CN102453332B - Environment-friendly flame retardant asphalt and preparation method thereof - Google Patents
Environment-friendly flame retardant asphalt and preparation method thereof Download PDFInfo
- Publication number
- CN102453332B CN102453332B CN201010514010.9A CN201010514010A CN102453332B CN 102453332 B CN102453332 B CN 102453332B CN 201010514010 A CN201010514010 A CN 201010514010A CN 102453332 B CN102453332 B CN 102453332B
- Authority
- CN
- China
- Prior art keywords
- flame
- retardant
- hydrotalcite
- pitch
- nano material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000003063 flame retardant Substances 0.000 title claims abstract description 60
- 239000010426 asphalt Substances 0.000 title claims abstract description 40
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 title claims abstract description 33
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- GDVKFRBCXAPAQJ-UHFFFAOYSA-A dialuminum;hexamagnesium;carbonate;hexadecahydroxide Chemical compound [OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Al+3].[Al+3].[O-]C([O-])=O GDVKFRBCXAPAQJ-UHFFFAOYSA-A 0.000 claims abstract description 36
- 229910001701 hydrotalcite Inorganic materials 0.000 claims abstract description 34
- 229960001545 hydrotalcite Drugs 0.000 claims abstract description 34
- 239000002086 nanomaterial Substances 0.000 claims abstract description 25
- 238000003756 stirring Methods 0.000 claims abstract description 14
- 239000000203 mixture Substances 0.000 claims abstract description 8
- 239000011295 pitch Substances 0.000 claims description 35
- 239000007822 coupling agent Substances 0.000 claims description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- 230000004048 modification Effects 0.000 claims description 15
- 238000012986 modification Methods 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 12
- 229920000642 polymer Polymers 0.000 claims description 12
- 239000000454 talc Substances 0.000 claims description 9
- 229910052623 talc Inorganic materials 0.000 claims description 9
- 235000012222 talc Nutrition 0.000 claims description 9
- BIKXLKXABVUSMH-UHFFFAOYSA-N trizinc;diborate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]B([O-])[O-].[O-]B([O-])[O-] BIKXLKXABVUSMH-UHFFFAOYSA-N 0.000 claims description 9
- XFZRQAZGUOTJCS-UHFFFAOYSA-N phosphoric acid;1,3,5-triazine-2,4,6-triamine Chemical compound OP(O)(O)=O.NC1=NC(N)=NC(N)=N1 XFZRQAZGUOTJCS-UHFFFAOYSA-N 0.000 claims description 7
- ADCOVFLJGNWWNZ-UHFFFAOYSA-N antimony trioxide Chemical compound O=[Sb]O[Sb]=O ADCOVFLJGNWWNZ-UHFFFAOYSA-N 0.000 claims description 6
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims description 3
- 229910001051 Magnalium Inorganic materials 0.000 claims description 3
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 3
- 235000021355 Stearic acid Nutrition 0.000 claims description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical group [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 239000008367 deionised water Substances 0.000 claims description 3
- 229910021641 deionized water Inorganic materials 0.000 claims description 3
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 3
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 3
- 229910052698 phosphorus Inorganic materials 0.000 claims description 3
- 239000011574 phosphorus Substances 0.000 claims description 3
- 239000008117 stearic acid Substances 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 2
- XZMCDFZZKTWFGF-UHFFFAOYSA-N Cyanamide Chemical compound NC#N XZMCDFZZKTWFGF-UHFFFAOYSA-N 0.000 claims description 2
- 229910052796 boron Inorganic materials 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 229910052757 nitrogen Inorganic materials 0.000 claims description 2
- 239000011301 petroleum pitch Substances 0.000 claims description 2
- 230000008569 process Effects 0.000 claims description 2
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 2
- DXZMANYCMVCPIM-UHFFFAOYSA-L zinc;diethylphosphinate Chemical compound [Zn+2].CCP([O-])(=O)CC.CCP([O-])(=O)CC DXZMANYCMVCPIM-UHFFFAOYSA-L 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims 1
- 239000002699 waste material Substances 0.000 claims 1
- 239000000654 additive Substances 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 10
- 238000002485 combustion reaction Methods 0.000 description 6
- 239000011777 magnesium Substances 0.000 description 6
- 239000000779 smoke Substances 0.000 description 6
