CN117965034A - Odor-free asphalt additive, odor-free asphalt and preparation method thereof - Google Patents
Odor-free asphalt additive, odor-free asphalt and preparation method thereof Download PDFInfo
- Publication number
- CN117965034A CN117965034A CN202211301416.8A CN202211301416A CN117965034A CN 117965034 A CN117965034 A CN 117965034A CN 202211301416 A CN202211301416 A CN 202211301416A CN 117965034 A CN117965034 A CN 117965034A
- Authority
- CN
- China
- Prior art keywords
- odor
- asphalt
- boiling point
- stirring
- microcapsule
- 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.)
- Pending
Links
- 239000010426 asphalt Substances 0.000 title claims abstract description 119
- 239000000654 additive Substances 0.000 title claims abstract description 46
- 230000000996 additive effect Effects 0.000 title claims abstract description 46
- 238000002360 preparation method Methods 0.000 title claims abstract description 8
- 238000003756 stirring Methods 0.000 claims abstract description 72
- 239000003094 microcapsule Substances 0.000 claims abstract description 62
- 239000011162 core material Substances 0.000 claims abstract description 34
- 238000002156 mixing Methods 0.000 claims abstract description 24
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 19
- 239000011159 matrix material Substances 0.000 claims abstract description 14
- 235000007586 terpenes Nutrition 0.000 claims abstract description 12
- 150000001299 aldehydes Chemical class 0.000 claims abstract description 9
- 239000002270 dispersing agent Substances 0.000 claims abstract description 9
- 150000002148 esters Chemical class 0.000 claims abstract description 9
- 239000011257 shell material Substances 0.000 claims abstract description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 8
- 150000003505 terpenes Chemical class 0.000 claims abstract description 5
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 4
- 235000012239 silicon dioxide Nutrition 0.000 claims abstract description 4
- 150000001298 alcohols Chemical class 0.000 claims abstract description 3
- 238000009835 boiling Methods 0.000 claims description 41
- -1 amide compounds Chemical class 0.000 claims description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 33
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 26
- 239000012153 distilled water Substances 0.000 claims description 26
- 238000000034 method Methods 0.000 claims description 24
- GLZPCOQZEFWAFX-UHFFFAOYSA-N Geraniol Chemical compound CC(C)=CCCC(C)=CCO GLZPCOQZEFWAFX-UHFFFAOYSA-N 0.000 claims description 20
- 239000000839 emulsion Substances 0.000 claims description 16
- MTZQAGJQAFMTAQ-UHFFFAOYSA-N ethyl benzoate Chemical compound CCOC(=O)C1=CC=CC=C1 MTZQAGJQAFMTAQ-UHFFFAOYSA-N 0.000 claims description 14
- YHQGMYUVUMAZJR-UHFFFAOYSA-N α-terpinene Chemical compound CC(C)C1=CC=C(C)CC1 YHQGMYUVUMAZJR-UHFFFAOYSA-N 0.000 claims description 14
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 12
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 claims description 12
- 239000003963 antioxidant agent Substances 0.000 claims description 12
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 11
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 11
- 238000004108 freeze drying Methods 0.000 claims description 11
- 239000007787 solid Substances 0.000 claims description 11
- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical compound CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 claims description 10
- LZZYPRNAOMGNLH-UHFFFAOYSA-M Cetrimonium bromide Chemical compound [Br-].CCCCCCCCCCCCCCCC[N+](C)(C)C LZZYPRNAOMGNLH-UHFFFAOYSA-M 0.000 claims description 10
- 230000003078 antioxidant effect Effects 0.000 claims description 10
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 8
- KJPRLNWUNMBNBZ-QPJJXVBHSA-N (E)-cinnamaldehyde Chemical compound O=C\C=C\C1=CC=CC=C1 KJPRLNWUNMBNBZ-QPJJXVBHSA-N 0.000 claims description 7
- WTEVQBCEXWBHNA-UHFFFAOYSA-N Citral Natural products CC(C)=CCCC(C)=CC=O WTEVQBCEXWBHNA-UHFFFAOYSA-N 0.000 claims description 7
- GLZPCOQZEFWAFX-YFHOEESVSA-N Geraniol Natural products CC(C)=CCC\C(C)=C/CO GLZPCOQZEFWAFX-YFHOEESVSA-N 0.000 claims description 7
- 239000005792 Geraniol Substances 0.000 claims description 7
- WSTYNZDAOAEEKG-UHFFFAOYSA-N Mayol Natural products CC1=C(O)C(=O)C=C2C(CCC3(C4CC(C(CC4(CCC33C)C)=O)C)C)(C)C3=CC=C21 WSTYNZDAOAEEKG-UHFFFAOYSA-N 0.000 claims description 7
- 229940117916 cinnamic aldehyde Drugs 0.000 claims description 7
- KJPRLNWUNMBNBZ-UHFFFAOYSA-N cinnamic aldehyde Natural products O=CC=CC1=CC=CC=C1 KJPRLNWUNMBNBZ-UHFFFAOYSA-N 0.000 claims description 7
- 229940043350 citral Drugs 0.000 claims description 7
- 239000008367 deionised water Substances 0.000 claims description 7
- 229910021641 deionized water Inorganic materials 0.000 claims description 7
- 238000001914 filtration Methods 0.000 claims description 7
- WTEVQBCEXWBHNA-JXMROGBWSA-N geranial Chemical compound CC(C)=CCC\C(C)=C\C=O WTEVQBCEXWBHNA-JXMROGBWSA-N 0.000 claims description 7
- HIGQPQRQIQDZMP-UHFFFAOYSA-N geranil acetate Natural products CC(C)=CCCC(C)=CCOC(C)=O HIGQPQRQIQDZMP-UHFFFAOYSA-N 0.000 claims description 7
- 229940113087 geraniol Drugs 0.000 claims description 7
- HIGQPQRQIQDZMP-DHZHZOJOSA-N geranyl acetate Chemical compound CC(C)=CCC\C(C)=C\COC(C)=O HIGQPQRQIQDZMP-DHZHZOJOSA-N 0.000 claims description 7
- 238000005406 washing Methods 0.000 claims description 7
- HIDBROSJWZYGSZ-UHFFFAOYSA-N 1-phenylpyrrole-2,5-dione Chemical compound O=C1C=CC(=O)N1C1=CC=CC=C1 HIDBROSJWZYGSZ-UHFFFAOYSA-N 0.000 claims description 6
- WRMNZCZEMHIOCP-UHFFFAOYSA-N 2-phenylethanol Chemical compound OCCC1=CC=CC=C1 WRMNZCZEMHIOCP-UHFFFAOYSA-N 0.000 claims description 6
- YEXOWHQZWLCHHD-UHFFFAOYSA-N 3,5-ditert-butyl-4-hydroxybenzoic acid Chemical compound CC(C)(C)C1=CC(C(O)=O)=CC(C(C)(C)C)=C1O YEXOWHQZWLCHHD-UHFFFAOYSA-N 0.000 claims description 6
- MNFZZNNFORDXSV-UHFFFAOYSA-N 4-(diethylamino)benzaldehyde Chemical compound CCN(CC)C1=CC=C(C=O)C=C1 MNFZZNNFORDXSV-UHFFFAOYSA-N 0.000 claims description 6
