CN108751790A - A kind of preparation method of insulated fire door - Google Patents
A kind of preparation method of insulated fire door Download PDFInfo
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- CN108751790A CN108751790A CN201810759282.1A CN201810759282A CN108751790A CN 108751790 A CN108751790 A CN 108751790A CN 201810759282 A CN201810759282 A CN 201810759282A CN 108751790 A CN108751790 A CN 108751790A
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/02—Macromolecular compounds
- C04B26/04—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C04B26/08—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing halogen
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/02—Agglomerated materials, e.g. artificial aggregates
- C04B18/027—Lightweight materials
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
- E06B3/70—Door leaves
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B5/00—Doors, windows, or like closures for special purposes; Border constructions therefor
- E06B5/10—Doors, windows, or like closures for special purposes; Border constructions therefor for protection against air-raid or other war-like action; for other protective purposes
- E06B5/16—Fireproof doors or similar closures; Adaptations of fixed constructions therefor
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Special Wing (AREA)
- Building Environments (AREA)
Abstract
The invention discloses a kind of preparation methods of insulated fire door, are related to fire resistant doorsets field, include the following steps：(1) preparation of the fire-retardant particle of polystyrene；(2) preparation of the fire-retardant particle of polystyrene prefoam；(3) preparation of fireproof heat insulating filler；(4) coating fire prevention lotion；(5) preparation of insulated fire door；The method of the present invention is added by the way that flame-retardant expanded particle is made in granules of polystyrene processing foaming in door core, enhance the flame retardant effect of door core and mitigates the weight of door core, heat insulation and preservation effect is good, one layer of fire prevention lotion and fiberglass gridding cloth are coated in door frame surface, multistage fireprotection layer improves flameproof effect and the fire endurance time of fire resistant doorsets.
Description
Technical field
The present invention relates to fire resistant doorsets fields, and in particular to a kind of preparation method of insulated fire door.
Background technology
Fire resistant doorsets are door frames, and door core packing material is constituted, and the packing material of door panel is the core material of fire resistant doorsets,
Quality and performance are particularly important.The conventionally employed rock wool of packing material of door panel, aluminium silicate wool, mineral wool, pearlite slab, foaming chlorine
The materials such as oxygen magnesia cement plate, cement board.Aluminium silicate wool plate, rock wool, mineral wool or mineral wool class fireproof door plate, these materials
Although generating pollution during light weight, heat-insulated good, high energy consumption in production process, production process and use, it is difficult to reach ring
Guaranteed request, perlite fireproof door core board, although fire line is preferable, plank has corruption using the molding of the strong basicities bonding agents such as waterglass
Corrosion, tenacity is poor, the easy breakage of product in the production and use process；
Chinese patent CN105525845B discloses a kind of manufacture craft of cement foam board fire resistant doorsets, described cement foamed
Plate fire resistant doorsets include fire prevention door face board, fire resistant doorsets backboard and cement foamed anti-fire door core board, the cement foamed fire-resistant door core
Plate is set between fire prevention door face board and fire resistant doorsets backboard and is complex as a whole, and after coating technique and heat pressing process, completes water
The making of mud foamed board fire resistant doorsets, preparation method is simple, and raw material sources are extensive, but there are size receipts for the cement foamed pungent plate of fire prevention
Contracting is big, is fallen off with dry and cracked, influences adhesive effect, while the thermal and insulating performance of cement is poor, causes indoor heat losses, waste
The energy.
A kind of cast-in-situ fireproof material of fireproof door of Chinese patent CN101519312B and manufacturing method of fireproof door, component include
Magnesia, magnesium chloride solution, remodeling agent, staple fiber and hardened fly ashes, each component is by weight respectively magnesia 30-60%: chlorine
Change magnesium solution 17-50%: remodeling agent 0.5-3%: staple fiber 0.1-1%: flyash 5-30% is mixed into liquid inorganic gel material
Material.The inorganic coagulation material that this programme uses uses cast-in-place making, does not have to gluing and prefabricated inner core, avoids in the prior art
The uneven situation of crack, filling, material mixing, has fully phased out the material of heated volatilization pernicious gas, has been filled in keel shoe
The inorganic coagulation material for including a large amount of bubbles, alleviates the weight of entire fire resistant doorsets, but chlorine oxygen magnesium there are moisture absorption, return halogen and return
Frost, fire endurance time short crucial technical problem.