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 5
- 229910052749 magnesium Inorganic materials 0.000 description 5
- 230000035515 penetration Effects 0.000 description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000004567 concrete Substances 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 230000002195 synergetic effect Effects 0.000 description 3
- 239000002341 toxic gas Substances 0.000 description 3
- 230000000996 additive effect Effects 0.000 description 2
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 2
- 229910021502 aluminium hydroxide Inorganic materials 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000000979 retarding effect Effects 0.000 description 2
- BZQKBFHEWDPQHD-UHFFFAOYSA-N 1,2,3,4,5-pentabromo-6-[2-(2,3,4,5,6-pentabromophenyl)ethyl]benzene Chemical compound BrC1=C(Br)C(Br)=C(Br)C(Br)=C1CCC1=C(Br)C(Br)=C(Br)C(Br)=C1Br BZQKBFHEWDPQHD-UHFFFAOYSA-N 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- WYRGOSDNPFGZFG-UHFFFAOYSA-K [bis(2-ethylhexoxy)-oxidophosphaniumyl] dihydrogen phosphate [bis(2-ethylhexoxy)-oxidophosphaniumyl] hydrogen phosphate [bis(2-ethylhexoxy)-oxidophosphaniumyl] phosphate propan-2-olate titanium(4+) Chemical compound [Ti+4].CC(C)[O-].CCCCC(CC)CO[P+]([O-])(OCC(CC)CCCC)OP(O)(O)=O.CCCCC(CC)CO[P+]([O-])(OCC(CC)CCCC)OP(O)([O-])=O.CCCCC(CC)CO[P+]([O-])(OCC(CC)CCCC)OP([O-])([O-])=O WYRGOSDNPFGZFG-UHFFFAOYSA-K 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010000 carbonizing Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002366 halogen compounds Chemical class 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 1
- 239000000347 magnesium hydroxide Substances 0.000 description 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- XZTOTRSSGPPNTB-UHFFFAOYSA-N phosphono dihydrogen phosphate;1,3,5-triazine-2,4,6-triamine Chemical group NC1=NC(N)=NC(N)=N1.OP(O)(=O)OP(O)(O)=O XZTOTRSSGPPNTB-UHFFFAOYSA-N 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 239000004034 viscosity adjusting agent Substances 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses environment-friendly flame retardant asphalt and a preparation method thereof. The flame retardant asphalt comprises, by mass, 100 parts of base asphalt, 2 to 15 parts of a fire retardant and 0.5 to 5 parts of a surface modified nano-material hydrotalcite. The preparation method comprises the steps of adding the fire retardant and the nano-material hydrotalcite into the base asphalt at a temperature of 120 to 180 DEG C and carrying out stirring for uniform mixing. According to the invention, the composition of asphalt has good flame retardant performance; additives used in the invention are environment-friendly, cost little and have good stability; a preparation process is simple.
Description
Technical field
The present invention relates to a kind of flame retarding asphalt composition and preparation method thereof, specifically a kind of environmental-protection flame-retardant bituminous composition and preparation method thereof.
Background technology
Along with the development of China's expressway construction, the quantity of vcehicular tunnel is also in continuous increase.Conventional rigidity cement concrete pavement in tunnel, is also flattened, flexible bituminous concrete pavement wear-resisting, low noise replaces gradually.In the use procedure of tunnel sheet pavement, the fire safety problem of bituminous concrete pavement also more and more causes people's attention.Because pitch is inflammable material, add in tunnel ventilation condition poor, cause that bituminous pavement catches fire if there is traffic accident, because of intensity of a fire development swift and violent, personnel have little time to evacuate and cause larger loss of life and personal injury, will inevitably cause unnecessary loss to the country and people's lives and properties.In addition, when pitch catches fire, produce a large amount of black smokes, in tunnel, be difficult for diffusion, can hinder escape personnel's sight line and easily make people suffocate, both personnel were worked the mischief, again environment is caused to severe contamination.So, first must solve pitch and meet fiery combustion problem, the amount of being fuming and toxic gas content when its less important reduction pitch burning.Therefore, using the flame-retardant pitch with flame retardant properties, smoke suppressing should be the developing direction of tunnel road surface pitch from now on.
