CN107603042A - Foamed polystyrene insulation material and preparation method thereof - Google Patents
Foamed polystyrene insulation material and preparation method thereof Download PDFInfo
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- CN107603042A CN107603042A CN201710657284.5A CN201710657284A CN107603042A CN 107603042 A CN107603042 A CN 107603042A CN 201710657284 A CN201710657284 A CN 201710657284A CN 107603042 A CN107603042 A CN 107603042A
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Abstract
The present invention proposes a kind of foamed polystyrene insulation material and preparation method thereof, according to the number of parts by weight, including following components：70~90 parts of 50~70 parts of polystyrene, 4~8 parts of aerosil, 3~6 parts of styrene-acrylic emulsion, 10~20 parts of flyash, 5~10 parts of polypropylene fibre, 4~8 parts of composite flame-retardant agent, 1~5 part of composite foamable agent, 0.5~1.5 part of stabilizer and water；Wherein, the composite flame-retardant agent is mainly prepared by magnesium salts, nano imvite and CNT, and the composite foamable agent is mainly prepared by dinitrosopentamethylene tetramine and diatomite.Not only combustibility reaches the standards of A level incombustible materials to the insulation material, and frothing percentage is high, thermal conductivity factor is low.
Description
Technical field
The invention belongs to building material technical field, and in particular to a kind of foamed polystyrene insulation material and its preparation side
Method.
Background technology
External thermal insulation system is formed and is applicable by heat-insulation layer, protective layer and fixed material (adhesive, anchoring piece etc.)
General name is constructed in the non-bearing heat-preserving installed in exterior wall surface.External wall outer insulation can mitigate the influence of cold bridge, while protect master
Body walling is not denatured stress by great temperature, and huge contribution is made that in terms of building energy conservation, is current China's building wall
The energy-saving technological measure being most widely used in energy-saving, and the insulation way that country vigorously advocates at present.
At present, the external thermal insulation system applied to China mainly has following several forms：Expansion polystyrene plate (EPS)
Thin-coat plaster wall outer heat preservation system, large die built-in (having net, without net) external thermal insulation system, glue powder polyphenyl granule exterior wall external thermal insulation system
System, polyurethane (spraying, sheet material) external thermal insulation system, extruded sheet (XPS) external thermal insulation system etc..Wherein EPS sheet is with valency
The advantages that lattice are cheap, construction is simple occupies the very big share in insulation market.
The thermal conductivity factor of EPS particles is low, and thermal and insulating performance is excellent, is preferable insulation material.PS foamed plastics category is easy
Combustible material, its limited oxygen index are only 10%, and generation styrene monomer, styrene dimer and hydrocarbon are decomposed after meeting fire
(such as benzene, low alkylbenzene and a small amount of oxygen-containing aromatic compound), has preferable calorific value.PS foamed plastics is also easy to produce band when burning
The melting drippage of naked light, can ignite other combustibles, even if removing burning things which may cause a fire disaster remains to sustained combustion, therefore be applied stacking and building
Fire easily occurs during work.
The content of the invention
The present invention proposes a kind of foamed polystyrene insulation material, and not only to reach A levels non-ignitable for combustibility for the insulation material
The standard of material, and frothing percentage is high, thermal conductivity factor is low.
The technical proposal of the invention is realized in this way：
It is 50~70 parts of polystyrene, 4~8 parts of aerosil, 3~6 parts of styrene-acrylic emulsion, 10~20 parts of flyash, poly-
5~10 parts of tacryl, 4~8 parts of composite flame-retardant agent, 1~5 part of composite foamable agent, 0.5~1.5 part of stabilizer and water 70~90
Part；Wherein, the composite flame-retardant agent is mainly prepared by magnesium salts, nano imvite and CNT, described composite foamed
Agent is mainly prepared by dinitrosopentamethylene tetramine and diatomite.