- JZIARAQCPRDGAC-UHFFFAOYSA-N Linalyl isobutyrate Chemical compound CC(C)C(=O)OC(C)(C=C)CCC=C(C)C JZIARAQCPRDGAC-UHFFFAOYSA-N 0.000 claims description 6
- SESFRYSPDFLNCH-UHFFFAOYSA-N benzyl benzoate Chemical compound C=1C=CC=CC=1C(=O)OCC1=CC=CC=C1 SESFRYSPDFLNCH-UHFFFAOYSA-N 0.000 claims description 6
- NEHNMFOYXAPHSD-UHFFFAOYSA-N citronellal Chemical compound O=CCC(C)CCC=C(C)C NEHNMFOYXAPHSD-UHFFFAOYSA-N 0.000 claims description 6
- JOZKFWLRHCDGJA-UHFFFAOYSA-N citronellol acetate Chemical compound CC(=O)OCCC(C)CCC=C(C)C JOZKFWLRHCDGJA-UHFFFAOYSA-N 0.000 claims description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims description 6
- SATCULPHIDQDRE-UHFFFAOYSA-N piperonal Chemical compound O=CC1=CC=C2OCOC2=C1 SATCULPHIDQDRE-UHFFFAOYSA-N 0.000 claims description 6
- OGLDWXZKYODSOB-UHFFFAOYSA-N α-phellandrene Chemical compound CC(C)C1CC=C(C)C=C1 OGLDWXZKYODSOB-UHFFFAOYSA-N 0.000 claims description 6
- GRWFGVWFFZKLTI-UHFFFAOYSA-N α-pinene Chemical compound CC1=CCC2C(C)(C)C1C2 GRWFGVWFFZKLTI-UHFFFAOYSA-N 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 5
- WUOACPNHFRMFPN-UHFFFAOYSA-N alpha-terpineol Chemical compound CC1=CCC(C(C)(C)O)CC1 WUOACPNHFRMFPN-UHFFFAOYSA-N 0.000 claims description 4
- 150000003934 aromatic aldehydes Chemical class 0.000 claims description 4
- 150000001732 carboxylic acid derivatives Chemical class 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 4
- NPNUFJAVOOONJE-ZIAGYGMSSA-N β-(E)-Caryophyllene Chemical compound C1CC(C)=CCCC(=C)[C@H]2CC(C)(C)[C@@H]21 NPNUFJAVOOONJE-ZIAGYGMSSA-N 0.000 claims description 4
- CTYWXRDQWMRIIM-BQYQJAHWSA-N (e)-3-(3,5-ditert-butyl-4-hydroxyphenyl)prop-2-enoic acid Chemical compound CC(C)(C)C1=CC(\C=C\C(O)=O)=CC(C(C)(C)C)=C1O CTYWXRDQWMRIIM-BQYQJAHWSA-N 0.000 claims description 3
- GRWFGVWFFZKLTI-IUCAKERBSA-N 1S,5S-(-)-alpha-Pinene Natural products CC1=CC[C@@H]2C(C)(C)[C@H]1C2 GRWFGVWFFZKLTI-IUCAKERBSA-N 0.000 claims description 3
- DUAYDERMVQWIJD-UHFFFAOYSA-N 2-n,2-n,6-trimethyl-1,3,5-triazine-2,4-diamine Chemical compound CN(C)C1=NC(C)=NC(N)=N1 DUAYDERMVQWIJD-UHFFFAOYSA-N 0.000 claims description 3
- WVDDGKGOMKODPV-UHFFFAOYSA-N Benzyl alcohol Chemical compound OCC1=CC=CC=C1 WVDDGKGOMKODPV-UHFFFAOYSA-N 0.000 claims description 3
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 claims description 3
- JOZKFWLRHCDGJA-LLVKDONJSA-N Citronellyl acetate Natural products CC(=O)OCC[C@H](C)CCC=C(C)C JOZKFWLRHCDGJA-LLVKDONJSA-N 0.000 claims description 3
- GLZPCOQZEFWAFX-JXMROGBWSA-N Nerol Natural products CC(C)=CCC\C(C)=C\CO GLZPCOQZEFWAFX-JXMROGBWSA-N 0.000 claims description 3
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 claims description 3
- OGLDWXZKYODSOB-SNVBAGLBSA-N alpha-phellandrene Natural products CC(C)[C@H]1CC=C(C)C=C1 OGLDWXZKYODSOB-SNVBAGLBSA-N 0.000 claims description 3
- MVNCAPSFBDBCGF-UHFFFAOYSA-N alpha-pinene Natural products CC1=CCC23C1CC2C3(C)C MVNCAPSFBDBCGF-UHFFFAOYSA-N 0.000 claims description 3
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 claims description 3
- KYZHGEFMXZOSJN-UHFFFAOYSA-N benzoic acid isobutyl ester Natural products CC(C)COC(=O)C1=CC=CC=C1 KYZHGEFMXZOSJN-UHFFFAOYSA-N 0.000 claims description 3
- 229960002903 benzyl benzoate Drugs 0.000 claims description 3
- 229930003633 citronellal Natural products 0.000 claims description 3
- 235000000983 citronellal Nutrition 0.000 claims description 3
- 239000003995 emulsifying agent Substances 0.000 claims description 3
- WPFVBOQKRVRMJB-UHFFFAOYSA-N hydroxycitronellal Chemical compound O=CCC(C)CCCC(C)(C)O WPFVBOQKRVRMJB-UHFFFAOYSA-N 0.000 claims description 3
- DVEKCXOJTLDBFE-UHFFFAOYSA-N n-dodecyl-n,n-dimethylglycinate Chemical group CCCCCCCCCCCC[N+](C)(C)CC([O-])=O DVEKCXOJTLDBFE-UHFFFAOYSA-N 0.000 claims description 3
- 239000002086 nanomaterial Substances 0.000 claims description 3
- BOPPSUHPZARXTH-UHFFFAOYSA-N ocean propanal Chemical compound O=CC(C)CC1=CC=C2OCOC2=C1 BOPPSUHPZARXTH-UHFFFAOYSA-N 0.000 claims description 3
- ZRSNZINYAWTAHE-UHFFFAOYSA-N p-methoxybenzaldehyde Chemical compound COC1=CC=C(C=O)C=C1 ZRSNZINYAWTAHE-UHFFFAOYSA-N 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 claims description 3
- MWOOGOJBHIARFG-UHFFFAOYSA-N vanillin Chemical compound COC1=CC(C=O)=CC=C1O MWOOGOJBHIARFG-UHFFFAOYSA-N 0.000 claims description 3
- FGQOOHJZONJGDT-UHFFFAOYSA-N vanillin Natural products COC1=CC(O)=CC(C=O)=C1 FGQOOHJZONJGDT-UHFFFAOYSA-N 0.000 claims description 3
- AXTADRUCVAUCRS-UHFFFAOYSA-N 1-(2-hydroxyethyl)pyrrole-2,5-dione Chemical compound OCCN1C(=O)C=CC1=O AXTADRUCVAUCRS-UHFFFAOYSA-N 0.000 claims description 2
- XQUPVDVFXZDTLT-UHFFFAOYSA-N 1-[4-[[4-(2,5-dioxopyrrol-1-yl)phenyl]methyl]phenyl]pyrrole-2,5-dione Chemical compound O=C1C=CC(=O)N1C(C=C1)=CC=C1CC1=CC=C(N2C(C=CC2=O)=O)C=C1 XQUPVDVFXZDTLT-UHFFFAOYSA-N 0.000 claims description 2
- WPMYUUITDBHVQZ-UHFFFAOYSA-N 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoic acid Chemical compound CC(C)(C)C1=CC(CCC(O)=O)=CC(C(C)(C)C)=C1O WPMYUUITDBHVQZ-UHFFFAOYSA-N 0.000 claims description 2
- UEEZMPKIFPDZLX-UHFFFAOYSA-N 3-(4-hydroxy-3,5-dimethylphenyl)prop-2-enoic acid Chemical compound CC1=CC(C=CC(O)=O)=CC(C)=C1O UEEZMPKIFPDZLX-UHFFFAOYSA-N 0.000 claims description 2
- KSEBMYQBYZTDHS-UHFFFAOYSA-N 3-(4-hydroxy-3-methoxyphenyl)prop-2-enoic acid Chemical compound COC1=CC(C=CC(O)=O)=CC=C1O KSEBMYQBYZTDHS-UHFFFAOYSA-N 0.000 claims description 2
- MLLAPOCBLWUFAP-UHFFFAOYSA-N 3-Methylbutyl benzoate Chemical compound CC(C)CCOC(=O)C1=CC=CC=C1 MLLAPOCBLWUFAP-UHFFFAOYSA-N 0.000 claims description 2
- ZGPPERKMXSGYRK-UHFFFAOYSA-N Citronellyl isobutyrate Chemical compound CC(C)=CCCC(C)CCOC(=O)C(C)C ZGPPERKMXSGYRK-UHFFFAOYSA-N 0.000 claims description 2
- 241000218636 Thuja Species 0.000 claims description 2
- 230000032683 aging Effects 0.000 claims description 2
- 150000001336 alkenes Chemical class 0.000 claims description 2
- 150000001412 amines Chemical class 0.000 claims description 2
- NPNUFJAVOOONJE-UHFFFAOYSA-N beta-cariophyllene Natural products C1CC(C)=CCCC(=C)C2CC(C)(C)C21 NPNUFJAVOOONJE-UHFFFAOYSA-N 0.000 claims description 2
