CN107722652A - A kind of pitch smoke inhibition modifying agent, suppression cigarette modified pitch and preparation method thereof - Google Patents
A kind of pitch smoke inhibition modifying agent, suppression cigarette modified pitch and preparation method thereof Download PDFInfo
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- CN107722652A CN107722652A CN201711005548.5A CN201711005548A CN107722652A CN 107722652 A CN107722652 A CN 107722652A CN 201711005548 A CN201711005548 A CN 201711005548A CN 107722652 A CN107722652 A CN 107722652A
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- Prior art keywords
- pitch
- smoke
- modifying agent
- suppression cigarette
- modified pitch
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- 239000000779 smoke Substances 0.000 title claims abstract description 70
- 235000019504 cigarettes Nutrition 0.000 title claims abstract description 30
- 230000001629 suppression Effects 0.000 title claims abstract description 27
- 230000005764 inhibitory process Effects 0.000 title claims abstract description 21
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 33
- 239000007822 coupling agent Substances 0.000 claims abstract description 17
- 229910044991 metal oxide Inorganic materials 0.000 claims abstract description 11
- 150000004706 metal oxides Chemical class 0.000 claims abstract description 11
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 9
- 239000011159 matrix material Substances 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 13
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical group [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims description 9
- 239000000347 magnesium hydroxide Substances 0.000 claims description 9
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 9
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 8
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical group [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 7
- 229910000077 silane Inorganic materials 0.000 claims description 7
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims description 6
- 229910021502 aluminium hydroxide Inorganic materials 0.000 claims description 6
- 239000000395 magnesium oxide Substances 0.000 claims description 4
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical group O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 238000010008 shearing Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 16
- 239000010426 asphalt Substances 0.000 abstract description 14
- 230000008901 benefit Effects 0.000 abstract description 5
- 238000003912 environmental pollution Methods 0.000 abstract description 3
- 231100001261 hazardous Toxicity 0.000 abstract description 3
- 239000011295 pitch Substances 0.000 description 72
- 239000003063 flame retardant Substances 0.000 description 12
- 238000002485 combustion reaction Methods 0.000 description 11
- 239000000463 material Substances 0.000 description 7
- 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 description 6
- -1 timber Substances 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 5
- 239000003112 inhibitor Substances 0.000 description 5
- 239000005060 rubber Substances 0.000 description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 4
- 239000004568 cement Substances 0.000 description 4
- 239000003546 flue gas Substances 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 238000011049 filling Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000011707 mineral Substances 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000004566 building material Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000010779 crude oil Substances 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 239000010438 granite Substances 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 230000002045 lasting effect Effects 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 239000011387 rubberized asphalt concrete Substances 0.000 description 2
- 229920006305 unsaturated polyester Polymers 0.000 description 2
- 208000005623 Carcinogenesis Diseases 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 206010019233 Headaches Diseases 0.000 description 1
- 241001274660 Modulus Species 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229910018557 Si O Inorganic materials 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229910002808 Si–O–Si Inorganic materials 0.000 description 1
- 210000001015 abdomen Anatomy 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 125000003545 alkoxy group Chemical group 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- 239000011384 asphalt concrete Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 150000001639 boron compounds Chemical class 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 230000036952 cancer formation Effects 0.000 description 1
- 231100000504 carcinogenesis Toxicity 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 229920001688 coating polymer Polymers 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 125000004093 cyano group Chemical group *C#N 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 231100000869 headache Toxicity 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 230000004630 mental health Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 210000002345 respiratory system Anatomy 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Inorganic materials [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L95/00—Compositions of bituminous materials, e.g. asphalt, tar, pitch
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/222—Magnesia, i.e. magnesium oxide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/2224—Magnesium hydroxide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a kind of pitch smoke inhibition modifying agent, suppression cigarette modified pitch and preparation method thereof, the pitch smoke inhibition modifying agent can include smoke suppressant, coupling agent, smoke suppressant auxiliary agent and metal oxide.Pitch smoke inhibition modifying agent provided by the invention, smoke suppressing effect is good, high-efficiency environment friendly, and maximum smoke density is about 2.88kg/m3, and smoke density grade is relatively low.It is added to after pitch, the property of pitch is not influenceed, and the compatibility between modifying agent and pitch is fine, and the addition of coupling agent makes asphalt system more stable.With preferable high-temperature stability, it will not be decomposed within 250 DEG C, this can ensure that smoke suppressant will not occur rotten and lose smoke suppressing effect after being added among pitch.With preferable smoke suppressing effect, there is the advantages of environmentally friendly, efficient, free from environmental pollution, to operating personnel's non-hazardous.