Preferably, the preparation method of the composite flame-retardant agent：
The CNT of the nano imvite of 5~10 parts by weight and 3~8 parts by weight is added to 80~90 parts by weight
In the ethanol solution of magnesium salts, the sodium sulfate of polyethenoxy ether of fatty alcohol that 1~3 parts by weight are added after disperseing, ultrasound point are sufficiently stirred
50~100 parts by weight ammoniacal liquor are added after dissipating in scattered suspension, obtain mixed liquor, the mixed liquor is transferred to 110~
Isothermal reaction in 180 DEG C of water heating kettles, question response carry out subsequent treatment after terminating, obtain composite flame-retardant agent.
Further, the magnesium salts is the one or more in magnesium chloride, magnesium sulfate, magnesium nitrate, and the CNT is
Functionalized multi-wall carbonnanotubes.
Further, the preparation method of the composite foamable agent：
The dinitrosopentamethylene tetramine of 30~40 parts by weight is dissolved in the dimethyl alum of 70~100 parts by weight and obtained
To dinitrosopentamethylene tetramine solution, add in the diatomite of 10~20 parts by weight, be warming up to 50~60 DEG C and surpassed
3~4h is swung in acoustic shock, and composite foamable agent can be obtained by being then centrifuged for drying.
It is a further object to provide a kind of preparation method of foamed polystyrene insulation material, including following step
Suddenly：
1) required polystyrene and aerosil are weighed by formula rate first, then heats both in steam
Mixed under conditions of 100~150 DEG C, obtain polystyrene Silica hydrogel mixture；
2) and then by polystyrene Silica hydrogel mixture, composite flame-retardant agent, water and composite foamable agent add in foaming machine
Foaming, stir and then add styrene-acrylic emulsion, flyash, polypropylene fibre and stabilizer and be mixed evenly, mixed
Slurry；
3) alkali-proof glass fiber mesh is laid in mold bottom, by mixed slurry pouring molding；Finally on slurry surface
One layer of grid cloth is repaved, natural curing forms.
Beneficial effects of the present invention：
The foamed polystyrene insulation material of the present invention is entered under steam condition by aerosil with polystyrene
Row reaction forms composite particles, then with composite flame-retardant agent in the presence of composite foamable agent, improves the anti-flammability of insulation material
Energy.
The insulation material fire retardant of the present invention is prepared by magnesium salts, nano imvite and CNT, not only fire-retardant
Rate is high, and reduces infringement of the fire retardant to insulation material mechanical performance.Composite foamable agent is mainly by dinitroso pentamethylene four
Amine is prepared with diatomite, and it, which can not only improve frothing percentage, can also reduce foaming aperture, so as to improve its flame retarding efficiency.
Foamed polystyrene insulation material 0.015~0.020w/m.k of thermal conductivity factor of the present invention, compression strength >=
32MPa, its combustibility reach the requirement of A1 levels incombustible material as defined in GB8624-1997 standards.
Embodiment
Embodiment 1
The preparation method of composite flame-retardant agent：
The functionalized multi-wall carbonnanotubes of the nano imvite of 8 parts by weight and 6 parts by weight are added to 85 parts by weight
In the ethanol solution of magnesium sulfate, the sodium sulfate of polyethenoxy ether of fatty alcohol that 2 parts by weight are added after disperseing, ultrasonic disperse are sufficiently stirred
70 parts by weight ammoniacal liquor are added in scattered suspension afterwards, obtain mixed liquor, the mixed liquor is transferred in 150 DEG C of water heating kettles
Isothermal reaction, question response carry out subsequent treatment after terminating, obtain composite flame-retardant agent.
The preparation method of composite foamable agent：
The dinitrosopentamethylene tetramine of 30 parts by weight is dissolved in the dimethyl alum of 70 parts by weight and obtains two nitrous
The amine aqueous solution of base pentamethylene four, is added in the diatomite of 10 parts by weight, is warming up to 60 DEG C of progress ultrasonic vibration 3h, is then centrifuged for
Drying can obtain composite foamable agent.