Invention content
For problems of the prior art, the present invention provides a kind of preparation method of insulated fire door, the present invention
Method is added by the way that flame-retardant expanded particle is made in granules of polystyrene processing foaming in door core, enhance door core flame retardant effect and
Mitigate the weight of door core, heat insulation and preservation effect is good, and one layer of fire prevention lotion and fiberglass gridding cloth are coated in door frame surface, multistage
Fireprotection layer improves flameproof effect and the fire endurance time of fire resistant doorsets.
In order to achieve the above object, the present invention is achieved through the following technical solutions：
A kind of preparation method of insulated fire door, includes the following steps：
(1) by granules of polystyrene, nano zine oxide, nano-aluminum hydroxide and expanded graphite and suitable γ-aminopropyl
After being uniformly mixed in triethoxysilane addition mixed at high speed, extruding pelletization is added twin-screw extrude, polyphenyl second is obtained
The fire-retardant particle of alkene；
(2) the fire-retardant particle of polystyrene is put into vapour pressure 0.2-0.4MPa, be preheating in 75-85 degrees Celsius of prefoaming machine
Prefoam is carried out, was cured by 8 hours, obtains the fire-retardant particle of polystyrene prefoam；
(3) by the fire-retardant particle of polystyrene prefoam, polypropylene fibre, hollow glass micropearl, diatom made from step (2)
Soil, borax, sepiolite fibre, foaming agent, PVC paste resin, be added high-speed stirred agent machine in be uniformly mixed to get
Fireproof heat insulating filler, it is spare；
(4) one layer of fire prevention lotion is uniformly coated in door leaf inside casing surface and shop front cover inner surface, it is spare after solidification；
(5) bottom is laid with layer of glass grid cloth in the door leaf inside casing of step (4) processing, in fiberglass gridding
On cloth after uniformly distributed fireproof heat insulating filler, pre-molding, after being laid with layer of glass grid cloth on fireproof heat insulating filler,
The processed shop front cover board of step (4) is installed, hot pressing is to get the insulated fire door in feeding hot press；
Preferably, in the step (1) the fire-retardant particle of polystyrene include following parts by weight meter raw material：Polystyrene
Grain 50-60 parts, three second of 5-10 parts of nano zine oxide, 12-18 parts of nano-aluminum hydroxide and 3-7 parts of expanded graphite and γ-aminopropyl
1.5-2.8 parts of oxysilane.
Preferably, the extrusion temperature of double screw extruder is 236-243 degrees Celsius in the step (1), and screw speed is
90-100 revs/min.
Preferably, the insulated fire filler in the step (3) includes the raw material of following parts by weight meter：Polystyrene is sent out in advance
Steep fire-retardant particle 25-30 parts, 12-17 parts of polypropylene fibre, 8-14 parts of hollow glass micropearl, 10-18 parts of diatomite, borax 4-9
Part, 16-22 parts of sepiolite fibre, 0.8-1.8 parts of foaming agent and 10-16 parts of PVC paste resin.
Preferably, the insulated fire filler in the step (3) includes the raw material of following parts by weight meter：Polystyrene is sent out in advance
Steep 28 parts of fire-retardant particle, 15 parts of polypropylene fibre, 12 parts of hollow glass micropearl, 14 parts of diatomite, 7 parts of borax, sepiolite fibre
12 parts of 20 parts, 1.4 parts of foaming agent and PVC paste resin.
Preferably, the foaming agent is ammonium hydrogen carbonate and lauryl sodium sulfate according to mass ratio 5:1 mixing composition.
Preferably, the fire prevention lotion in the step (4) is acrylic emulsion, nano silicon dioxide, expanded vermiculite powder, gathers
Ammonium phosphate, melamine and pentaerythrite are according to mass ratio 34-38:5-10:2-4:6-12:5-10:4-9 mixing compositions.
Preferably, the fire prevention lotion in the step (4) is acrylic emulsion, nano silicon dioxide, expanded vermiculite powder, gathers
Ammonium phosphate, melamine and pentaerythrite are according to mass ratio 36:8:2.8:10:8:7 mixing compositions.
Preferably, the pre-molding condition in the step (5) is pressure 35-40MPa under vacuum condition, and temperature is
68-74 degrees Celsius, squeeze time is 20-25 minutes.
Preferably, the hot pressing condition in the step (5) is：90-95 degrees Celsius of hot pressing temperature, hot pressing pressure 15-
20MPa, hot pressing time 36-42 minutes.