Solve pitch and meet fiery combustion problem, the simplest method is to add fire retardant in pitch.The amount of being fuming and the more effective way of toxic gas content while reducing pitch burning add smoke suppressant exactly.And along with people more and more pay attention to environmental problem, also more and more stricter to the requirement of flame retardant products, though halogenated flame retardant can provide higher oxygen index, owing to producing a large amount of smog and poisonous gas, halogen-free flameproof becomes development trend from now on gradually.In CN200610062960.6, use decabromodiphenyl ethane, zinc borate and antimonous oxide as fire retardant, belong to halogen flame, do not meet the requirement of environmental protection, the toxic gas of emitting also jeopardizes personnel safety.Halogenless fire retarded polymer modified asphalt in CN200610019381.3, is by adding phosphorus system and nitrogenated flame retardant to play fire-retardant effect, but wherein there is no smoke suppressant, does not solve the problem of being fuming of pitch burning.CN200610082139.0 has introduced a kind of halogen-free roadfire-resistant asphalt, wherein fire retardant is melamine pyrophosphate salt, zinc borate and magnesium hydroxide, and for playing better smoke suppressing effect, this invention adds aluminium hydroxide in the time of mix mineral aggregate, increase algorithm, be unfavorable for the carrying out of construction.And due to the decomposition temperature of aluminium hydroxide lower (140-150 ℃), also therefore limit its application.
Summary of the invention
For the deficiencies in the prior art, the invention provides a kind of environmental-protection flame-retardant pitch and preparation method thereof, asphalt flame-retardant of the present invention, smoke suppressing effect are good, and additive environmental protection, cost are low, Heat stability is good, and preparation is simple.
Environmental-protection flame-retardant pitch of the present invention, comprises by mass parts:
(1) basic asphalt: 100 parts
(2) fire retardant: 2-15 part
(3) surface-modified nano material water talcum: 0.5-5 part
Its medium pitch is determined required character according to the occasion of application, can be common heavy-duty road petroleum pitch, as: AH-70 (No. 70, Esso, below analogize), AH-90, AH-110, also can be polymer modified asphalt, as SBS modifying asphalt, SBR modifying asphalt, or the other types polymer modified asphalt such as shoddy.The add-on of polymkeric substance is specifically definite according to the kind of the performance requriements of modifying asphalt and polymkeric substance, and generally by mass, polymkeric substance accounts for 2%～10% of polymer modified asphalt.Polymer modified asphalt penetration degree is greater than 45 1/10mm.
Wherein fire retardant is the halogen-free flame retardantss such as phosphorus system, nitrogen system, boron system, can be one or more the mixture in above-mentioned.Specifically as one or more in zinc borate, antimonous oxide, trimeric cyanamide, melamine phosphoric acid salt, red phosphorus etc.
Wherein surface-modified nano material water talcum is as synergistic fire retardant, and nano material hydrotalcite is laminar nano hydrotalcite, and its granularity is generally 15～70nm, is preferably magnalium carbonate hydrotalcite, as is specially molecular formula for [Mg
1-xal
x(OH)
2]
x+[(CO
3)
x/2]
x-mH
2o, x=0.2～0.33,0.1≤m≤0.8.
Wherein surface-modified nano material water talcum is the nano material hydrotalcite of coupling agent surface modification, coupling agent can be titanate coupling agent, stearic acid, stearic acid-rare-earth coupling agent or silane coupling agent etc., its effect is the surfactivity that improves magnesium aluminum-hydrotalcite, thereby improves the consistency between hydrotalcite and pitch.Coupling agent consumption is 1%～15% of nano material hydrotalcite weight, is preferably 4%～10%.To be nano material hydrotalcite make after reacting at 50～90 ℃ through adding suitable quantity of water with coupling agent surface-modified nano material water talcum.
In environmental-protection flame-retardant pitch of the present invention, can also add other additive according to the requirement of application, as viscosity modifier, penetration degree properties-correcting agent, antiaging agent etc.
The preparation method of environmental-protection flame-retardant pitch of the present invention is as follows:
(1) nano material hydrotalcite, appropriate amount of deionized water and coupling agent are added to reactor successively, 50～90 ℃ of constant temperature, continue stirring reaction 0.3～3h, filter, and washing, dry, make surface modification hydrotalcite.