- NPNUFJAVOOONJE-UONOGXRCSA-N caryophyllene Natural products C1CC(C)=CCCC(=C)[C@@H]2CC(C)(C)[C@@H]21 NPNUFJAVOOONJE-UONOGXRCSA-N 0.000 claims description 2
- DUNCVNHORHNONW-UHFFFAOYSA-N myrcenol Chemical compound CC(C)(O)CCCC(=C)C=C DUNCVNHORHNONW-UHFFFAOYSA-N 0.000 claims description 2
- 229930008383 myrcenol Natural products 0.000 claims description 2
- FUZZWVXGSFPDMH-UHFFFAOYSA-N n-hexanoic acid Natural products CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 claims description 2
- PCMORTLOPMLEFB-UHFFFAOYSA-N sinapic acid Chemical compound COC1=CC(C=CC(O)=O)=CC(OC)=C1O PCMORTLOPMLEFB-UHFFFAOYSA-N 0.000 claims description 2
- 230000009965 odorless effect Effects 0.000 claims 13
- 230000008030 elimination Effects 0.000 claims 1
- 238000003379 elimination reaction Methods 0.000 claims 1
- 239000000779 smoke Substances 0.000 abstract description 9
- 239000002085 irritant Substances 0.000 abstract description 4
- 231100000021 irritant Toxicity 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 2
- 238000010438 heat treatment Methods 0.000 abstract description 2
- 239000011259 mixed solution Substances 0.000 description 19
- 239000002781 deodorant agent Substances 0.000 description 11
- 239000007789 gas Substances 0.000 description 8
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 6
- 238000010276 construction Methods 0.000 description 6
- 239000003546 flue gas Substances 0.000 description 6
- 239000003517 fume Substances 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 4
- 230000002431 foraging effect Effects 0.000 description 4
- QMMFVYPAHWMCMS-UHFFFAOYSA-N Dimethyl sulfide Chemical compound CSC QMMFVYPAHWMCMS-UHFFFAOYSA-N 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 229930195733 hydrocarbon Natural products 0.000 description 3
- 150000002430 hydrocarbons Chemical class 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- UJOBWOGCFQCDNV-UHFFFAOYSA-N 9H-carbazole Chemical compound C1=CC=C2C3=CC=CC=C3NC2=C1 UJOBWOGCFQCDNV-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 2
- LSDPWZHWYPCBBB-UHFFFAOYSA-N Methanethiol Chemical compound SC LSDPWZHWYPCBBB-UHFFFAOYSA-N 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- YTPLMLYBLZKORZ-UHFFFAOYSA-N Thiophene Chemical compound C=1C=CSC=1 YTPLMLYBLZKORZ-UHFFFAOYSA-N 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- WQOXQRCZOLPYPM-UHFFFAOYSA-N dimethyl disulfide Chemical compound CSSC WQOXQRCZOLPYPM-UHFFFAOYSA-N 0.000 description 2
- 238000004817 gas chromatography Methods 0.000 description 2
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 2
- 125000005575 polycyclic aromatic hydrocarbon group Chemical group 0.000 description 2
- 150000003254 radicals Chemical class 0.000 description 2
- WHEOHCIKAJUSJC-UHFFFAOYSA-N 1-[2-[bis[2-(2,5-dioxopyrrol-1-yl)ethyl]amino]ethyl]pyrrole-2,5-dione Chemical compound O=C1C=CC(=O)N1CCN(CCN1C(C=CC1=O)=O)CCN1C(=O)C=CC1=O WHEOHCIKAJUSJC-UHFFFAOYSA-N 0.000 description 1
- AIAMDEVDYXNNEU-UHFFFAOYSA-N 6-methylheptyl propanoate Chemical compound CCC(=O)OCCCCCC(C)C AIAMDEVDYXNNEU-UHFFFAOYSA-N 0.000 description 1
- FMMWHPNWAFZXNH-UHFFFAOYSA-N Benz[a]pyrene Chemical compound C1=C2C3=CC=CC=C3C=C(C=C3)C2=C2C3=CC=CC2=C1 FMMWHPNWAFZXNH-UHFFFAOYSA-N 0.000 description 1
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- 241000196324 Embryophyta Species 0.000 description 1
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- 230000001133 acceleration Effects 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 150000001555 benzenes Chemical class 0.000 description 1
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- 231100000357 carcinogen Toxicity 0.000 description 1
- 239000003183 carcinogenic agent Substances 0.000 description 1
- 239000003093 cationic surfactant Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
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- 238000004134 energy conservation Methods 0.000 description 1
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- 239000002184 metal Substances 0.000 description 1
- NFHFRUOZVGFOOS-UHFFFAOYSA-N palladium;triphenylphosphane Chemical compound [Pd].C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 NFHFRUOZVGFOOS-UHFFFAOYSA-N 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- WVDDGKGOMKODPV-ZQBYOMGUSA-N phenyl(114C)methanol Chemical compound O[14CH2]C1=CC=CC=C1 WVDDGKGOMKODPV-ZQBYOMGUSA-N 0.000 description 1
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- 229910052717 sulfur Inorganic materials 0.000 description 1
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- 239000004094 surface-active agent Substances 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
- 229930192474 thiophene Natural products 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Landscapes
- Fats And Perfumes (AREA)
Abstract
The invention discloses an odor-free asphalt additive, odor-free asphalt and a preparation method thereof. The odor-free asphalt additive comprises the following components in parts by weight: 1-5 parts of auxiliary odor removing agent; 1-5 parts of modified slow-release odor-removing microcapsule; 1-10 parts of dispersing agent; the modified slow-release odor-removing microcapsule comprises a shell material and a core material, wherein the shell material is silicon dioxide; the core material is selected from one or more of aldehydes, esters, alcohols and terpenes. The odor-free asphalt comprises the following components in parts by weight: 100-500 parts of matrix asphalt; 5-30 parts of an odor-free asphalt additive; the odor-free asphalt additive is prepared by heating matrix asphalt to a molten state, adding the odor-free asphalt additive under stirring, and uniformly mixing to obtain the odor-free asphalt. The modified slow-release odor-removing microcapsule is adopted as the odor-removing asphalt additive, and the odor-removing asphalt effectively reduces the content of irritant gas in asphalt smoke through the slow-release effect of the microcapsule, so that the odor-removing asphalt has good application prospect.