The present invention has following advantageous effect：
(1) the method for the present invention is added by the way that flame-retardant expanded particle is made in granules of polystyrene processing foaming in door core, is increased
The flame retardant effect of strong door core and the weight for mitigating door core, heat insulation and preservation effect is good, door frame surface coat one layer of fire prevention lotion and
Fiberglass gridding cloth, multistage fireprotection layer improve flameproof effect and the fire endurance time of fire resistant doorsets.
(2) pass through nano zine oxide, nano-aluminum hydroxide and expanded graphite modified polystyrene in preparation method of the present invention
Particle improves the anti-flammability and heatproof weatherability of granules of polystyrene, and insulation effect is good, after prefoaming machine prefoam, improves
The volume of granules of polystyrene, while the proportion of granules of polystyrene is reduced, the weight of fire resistant doorsets is reduced, while improving poly-
The impact resistance and adiabatic heat insulating effect of styrene pellets.
(3) added with polypropylene fibre, the cracking resistance of sepiolite fibre reinforcing material and anti-in fireproof heat insulating filler of the present invention
Impact property, while hollow glass micropearl, diatomite and sepiolite fibre can be with the insulation capacities of reinforcing material.Binder
Using PVC paste resin, performance is stablized, and stability is good, and has certain mechanical strength, easy to use.
(4) present invention coats one layer of fire prevention lotion in doorframe inner surface, and fire prevention lotion is acrylic emulsion, nanometer titanium dioxide
Silicon, expanded vermiculite powder, ammonium polyphosphate, melamine and pentaerythrite mixing form, under high temperature, expanded vermiculite powder, ammonium polyphosphate
Surface layer is formed with melamine and forms flame resistant protective layer, is enhanced the effect of fire resistant doorsets, is improved the fire endurance time of fire resistant doorsets.
Specific implementation mode
The specific implementation mode of the present invention is further described with reference to embodiment, following embodiment is only used for more
Technical scheme of the present invention is clearly demonstrated, and not intended to limit the protection scope of the present invention.
Embodiment 1
A kind of preparation method of insulated fire door, includes the following steps：
(1) by granules of polystyrene, nano zine oxide, nano-aluminum hydroxide and expanded graphite and suitable γ-aminopropyl
After being uniformly mixed in triethoxysilane addition mixed at high speed, extruding pelletization is added twin-screw extrude, polyphenyl second is obtained
The fire-retardant particle of alkene；
(2) the fire-retardant particle of polystyrene is put into vapour pressure 0.2MPa, is preheating in 75 degrees Celsius of prefoaming machine and carries out in advance
Foaming cured by 8 hours, obtains the fire-retardant particle of polystyrene prefoam；
(3) by the fire-retardant particle of polystyrene prefoam, polypropylene fibre, hollow glass micropearl, diatom made from step (2)
Soil, borax, sepiolite fibre, foaming agent, PVC paste resin, be added high-speed stirred agent machine in be uniformly mixed to get
Fireproof heat insulating filler, it is spare；
(4) one layer of fire prevention lotion is uniformly coated in door leaf inside casing surface and shop front cover inner surface, it is spare after solidification；
(5) bottom is laid with layer of glass grid cloth in the door leaf inside casing of step (4) processing, in fiberglass gridding
On cloth after uniformly distributed fireproof heat insulating filler, pre-molding, after being laid with layer of glass grid cloth on fireproof heat insulating filler,
The processed shop front cover board of step (4) is installed, hot pressing is to get the insulated fire door in feeding hot press；
The fire-retardant particle of polystyrene includes the raw material of following parts by weight meter in step (1)：Granules of polystyrene 50 part, nanometer
3 parts of 5 parts of zinc oxide, 12 parts of nano-aluminum hydroxide and expanded graphite and 1.5 parts of gamma-aminopropyl-triethoxy-silane.
The extrusion temperature of double screw extruder is 236 degrees Celsius in step (1), and screw speed is 90 revs/min.
Insulated fire filler in step (3) includes the raw material of following parts by weight meter：The fire-retardant particle of polystyrene prefoam
25 parts, 12 parts of polypropylene fibre, 8 parts of hollow glass micropearl, 10 parts of diatomite, 4 parts of borax, 16 parts of sepiolite fibre, foaming agent
0.8 part and 10 parts of PVC paste resin.
