBHQ, 8 parts of triethylene tetramine, 40 parts of ethanol.
Its preparation method is as follows:
A, at room temperature, magnesium hydroxide, APP, aluminium triphosphate, Firebrake ZB and aluminium hydroxide is mixed, stir speed (S.S.) For 360r/min, the time is 25min, obtains mixture A;
Under B, normal temperature and pressure, by polyurethane foams, APEO, ethylenediamine tetra-acetic acid, lauryl sodium sulfate and three second Alkene tetramine is mixed, and stir speed (S.S.) is 580r/min, obtains mixture B;
C, smoke suppressant, TDE, TBHQ and triethylene tetramine mixed, mixture B is added in five times, is stirred Mix uniform back and add ethanol, side adds mixture A, and stir speed (S.S.) is 680r/min, and mixture is centrifuged, centrifugation Machine speed is 2400r/min, and mixture C is obtained after filtering;
D, mixture C and floating bead be stirred, enter mixture filled at high pressure under high temperature critical condition after stirring Phenolic resin, temperature is set to 370 DEG C, and pressure is set to 4300KPa, is cooled to after room temperature and is forged, suppressed, obtains and finally produce Thing.
Embodiment one is most preferred embodiment in above example, and foaming effect is good, uniform, is not in cracking, rolls up and stick up Phenomenon, tensile property is good, good insulating;Five additions of mixture B parts, uniformity is good;Smoke suppressant and polyurethane foams coordinate More preferably, gas release is big, and bubble area is small, and fire protecting performance is higher for effect.
Explanation embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the technology of this area For personnel, within the spirit and principles of the invention, any modification, equivalent substitution and improvements made etc. should be included in Within protection scope of the present invention.

Claims (3)

1. a kind of phenol formaldehyde foam and preparation method thereof, it is characterised in that:Raw material constituent is by weight by following ratio group Into:80-100 parts of phenol formaldehyde foam, 35-42 parts of floating bead, 3-8 parts of magnesium hydroxide, 4-6 parts of APP, aluminium triphosphate 2-6 It is part, 6-12 parts of smoke suppressant, 3-5 parts of Firebrake ZB, 2-4 parts of TDE, 3-6 parts of aluminium hydroxide, 3-5 parts of polyvinyl chloride, poly- 3-8 parts of urethane foaming agent, 3-6 parts of APEO, 2-5 parts of ethylenediamine tetra-acetic acid, 3-7 parts of lauryl sodium sulfate, TBHQ 6-10 parts, 2-8 parts of triethylene tetramine, 25-40 parts of ethanol.
2. a kind of phenol formaldehyde foam according to claim 1 and preparation method thereof, it is characterised in that:Formula constituent it is preferred into Distribution ratio is:95 parts of phenol formaldehyde foam, 38 parts of floating bead, 5 parts of magnesium hydroxide, 4 parts of APP, 4 parts of aluminium triphosphate, smoke suppressant 8 parts, 4 parts of Firebrake ZB, 4 parts of TDE, 5 parts of aluminium hydroxide, 3 parts of polyvinyl chloride, 6 parts of polyurethane foams, polyoxy second 5 parts of alkene ether, 3 parts of ethylenediamine tetra-acetic acid, 7 parts of lauryl sodium sulfate, 8 parts of TBHQ, 6 parts of triethylene tetramine, 30 parts of ethanol.
3. a kind of phenol formaldehyde foam according to claim 1 and preparation method thereof, it is characterised in that:Its preparation method is as follows:
At room temperature, magnesium hydroxide, APP, aluminium triphosphate, Firebrake ZB and aluminium hydroxide are mixed, stir speed (S.S.) is 300-400r/min, the time is 15-30min, obtains mixture A;
Under normal temperature and pressure, by polyurethane foams, APEO, ethylenediamine tetra-acetic acid, lauryl sodium sulfate and triethylene Tetramine is mixed, and stir speed (S.S.) is 500-600r/min, obtains mixture B;
Smoke suppressant, TDE, TBHQ and triethylene tetramine are mixed, mixture B, stirring are added in five times Uniform back adds ethanol, and side adds mixture A, and stir speed (S.S.) is 600-700r/min, and mixture is centrifuged, from Scheming speed is 2000-2500r/min, and mixture C is obtained after filtering;
Mixture C is stirred with floating bead, entered mixture filled at high pressure under high temperature critical condition after stirring Phenolic resin, temperature is set to 300-400 DEG C, and pressure is set to 4000-4500KPa, is cooled to after room temperature and is forged, suppressed, obtains Final product.
CN201710647252.7A 2017-08-01 2017-08-01 A kind of phenol formaldehyde foam and preparation method thereof Withdrawn CN107286568A (en)

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CN201710647252.7A CN107286568A (en) 2017-08-01 2017-08-01 A kind of phenol formaldehyde foam and preparation method thereof

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102268172A (en) * 2010-08-25 2011-12-07 田瑞军 Rigid spray phenolic foam
CN103613904A (en) * 2013-11-27 2014-03-05 山东圣泉化工股份有限公司 Low-density low-acidicity phenol formaldehyde foam board and preparation technique thereof
CN103694626A (en) * 2013-12-19 2014-04-02 山东圣泉化工股份有限公司 Phenolic foam

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102268172A (en) * 2010-08-25 2011-12-07 田瑞军 Rigid spray phenolic foam
CN103613904A (en) * 2013-11-27 2014-03-05 山东圣泉化工股份有限公司 Low-density low-acidicity phenol formaldehyde foam board and preparation technique thereof
CN103694626A (en) * 2013-12-19 2014-04-02 山东圣泉化工股份有限公司 Phenolic foam

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Application publication date: 20171024