Description
Technical field
The present invention relates to pitch suppression cigarette preparation technique field, is modified more particularly to a kind of environmental-protecting and high-efficient type pitch suppression cigarette
Agent, suppression cigarette modified pitch and preparation method thereof.
Background technology
Asphalt concrete pavement because of its good performance characteristics, be widely used in high-grade highway, bridge floor and
Among tunnel pavement.At present, China is in road construction booming period, will use substantial amounts of hot asphalt every year
Compound.During production during asphalt, pitch need to be heated to 160 DEG C or so from normal temperature, mineral aggregate is heated to 160 from normal temperature~
180 DEG C, then pitch and mineral aggregate are mixed and stirred again, the asphalt temperature after mixing and stirring is 150~180 DEG C, to ensure
Normally pave and roll, and pitch is heated to so high temperature, pitch can give off a certain amount of glance coal.
These bitumen flue gas, in addition to polluting atmospheric environment, the health of operating personnel is injured there is also great,
Pitch and its flue gas, there is certain excitant to mucocutaneous, there is light toxic action and carcinogenesis.To respiratory system, deposit
In strong impulse, easily trigger the symptoms such as uncomfortable in chest, abdomen is sick, palpitaition, headache, (such as tunnel especially in the environment of relative closure
Road) construction when, the smog of asphalt high temperature and discharge adds very big difficulty to constructing operation, or even threatens
The physical and mental health and life security of workmen.
The content of the invention
The invention provides a kind of pitch smoke inhibition modifying agent, suppression cigarette modified pitch and preparation method thereof.Pitch suppression cigarette changes
Property agent be a kind of efficient pitch smoke suppressant, this kind of smoke suppressant can effectively reduce the smoke yields during pitch use,
And with environmental protection, Combination is good, adds the advantages of facilitating.Suppression cigarette modified pitch is made using this kind of smoke inhibition modifying agent, can
Meet the occupational health requirement that pitch actual application is worked as.
The invention provides following scheme：
A kind of pitch smoke inhibition modifying agent, to account in terms of the mass percent of matrix pitch usage amount, including following component：
Preferably：The smoke suppressant is magnesium hydroxide or aluminium hydroxide.
Preferably：The coupling agent is silane coupler.
Preferably：The smoke suppressant auxiliary agent is certain class new type resin.
Preferably：The metal oxide is aluminum oxide or magnesia.
A kind of suppression cigarette modified pitch for including the pitch smoke inhibition modifying agent.
A kind of preparation method of the suppression cigarette modified pitch, methods described include：
Take the matrix pitch of certain mass；
Added into the matrix pitch its mass percent be 1%~10% smoke suppressant, 1%~5% coupling agent,
1%~10% smoke suppressant auxiliary agent, 1%~5% metal oxide obtain mixture；
By the mixture at a temperature of 130~160 DEG C, with 4000~5000r/min speed high speed shear, shearing
45~55 minutes, produce the suppression cigarette modified pitch.
Preferably：By the mixture at a temperature of 150 DEG C, with 4500r/min speed high speed shear, 50 points are sheared
Clock, produce the suppression cigarette modified pitch.
According to specific embodiment provided by the invention, the invention discloses following technique effect：
By the invention it is possible to a kind of pitch smoke inhibition modifying agent, suppression cigarette modified pitch and preparation method thereof are realized, in one kind
Under implementation, the pitch smoke inhibition modifying agent can include smoke suppressant, coupling agent, smoke suppressant auxiliary agent and metal oxide.This
The pitch smoke inhibition modifying agent provided is invented, smoke suppressing effect is good, high-efficiency environment friendly, and maximum smoke density is about 2.88kg/m3, smoke density etc.
Level is relatively low.It is added to after pitch, the property of pitch is not influenceed, and the compatibility between modifying agent and pitch is fine,
The addition of coupling agent makes asphalt system more stable.With preferable high-temperature stability, will not be decomposed within 250 DEG C,
This can ensure that smoke suppressant will not occur rotten and lose smoke suppressing effect after being added among pitch.With preferable suppression cigarette effect
Fruit, there is the advantages of environmentally friendly, efficient, free from environmental pollution, to operating personnel's non-hazardous.
Certainly, any product for implementing the present invention it is not absolutely required to reach all the above advantage simultaneously.
Embodiment
The technical scheme in the embodiment of the present invention is clearly and completely described below, it is clear that described embodiment
Only part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, the common skill in this area
The every other embodiment that art personnel are obtained, belongs to the scope of protection of the invention.
The invention provides a kind of pitch smoke inhibition modifying agent, to account in terms of the mass percent of matrix pitch usage amount, including
Following component：
The present invention is not particularly limited to the source of all raw materials, is commercially available.
Pitch smoke inhibition modifying agent provided by the invention, smoke suppressing effect is good, high-efficiency environment friendly, and maximum smoke density is about 2.88kg/
M3, smoke density grade are relatively low.It is added to after pitch, the property of pitch is not influenceed, and between modifying agent and pitch
Compatibility is fine, and the addition of coupling agent makes asphalt system more stable.With preferable high-temperature stability, within 250 DEG C not
It can decompose, this can ensure that smoke suppressant will not occur rotten and lose smoke suppressing effect after being added among pitch.With compared with
Good smoke suppressing effect, there is the advantages of environmentally friendly, efficient, free from environmental pollution, to operating personnel's non-hazardous.
Wherein, the mass percent that the smoke suppressant content accounts for pitch usage amount is preferably 2%~8%, and more preferably 3%
~7%, it is further preferably 4%~6%.Smoke suppressant is a kind of can to suppress various polymeric materials smoke amount in combustion
Compound, by special chemically and physically effect, under conditions of a small amount of use, it can substantially reduce various flame-retardant polymers
Material such as timber, plastics, rubber, coating, the smoke density and smoke amount of adhesive and insulating foam during combustion, suitably
Improve the anti-flammability and oxygen index (OI) of these materials.Feature is to reduce product burns smoke amount, plays a part of retarded combustion.It is applicable
Field includes building materials, tubing, electric wire, insulation material etc..Smoke suppressant provided by the invention is preferably magnesium hydroxide or hydrogen-oxygen
Change aluminium.The magnesia that magnesium hydroxide decomposes generation is good refractory material again, can also help to improve the apyrous of synthetic material
Can, while the vapor that it is released can also be used as a kind of smoke suppressant.Magnesium hydroxide is that have fire-retardant, suppression in generally acknowledged rubber and plastic industry
Cigarette, the outstanding fire retardant for filling triple functions.Be widely used in rubber, chemical industry, building materials, plastics and electronics, unsaturated polyester (UP) and
In paint, coating Polymer material.Particularly to mining air duct coating cloth, the whole core conveyer belts of PVC, flame-retardant aluminum plastic plate, resistance
Combustion tarpaulin, PVC cable material, mine cable sheath, the fire-retardant of cable accessory, smoke elimination are antistatic, can replace aluminium hydroxide, have
There is excellent flame retardant effect.Magnesium hydroxide has more preferable smoke suppressing effect compared with similar inorganic combustion inhibitor.Magnesium hydroxide is in life
Unharmful substance discharge in production, use and waste procedures, and caused acid and corrosivity in combustion process can also be neutralized
Gas.During exclusive use, dosage is typically 40%~60%.
The mass percent that the coupling agent content accounts for pitch usage amount is preferably 2%~4.5%, more preferably 3%~
4%, it is further preferably 3.5%~4%.Coupling agent is a kind of material with two heterogeneity functional groups, and its molecular structure is most
Big feature be containing two groups that chemical property is different in molecule, one be close inorganic matter group, easily and mineral surfaces
Chemically reactive；Another is organophilic group, chemical reaction or generation can occur with synthetic resin or other polymer
Hydrogen bond is dissolved in wherein.Therefore coupling agent is referred to as " molecular bridge ", to improve the interface interaction between inorganic matter and organic matter, from
And the performance of composite is greatly improved, such as physical property, electrical property, hot property, optical property.Currently preferred coupling agent
For silane coupler.The formula of silane coupler is RSiX3, in formula R represent amino, sulfydryl, vinyl, epoxy radicals, cyano group and
The groups such as methacryloxy, these groups and different matrix resins are respectively provided with stronger respond, and X is represented being capable of water
The alkoxy (such as methoxyl group, ethyoxyl) of solution.Silane coupler has KH550, KH560, KH570, KH792 at home,
This several model of DL602, DL171.After silane coupler adds pitch, composite asphalt compound is used on the road of 7d and 28d ages
Performance is first improved and reduced afterwards, and when dosage is the 0.6% of emulsified asphalt mass fraction, compound freeze-thaw split intensity ratio, horse have a rest
You improve 10%-30% by the pavement performance such as stability and compression rebound modulu.Granite after silane coupler modified gathers materials
The Si-O keys of coupling agent molecule structure are introduced, have the generation of Si-O-Si keys in rubber cement and aggregate Interface；After filling coupling agent
Cement-emulsified asphalt rubber cement surface becomes uneven, and compact structure improves；Cement-emulsified asphalt rubber cement can preferably glue
Granite surface of aggregate is invested, rubber cement is improved with aggregate Interface structure.
The mass percent that the smoke suppressant auxiliary agent content accounts for pitch usage amount is preferably 2%~8%, and more preferably 3%
~6%, it is further preferably 4%~6%.
The mass percent that the metal oxide content accounts for pitch usage amount is preferably 2%~4%, and more preferably 3%
~4%, it is further preferably 3.5%~4%.Metal oxidation provided by the invention has good flame-retardant smoke inhibition effect.The inorganic resistance
Combustion agent (inorganic flame retardnat) is that high temperature resistant solution adds the retrofit of ultra micro inorganic, metal oxide and group
Into.Inorganic combustion inhibitor mainly in the form of simple substance or compound is added to the inorganic elements with inherent flame retardancy fire-retardant
Base material in, be sufficiently mixed with high polymer with physical dispersion state, played in gas phase or condensed phase by chemically or physically changing
Fire retardation.Mainly have metal Mg, Al, Ca, nonmetallic B, Si, N, P, Sb with the wooden ignition-proof element of developmental research, halogen and
Transition elements Mo, V, Fe etc., inorganic based flame retardant mainly have metal hydrate, red phosphorus, boron compound, antimony class compound etc.,
Inorganic combustion inhibitor has the characteristics that heat endurance is good, non-volatile, effect is lasting, cheap, is widely used.The present invention
Preferable metal oxide is aluminum oxide or magnesia.Aluminium hydroxide and magnesium hydroxide are all two kinds of important inorganic combustion inhibitors,
The characteristics of its is common is environment-friendly, fire-retardant, suppression cigarette and filling function.Aluminium hydroxide be come out earliest inorganic combustion inhibitor it
One, aluminium hydroxide has the characteristics that stability is good, nontoxic, not produce corrosive gas, flame retardant effect lasting as fire retardant,
And product whiteness is high.The decomposition temperature of magnesium hydroxide is high, and its anti-also proper energy of can be used under conditions of processing temperature is higher
Power and strong point are preferable.
Present invention also offers one kind to press down cigarette modified pitch.The suppression cigarette modified pitch includes above-mentioned pitch suppression cigarette and is modified
Agent.
Present invention also offers a kind of preparation method of above-mentioned suppression cigarette modified pitch, methods described includes taking certain mass
Matrix pitch；
Added into the matrix pitch its mass percent be 1%~10% smoke suppressant, 1%~5% coupling agent,
1%~10% smoke suppressant auxiliary agent, 1%~5% metal oxide obtain mixture；
By the mixture at a temperature of 130~160 DEG C, with 4000~5000r/min speed high speed shear, shearing
45~55 minutes, produce the suppression cigarette modified pitch.
Wherein, the smoke suppressant, coupling agent, smoke suppressant auxiliary agent, metal oxide are same as above, will not be repeated here.
In order to further illustrate the present invention, with reference to embodiments to a kind of pitch smoke inhibition modifying agent provided by the invention,
Suppression cigarette modified pitch and preparation method thereof is described in detail.
Reagent used is commercially available in following examples, and pitch is given birth to from the auspicious crude oil of South America agate and Persian bank crude oil mixing
The asphalt of production is as matrix pitch (South America heavy petroleum asphalt).
Embodiment
500g 70# pitches are taken respectively, according to the mass percent listed by table 1 below, are added among the pitch,
At 150 DEG C, using high speed shear instrument, with 4500r/min speed, shear 50 minutes, obtain this kind suppression cigarette modified pitch.
Table 1：A kind of adding proportion of efficient and environment-friendly type pitch smoke inhibition modifying agent in pitch
According to above-mentioned proportion, add modifying agent provided by the invention and produce suppression cigarette modified pitch, the pitch changes with being not added with
The Nature comparison of generic media pitch before property agent see the table below 2：
Table 2：Asphalt performance compares before and after adding smoke suppressant provided by the invention
From the experimental result of table 2, after adding described pitch smoke inhibition modifying agent provided by the invention, modified pitch
Technical indicator be more or less the same with matrix pitch, but the ageing loss of modified pitch significantly reduces, and smoke density grade phase
Matrix pitch is significantly reduced, this illustrates that pitch smoke inhibition modifying agent of the present invention can effectively reduce the flue gas generation of pitch
Amount.This kind of modifying agent can not only effectively reduce the generation of bitumen flue gas, and have certain ageing resistace.
It should be noted that herein, term " comprising ", "comprising" or its any other variant are intended to non-row
His property includes, so that process, method, article or equipment including a series of elements not only include those key elements, and
And also include the other element being not expressly set out, or also include for this process, method, article or equipment institute inherently
Key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that including institute
State in process, method, article or the equipment of key element and other identical element also be present.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the scope of the present invention.It is all
Any modification, equivalent substitution and improvements made within the spirit and principles in the present invention etc., are all contained in protection scope of the present invention
It is interior.
Claims (8)
- A kind of 1. pitch smoke inhibition modifying agent, it is characterised in that to account in terms of the mass percent of matrix pitch usage amount, including it is as follows Component：
- 2. modifying agent according to claim 1, it is characterised in that the smoke suppressant is magnesium hydroxide or aluminium hydroxide.
- 3. modifying agent according to claim 1, it is characterised in that the coupling agent is silane coupler.
- 4. modifying agent according to claim 1, it is characterised in that the smoke suppressant auxiliary agent is certain class new type resin.
- 5. modifying agent according to claim 1, it is characterised in that the metal oxide is aluminum oxide or magnesia.
- A kind of 6. suppression cigarette modified pitch for including pitch smoke inhibition modifying agent described in claim 1 to 5 any one.
- 7. press down the preparation method of cigarette modified pitch described in a kind of claim 6, it is characterised in that methods described includes：Take the matrix pitch of certain mass；The smoke suppressant, 1%~5% coupling agent, 1% that its mass percent is 1%~10% are added into the matrix pitch ~10% smoke suppressant auxiliary agent, 1%~5% metal oxide obtain mixture；By the mixture at a temperature of 130~160 DEG C, with 4000~5000r/min speed high speed shear, shearing 45~ 55 minutes, produce the suppression cigarette modified pitch.
- 8. method according to claim 7, it is characterised in that it is described by the mixture at a temperature of 130~160 DEG C, With 4000~5000r/min speed high speed shear, shear 45~55 minutes, produce the suppression cigarette modified pitch；Including：By the mixture at a temperature of 150 DEG C, with 4500r/min speed high speed shear, shear 50 minutes, produce described Press down cigarette modified pitch.
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Effective date of registration: 20201014 Address after: 100000 Beijing city Dongcheng District No. 16 Andrew Applicant after: PetroChina Company Limited Applicant after: PETROCHINA FUEL OIL Co.,Ltd. Address before: 100000 Beijing Haidian District, North dock Village Road No. 25, static core E Applicant before: RESEARCH INSTITUTE OF PETROCHINA FUEL OIL Co.,Ltd. |
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Application publication date: 20180223 |