Foaming agent is ammonium hydrogen carbonate and lauryl sodium sulfate according to mass ratio 5:1 mixing composition.
Fire prevention lotion in step (4) is acrylic emulsion, nano silicon dioxide, expanded vermiculite powder, ammonium polyphosphate, trimerization
Cyanamide and pentaerythrite are according to mass ratio 34:5:2:6:5:4 mixing compositions.
Pre-molding condition in step (5) is pressure 35MPa under vacuum condition, and temperature is 68 degrees Celsius, when precompressed
Between be 20 minutes.
Hot pressing condition in step (5) is：90 degrees Celsius, hot pressing pressure 15MPa of hot pressing temperature, hot pressing time 36 minutes.
Embodiment 2
A kind of preparation method of insulated fire door, includes the following steps：
(1) by granules of polystyrene, nano zine oxide, nano-aluminum hydroxide and expanded graphite and suitable γ-aminopropyl
After being uniformly mixed in triethoxysilane addition mixed at high speed, extruding pelletization is added twin-screw extrude, polyphenyl second is obtained
The fire-retardant particle of alkene；
(2) the fire-retardant particle of polystyrene is put into vapour pressure 0.4MPa, is preheating in 85 degrees Celsius of prefoaming machine and carries out in advance
Foaming cured by 8 hours, obtains the fire-retardant particle of polystyrene prefoam；
(3) by the fire-retardant particle of polystyrene prefoam, polypropylene fibre, hollow glass micropearl, diatom made from step (2)
Soil, borax, sepiolite fibre, foaming agent, PVC paste resin, be added high-speed stirred agent machine in be uniformly mixed to get
Fireproof heat insulating filler, it is spare；
(4) one layer of fire prevention lotion is uniformly coated in door leaf inside casing surface and shop front cover inner surface, it is spare after solidification；
(5) bottom is laid with layer of glass grid cloth in the door leaf inside casing of step (4) processing, in fiberglass gridding
On cloth after uniformly distributed fireproof heat insulating filler, pre-molding, after being laid with layer of glass grid cloth on fireproof heat insulating filler,
The processed shop front cover board of step (4) is installed, hot pressing is to get the insulated fire door in feeding hot press；
The fire-retardant particle of polystyrene includes the raw material of following parts by weight meter in step (1)：Granules of polystyrene 60 part, nanometer
7 parts of 10 parts of zinc oxide, 18 parts of nano-aluminum hydroxide and expanded graphite and 2.8 parts of gamma-aminopropyl-triethoxy-silane.
The extrusion temperature of double screw extruder is 243 degrees Celsius in step (1), and screw speed is 100 revs/min.
Insulated fire filler in step (3) includes the raw material of following parts by weight meter：The fire-retardant particle of polystyrene prefoam
30 parts, 17 parts of polypropylene fibre, 14 parts of hollow glass micropearl, 18 parts of diatomite, 9 parts of borax, 22 parts of sepiolite fibre, foaming agent
1.8 parts and 16 parts of PVC paste resin.
Foaming agent is ammonium hydrogen carbonate and lauryl sodium sulfate according to mass ratio 5:1 mixing composition.
Fire prevention lotion in step (4) is acrylic emulsion, nano silicon dioxide, expanded vermiculite powder, ammonium polyphosphate, trimerization
Cyanamide and pentaerythrite are according to mass ratio 38:10:4:12:10:9 mixing compositions.
Pre-molding condition in step (5) is pressure 40MPa under vacuum condition, and temperature is 74 degrees Celsius, when precompressed
Between be 25 minutes.
Hot pressing condition in step (5) is：95 degrees Celsius, hot pressing pressure 20MPa of hot pressing temperature, hot pressing time 42 minutes.