(2) fire retardant, surface-modified nano material water talcum are joined in the pitch of 120-180 ℃, be uniformly mixed 0.5～3h, obtain flame-retardant pitch.
While needing polymer modified asphalt, first prepare polymer modified asphalt by this area ordinary method, then with preparing as stated above fire retarded polymer modified asphalt.
The present invention is directed to the deficiencies in the prior art, a kind of flame retarding asphalt composition and preparation method thereof is provided, it is fire retardant that this flame-retardant pitch is selected non-halogen compound, select surface modification magnesium aluminum-hydrotalcite as synergistic fire retardant, utilize the character of special effects and the hydrotalcite of its nano material, improved the flame retardant properties of pitch.In addition, in the time that flame retardant effect is close, can significantly reduce fire retardant add-on.The fire retardant properties-correcting agent cost that bituminous composition of the present invention uses is low, Heat stability is good, and fire-retardant good with smoke suppressing effect, preparation technology is simple, easy to operate.
Nano material hydrotalcite cooperative flame retardant mechanism: the existing low-temperature zone of decomposition temperature of magnesium aluminum-hydrotalcite has again high temperature section, has widened resistance combustion temperature scope.In thermal endothermic decomposition process, slough planar water and middle water, and on laminate, hydroxyl dehydration is overflowed with water vapour form, and decompose the H discharging
2o and CO
2, these have all absorbed a large amount of combustions heat and have effectively diluted O
2with the concentration of inflammable gas, reduce composite material surface temperature, make it difficult combustion or slow down combustion processes, stop it further to decompose, play fire-retardant effect.In addition; the alkaline porous composite oxide that magnesium aluminum-hydrotalcite obtains after decomposing is combined with the carbonizing production of asphalt surface and is formed protective membrane; effectively delay the small molecules of polymer modified asphalt internal heat degraded generation to the supply of surface transport, heat transmission capacity and extraneous oxygen; and its specific surface area is larger; especially sour gas of adsorbable obnoxious flavour, has fire-retardant and but cigarette double effects.Therefore, modification magnesium aluminum-hydrotalcite can produce good synergistic effect with conventional flame retardant, and flame retardant property of asphaltum is improved.
Embodiment
Below by embodiment, the present invention is further described, but therefore do not limit the present invention.
Embodiment 1
Step 1: magnalium carbonate hydrotalcite (granularity is 20～40nm), appropriate amount of deionized water and the titanate coupling agent NDZ-201 that accounts for hydrotalcite weight 5% are added to reactor successively, 80 ℃ of waters bath with thermostatic control, continue stirring reaction 1h, filter, washing, dry, make surface modification hydrotalcite.
Step 2: 3 parts of melamine phosphoric acid salt, 0.6 part of surface modification hydrotalcite are joined in 100 parts of 160 ℃ of 4%SBS modifying asphalts, and common stirring (450rpm/min) is uniformly mixed 1h, obtains Flame-retarded SBS Modified Asphalt.
Embodiment 2
Prepare surperficial modified hydrotalcite method with step 1 in embodiment 1, coupling agent is stearic acid, and consumption is 8% of hydrotalcite weight.
6 parts of melamine phosphoric acid salt, 1.2 parts of surface modification hydrotalcites are joined in 100 parts of 160 ℃ of SBS modifying asphalts, and common stirring (450rpm/min) is uniformly mixed 1h, obtains Flame-retarded SBS Modified Asphalt.
Embodiment 3
Prepare surperficial modified hydrotalcite method with step 1 in embodiment 1, coupling agent is silane coupling agent, and consumption is 10% of hydrotalcite weight.
9 parts of melamine phosphoric acid salt, 1.8 parts of surface modification hydrotalcites are joined in 100 parts of 160 ℃ of SBS modifying asphalts, and common stirring (450rpm/min) is uniformly mixed 1h, obtains Flame-retarded SBS Modified Asphalt.
Embodiment 4
Prepare surperficial modified hydrotalcite method with step 1 in embodiment 1.
12 parts of melamine phosphoric acid salt, 2.4 parts of surface modification hydrotalcites are joined in 100 parts of 160 ℃ of SBS modifying asphalts, and common stirring (450rpm/min) is uniformly mixed 1h, obtains Flame-retarded SBS Modified Asphalt.