Description
Technical Field
The invention belongs to the field of environment-friendly asphalt, and particularly relates to an odor-free asphalt additive, odor-free asphalt and a preparation method thereof.
Background
With the continuous acceleration of urban modern construction pace, urban roads as municipal construction center links are also continuously expanding. Asphalt pavement has become a main structural form of high-grade pavement due to good mechanical property, smooth and wear-resistant surface, comfortable driving experience and good construction workability. However, the hot-mix hot-paving process adopted in the construction process of the asphalt pavement can make asphalt release a large amount of asphalt smoke under high temperature conditions, and the asphalt smoke can seriously damage ecological balance, pollute the surrounding environment and damage human health. It is found that the asphalt fume is composed of hydrocarbons with different properties and molecular weights and hydrocarbon derivatives, the particle size of the asphalt fume is concentrated to about 1 mu m, and the asphalt fume is mainly Polycyclic Aromatic Hydrocarbons (PAHs), compounds containing nitrogen and sulfur, wherein the asphalt fume contains strong carcinogens such as carbazole and benzopyrene, and gases with pungent odor such as ammonia, hydrogen sulfide, sulfur dioxide, thiophene, and the like. In recent years, the importance of energy conservation and emission reduction and green development in China is increasingly raised, and related restriction policies of asphalt flue gas emission in the future are the necessary trend. Therefore, research on the treatment and development of asphaltic smoke is necessary.
The currently reported asphalt flue gas treatment method mainly comprises an external device method: the aim of efficiently removing toxic and harmful irritant gases in asphalt smoke is achieved by additionally arranging a smoke adsorption or combustion purifying device at the smoke exhaust tube of asphalt construction equipment. However, the method can only treat the flue gas generated by non-mobile equipment of an asphalt mixing plant when asphalt construction is carried out, and the unstructured flue gas generated by asphalt mixture in the transportation and paving processes cannot be solved, and in addition, the flue gas purifying device is generally expensive and has high operation cost, so that the method is difficult to popularize.
Disclosure of Invention
Aiming at the problems existing in the prior art, the invention provides an odor-free asphalt additive, odor-free asphalt and a preparation method thereof. The modified slow-release odor-removing microcapsule is adopted as the odor-removing asphalt additive, and the odor-removing asphalt effectively reduces the content of irritant gas in asphalt smoke through the slow-release effect of the microcapsule, so that the odor-removing asphalt has good application prospect.
The odor-free asphalt additive comprises the following components in parts by weight:
1-5 parts of auxiliary odor removing agent;
1-5 parts of modified slow-release odor-removing microcapsule;
1-10 parts of dispersing agent.
Further, the mass ratio of the auxiliary odor removing agent to the modified slow-release odor removing microcapsule is 1:1.
Further, the auxiliary odor removing agent is one or more selected from solid aldehydes with a boiling point of more than 250 ℃, amide compounds with a boiling point of more than 250 ℃ and antioxidants with a boiling point of more than 300 ℃.
Further, the solid aldehyde with the boiling point of more than 250 ℃ is selected from one or more of N, N-diethyl-4-aminobenzaldehyde, 3-methoxy-4-hydroxybenzaldehyde and 3, 4-methylenedioxybenzaldehyde.
Further, the amide compound with the boiling point of more than 250 ℃ is selected from one or more of 4,4' -methylenebis (N-phenylmaleimide), N.N-diethylmaleimide, N-phenylmaleimide, 6- (maleimido) caproic acid succinimidyl ester, tri (2-maleimidoethyl) amine and N- (2-hydroxyethyl) maleimide.
Further, the antioxidant with the boiling point higher than 300 ℃ is an ester antioxidant and/or a carboxylic acid antioxidant.
Further, the ester antioxidant with the boiling point of more than 300 ℃ is selected from one or more of n-stearyl beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate, isooctyl beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate and pentaerythritol tetra [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate ].
Further, the carboxylic acid antioxidant with the boiling point of more than 300 ℃ is selected from one or more of 3, 5-di-tert-butyl-4-hydroxybenzoic acid, 3- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid, 3- (3, 5-di-tert-butyl-4-hydroxyphenyl) acrylic acid, 3- (3, 5-dimethyl-4-hydroxyphenyl) acrylic acid, 3- (3, 5-dimethoxy-4-hydroxyphenyl) acrylic acid and 3- (3-methoxy-4-hydroxyphenyl) acrylic acid.
Further, the modified slow-release odor-removing microcapsule comprises a shell material and a core material, wherein the shell material is silicon dioxide.
Further, the core material is selected from one or more of aldehydes, esters, alcohols and terpenes.
Further, the aldehydes are selected from aromatic aldehydes with a boiling point of more than 230 ℃ and terpene aldehydes with a boiling point of more than 170 ℃; the aromatic aldehyde with the boiling point of more than 230 ℃ comprises cinnamaldehyde, p-methoxybenzaldehyde and 2-methyl-3- (3, 4-methylenedioxyphenyl) propanal; the terpene aldehyde with the boiling point of more than 170 ℃ comprises one or more of citral, citronellal and hydroxycitronellal.
Further, the esters are selected from benzoate esters having a boiling point greater than 210 ℃ and terpene alcohol esters having a boiling point greater than 190 ℃; the benzoate with the boiling point of more than 210 ℃ is selected from one or more of ethyl benzoate, isobutyl benzoate, isoamyl benzoate and benzyl benzoate; the terpene alcohol ester with the boiling point of more than 190 ℃ comprises one or more of geranyl acetate, linalyl isobutyrate, citronellyl acetate or citronellyl isobutyrate.