Embodiment 2
The preparation method of composite flame-retardant agent：
The CNT of the nano imvite of 10 parts by weight and 8 parts by weight is added to the second of the magnesium chloride of 80 parts by weight
In alcoholic solution, be sufficiently stirred it is scattered after add the sodium sulfate of polyethenoxy ether of fatty alcohol of 3 parts by weight, scattered after ultrasonic disperse
Suspension in add 100 parts by weight ammoniacal liquor, obtain mixed liquor, the mixed liquor be transferred to isothermal reaction in 180 DEG C of water heating kettles,
Question response carries out subsequent treatment after terminating, and obtains composite flame-retardant agent.
The preparation method of composite foamable agent：
The dinitrosopentamethylene tetramine of 40 parts by weight is dissolved in the dimethyl alum of 100 parts by weight and obtains two nitrous
The amine aqueous solution of base pentamethylene four, is added in the diatomite of 20 parts by weight, is warming up to 50 DEG C of progress ultrasonic vibration 4h, is then centrifuged for
Drying can obtain composite foamable agent.
Embodiment 3
A kind of foamed polystyrene insulation material, according to the number of parts by weight, including following components：60 parts of polystyrene,
6 parts of aerosil, 5 parts of styrene-acrylic emulsion, 16 parts of flyash, 7 parts of polypropylene fibre, embodiment 16 parts of composite flame-retardant agent,
1 part of 4 parts of composite foamable agent, the magnesium stearate and 78 parts of water of embodiment 1.
Preparation method, comprise the following steps：
1) required polystyrene and aerosil are weighed by formula rate first, then heats both in steam
Mixed under conditions of 130 DEG C, obtain polystyrene Silica hydrogel mixture；
2) and then by the compound of polystyrene Silica hydrogel mixture, the composite flame-retardant agent of embodiment 1, water and embodiment 1
Foaming agent is added in foaming machine and foamed, and is stirred and then is added styrene-acrylic emulsion, flyash, polypropylene fibre and magnesium stearate and mix
Conjunction stirs, and obtains mixed slurry；
3) alkali-proof glass fiber mesh is laid in mold bottom, by mixed slurry pouring molding；Finally on slurry surface
One layer of grid cloth is repaved, natural curing forms.
Embodiment 4
A kind of foamed polystyrene insulation material, according to the number of parts by weight, including following components：50 parts of polystyrene,
4 parts of aerosil, 3 parts of styrene-acrylic emulsion, 20 parts of flyash, 10 parts of polypropylene fibre, embodiment 24 parts of composite flame-retardant agent,
70 parts of 1 part of the composite foamable agent of embodiment 1,0.5 part of odium stearate and water.
Preparation method, comprise the following steps：
1) required polystyrene and aerosil are weighed by formula rate first, then heats both in steam
Mixed under conditions of 100 DEG C, obtain polystyrene Silica hydrogel mixture；
2) and then by the compound of polystyrene Silica hydrogel mixture, the composite flame-retardant agent of embodiment 2, water and embodiment 1
Foaming agent is added in foaming machine and foamed, and is stirred and then is added styrene-acrylic emulsion, flyash, polypropylene fibre and stearate and mix
Conjunction stirs, and obtains mixed slurry；
3) alkali-proof glass fiber mesh is laid in mold bottom, by mixed slurry pouring molding；Finally on slurry surface
One layer of grid cloth is repaved, natural curing forms.
Embodiment 5
A kind of foamed polystyrene insulation material, according to the number of parts by weight, including following components：70 parts of polystyrene,
8 parts of aerosil, 6 parts of styrene-acrylic emulsion, 10 parts of flyash, 5 parts of polypropylene fibre, embodiment 18 parts of composite flame-retardant agent,
1.5 parts of 5 parts of composite foamable agent, the magnesium stearate and 90 parts of water of embodiment 2.
Preparation method, comprise the following steps：
1) required polystyrene and aerosil are weighed by formula rate first, then heats both in steam
Mixed under conditions of 150 DEG C, obtain polystyrene Silica hydrogel mixture；
And then the compound hair by polystyrene Silica hydrogel mixture, the composite flame-retardant agent of embodiment 1, water and embodiment 2 2)
Infusion is added in foaming machine and foamed, and is stirred and then is added styrene-acrylic emulsion, flyash, polypropylene fibre and mixed with magnesium stearate
Stir, obtain mixed slurry；
3) alkali-proof glass fiber mesh is laid in mold bottom, by mixed slurry pouring molding；Finally on slurry surface
One layer of grid cloth is repaved, natural curing forms.