Embodiment 5
Prepare surperficial modified hydrotalcite method with step 1 in embodiment 1.
3 parts of zinc borates, 0.6 part of surface modification hydrotalcite are joined in 100 parts of 160 ℃ of SBS modifying asphalts, and common stirring (450rpm/min) is uniformly mixed 1h, obtains Flame-retarded SBS Modified Asphalt.
Embodiment 6
Prepare surperficial modified hydrotalcite method with step 1 in embodiment 1.
6 parts of zinc borates, 1.2 parts of surface modification hydrotalcites are joined in 100 parts of 160 ℃ of SBS modifying asphalts, and common stirring (450rpm/min) is uniformly mixed 1h, obtains Flame-retarded SBS Modified Asphalt.
Embodiment 7
Prepare surperficial modified hydrotalcite method with step 1 in embodiment 1.
9 parts of zinc borates, 1.8 parts of surface modification hydrotalcites are joined in 100 parts of 160 ℃ of AH-90 (penetration degree 871/10mm, 48.5 ℃ of softening temperatures), and common stirring (450rpm/min) is uniformly mixed 1h, obtains fire-retardant AH-70 pitch.
Embodiment 8
Prepare surperficial modified hydrotalcite method with step 1 in embodiment 1.
12 parts of zinc borates, 2.4 parts of surface modification hydrotalcites are joined in 100 parts of 140 ℃ of AH-110 (penetration degree 106 1/10mm, 44 ℃ of softening temperatures), and common stirring (450rpm/min) is uniformly mixed 1h, obtains fire-retardant AH-90 pitch.
Comparative example 1
12 parts of melamine phosphoric acid salt are joined in 100 parts of 160 ℃ of SBS modifying asphalts, and common stirring (450rpm/min) is uniformly mixed 1h, obtains Flame-retarded SBS Modified Asphalt.
Comparative example 2
12 parts of zinc borates are joined in 100 parts of 160 ℃ of AH-110 (penetration degree 1061/10mm, 44 ℃ of softening temperatures) pitch, and common stirring (450rpm/min) is uniformly mixed 1h, obtains fire-retardant AH-90 pitch.
Table 1 Flame-retarded SBS Modified Asphalt performance index
Table 2 flame-retardant pitch performance index
Can find out from upper table data, along with the increase of nano material hydrotalcite add-on, the variation of softening temperature is little, and ductility declines to some extent, and limiting oxygen index(LOI) is significantly improved.In addition, in the time that flame retardant effect is close, can significantly reduce fire retardant add-on, nano material hydrotalcite and other fire retardant have played good synergy, have good consistency between fire retardant and basic asphalt.
Claims (7)
1.Yi Zhong uses on road environmental-protection flame-retardant pitch, it is characterized in that comprising by mass parts:
(1) basic asphalt: 100 parts;
(2) fire retardant: 2-15 part, fire retardant is that phosphorus system, nitrogen system or boron are halogen-free flame retardants, or one or more mixture in above-mentioned;
(3) surface-modified nano material water talcum: 0.5-2.4 part, wherein nano material hydrotalcite is magnalium carbonate hydrotalcite, is specially molecular formula for [Mg
1-Xal
x(OH)
2]
x+[(CO
3)
x/2]
x-mH
2o, X=0.2～0.33,0.1≤m≤0.8, its granularity is 15～70nm.
2. according to flame-retardant pitch claimed in claim 1, it is characterized in that: basic asphalt is common heavy-duty road petroleum pitch, or be polymer modified asphalt, or be waste rubber powder modified asphalt.
3. according to flame-retardant pitch claimed in claim 2, it is characterized in that: in polymer modified asphalt, by mass, polymkeric substance accounts for 2%～10% of polymer modified asphalt.
4. according to flame-retardant pitch claimed in claim 1, it is characterized in that: fire retardant is one or more in zinc borate, antimonous oxide, trimeric cyanamide, melamine phosphoric acid salt, red phosphorus.
5. according to flame-retardant pitch claimed in claim 1, it is characterized in that: surface-modified nano material water talcum is the nano material hydrotalcite of coupling agent surface modification, and coupling agent is titanate coupling agent, stearic acid, stearic acid-rare-earth coupling agent or silane coupling agent.