Embodiment 3
A kind of preparation method of insulated fire door, includes the following steps：
(1) by granules of polystyrene, nano zine oxide, nano-aluminum hydroxide and expanded graphite and suitable γ-aminopropyl
After being uniformly mixed in triethoxysilane addition mixed at high speed, extruding pelletization is added twin-screw extrude, polyphenyl second is obtained
The fire-retardant particle of alkene；
(2) the fire-retardant particle of polystyrene is put into vapour pressure 0.3MPa, is preheating in 80 degrees Celsius of prefoaming machine and carries out in advance
Foaming cured by 8 hours, obtains the fire-retardant particle of polystyrene prefoam；
(3) by the fire-retardant particle of polystyrene prefoam, polypropylene fibre, hollow glass micropearl, diatom made from step (2)
Soil, borax, sepiolite fibre, foaming agent, PVC paste resin, be added high-speed stirred agent machine in be uniformly mixed to get
Fireproof heat insulating filler, it is spare；
(4) one layer of fire prevention lotion is uniformly coated in door leaf inside casing surface and shop front cover inner surface, it is spare after solidification；
(5) bottom is laid with layer of glass grid cloth in the door leaf inside casing of step (4) processing, in fiberglass gridding
On cloth after uniformly distributed fireproof heat insulating filler, pre-molding, after being laid with layer of glass grid cloth on fireproof heat insulating filler,
The processed shop front cover board of step (4) is installed, hot pressing is to get the insulated fire door in feeding hot press；
The fire-retardant particle of polystyrene includes the raw material of following parts by weight meter in step (1)：Granules of polystyrene 52 part, nanometer
6 parts of 8 parts of zinc oxide, 14 parts of nano-aluminum hydroxide and expanded graphite and 2.2 parts of gamma-aminopropyl-triethoxy-silane.
The extrusion temperature of double screw extruder is 239 degrees Celsius in step (1), and screw speed is 96 revs/min.
Insulated fire filler in step (3) includes the raw material of following parts by weight meter：The fire-retardant particle of polystyrene prefoam
28 parts, 16 parts of polypropylene fibre, 12 parts of hollow glass micropearl, 15 parts of diatomite, 7 parts of borax, 18 parts of sepiolite fibre, foaming agent
1.7 parts and 15 parts of PVC paste resin.
Foaming agent is ammonium hydrogen carbonate and lauryl sodium sulfate according to mass ratio 5:1 mixing composition.
Fire prevention lotion in step (4) is acrylic emulsion, nano silicon dioxide, expanded vermiculite powder, ammonium polyphosphate, trimerization
Cyanamide and pentaerythrite are according to mass ratio 37:6:3.4:11:7:6 mixing compositions.
Pre-molding condition in step (5) is pressure 38MPa under vacuum condition, and temperature is 72 degrees Celsius, when precompressed
Between be 24 minutes.
Hot pressing condition in step (5) is：94 degrees Celsius, hot pressing pressure 18MPa of hot pressing temperature, hot pressing time 41 minutes.
Embodiment 4
A kind of preparation method of insulated fire door, includes the following steps：
(1) by granules of polystyrene, nano zine oxide, nano-aluminum hydroxide and expanded graphite and suitable γ-aminopropyl
After being uniformly mixed in triethoxysilane addition mixed at high speed, extruding pelletization is added twin-screw extrude, polyphenyl second is obtained
The fire-retardant particle of alkene；
(2) the fire-retardant particle of polystyrene is put into vapour pressure 0.4MPa, is preheating in 80 degrees Celsius of prefoaming machine and carries out in advance
Foaming cured by 8 hours, obtains the fire-retardant particle of polystyrene prefoam；
(3) by the fire-retardant particle of polystyrene prefoam, polypropylene fibre, hollow glass micropearl, diatom made from step (2)
Soil, borax, sepiolite fibre, foaming agent, PVC paste resin, be added high-speed stirred agent machine in be uniformly mixed to get
Fireproof heat insulating filler, it is spare；
(4) one layer of fire prevention lotion is uniformly coated in door leaf inside casing surface and shop front cover inner surface, it is spare after solidification；
(5) bottom is laid with layer of glass grid cloth in the door leaf inside casing of step (4) processing, in fiberglass gridding
On cloth after uniformly distributed fireproof heat insulating filler, pre-molding, after being laid with layer of glass grid cloth on fireproof heat insulating filler,
The processed shop front cover board of step (4) is installed, hot pressing is to get the insulated fire door in feeding hot press；
The fire-retardant particle of polystyrene includes the raw material of following parts by weight meter in step (1)：Granules of polystyrene 57 part, nanometer
5 parts of 8 parts of zinc oxide, 16 parts of nano-aluminum hydroxide and expanded graphite and 2.2 parts of gamma-aminopropyl-triethoxy-silane.
The extrusion temperature of double screw extruder is 239 degrees Celsius in step (1), and screw speed is 98 revs/min.
Insulated fire filler in step (3) includes the raw material of following parts by weight meter：The fire-retardant particle of polystyrene prefoam
28 parts, 15 parts of polypropylene fibre, 12 parts of hollow glass micropearl, 14 parts of diatomite, 7 parts of borax, 20 parts of sepiolite fibre, foaming agent
1.4 parts and 12 parts of PVC paste resin.
Foaming agent is ammonium hydrogen carbonate and lauryl sodium sulfate according to mass ratio 5:1 mixing composition.
Fire prevention lotion in step (4) is acrylic emulsion, nano silicon dioxide, expanded vermiculite powder, ammonium polyphosphate, trimerization
Cyanamide and pentaerythrite are according to mass ratio 36:8:2.8:10:8:7 mixing compositions.
Pre-molding condition in step (5) is pressure 38MPa under vacuum condition, and temperature is 72 degrees Celsius, when precompressed
Between be 24 minutes.
Hot pressing condition in step (5) is：93 degrees Celsius, hot pressing pressure 18MPa of hot pressing temperature, hot pressing time 39 minutes.
Comparative example 1：Magnesium chloride cement fire resistant doorsets
Comparative example 2：Cement board fire resistant doorsets
The fire resistant doorsets of insulated fire door and comparative example 1-3 made from embodiment 1-4 are tested for the property, it is as a result as follows：
It is tested for the property, tests by heat-insulating construction material is made in embodiment 1, embodiment 2, embodiment 3 and comparative example 1
The results are shown in Table 1：
In conclusion the present invention has the following advantages：
(1) the method for the present invention is added by the way that flame-retardant expanded particle is made in granules of polystyrene processing foaming in door core, is increased
The flame retardant effect of strong door core and the weight for mitigating door core, heat insulation and preservation effect is good, door frame surface coat one layer of fire prevention lotion and
Fiberglass gridding cloth, multistage fireprotection layer improve flameproof effect and the fire endurance time of fire resistant doorsets.
(2) pass through nano zine oxide, nano-aluminum hydroxide and expanded graphite modified polystyrene in preparation method of the present invention
Particle improves the anti-flammability and heatproof weatherability of granules of polystyrene, and insulation effect is good, after prefoaming machine prefoam, improves
The volume of granules of polystyrene, while the proportion of granules of polystyrene is reduced, the weight of fire resistant doorsets is reduced, while improving poly-
The impact resistance and adiabatic heat insulating effect of styrene pellets.
(3) added with polypropylene fibre, the cracking resistance of sepiolite fibre reinforcing material and anti-in fireproof heat insulating filler of the present invention
Impact property, while hollow glass micropearl, diatomite and sepiolite fibre can be with the insulation capacities of reinforcing material.Binder
Using PVC paste resin, performance is stablized, and stability is good, and has certain mechanical strength, easy to use.
(4) present invention coats one layer of fire prevention lotion in doorframe inner surface, and fire prevention lotion is acrylic emulsion, nanometer titanium dioxide
Silicon, expanded vermiculite powder, ammonium polyphosphate, melamine and pentaerythrite mixing form, under high temperature, expanded vermiculite powder, ammonium polyphosphate
Surface layer is formed with melamine and forms flame resistant protective layer, is enhanced the effect of fire resistant doorsets, is improved the fire endurance time of fire resistant doorsets.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, although with reference to aforementioned reality
Applying example, invention is explained in detail, for those skilled in the art, still can be to aforementioned each implementation
Technical solution recorded in example is modified or equivalent replacement of some of the technical features.All essences in the present invention
With within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention god.
Claims (10)
1. a kind of preparation method of insulated fire door, which is characterized in that include the following steps：
(1) by granules of polystyrene, nano zine oxide, nano-aluminum hydroxide and expanded graphite and suitable three second of γ-aminopropyl
After being uniformly mixed in oxysilane addition mixed at high speed, extruding pelletization is added twin-screw extrude, obtains polystyrene resistance
Fire particle；
(2) the fire-retardant particle of polystyrene is put into vapour pressure 0.2-0.4MPa, is preheating in 75-85 degrees Celsius of prefoaming machine and carries out
Prefoam cured by 8 hours, obtains the fire-retardant particle of polystyrene prefoam；
(3) by the fire-retardant particle of polystyrene prefoam made from step (2), polypropylene fibre, hollow glass micropearl, diatomite,
It is uniformly mixed to get fire prevention in borax, sepiolite fibre, foaming agent, PVC paste resin, addition high-speed stirred agent machine
Filler is kept the temperature, it is spare；
(4) one layer of fire prevention lotion is uniformly coated in door leaf inside casing surface and shop front cover inner surface, it is spare after solidification；
(5) bottom is laid with layer of glass grid cloth in the door leaf inside casing of step (4) processing, on fiberglass gridding cloth
After uniformly distributed fireproof heat insulating filler, pre-molding, after being laid with layer of glass grid cloth on fireproof heat insulating filler, installation
The upper processed shop front cover board of step (4), be sent into hot press in hot pressing to get the insulated fire door.
2. the preparation method of insulated fire door according to claim 1, which is characterized in that polyphenyl second in the step (1)
The fire-retardant particle of alkene includes the raw material of following parts by weight meter：50-60 parts of granules of polystyrene, 5-10 parts of nano zine oxide, nanometer hydrogen
12-18 parts of aluminium oxide and 1.5-2.8 parts of 3-7 parts of expanded graphite and gamma-aminopropyl-triethoxy-silane.
3. the preparation method of insulated fire door according to claim 1, which is characterized in that twin-screw in the step (1)
The extrusion temperature of extruder is 236-243 degrees Celsius, and screw speed is 90-100 revs/min.
4. the preparation method of insulated fire door according to claim 1, which is characterized in that the heat preservation in the step (3)
Fire-proof packing includes the raw material of following parts by weight meter：Polystyrene prefoam is particle 25-30 parts fire-retardant, polypropylene fibre 12-17
Part, 8-14 parts of hollow glass micropearl, 10-18 parts of diatomite, 4-9 parts of borax, 16-22 parts of sepiolite fibre, foaming agent 0.8-1.8
10-16 parts of part and PVC paste resin.
5. the preparation method of insulated fire door according to claim 4, which is characterized in that the heat preservation in the step (3)
Fire-proof packing includes the raw material of following parts by weight meter：It is 28 parts of the fire-retardant particle of polystyrene prefoam, 15 parts of polypropylene fibre, hollow
12 parts of glass microballoon, 14 parts of diatomite, 7 parts of borax, 20 parts of sepiolite fibre, 1.4 parts of foaming agent and PVC paste resin 12
Part.
6. the preparation method of insulated fire door according to claim 4, which is characterized in that the foaming agent is ammonium hydrogen carbonate
With lauryl sodium sulfate according to mass ratio 5:1 mixing composition.
7. the preparation method of insulated fire door according to claim 1, which is characterized in that the fire prevention in the step (4)
Lotion is acrylic emulsion, nano silicon dioxide, expanded vermiculite powder, ammonium polyphosphate, melamine and pentaerythrite according to quality
Compare 34-38:5-10:2-4:6-12:5-10:4-9 mixing compositions.
8. the preparation method of insulated fire door according to claim 7, which is characterized in that the fire prevention in the step (4)
Lotion is acrylic emulsion, nano silicon dioxide, expanded vermiculite powder, ammonium polyphosphate, melamine and pentaerythrite according to quality
Than 36:8:2.8:10:8:7 mixing compositions.
9. the preparation method of insulated fire door according to claim 1, which is characterized in that the precompressed in the step (5)
Condition of molding is pressure 35-40MPa under vacuum condition, and temperature is 68-74 degrees Celsius, and squeeze time is 20-25 minutes.
10. the preparation method of insulated fire door according to claim 1, which is characterized in that the hot pressing in the step (5)
Condition is：90-95 degrees Celsius of hot pressing temperature, hot pressing pressure 15-20MPa, hot pressing time 36-42 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810759282.1A CN108751790A (en) | 2018-07-11 | 2018-07-11 | A kind of preparation method of insulated fire door |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810759282.1A CN108751790A (en) | 2018-07-11 | 2018-07-11 | A kind of preparation method of insulated fire door |
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| CN108751790A true CN108751790A (en) | 2018-11-06 |
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| CN201810759282.1A Withdrawn CN108751790A (en) | 2018-07-11 | 2018-07-11 | A kind of preparation method of insulated fire door |
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| CN (1) | CN108751790A (en) |
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| CN110282938A (en) * | 2019-07-08 | 2019-09-27 | 安徽恒兴新型建材有限公司 | A kind of thermal insulation fire-proof building thermal insulation material |
| CN112343474A (en) * | 2020-11-04 | 2021-02-09 | 郭伟江 | Heat insulation door and manufacturing method thereof |
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