Test example
The properties of the foamed polystyrene insulation material of embodiment 3~5 are tested according to corresponding standard,
As a result referring to table 1.
The performance test results of the embodiment of the present invention 3~5 of table 1
| Embodiment | Thermal conductivity factor (w/m.k) | Fire-protection rating |
| 3 | 0.018 | A1 |
| 4 | 0.015 | A1 |
| 5 | 0.020 | A1 |
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God any modification, equivalent substitution and improvements made etc., should be included in the scope of the protection with principle.
Claims (5)
- A kind of 1. foamed polystyrene insulation material, it is characterised in that according to the number of parts by weight, including following components：50~70 parts of polystyrene, 4~8 parts of aerosil, 3~6 parts of styrene-acrylic emulsion, 10~20 parts of flyash, polypropylene 70~90 parts of 5~10 parts of fiber, 4~8 parts of composite flame-retardant agent, 1~5 part of composite foamable agent, 0.5~1.5 part of stabilizer and water；Its In, the composite flame-retardant agent is mainly prepared by magnesium salts, nano imvite and CNT, and the composite foamable agent is main It is prepared by dinitrosopentamethylene tetramine and diatomite.
- 2. foamed polystyrene insulation material according to claim 1, it is characterised in that the preparation of the composite flame-retardant agent Method：The CNT of the nano imvite of 5~10 parts by weight and 3~8 parts by weight is added to the magnesium salts of 80~90 parts by weight Ethanol solution in, be sufficiently stirred it is scattered after add the sodium sulfate of polyethenoxy ether of fatty alcohol of 1~3 parts by weight, after ultrasonic disperse 50~100 parts by weight ammoniacal liquor are added in scattered suspension, mixed liquor is obtained, the mixed liquor is transferred to 110~180 DEG C Isothermal reaction in water heating kettle, question response carry out subsequent treatment after terminating, obtain composite flame-retardant agent.
- 3. foamed polystyrene insulation material according to claim 2, it is characterised in that the magnesium salts is magnesium chloride, sulphur One or more in sour magnesium, magnesium nitrate, the CNT are functionalized multi-wall carbonnanotubes.
- 4. foamed polystyrene insulation material according to claim 1, it is characterised in that the preparation of the composite foamable agent Method：The dinitrosopentamethylene tetramine of 30~40 parts by weight is dissolved in the dimethyl alum of 70~100 parts by weight and obtains two Dinitrosopentamethylenetetramine solution, add in the diatomite of 10~20 parts by weight, be warming up to 50~60 DEG C and carry out ultrasonic shake 3~4h is swung, composite foamable agent can be obtained by being then centrifuged for drying.
- 5. the preparation method of foamed polystyrene insulation material as claimed in claim 1, it is characterised in that including following step Suddenly：1) required polystyrene and aerosil are weighed by formula rate first, both are then heated 100 in steam Mixed under conditions of~150 DEG C, obtain polystyrene Silica hydrogel mixture；2) and then polystyrene Silica hydrogel mixture, composite flame-retardant agent, water and composite foamable agent are added in foaming machine and foamed, Stir and then add styrene-acrylic emulsion, flyash, polypropylene fibre and stabilizer to be mixed evenly, obtain mixed slurry；3) alkali-proof glass fiber mesh is laid in mold bottom, by mixed slurry pouring molding；Finally repaved on slurry surface One layer of grid cloth, natural curing form.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111153671A (en) * | 2020-02-26 | 2020-05-15 | 廊坊华津保温材料有限公司 | Production process of integrated non-dismantling external wall template with thermal insulation structure |
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| CN111153671A (en) * | 2020-02-26 | 2020-05-15 | 廊坊华津保温材料有限公司 | Production process of integrated non-dismantling external wall template with thermal insulation structure |
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Application publication date: 20180119 |