6. according to flame-retardant pitch claimed in claim 5, it is characterized in that: coupling agent consumption is 1%～15% of nano material hydrotalcite weight, to be nano material hydrotalcite make after reacting at 50～90 ℃ through adding suitable quantity of water with coupling agent surface-modified nano material water talcum.
7. a preparation method for environmental-protection flame-retardant pitch described in claim 1, process is as follows:
(1) nano material hydrotalcite, appropriate amount of deionized water and coupling agent are added to reactor successively, 50～90 ℃ of constant temperature, continue stirring reaction 0.3～3h, filter, and washing, dry, make surface modification hydrotalcite;
(2) fire retardant, surface-modified nano material water talcum are joined in the pitch of 120-180 ℃, be uniformly mixed 0.5～3h, obtain flame-retardant pitch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010514010.9A CN102453332B (en) | 2010-10-15 | 2010-10-15 | Environment-friendly flame retardant asphalt and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010514010.9A CN102453332B (en) | 2010-10-15 | 2010-10-15 | Environment-friendly flame retardant asphalt and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102453332A CN102453332A (en) | 2012-05-16 |
| CN102453332B true CN102453332B (en) | 2014-05-21 |
Family
ID=46037046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010514010.9A Active CN102453332B (en) | 2010-10-15 | 2010-10-15 | Environment-friendly flame retardant asphalt and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102453332B (en) |
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102660048A (en) * | 2012-05-28 | 2012-09-12 | 河南现代交通道路科技有限责任公司 | Efficient flame retardant and flame-retardant smoke-suppressant asphalt |
| CN103265817A (en) * | 2013-06-03 | 2013-08-28 | 东南大学 | Method for preparing flame-retardant rubber modified emulsified asphalt |
| CN103289246A (en) * | 2013-06-21 | 2013-09-11 | 苏州市景荣科技有限公司 | Fire retardation PVC foaming sole material |
| CN103666259B (en) * | 2013-09-12 | 2016-04-06 | 宁波镭纳涂层技术有限公司 | Flame-retardant pitch base mixing high molecular water-proof paint and preparation method thereof |
| CN104387783B (en) * | 2014-12-13 | 2016-11-30 | 韩清辉 | A kind of vcehicular tunnel flame-retardant pitch and preparation method thereof |
| CN105084797B (en) * | 2015-04-23 | 2017-05-10 | 广西华锑科技有限公司 | Antimony-based compound flame retardant for silicate fiberboard and preparation method thereof |
| CN105384387B (en) * | 2015-12-28 | 2017-08-18 | 吉林省交通规划设计院 | A kind of composite flame-retardant agent and its preparation method and application |
| CN107304300B (en) * | 2016-04-21 | 2019-07-12 | 中国石油化工股份有限公司 | A kind of organic montmorillonite flame-retardant pitch and preparation method thereof |
| CN107795079A (en) * | 2016-08-30 | 2018-03-13 | 菊水化工（上海）有限公司 | Surface decoration material |
| CN107163596A (en) * | 2017-06-26 | 2017-09-15 | 长安大学 | A kind of non-halogen flame-proof smoke-restraining pitch and preparation method thereof |
| CN108795286A (en) * | 2018-06-28 | 2018-11-13 | 芜湖市棠华建材科技有限公司 | Quick-dry type hammer paint |
| CN108821647A (en) * | 2018-06-28 | 2018-11-16 | 芜湖市棠华建材科技有限公司 | Fireproof seal daub and preparation method thereof |
| CN108976962A (en) * | 2018-06-28 | 2018-12-11 | 芜湖市棠华建材科技有限公司 | High-temperature-resistant flame-retardant anti-rust paint |
| CN108795284A (en) * | 2018-06-28 | 2018-11-13 | 芜湖市棠华建材科技有限公司 | Wheel hub water paint |
| CN109187411A (en) * | 2018-08-23 | 2019-01-11 | 南京林业大学 | A kind of evaluation method of nano magnalium hydrotalcite to asphalt flame retardant effect |
| CN112778775B (en) * | 2020-12-30 | 2023-06-23 | 北京化工大学 | A kind of anti-ultraviolet aging hydrotalcite asphalt master batch and preparation method thereof |
| CN112876871B (en) * | 2021-01-25 | 2022-08-16 | 南京朝科路桥工程技术有限公司 | Environment-friendly hot-mix asphalt mixture and preparation method thereof |