Further, the alcohol is selected from aromatic alcohols with a boiling point greater than 200 ℃ and terpene alcohols with a boiling point greater than 160 ℃; the aromatic alcohol with the boiling point of more than 200 ℃ is selected from one or more of Chun and beta-phenethyl alcohol; the terpene alcohol with boiling point higher than 160 ℃ is selected from one or more of geraniol, nerol, ionol and myrcenol.
Further, the terpene is a cyclic terpene with a boiling point of more than 150 ℃, and is specifically one or more selected from alpha-terpinene, alpha-phellandrene, alpha-pinene, beta-caryophyllene and thuja alkene.
Further, the mass ratio of the shell material to the core material of the modified slow-release odor-removing microcapsule is 1: (0.5-2).
Furthermore, the modified slow-release odor-removing microcapsule has a nano structure, and the particle size is 300-800nm.
Further, the preparation method of the modified slow-release odor-removing microcapsule comprises the following steps:
s1: mixing the core materials in equal mass ratio, adding surfactant and distilled water, and stirring for a period of time to obtain uniform emulsion;
s2: mixing ethyl orthosilicate, distilled water and ethanol, and stirring for a period of time to obtain sol;
S3: dropwise adding the sol prepared in the step S2 into the emulsion prepared in the step S1, simultaneously dropwise adding ammonia water to adjust the pH value of the system to 9-10, stirring for a period of time until the reaction system is grey, then closing stirring, aging for a period of time at a constant temperature, filtering, washing and freeze-drying bottom solid powder to obtain the slow-release odor-removing microcapsule;
s4: adding the slow-release odor-removing microcapsule prepared in the step S3 into deionized water, regulating the pH value of the system to 9-10 by using ammonia water, then adding gamma-aminopropyl triethoxysilane, stirring for a period of time, washing, filtering and freeze-drying solid powder in the system to obtain the modified slow-release odor-removing microcapsule, wherein the whole reaction process is carried out under the protection of nitrogen.
Further, the stirring temperature in the step S1 is 40-65 ℃, the stirring rotating speed is 600-800rpm, and the stirring time is 2-4h.
Further, the emulsifier in step S1 is a cationic surfactant, preferably cetyl trimethylammonium bromide.
Further, the mass ratio of the distilled water to the core material mixed liquid in the step S1 is (5-10): 1, and the mass ratio of the emulsifier to the core material mixed liquid is (0.1-0.5): 1.
Further, in the step S2, the stirring time is 3-5 hours, and the stirring rotating speed is 300-600rpm; the stirring temperature is 40-60 ℃.
Further, in the step S2, the mass ratio of the ethyl orthosilicate to the distilled water is 1: (0.5-2), the mass ratio of distilled water to ethanol is 1: (0.5-2).
Further, in the step S3, the stirring temperature is 40-65 ℃, the stirring rotation speed is 300-600rpm, and the stirring time is 2-4h.
Further, in step S3, the mass ratio of the sol to the emulsion is 1: (0.1-10).
Further, in the step S4, the stirring time is 2-4 hours, and the stirring rotating speed is 100-200rpm; the stirring temperature is 60-80 ℃.
Further, the mass ratio of the slow-release odor-removing microcapsule to the gamma-aminopropyl triethoxysilane in the step S4 is (2-5): 1.
Further, the pH of the solution in the step S4 is 9-10.
Further, the dispersing agent is one of dodecyl dimethyl betaine and 1-hydroxyethyl-carboxymethyl-alkyl imidazoline.
The preparation method of the odor-free asphalt additive comprises the following steps: mixing the auxiliary odor removing agent and the dispersing agent, adding the modified slow-release odor removing microcapsule after the auxiliary odor removing agent is completely dissolved, and uniformly mixing to obtain the odor removing asphalt additive.
The invention also provides the odor-free asphalt which comprises the following components in parts by weight:
100-500 parts of matrix asphalt;
1-30 parts of an odor-free asphalt additive;
Further, heating the matrix asphalt to a molten state, adding the odor-removing asphalt additive under the stirring condition, and uniformly mixing to obtain the odor-removing asphalt.
Wherein, the matrix asphalt is the road asphalt of the number 50, the number 70 and the number 90 sold in the market, and is preferably the class-A asphalt of the number 70.
Compared with the prior art, the invention has the following advantages:
(1) In the odor-free asphalt additive, the core material of the modified slow-release odor-free microcapsule and the auxiliary odor-free agent can be subjected to chemical reaction with lighter components (such as sulfides, benzene series and the like) in asphalt to generate a compound with larger molecular weight, strong stability and higher boiling point, and the compound is not easy to escape at high temperature, so that the content of irritant gas in smoke released by the asphalt during high-temperature construction is effectively reduced;
(2) The odor-free asphalt additive can react with free radicals generated by asphalt under a high-temperature condition, so that low-molecular-weight gaseous hydrocarbons generated by the free radical reaction are reduced, and the risk of haze generation is reduced to a certain extent;
(3) According to the odor-free asphalt additive and the odor-free asphalt, the added modified slow-release odor-free microcapsule can slowly release core materials and odor-free active components after the asphalt is added, so that the purpose of long-acting odor removal and odor inhibition is achieved, the modified slow-release odor-free microcapsule has a nano structure, the shell material is silicon dioxide with a porous structure and a large amount of amino groups modified on the surface, the compatibility with the asphalt is good, the high-temperature stability of the asphalt material can be effectively improved, the road performance of the asphalt material is optimized, and the service life of an asphalt pavement is prolonged.
Drawings
FIG. 1 is an electron micrograph of a modified slow release odor-free microcapsule according to example 1 of the present invention.
Detailed Description
In order to further illustrate the relevant features and technical means of the present invention, the present invention will be described in detail below with reference to examples. The microcapsule is subjected to morphology test by a ZEISS Supra55 scanning electron microscope, the accelerating voltage is 20KV, and the sample is subjected to metal spraying treatment before the microcapsule is tested because the microcapsule wall material is non-conductive; the sulfide in the odor-free asphalt flue gas is tested by an Agilent 7890 gas chromatograph according to a gas chromatograph method for measuring hydrogen sulfide, methyl mercaptan, dimethyl sulfide and dimethyl disulfide in the air quality of the national standard GBT 14678-1993; the matrix asphalt is medium petrochemical Donghai brand No. 70 grade A asphalt.
Example 1
S1: mixing cinnamaldehyde, citral, ethyl benzoate, geranyl acetate, chun, geraniol, alpha-terpinene and the like in a mass ratio, and stirring at a rotation speed of 400rpm for 30min at 50 ℃ to obtain a core material mixed solution;
S2: adding cetyl trimethyl ammonium bromide and distilled water into the core material mixed solution, and continuously stirring at the speed of 800rpm for 4 hours at the temperature of 50 ℃ to form uniform emulsion, wherein the mass ratio of the core material mixed solution to the cetyl trimethyl ammonium bromide to the distilled water is 5:1:34;
s3: stirring ethyl orthosilicate, distilled water and ethanol at 50 ℃ at 400rpm for 4 hours to obtain sol, wherein the mass ratio of the ethyl orthosilicate to the distilled water to the ethanol is 1:1:2;
S4: dripping the prepared sol into the emulsion prepared in the step S2, wherein the mass ratio of the sol to the core material mixed solution is 1:2, dripping ammonia water to adjust the pH=9 of the system, stirring at 400rpm for 3 hours at 50 ℃, then closing stirring, maintaining the temperature at 50 ℃ for aging for 12 hours, and centrifuging and freeze-drying to obtain the slow-release odor-removing microcapsule;
S5: adding the slow-release odor-removing microcapsule prepared in the step S4 into deionized water, regulating the pH=10 by using ammonia water, then adding gamma-aminopropyl triethoxysilane, stirring for 2 hours at the temperature of 70 ℃ and the rotating speed of 200rpm, washing, filtering and freeze-drying after stirring is finished to obtain a modified slow-release odor-removing microcapsule, wherein the whole reaction process is carried out under the protection of nitrogen, and the mass ratio of the slow-release odor-removing microcapsule to the gamma-aminopropyl triethoxysilane is 2:1;
S6: mixing the active components of auxiliary odor removing agent, namely N, N-diethyl-4-aminobenzaldehyde, 4' -methylenebis (N-phenylmaleimide), beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) isooctyl propionate, 3, 5-di-tert-butyl-4-hydroxybenzoic acid and the like in proportion, dispersing the mixture in 1-hydroxyethyl-carboxymethyl-alkyl imidazoline, stirring and mixing the mixture at normal temperature at a rotating speed of 400rpm, adding the modified slow-release odor removing microcapsule prepared by S5 after the solid is completely dissolved, and continuing stirring for 1h to prepare the odor removing asphalt additive, wherein the mass ratio of the modified slow-release odor removing microcapsule to the auxiliary odor removing agent to the 1-hydroxyethyl-carboxymethyl-alkyl imidazoline is 1:1:2;
Further, 100 parts of 70 grade A matrix asphalt is heated to 143 ℃,8 parts of odor-free asphalt additive is added at the rotation speed of 500rpm, and the odor-free asphalt is obtained after stirring for 2 hours.
Example 2
The procedure is as in example 1 except that the mass ratio of sol to emulsion is 1:1.
Example 3
The procedure is as in example 1 except that the mass ratio of sol to emulsion is 1:4.
Example 4
The procedure was the same as in example 1 except that the amount of the matrix asphalt used was 200 parts.
Example 5
The procedure of example 1 was repeated except that the dispersant was dodecyl dimethyl betaine.
Example 6
The core material-removing solution was mixed with p-methoxybenzaldehyde, citronellal, isobutyl benzoate, linalyl isobutyrate, benzyl alcohol, nerol, α -phellandrene and the like in the same ratio, and the rest was the same as in example 1.
Example 7
The procedure of example 6 was repeated except that the auxiliary odor eliminator was mixed with 3-methoxy-4-hydroxybenzaldehyde, N.N-diethylmaleimide, pentaerythritol tetrakis [ beta- (3, 5-di-t-butyl-4-hydroxyphenyl) propionate ] and 3- (3, 5-di-t-butyl-4-hydroxyphenyl) propionate in the same proportions.
Example 8
The core material removing solution was mixed with 2-methyl-3- (3, 4-methylenedioxyphenyl) propanal, hydroxycitronellal, benzyl benzoate, citronellyl acetate, beta-phenethyl alcohol, ionol, alpha-pinene and the like in the same proportions, and the auxiliary odor removing agent was mixed with 3, 4-methylenedioxybenzaldehyde, tris (2-maleimidoethyl) amine, isooctyl beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate, 3- (3, 5-di-tert-butyl-4-hydroxyphenyl) acrylic acid and the like in the same proportions, with the rest being the same as in example 1.
Example 9
The procedure of example 8 was followed except that the modified slow-release odor-free microcapsules, the auxiliary odor-free agent and 1-hydroxyethyl-carboxymethyl-alkylimidazoline were used in a mass ratio of 3:3:2.
Example 10
The procedure of example 8 was followed except that the modified slow-release odor-free microcapsules, the auxiliary odor-free agent and 1-hydroxyethyl-carboxymethyl-alkylimidazoline were used in a mass ratio of 1:1:6.
Comparative example 1
S1: mixing cinnamaldehyde, citral, ethyl benzoate, geranyl acetate, chun, geraniol, alpha-terpinene and the like in a mass ratio, and stirring at a rotation speed of 400rpm for 30min at 50 ℃ to prepare a deodorant mixed solution;
S2, mixing auxiliary deodorant active components of N, N-diethyl-4-aminobenzaldehyde, 4' -methylenebis (N-phenylmaleimide), beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid isooctyl ester and 3, 5-di-tert-butyl-4-hydroxybenzoic acid in equal proportions, dispersing the mixture in 1-hydroxyethyl-carboxymethyl-alkyl imidazoline, adding the deodorant mixed solution prepared in S1 after all solids are dissolved, and continuously stirring for 1h to prepare the deodorant asphalt additive, wherein the mass ratio of the deodorant mixed solution to the auxiliary deodorant to the 1-hydroxyethyl-carboxymethyl-alkyl imidazoline is 0.5:1:2;
further, 100 parts of matrix asphalt is heated to 143 ℃,7 parts of odor-free asphalt additive is added at a rotation speed of 500rpm, and the odor-free asphalt is obtained after stirring for 2 hours.
Comparative example 2
S1: mixing cinnamaldehyde, citral, ethyl benzoate, geranyl acetate, chun, geraniol, alpha-terpinene and the like in proportion, and stirring at a rotation speed of 400rpm for 30min at 50 ℃ to obtain a core material mixed solution;
S2: adding cetyl trimethyl ammonium bromide and distilled water into the core material mixed solution, and continuously stirring at the speed of 800rpm for 4 hours at the temperature of 50 ℃ to form uniform emulsion, wherein the mass ratio of the core material mixed solution to the cetyl trimethyl ammonium bromide to the distilled water is 5:1:34;
s3: stirring ethyl orthosilicate, distilled water and ethanol at 50 ℃ at 400rpm for 4 hours to obtain sol, wherein the mass ratio of the ethyl orthosilicate to the distilled water to the ethanol is 1:1:2;
S4: dripping the prepared sol into the emulsion prepared in the step S2, wherein the mass ratio of the sol to the core material mixed solution is 4:1, dripping ammonia water to adjust the pH=9 of the system, stirring at 400rpm for 3 hours at 50 ℃, then closing stirring, maintaining the temperature at 50 ℃ for aging for 12 hours, and centrifuging and freeze-drying to obtain the slow-release odor-removing microcapsule;
S5: adding the slow-release odor-removing microcapsule prepared in the step S4 into deionized water, regulating the pH=10 by using ammonia water, then adding gamma-aminopropyl triethoxysilane, stirring for 2 hours at the temperature of 70 ℃ and the rotating speed of 200rpm, washing, filtering and freeze-drying after stirring is finished to obtain a modified slow-release odor-removing microcapsule, wherein the whole reaction process is carried out under the protection of nitrogen, and the mass ratio of the slow-release odor-removing microcapsule to the gamma-aminopropyl triethoxysilane to the deionized water is 2:1:30;
s6, stirring and mixing the dispersant 1-hydroxyethyl-carboxymethyl-alkyl imidazoline and the modified slow-release odor-removing microcapsule prepared by S5 at the normal temperature at the rotating speed of 400rpm for 1h to prepare the odor-removing asphalt additive, wherein the mass ratio of the modified slow-release odor-removing microcapsule to the 1-hydroxyethyl-carboxymethyl-alkyl imidazoline is 1:2;
further, 100 parts of matrix asphalt is heated to 143 ℃,6 parts of odor-free asphalt additive is added at a rotation speed of 500rpm, and the odor-free asphalt is obtained after stirring for 2 hours.
Comparative example 3
S1: mixing cinnamaldehyde, citral, ethyl benzoate, geranyl acetate, chun, geraniol, alpha-terpinene and the like in proportion, and stirring at a rotation speed of 400rpm for 30min at 50 ℃ to obtain a core material mixed solution;
S2: adding cetyl trimethyl ammonium bromide and distilled water into the core material mixed solution, and continuously stirring at the speed of 800rpm for 4 hours at the temperature of 50 ℃ to form uniform emulsion, wherein the mass ratio of the core material mixed solution to the cetyl trimethyl ammonium bromide to the distilled water is 5:1:34;
s3: stirring ethyl orthosilicate, distilled water and ethanol at 50 ℃ at 400rpm for 4 hours to obtain sol, wherein the mass ratio of the ethyl orthosilicate to the distilled water to the ethanol is 1:1:2;
S4: dripping the prepared sol into the emulsion prepared in the step S2, wherein the mass ratio of the sol to the core material mixed solution is 4:1, dripping ammonia water to adjust the pH=9 of the system, stirring at 400rpm for 3 hours at 50 ℃, then closing stirring, maintaining the temperature at 50 ℃ for aging for 12 hours, and centrifuging and freeze-drying to obtain the slow-release odor-removing microcapsule;
s5, mixing auxiliary deodorant active components of N, N-diethyl-4-aminobenzaldehyde, 4' -methylenebis (N-phenylmaleimide), beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid isooctyl ester and 3, 5-di-tert-butyl-4-hydroxybenzoic acid in equal proportions, dispersing the mixture in 1-hydroxyethyl-carboxymethyl-alkyl imidazoline, stirring and mixing the mixture at normal temperature at a rotating speed of 400rpm, adding the slow-release deodorant microcapsule prepared by S4 after the solid is completely dissolved, and continuing stirring for 1h to prepare the long-acting deodorant asphalt additive, wherein the mass ratio of the slow-release deodorant microcapsule to the auxiliary deodorant to the 1-hydroxyethyl-carboxymethyl-alkyl imidazoline is 1:1:2;
100 parts of matrix asphalt is heated to 143 ℃, 8 parts of odor-free asphalt additive is added at the rotation speed of 500rpm, and the odor-free asphalt is obtained after stirring for 2 hours.
Comparative example 4:
S1: mixing cinnamaldehyde, citral, ethyl benzoate, geranyl acetate, chun, geraniol, alpha-terpinene and the like in proportion, and stirring at a rotation speed of 400rpm for 30min at 50 ℃ to obtain a core material mixed solution;
S2: adding cetyl trimethyl ammonium bromide and distilled water into the core material mixed solution, and continuously stirring at the speed of 800rpm for 4 hours at the temperature of 50 ℃ to form uniform emulsion, wherein the mass ratio of the core material mixed solution to the cetyl trimethyl ammonium bromide to the distilled water is 5:1:34;
s3: stirring ethyl orthosilicate, distilled water and ethanol at 50 ℃ at 400rpm for 4 hours to obtain sol, wherein the mass ratio of the ethyl orthosilicate to the distilled water to the ethanol is 1:1:2;
S4: dripping the prepared sol into the emulsion prepared in the step S2, wherein the mass ratio of the sol to the core material mixed solution is 4:1, dripping ammonia water to adjust the pH=9 of the system, stirring at 400rpm for 3 hours at 50 ℃, then closing stirring, maintaining the temperature at 50 ℃ for aging for 12 hours, and centrifuging and freeze-drying to obtain the slow-release odor-removing microcapsule;
S5: adding the slow-release odor-removing microcapsule prepared in the step S4 into deionized water, regulating the pH=10 by using ammonia water, then adding gamma-aminopropyl triethoxysilane, stirring for 2 hours at the temperature of 70 ℃ and the rotating speed of 200rpm, washing, filtering and freeze-drying after stirring is finished to obtain a modified slow-release odor-removing microcapsule, wherein the whole reaction process is carried out under the protection of nitrogen, and the mass ratio of the slow-release odor-removing microcapsule to the gamma-aminopropyl triethoxysilane to the deionized water is 2:1:30;
S6, mixing auxiliary odor removing agents prepared by mixing N, N-diethyl-4-aminobenzaldehyde, 4' -methylenebis (N-phenylmaleimide), isooctyl beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate, 3, 5-di-tert-butyl-4-hydroxybenzoic acid and the like in a certain proportion with modified slow-release odor removing microcapsules to prepare an odor removing asphalt additive, wherein the mass ratio of the modified slow-release odor removing microcapsules to the auxiliary odor removing agents is 1:1;
Further, 100 parts of matrix asphalt is heated to 143 ℃,4 parts of odor-free asphalt additive is added at a rotation speed of 500rpm, and the odor-free asphalt is obtained after stirring for 2 hours.
Test case
Sulfide is the main reason for causing the asphalt fume to have pungent odor, the odor-free asphalt is prepared by adopting medium petrochemical Donghai brand No. 70 grade A asphalt, the examples 1-10 and the comparative examples 1-4 are subjected to thermal storage at 143 ℃ for 0 days, 7 days and 30 days, then the equal mass of the stored asphalt sample is transferred into a closed container, the fume enrichment is carried out at 163 ℃ for 4 hours, the gas in the closed container is taken after the enrichment is completed, and the sulfide content in the gas is tested by using gas chromatography, so that the obtained data are shown in the following table 1.
Table 1 gas chromatography sulfide test data
Conventional performance of asphalt was tested and the data obtained are shown in table 2 below;
table 2 asphalt conventional performance test data
。
Claims (25)
1. The odor-free asphalt additive is characterized by comprising the following components in parts by weight:
1-5 parts of auxiliary odor removing agent;
1-5 parts of modified slow-release odor-removing microcapsule;
1-10 parts of dispersing agent;
The mass ratio of the auxiliary odor removing agent to the modified slow-release odor removing microcapsule is 1:1;
The auxiliary odor removing agent is one or more selected from solid aldehydes with the boiling point of more than 250 ℃, amide compounds with the boiling point of more than 250 ℃ and antioxidants with the boiling point of more than 300 ℃;
the modified slow-release odor-removing microcapsule comprises a shell material and a core material, wherein the shell material is silicon dioxide, and the core material is one or more selected from aldehydes, esters, alcohols and terpenes.
2. A odorless bitumen additive as claimed in claim 1, wherein: the solid aldehyde with the boiling point of more than 250 ℃ is selected from one or more of N, N-diethyl-4-amino benzaldehyde, 3-methoxy-4-hydroxy benzaldehyde and 3, 4-methylenedioxy benzaldehyde.
3. A odorless bitumen additive as claimed in claim 1, wherein: the amide compound with the boiling point of more than 250 ℃ is selected from one or more of 4,4' -methylenebis (N-phenylmaleimide), N.N-diethyl maleimide, N-phenylmaleimide, 6- (maleimido) caproic acid succinimidyl ester, tri (2-maleimidoethyl) amine and N- (2-hydroxyethyl) maleimide.
4. A odorless bitumen additive as claimed in claim 1, wherein: the antioxidant with the boiling point higher than 300 ℃ is an ester antioxidant and/or a carboxylic acid antioxidant.
5. The odor elimination asphalt additive of claim 4, wherein: the ester antioxidant is selected from one or more of n-stearyl beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate, isooctyl beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate and pentaerythritol tetra [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate ].
6. A odorless bitumen additive as claimed in claim 1, wherein: the carboxylic acid antioxidant is selected from one or more of 3, 5-di-tert-butyl-4-hydroxybenzoic acid, 3- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid, 3- (3, 5-di-tert-butyl-4-hydroxyphenyl) acrylic acid, 3- (3, 5-dimethyl-4-hydroxyphenyl) acrylic acid, 3- (3, 5-dimethoxy-4-hydroxyphenyl) acrylic acid and 3- (3-methoxy-4-hydroxyphenyl) acrylic acid.
7. A odorless bitumen additive as claimed in claim 1, wherein: in the modified slow-release odor-removing microcapsule, aldehydes are selected from aromatic aldehydes with a boiling point of more than 230 ℃ and/or terpene aldehydes with a boiling point of more than 170 ℃; the aromatic aldehyde with the boiling point of more than 230 ℃ is preferably one or more of cinnamaldehyde, p-methoxybenzaldehyde and 2-methyl-3- (3, 4-methylenedioxyphenyl) propanal; the terpene aldehyde with the boiling point of more than 170 ℃ is preferably one or more of citral, citronellal and hydroxycitronellal.
8. A odorless bitumen additive as claimed in claim 1, wherein: in the modified slow-release odor-removing microcapsule, the esters are selected from benzoate with a boiling point of more than 210 ℃ and/or terpene alcohol ester with a boiling point of more than 190 ℃; the benzoate with the boiling point of more than 210 ℃ is preferably one or more of ethyl benzoate, isobutyl benzoate, isoamyl benzoate and benzyl benzoate; the terpene alcohol ester with the boiling point of more than 190 ℃ is preferably one or more of geranyl acetate, linalyl isobutyrate, citronellyl acetate or citronellyl isobutyrate.
9. A odorless bitumen additive as claimed in claim 1, wherein: in the modified slow-release odor-removing microcapsule, the alcohol is selected from aromatic alcohol with a boiling point of more than 200 ℃ and/or terpene alcohol with a boiling point of more than 160 ℃; the aromatic alcohol with the boiling point of more than 200 ℃ is preferably one or more of Chun and beta-phenethyl alcohol; the terpene alcohol with boiling point higher than 160 ℃ is preferably one or more of geraniol, nerol, ionol and myrcenol.
10. A odorless bitumen additive as claimed in claim 1, wherein: in the modified slow-release odor-removing microcapsule, the terpene is cyclic terpene with a boiling point of more than 150 ℃, and is preferably one or more of alpha-terpinene, alpha-phellandrene, alpha-pinene, beta-caryophyllene and thuja alkene.
11. A odorless bitumen additive as claimed in claim 1, wherein: the mass ratio of the shell material to the core material of the modified slow-release odor-removing microcapsule is 1: (0.5-2).
12. A odorless bitumen additive as claimed in claim 1, wherein: the modified slow-release odor-removing microcapsule has a nano structure and the particle size is 300-800nm.
13. A odorless bitumen additive as claimed in claim 1, wherein: the preparation method of the modified slow-release odor-removing microcapsule comprises the following steps:
S1: mixing the core materials in equal mass ratio, adding cetyl trimethyl ammonium bromide and distilled water, and stirring for a period of time to obtain uniform emulsion;
s2: mixing ethyl orthosilicate, distilled water and ethanol, and stirring for a period of time to obtain sol;
S3: dropwise adding the sol prepared in the step S2 into the emulsion prepared in the step S1, simultaneously dropwise adding ammonia water to adjust the pH value of the system to 9-10, stirring for a period of time until the reaction system is grey, then closing stirring, aging for a period of time at a constant temperature, filtering, washing and freeze-drying bottom solid powder to obtain the slow-release odor-removing microcapsule;
s4: adding the slow-release odor-removing microcapsule prepared in the step S3 into deionized water, regulating the pH value of the system to 9-10 by using ammonia water, then adding gamma-aminopropyl triethoxysilane, stirring for a period of time, washing, filtering and freeze-drying solid powder in the system to obtain the modified slow-release odor-removing microcapsule, wherein the whole reaction process is carried out under the protection of nitrogen.
14. The method according to claim 13, wherein: and step S1, wherein the stirring temperature is 40-65 ℃, the stirring rotating speed is 600-800rpm, and the stirring time is 2-4h.
15. The method according to claim 13, wherein: the mass ratio of the distilled water to the core material mixed liquid in the step S1 is (5-10) 1, and the mass ratio of the emulsifier to the core material mixed liquid is (0.1-0.5) 1.
16. The method according to claim 13, wherein: the stirring time in the step S2 is 3-5h, and the stirring rotating speed is 300-600rpm; the stirring temperature is 40-60 ℃.
17. The method according to claim 13, wherein: the mass ratio of the ethyl orthosilicate to the distilled water in the step S2 is 1:0.5-2, the mass ratio of distilled water to ethanol is 1:0.5-2.
18. The method according to claim 13, wherein: and step S3, stirring at 40-65 ℃ at 300-600rpm for 2-4h.
19. The method according to claim 13, wherein: the mass ratio of the sol to the emulsion in the step S3 is 1: (0.1-10).
20. The method according to claim 13, wherein: the stirring time in the step S4 is 2-4h, and the stirring rotating speed is 100-200rpm; the stirring temperature is 60-80 ℃.
21. The method according to claim 13, wherein: the mass ratio of the slow-release odor-removing microcapsule to the gamma-aminopropyl triethoxysilane in the step S4 is (2-5): 1.
22. A odorless bitumen additive as claimed in claim 1, wherein: the dispersing agent is dodecyl dimethyl betaine and/or 1-hydroxyethyl-carboxymethyl-alkyl imidazoline.
23. A method for preparing the odor-free asphalt additive of any one of claims 1-12, comprising the following steps: mixing the auxiliary odor removing agent and the dispersing agent, adding the modified slow-release odor removing microcapsule after the auxiliary odor removing agent is completely dissolved, and uniformly mixing to obtain the odor removing asphalt additive.
24. An odor-free asphalt composition comprising the following components by weight: 100-500 parts of matrix asphalt; 5-30 parts of the odor-free asphalt additive of any one of claims 1-12.
25. A odorless bitumen as claimed in claim 24, wherein: the matrix asphalt is one of No. 50, no. 70 and No. 90 road asphalt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211301416.8A CN117965034A (en) | 2022-10-24 | 2022-10-24 | Odor-free asphalt additive, odor-free asphalt and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211301416.8A CN117965034A (en) | 2022-10-24 | 2022-10-24 | Odor-free asphalt additive, odor-free asphalt and preparation method thereof |
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