| CN114836048A (en) * | 2021-12-22 | 2022-08-02 | 重庆交通大学 | A kind of halloysite nanotube synergistic flame retardant modified asphalt and preparation method thereof |
| CN114656825A (en) * | 2022-03-09 | 2022-06-24 | 青岛爱尔家佳新材料股份有限公司 | Flame-retardant polyurea for new energy automobile and preparation method thereof |
| CN115139624A (en) * | 2022-05-30 | 2022-10-04 | 广州至城建筑材料科技有限公司 | High-temperature-resistant asphalt waterproof coiled material and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1287967A (en) * | 1999-09-14 | 2001-03-21 | 北京化工大学 | Surface preparation of layered dihydroxy composite metal oxide powder |
| CN101624474A (en) * | 2009-08-04 | 2010-01-13 | 重庆中交科技股份有限公司 | Halogen-free environmental protection flame-retardant asphalt for tunnel road surface |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60197762A (en) * | 1984-03-21 | 1985-10-07 | Hitachi Cable Ltd | Flame retardant asphalt composition |
-
2010
- 2010-10-15 CN CN201010514010.9A patent/CN102453332B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1287967A (en) * | 1999-09-14 | 2001-03-21 | 北京化工大学 | Surface preparation of layered dihydroxy composite metal oxide powder |
| CN101624474A (en) * | 2009-08-04 | 2010-01-13 | 重庆中交科技股份有限公司 | Halogen-free environmental protection flame-retardant asphalt for tunnel road surface |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102453332A (en) | 2012-05-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102453332B (en) | Environment-friendly flame retardant asphalt and preparation method thereof | |
| CN102746533B (en) | Heavy calcium carbonate composite filler and its preparation method and use | |
| CN102173631B (en) | Flame retardant for tunnel asphalt pavement | |
| CN100535056C (en) | Flame-proof filling material special for tunnel sheet pavement | |
| CN102392674B (en) | A kind of composite latex inhibitor for preventing and controlling coal spontaneous combustion and preparation method thereof | |
| Chen et al. | Silicon oxide encapsulated ZIF-8 loaded on reduced graphene oxide to improve flame retardancy of waterborne epoxy coatings | |
| CN102464891B (en) | Road flame-retardant asphalt and preparation method | |
| CN103044937A (en) | Flame-retardant smoke-suspension asphalt for environment-friendly road and preparation method of asphalt | |
| CN101565625A (en) | Silicone rubber fireproof sealing material and preparation method thereof | |
| CN102634351B (en) | Aqueous halogen-free flexible fireproof plugging material | |
| WO2008037168A1 (en) | A flame retardant modifier for asphalt | |
| CN103013147A (en) | Flame-retardant modified asphalt and preparation method thereof | |
| CN109438992A (en) | A kind of flame-proof organosilicon foamed material and preparation method thereof | |
| CN101831192A (en) | Flame-retardant lignin fiber for roads and preparation method thereof | |
| CN100419026C (en) | A flame retardant modified asphalt mixture | |
| CN101724277B (en) | Flame retarding asphalt composition for roads and preparation method thereof | |
| CN105585280B (en) | A kind of compositional flame-retardant miberal powder and antiflaming asphalt mixture for tunnel sheet pavement | |
| CN102492172A (en) | Preparation method and application of nanometer organic-layered composite metal hydroxide | |
| CN100424134C (en) | Flame-retared modified asphalt mixed stock | |
| CN102311648A (en) | Environmental-protection asphalt antiflaming smoke suppression modifier | |
| CN101077932B (en) | Flame-proof asphalt for road and preparation method thereof | |
| CN103146208A (en) | Expanded vermiculite/aluminium hydroxide synergetic flame retardant asphalt and preparation method thereof | |
| CN103740120B (en) | A kind of bituminous pavement environmental protection warm mix flame-retardant composite modifier | |
| CN107722652A (en) | A kind of pitch smoke inhibition modifying agent, suppression cigarette modified pitch and preparation method thereof | |
| CN103253884A (en) | Composite fire retardant for bituminous mixture |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |