CN117654118A - Mineral oil defoamer and preparation method thereof - Google Patents
Mineral oil defoamer and preparation method thereof Download PDFInfo
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- CN117654118A CN117654118A CN202311812691.0A CN202311812691A CN117654118A CN 117654118 A CN117654118 A CN 117654118A CN 202311812691 A CN202311812691 A CN 202311812691A CN 117654118 A CN117654118 A CN 117654118A
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- Prior art keywords
- mineral oil
- defoamer
- oil
- fatty acid
- oil defoamer
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- 239000002480 mineral oil Substances 0.000 title claims abstract description 60
- 235000010446 mineral oil Nutrition 0.000 title claims abstract description 60
- 239000013530 defoamer Substances 0.000 title claims abstract description 49
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- -1 polysiloxane Polymers 0.000 claims abstract description 40
- 229920001296 polysiloxane Polymers 0.000 claims abstract description 32
- 239000000194 fatty acid Substances 0.000 claims abstract description 29
- 229920002545 silicone oil Polymers 0.000 claims abstract description 27
- 235000014113 dietary fatty acids Nutrition 0.000 claims abstract description 26
- 229930195729 fatty acid Natural products 0.000 claims abstract description 26
- 150000004665 fatty acids Chemical class 0.000 claims abstract description 26
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 22
- 239000010703 silicon Substances 0.000 claims abstract description 22
- 239000004721 Polyphenylene oxide Substances 0.000 claims abstract description 15
- 229920000570 polyether Polymers 0.000 claims abstract description 15
- 238000013329 compounding Methods 0.000 claims abstract description 14
- 230000002209 hydrophobic effect Effects 0.000 claims abstract description 13
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000006229 carbon black Substances 0.000 claims abstract description 12
- 230000001804 emulsifying effect Effects 0.000 claims abstract description 11
- 229910052751 metal Inorganic materials 0.000 claims abstract description 10
- 239000002184 metal Substances 0.000 claims abstract description 10
- 239000000344 soap Substances 0.000 claims abstract description 10
- 239000002994 raw material Substances 0.000 claims abstract description 9
- 230000001954 sterilising effect Effects 0.000 claims abstract description 6
- 238000003756 stirring Methods 0.000 claims description 21
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 18
- 239000003921 oil Substances 0.000 claims description 16
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 16
- 239000002518 antifoaming agent Substances 0.000 claims description 14
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 12
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 10
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 8
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 8
- 239000004593 Epoxy Substances 0.000 claims description 8
- 229920001214 Polysorbate 60 Polymers 0.000 claims description 8
- IMNIMPAHZVJRPE-UHFFFAOYSA-N triethylenediamine Chemical compound C1CN2CCN1CC2 IMNIMPAHZVJRPE-UHFFFAOYSA-N 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 7
- ZORQXIQZAOLNGE-UHFFFAOYSA-N 1,1-difluorocyclohexane Chemical compound FC1(F)CCCCC1 ZORQXIQZAOLNGE-UHFFFAOYSA-N 0.000 claims description 6
- 235000021355 Stearic acid Nutrition 0.000 claims description 6
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 claims description 6
- 239000003054 catalyst Substances 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 6
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 claims description 6
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 6
- 239000001593 sorbitan monooleate Substances 0.000 claims description 6
- 235000011069 sorbitan monooleate Nutrition 0.000 claims description 6
- 229940035049 sorbitan monooleate Drugs 0.000 claims description 6
- 239000008117 stearic acid Substances 0.000 claims description 6
- 239000003945 anionic surfactant Substances 0.000 claims description 5
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 claims description 5
- 239000004147 Sorbitan trioleate Substances 0.000 claims description 4
- PRXRUNOAOLTIEF-ADSICKODSA-N Sorbitan trioleate Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OC[C@@H](OC(=O)CCCCCCC\C=C/CCCCCCCC)[C@H]1OC[C@H](O)[C@H]1OC(=O)CCCCCCC\C=C/CCCCCCCC PRXRUNOAOLTIEF-ADSICKODSA-N 0.000 claims description 4
- POULHZVOKOAJMA-UHFFFAOYSA-N dodecanoic acid Chemical compound CCCCCCCCCCCC(O)=O POULHZVOKOAJMA-UHFFFAOYSA-N 0.000 claims description 4
- 150000002191 fatty alcohols Chemical class 0.000 claims description 4
- IPCSVZSSVZVIGE-UHFFFAOYSA-N hexadecanoic acid Chemical compound CCCCCCCCCCCCCCCC(O)=O IPCSVZSSVZVIGE-UHFFFAOYSA-N 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- 239000002736 nonionic surfactant Substances 0.000 claims description 4
- 235000010482 polyoxyethylene sorbitan monooleate Nutrition 0.000 claims description 4
- 229920000053 polysorbate 80 Polymers 0.000 claims description 4
- 235000019337 sorbitan trioleate Nutrition 0.000 claims description 4
- 229960000391 sorbitan trioleate Drugs 0.000 claims description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 3
- 239000001257 hydrogen Substances 0.000 claims description 3
- 229910052739 hydrogen Inorganic materials 0.000 claims description 3
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 claims description 2
- WZCQRUWWHSTZEM-UHFFFAOYSA-N 1,3-phenylenediamine Chemical compound NC1=CC=CC(N)=C1 WZCQRUWWHSTZEM-UHFFFAOYSA-N 0.000 claims description 2
- CBCKQZAAMUWICA-UHFFFAOYSA-N 1,4-phenylenediamine Chemical compound NC1=CC=C(N)C=C1 CBCKQZAAMUWICA-UHFFFAOYSA-N 0.000 claims description 2
- JKTAIYGNOFSMCE-UHFFFAOYSA-N 2,3-di(nonyl)phenol Chemical compound CCCCCCCCCC1=CC=CC(O)=C1CCCCCCCCC JKTAIYGNOFSMCE-UHFFFAOYSA-N 0.000 claims description 2
- CYEJMVLDXAUOPN-UHFFFAOYSA-N 2-dodecylphenol Chemical compound CCCCCCCCCCCCC1=CC=CC=C1O CYEJMVLDXAUOPN-UHFFFAOYSA-N 0.000 claims description 2
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 claims description 2
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 claims description 2
- SNRUBQQJIBEYMU-UHFFFAOYSA-N Dodecane Natural products CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 claims description 2
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 claims description 2
- 239000005639 Lauric acid Substances 0.000 claims description 2
- YNAVUWVOSKDBBP-UHFFFAOYSA-N Morpholine Natural products C1COCCN1 YNAVUWVOSKDBBP-UHFFFAOYSA-N 0.000 claims description 2
- 239000005642 Oleic acid Substances 0.000 claims description 2
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 claims description 2
- 229910019142 PO4 Inorganic materials 0.000 claims description 2
- 235000021314 Palmitic acid Nutrition 0.000 claims description 2
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 2
- HVUMOYIDDBPOLL-XWVZOOPGSA-N Sorbitan monostearate Chemical compound CCCCCCCCCCCCCCCCCC(=O)OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O HVUMOYIDDBPOLL-XWVZOOPGSA-N 0.000 claims description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 2
- IJCWFDPJFXGQBN-RYNSOKOISA-N [(2R)-2-[(2R,3R,4S)-4-hydroxy-3-octadecanoyloxyoxolan-2-yl]-2-octadecanoyloxyethyl] octadecanoate Chemical compound CCCCCCCCCCCCCCCCCC(=O)OC[C@@H](OC(=O)CCCCCCCCCCCCCCCCC)[C@H]1OC[C@H](O)[C@H]1OC(=O)CCCCCCCCCCCCCCCCC IJCWFDPJFXGQBN-RYNSOKOISA-N 0.000 claims description 2
- 150000004996 alkyl benzenes Chemical class 0.000 claims description 2
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 claims description 2
- 159000000007 calcium salts Chemical class 0.000 claims description 2
- 150000007942 carboxylates Chemical class 0.000 claims description 2
- 235000019438 castor oil Nutrition 0.000 claims description 2
- 239000004359 castor oil Substances 0.000 claims description 2
- 239000002283 diesel fuel Substances 0.000 claims description 2
- 239000007789 gas Substances 0.000 claims description 2
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 claims description 2
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 claims description 2
- 239000003350 kerosene Substances 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 229940018564 m-phenylenediamine Drugs 0.000 claims description 2
- 159000000003 magnesium salts Chemical class 0.000 claims description 2
- 239000010705 motor oil Substances 0.000 claims description 2
- WQEPLUUGTLDZJY-UHFFFAOYSA-N n-Pentadecanoic acid Natural products CCCCCCCCCCCCCCC(O)=O WQEPLUUGTLDZJY-UHFFFAOYSA-N 0.000 claims description 2
- 229920000847 nonoxynol Polymers 0.000 claims description 2
- 229920002113 octoxynol Polymers 0.000 claims description 2
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 claims description 2
- 239000010452 phosphate Substances 0.000 claims description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 2
- 239000000244 polyoxyethylene sorbitan monooleate Substances 0.000 claims description 2
- 239000001816 polyoxyethylene sorbitan tristearate Substances 0.000 claims description 2
- 235000010988 polyoxyethylene sorbitan tristearate Nutrition 0.000 claims description 2
- 239000011734 sodium Substances 0.000 claims description 2
- 229910052708 sodium Inorganic materials 0.000 claims description 2
- ZIWRUEGECALFST-UHFFFAOYSA-M sodium 4-(4-dodecoxysulfonylphenoxy)benzenesulfonate Chemical compound [Na+].CCCCCCCCCCCCOS(=O)(=O)c1ccc(Oc2ccc(cc2)S([O-])(=O)=O)cc1 ZIWRUEGECALFST-UHFFFAOYSA-M 0.000 claims description 2
- HEBRGEBJCIKEKX-UHFFFAOYSA-M sodium;2-hexadecylbenzenesulfonate Chemical compound [Na+].CCCCCCCCCCCCCCCCC1=CC=CC=C1S([O-])(=O)=O HEBRGEBJCIKEKX-UHFFFAOYSA-M 0.000 claims description 2
- DAJSVUQLFFJUSX-UHFFFAOYSA-M sodium;dodecane-1-sulfonate Chemical compound [Na+].CCCCCCCCCCCCS([O-])(=O)=O DAJSVUQLFFJUSX-UHFFFAOYSA-M 0.000 claims description 2
- 239000001587 sorbitan monostearate Substances 0.000 claims description 2
- 235000011076 sorbitan monostearate Nutrition 0.000 claims description 2
- 229940035048 sorbitan monostearate Drugs 0.000 claims description 2
- 239000001589 sorbitan tristearate Substances 0.000 claims description 2
- 235000011078 sorbitan tristearate Nutrition 0.000 claims description 2
- 229960004129 sorbitan tristearate Drugs 0.000 claims description 2
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims description 2
- 150000003751 zinc Chemical class 0.000 claims description 2
- 229920005646 polycarboxylate Polymers 0.000 abstract description 11
- 239000000463 material Substances 0.000 abstract description 6
- 239000008030 superplasticizer Substances 0.000 abstract description 4
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 abstract description 3
- 239000011737 fluorine Substances 0.000 abstract description 3
- 229910052731 fluorine Inorganic materials 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 2
- 229910052782 aluminium Inorganic materials 0.000 description 20
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 17
- 230000000052 comparative effect Effects 0.000 description 16
- 239000003638 chemical reducing agent Substances 0.000 description 15
- 239000004567 concrete Substances 0.000 description 14
- 239000006260 foam Substances 0.000 description 12
- 230000005764 inhibitory process Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 5
- 239000002253 acid Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 238000011156 evaluation Methods 0.000 description 4
- CEGOLXSVJUTHNZ-UHFFFAOYSA-K aluminium tristearate Chemical compound [Al+3].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CEGOLXSVJUTHNZ-UHFFFAOYSA-K 0.000 description 3
- 239000007799 cork Substances 0.000 description 3
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- NWGKJDSIEKMTRX-AAZCQSIUSA-N Sorbitan monooleate Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O NWGKJDSIEKMTRX-AAZCQSIUSA-N 0.000 description 2
- HVUMOYIDDBPOLL-XGKPLOKHSA-N [2-[(2r,3r,4s)-3,4-dihydroxyoxolan-2-yl]-2-hydroxyethyl] octadecanoate Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCC(O)[C@H]1OC[C@H](O)[C@H]1O HVUMOYIDDBPOLL-XGKPLOKHSA-N 0.000 description 2
- BBMXVTPBLPQMAE-UHFFFAOYSA-K aluminum;docosanoate Chemical compound [Al+3].CCCCCCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCCCCCC([O-])=O BBMXVTPBLPQMAE-UHFFFAOYSA-K 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- PZWDHVKNXVLHOV-UHFFFAOYSA-K di(hexadecanoyloxy)alumanyl hexadecanoate Chemical compound [Al+3].CCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCC([O-])=O PZWDHVKNXVLHOV-UHFFFAOYSA-K 0.000 description 2
- AMTWCFIAVKBGOD-UHFFFAOYSA-N dioxosilane;methoxy-dimethyl-trimethylsilyloxysilane Chemical compound O=[Si]=O.CO[Si](C)(C)O[Si](C)(C)C AMTWCFIAVKBGOD-UHFFFAOYSA-N 0.000 description 2
- PTCGDEVVHUXTMP-UHFFFAOYSA-N flutolanil Chemical compound CC(C)OC1=CC=CC(NC(=O)C=2C(=CC=CC=2)C(F)(F)F)=C1 PTCGDEVVHUXTMP-UHFFFAOYSA-N 0.000 description 2
- VKOBVWXKNCXXDE-UHFFFAOYSA-N icosanoic acid Chemical compound CCCCCCCCCCCCCCCCCCCC(O)=O VKOBVWXKNCXXDE-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229940083037 simethicone Drugs 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 241000201323 Kigelia Species 0.000 description 1
- 229920001732 Lignosulfonate Polymers 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- LZFHWXVTSYAFQD-UHFFFAOYSA-K aluminum nonadecanoate Chemical compound [Al+3].CCCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCCC([O-])=O LZFHWXVTSYAFQD-UHFFFAOYSA-K 0.000 description 1
- 229940063655 aluminum stearate Drugs 0.000 description 1
- IVBDXIGKGSOAPT-UHFFFAOYSA-K aluminum;heptadecanoate Chemical compound [Al+3].CCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCC([O-])=O IVBDXIGKGSOAPT-UHFFFAOYSA-K 0.000 description 1
- SMYVRNHZWXIWRM-UHFFFAOYSA-K aluminum;pentadecanoate Chemical compound [Al+3].CCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCC([O-])=O SMYVRNHZWXIWRM-UHFFFAOYSA-K 0.000 description 1
- HSMXEPWDIJUMSS-UHFFFAOYSA-K aluminum;tetradecanoate Chemical compound [Al+3].CCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCC([O-])=O HSMXEPWDIJUMSS-UHFFFAOYSA-K 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical class [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- WPCPXPTZTOMGRF-UHFFFAOYSA-K di(butanoyloxy)alumanyl butanoate Chemical compound [Al+3].CCCC([O-])=O.CCCC([O-])=O.CCCC([O-])=O WPCPXPTZTOMGRF-UHFFFAOYSA-K 0.000 description 1
- NNQLQYSKGSNGID-UHFFFAOYSA-K di(tetradec-2-enoyloxy)alumanyl tetradec-2-enoate Chemical compound C(C=CCCCCCCCCCCC)(=O)[O-].[Al+3].C(C=CCCCCCCCCCCC)(=O)[O-].C(C=CCCCCCCCCCCC)(=O)[O-] NNQLQYSKGSNGID-UHFFFAOYSA-K 0.000 description 1
- LLBGQAOEFSFBCV-UHFFFAOYSA-K di(triacontanoyloxy)alumanyl triacontanoate Chemical compound CCCCCCCCCCCCCCCCCCCCCCCCCCCCCC(=O)O[Al](OC(=O)CCCCCCCCCCCCCCCCCCCCCCCCCCCCC)OC(=O)CCCCCCCCCCCCCCCCCCCCCCCCCCCCC LLBGQAOEFSFBCV-UHFFFAOYSA-K 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000011372 high-strength concrete Substances 0.000 description 1
- 229940040452 linolenate Drugs 0.000 description 1
- DTOSIQBPPRVQHS-PDBXOOCHSA-M linolenate Chemical compound CC\C=C/C\C=C/C\C=C/CCCCCCCC([O-])=O DTOSIQBPPRVQHS-PDBXOOCHSA-M 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012452 mother liquor Substances 0.000 description 1
- DGVVJWXRCWCCOD-UHFFFAOYSA-N naphthalene;hydrate Chemical compound O.C1=CC=CC2=CC=CC=C21 DGVVJWXRCWCCOD-UHFFFAOYSA-N 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000011378 shotcrete Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Landscapes
- Degasification And Air Bubble Elimination (AREA)
Abstract
The invention relates to the technical field of chemical materials, in particular to a mineral oil defoamer and a preparation method thereof, wherein the mineral oil defoamer is prepared from the following raw materials in percentage by mass by taking the total mass of the mineral oil defoamer as a reference: 11-21% of silicon paste, 3-6% of fatty acid metal soap, 3-8% of emulsifying component, 0.1-4% of auxiliary sterilizing component and the balance of mineral oil; the silicon paste is prepared from modified polysiloxane, silicone oil and hydrophobic white carbon black according to the mass ratio of 7.5-12:3-5: 0.5-4. According to the mineral oil defoamer provided by the invention, the silicone paste can be formed by compounding modified polysiloxane and silicone oil, and the fluorine element is introduced into the mineral oil defoamer and meanwhile the polyether chain segment is grafted, so that the surface tension is effectively reduced, the compounding compatibility of the mineral oil defoamer and the polycarboxylate superplasticizer is improved, the defoaming performance is good, the application range is wide, and the important practical application value is realized in improving the working performance.
Description
Technical Field
The invention relates to the technical field of chemical materials, in particular to a mineral oil defoamer and a preparation method thereof.
Background
With the high-speed development of national economy in China, a large number of civil engineering construction promote the development of the building industry in China towards high efficiency, high performance and sustainable direction. Concrete is used as an important civil engineering material, and the performance of the concrete has a profound effect on the progress of construction technology. The use of various water reducers can not only influence the workability of the concrete in a new mixing stage, but also improve the structure of the hardened concrete body from microscopic and submicroscopic levels, so that the concrete can be modified by means of adding the water reducers, and the requirements on the concrete construction performance, mechanical performance, durability and the like are met. The water reducing agent can enable the manufacture and construction of special concrete, such as high-fluidity concrete, high-strength concrete, underwater concrete, sprayed concrete and the like. The polycarboxylate water reducer gradually replaces high-efficiency water reducers such as lignosulfonate water reducer, naphthalene water reducer and the like due to the unique advantages of designable molecular structure and performance, and becomes a main water reducer variety in the market.
The polycarboxylic acid water reducer is a concrete admixture capable of reducing the mixing water consumption under the condition of maintaining the slump of concrete basically unchanged, and is widely applied to concrete systems. In the use process of the polycarboxylate water reducer, bubbles are usually caused by physical stirring of production equipment, chemical reaction among various auxiliary agents and uneven proportion of reagents and water, and in addition, a large amount of bubbles are introduced into a cement-based material system due to stirring and some chemical reactions in the water adding stirring process during the use, and residual bubbles can influence the strength, durability and appearance quality of the hardened material, so that different amounts of defoamers are generally required to be added in the compounding process of the polycarboxylate water reducer so as to ensure the comprehensive performance of the polycarboxylate water reducer in the concrete.
Mineral oil defoamers are not only low in cost but also widely applied, and are widely focused by people. Simple mineral oil has light relative density, low viscosity, large consumption and high temperature resistance, but has unstable defoaming performance and limited defoaming performance. And by adding silicone oil, especially polyether modified polysiloxane component, the defoaming performance and the foam inhibition performance can be obviously improved. Mainly because the polyether segment has a hydrophilic function, the silicone oil segment has a hydrophobic function, and the polyether segment combines the advantages of strong organic silicon defoaming capability and good polyether foam inhibition effect, can be used as a high-efficiency defoaming synergist of a mineral oil defoaming agent, overcomes the defect that the defoaming agent containing silicone oil components is not suitable for being used in specific fields, and has wider application range.
Therefore, it is a technical problem to be solved by the person skilled in the art how to improve an antifoaming agent with mineral oil as carrier to improve the working performance of concrete in the later period.
Disclosure of Invention
In order to solve the technical problems in the background art, the invention provides a mineral oil defoamer, which is prepared from the following raw materials in percentage by mass by taking the total mass of the mineral oil defoamer as a reference: 11-21% of silicon paste, 3-6% of fatty acid metal soap, 3-8% of emulsifying component, 0.1-4% of auxiliary sterilizing component and the balance of mineral oil;
the silicon paste is prepared from modified polysiloxane, silicone oil and hydrophobic white carbon black according to the mass ratio of 7.5-12:3-5: 0.5-4.
Based on the technical scheme, the silicone oil is at least one of dimethyl silicone oil, hydrogen-containing silicone oil and hydroxyl silicone oil, and the viscosity is in the range of 500-2000cst.
Based on the technical proposal, the hydrophobic white carbon black is prepared by a gas phase method, and the specific surface area is 100-200m 2 /g。
Based on the technical scheme, the emulsifying component is formed by compounding more than two of nonionic surfactants and/or anionic surfactants with different HLB levels.
Based on the technical scheme, the nonionic surfactant is further selected from alkylphenol ethoxylates, fatty acid ethoxylates, fatty alcohol ethoxylates, sorbitan monostearate, sorbitan monooleate, sorbitan tristearate and sorbitan trioleate; at least one of polyoxyethylene sorbitan ether stearate, polyoxyethylene sorbitan monooleate, polyoxyethylene sorbitan tristearate, polyoxyethylene sorbitan trioleate and castor oil polyoxyethylene ether;
wherein the alkylphenol ethoxylates comprise at least one of nonylphenol ethoxylates, octylphenol ethoxylates, dodecylphenol ethoxylates and dinonylphenol ethoxylates;
the fatty acid polyoxyethylene ether comprises at least one of lauric acid polyoxyethylene ether, oleic acid polyoxyethylene ether, palmitic acid polyoxyethylene ether and stearic acid polyoxyethylene ether;
the anionic surfactant comprises one of carboxylate, sulfate, sulfonate and phosphate, and is specifically at least one selected from sodium dodecyl polyoxyethylene ether sulfate, sodium dodecyl benzene sulfonate, sodium dodecyl sulfonate, sodium hexadecyl benzene sulfonate, sodium dodecyl diphenyl ether disulfonate.
Based on the technical scheme, the auxiliary sterilizing component is formed by compounding one or more of fatty acid, fatty alcohol, wax and modified wax.
On the basis of the technical scheme, the fatty acid metal soap is formed by compounding one or more of magnesium salt, aluminum salt, calcium salt and zinc salt of fatty acid;
wherein fatty acid metal soap is preferably fatty acid aluminum; the fatty acid aluminum includes mono-fatty acid aluminum and di-fatty acid aluminum;
the mono fatty acid aluminum comprises at least one of aluminum butyrate, aluminum octoate, aluminum tetradecanoate, aluminum pentadecanoate, aluminum hexadecanoate, aluminum heptadecanoate, aluminum octadecanoate, aluminum nonadecanoate, aluminum eicosanoate, aluminum docosylate, aluminum triacontanoate, aluminum tetradecenoate, aluminum docosylate, and aluminum linolenate;
preferably aluminum octoate, aluminum hexadecanoate, aluminum octadecanoate, aluminum docosylate;
the aluminum bis-fatty acid includes at least one of aluminum dibutyrate, aluminum dioctanoate, aluminum ditetradecanoate, aluminum ditentadecanoate, aluminum ditetradecanoate, aluminum dioctadecanoate, aluminum ditetradecanoate, aluminum diticosanate, aluminum dithenate, aluminum ditriatriacontate, aluminum ditetradecanoate, aluminum dioctadecanoate, and aluminum dilactadecanoate;
preferably, when fatty acid metal soap is selected from fatty acid aluminum mono-and/or fatty acid aluminum di-, the fatty acid carbon number of fatty acid aluminum mono-and/or fatty acid aluminum di-is 4-32.
On the basis of the technical scheme, the mineral oil is one or more of white oil, kerosene, diesel oil, engine oil, liquid wax, alkylbenzene and naphthenic oil.
The invention provides a preparation method of the mineral oil defoamer, which comprises the following preparation steps:
preparation of modified polysiloxanes: controlling the temperature of the reactor to be 100-130 ℃, sequentially adding epoxy fluorosilicone oil, hydroxyl-containing polyether and a catalyst into the reactor, introducing nitrogen, continuously stirring for 2-4h, and separating and purifying to obtain modified polysiloxane; wherein the mass ratio of the epoxy fluorosilicone oil to the hydroxyl-containing polyether to the catalyst is 50-200:40-180:0.5-1;
preparing silicon paste: the temperature of the reactor is controlled to be 110-150 ℃, modified polysiloxane, silicone oil and hydrophobic white carbon black are added into the reactor, stirring is continued for 2-5h, and the mixture is cooled to room temperature to obtain silicon paste;
preparation of mineral oil defoamer: and controlling the temperature of the reactor to be 110-130 ℃, mixing the silicon paste, the fatty acid metal soap, the auxiliary sterilizing component and the mineral oil, stirring for 0.5-1.5h at 500-1000r/min, adding the emulsifying component, increasing the rotating speed to 1500-3000r/min, stirring for 0.5-1.5h, and cooling to room temperature to obtain the mineral oil defoaming agent.
Based on the technical scheme, further, the epoxy fluorosilicone oil has the structural formula:
the structural formula of the hydroxyl-containing polyether is as follows:
the modified polysiloxane has the structural formula:
wherein, the value of a is 0 to 45, the value of b is 5 to 60, the value of c is 5 to 60, the value of m is 10 to 50, the value of n is 10 to 50, R 1 is-S iO (CH) 3 ) 3 or-CH 2 -CH 2 -CH 2 -O-CH 2 -C 3 H 3 At least one of O.
Based on the technical scheme, the catalyst is at least one of triethylenediamine, N-alkyl morpholine, bis (2-methyl oxyethyl), ethylenediamine, triethylamine, m-phenylenediamine and p-phenylenediamine.
The mineral oil defoamer provided by the invention has the following technical effects:
according to the mineral oil defoaming agent, the prepared modified polysiloxane has fluorine-containing groups on the side chains, and is compounded with silicone oil and hydrophobic white carbon black to form the silicone paste, so that the surface tension of the mineral oil defoaming agent is effectively reduced, foam generation can be inhibited for a long time, and meanwhile, the foam inhibition performance of the mineral oil defoaming agent can be further effectively improved due to the inclusion of fatty acid metal soap and auxiliary components. The mineral oil modified polysiloxane of the invention has good compatibility with the polycarboxylate superplasticizer due to the hydrophilic polyether chain segment, and effectively improves the dispersibility of the defoaming active substances in the compounding process of the polycarboxylate superplasticizer.
In addition, the mineral oil defoamer prepared by the invention has the characteristics of high temperature resistance and acid and alkali resistance, is suitable for being used under severe conditions, and expands the application range of the mineral oil defoamer in the compounding process of the polycarboxylate water reducer.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions in the embodiments of the present invention will be clearly and completely described in the following in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The present invention provides the following examples and comparative examples:
example 1
This example provides a method for preparing a modified polysiloxane A1: the temperature of the reactor is controlled at 110 ℃, and epoxy fluorosilicone oil, hydroxyl-containing polyether and triethylenediamine are sequentially added into the reactor, wherein the mass ratio of the three raw materials is 70:110:0.5. Introducing nitrogen, continuously stirring for 3 hours, and separating and purifying to obtain the modified polysiloxane A1.
Example 2
This example provides another method for preparing modified polysiloxane A2: the temperature of the reactor is controlled at 120 ℃, and epoxy fluorosilicone oil, hydroxyl-containing polyether and triethylenediamine are sequentially added into the reactor, wherein the mass ratio of the three raw materials is 80:140:0.8. Introducing nitrogen, continuously stirring for 3 hours, and separating and purifying to obtain the modified polysiloxane A2.
Example 3
The embodiment provides a preparation method of a mineral oil defoamer, which comprises the following steps: the temperature of the reactor is controlled at 120 ℃, modified polysiloxane A1, dimethyl silicone oil, hydroxyl silicone oil and hydrophobic white carbon black are added into the reactor, and the mass ratio of the four raw materials is 40:16:4: and 5, continuously stirring for 2.5h, and cooling to room temperature to obtain the silicon paste.
The temperature of the reactor is controlled at 110 ℃, 16 parts of silicon paste, 6 parts of aluminum eicosanoate, 0.5 part of stearic acid and 71.5 parts of No. 26 white oil are mixed according to parts by weight, 500/min is stirred for 1h, 6 parts of emulsifying component (sorbitan monostearate (Span-60): polyoxyethylene sorbitan ether stearate (Tween-60) =5:1) is added, the rotating speed is increased to 2500/min, stirring is carried out for 1h, and the mixture is cooled to room temperature, thus obtaining the mineral oil defoamer.
Example 4
The embodiment provides a preparation method of a mineral oil defoamer, which comprises the following steps: the temperature of the reactor is controlled at 125 ℃, modified polysiloxane A1, dimethyl silicone oil, hydroxyl silicone oil and hydrophobic white carbon black are added into the reactor, and the mass ratio of the four raw materials is 48:14:2: and 9, continuously stirring for 2.5h, and cooling to room temperature to obtain the silicon paste.
The temperature of the reactor is controlled at 110 ℃, 14 parts of silicon paste, 4 parts of aluminum behenate, 1 part of stearic acid and 77 parts of No. 32 white oil are mixed according to parts by weight, 800/min is stirred for 1h, 4 parts of emulsifying component (sorbitan monooleate (Span-80): sorbitan monooleate polyoxyethylene ether (Tween-80) =5:1) is added, the rotating speed is increased to 3000/min, stirring is carried out for 1h, and the mixture is cooled to room temperature, thus obtaining the mineral oil defoamer.
Example 5
The embodiment provides a preparation method for preparing a mineral oil defoamer: the temperature of the reactor is controlled at 130 ℃, modified polysiloxane A2, dimethyl silicone oil, hydrogen-containing silicone oil and hydrophobic white carbon black are added into the reactor, and the mass ratio of the four raw materials is 44:9:3: and 5, continuously stirring for 2.5h, and cooling to room temperature to obtain the silicon paste.
The temperature of the reactor is controlled at 120 ℃, 18 parts of silicon paste, 4 parts of aluminum stearate, 0.5 part of stearic acid and 73 parts of No. 26 white oil are mixed according to parts by weight, 500/min is stirred for 1h, 4.5 parts of emulsifying component (sorbitan monostearate (Span-60): polyoxyethylene sorbitan ether stearate (Tween-60) =5:1) is added, the rotating speed is increased to 2500/min, stirring is carried out for 1h, and the mixture is cooled to room temperature, thus obtaining the mineral oil defoamer.
Example 6
The embodiment provides a preparation method for preparing a mineral oil defoamer: the temperature of the reactor is controlled at 140 ℃, modified polysiloxane A2, dimethyl silicone oil, hydroxyl silicone oil and hydrophobic white carbon black are added into the reactor, and the mass ratio of the four raw materials is 50:12:1:4, continuously stirring for 2.5h, and cooling to room temperature to obtain the silicon paste.
The temperature of the reactor is controlled at 120 ℃, 15 parts of silicon paste, 5 parts of aluminum behenate, 1 part of stearic acid and 75 parts of No. 32 white oil are mixed according to parts by weight, 1000/min is stirred for 1h, 4 parts of emulsifying component (sorbitan monooleate (Span-80): sorbitan monooleate polyoxyethylene ether (Tween-80) =5:1) is added, the rotating speed is increased to 3000/min, stirring is carried out for 1h, and the mixture is cooled to room temperature, thus obtaining the mineral oil defoamer.
The parameters provided in the present embodiment are specific references for implementing the present embodiment, and are not limiting of the inventive concept, and those skilled in the art may implement corresponding parameter changes according to the inventive concept to achieve the corresponding technical effects of the present invention.
The invention also provides a comparative example as follows:
comparative example 1:
mineral oil defoamers, KZJ-X12 from the Kigelia of the family of New Material Co.
Comparative example 2:
on the basis of example 3, the same amount of simethicone was used instead of the modified polysiloxane A1, and the remaining conditions were kept the same as those of example 3, to obtain a defoaming agent of comparative example 2.
Comparative example 3:
on the basis of example 5, the same amount of simethicone was used instead of the modified polysiloxane A2, and the remaining conditions were kept the same as those of example 5, to obtain a defoaming agent of comparative example 3.
In order to further illustrate the performance effect of the mineral oil defoamer provided by the embodiment of the invention, stability, defoaming and foam inhibition evaluation experiments are carried out on the defoamers prepared by the embodiment of the invention and the comparative example, and are as follows:
1. stability evaluation:
the concentration of the prepared defoamer is regulated to 20 percent, and then the defoamer is placed in a standard colorimetric tube and is placed for 72 hours, and whether layering occurs or not is observed so as to evaluate the stability of the defoamer;
2. defoaming and foam inhibition evaluation:
under normal pressure and normal temperature, 5g of commercial Poi nt-S polycarboxylate water reducer mother liquor (produced by Jie New Material Co., ltd.), 2g of sodium dodecyl benzene sulfonate and 98g of saturated calcium hydroxide solution are added into a 1000m l measuring cylinder, a cork is used for filling the measuring cylinder, and the mixture is oscillated up and down for 15 times, and the foam height (V 0 ) And defoaming time (t) 0 )；
Under normal pressure and normal temperature, 5g of commercially available Poi nt-S polycarboxylic acid (product of Jie New Material group Co., ltd., of the family) and 2g of sodium dodecylbenzenesulfonate were added to a 1000m l measuring cylinder, the cylinder was filled with a cork and oscillated up and down 15 times, 10m l mass fraction of 0.05% of an antifoaming agent was added dropwise, and the defoaming time (t 1 )；
Under normal pressure and normal temperature, 5g of commercially available Poi nt-S polycarboxylic acid (product of Jie New Material Co., ltd., of the family), 2g of sodium dodecylbenzenesulfonate and 10m l% by mass of an antifoaming agent were added to a 1000m l measuring cylinder, the cylinder was filled with a cork and oscillated up and down 15 times, and the foam height (V 1 )。
Will (t) 0 -t 1 )/t 0 Defined as the defoaming value, which represents the defoaming ability of the defoamer: the larger the defoaming value is, the better the defoaming capability of the defoaming agent is;
will (V) 0 -V 1 )/V 0 Defined as foam inhibition values, representing the foam inhibition capacity of the defoamer: the greater the suds suppressing value, the better the suds suppressing ability of the defoamer. The results of the performance evaluation test are shown in table 1:
table 1 test results
| Sample of | Stability of | Defoaming value | Bubble suppression value |
| Blank space | / | 0 | 0 |
| Example 3 | Good (good) | 0.81 | 0.66 |
| Example 4 | Good (good) | 0.83 | 0.62 |
| Example 5 | Good (good) | 0.82 | 0.64 |
| Example 6 | Good (good) | 0.85 | 0.61 |
| Comparative example 1 | In general | 0.47 | 0.31 |
| Comparative example 2 | Good (good) | 0.58 | 0.41 |
| Comparative example 3 | Good (good) | 0.61 | 0.42 |
By comparing the tests of the above examples and comparative examples, the examples 3 to 6 are more stable than the comparative example 1, which shows that the mineral oil defoamer prepared by the technical scheme of the invention has more complete emulsification than the defoamer of the prior art. Compared with the examples, the modified polysiloxane provided by the invention is not adopted in the comparative example 2 and the comparative example 3, and compared with the comparative examples 1-3, the tested defoaming value and the foam inhibition value of the examples 3-6 are higher, and the foam inhibition performance of the prepared organic silicon defoaming agent is effectively improved by introducing the modified polysiloxane in the technical scheme of the invention, so that the modified polysiloxane is suitable for the compounding application of the polycarboxylate water reducer.
According to the mineral oil defoamer provided by the invention, the silicone paste can be formed by compounding modified polysiloxane and silicone oil, and the fluorine element is introduced into the mineral oil defoamer and meanwhile, the polyether chain segment is grafted, so that the surface tension is effectively reduced, the compounding compatibility of the mineral oil defoamer and the polycarboxylate superplasticizer is improved, the defoaming performance is good, the application range is wide, and the improvement of the working performance is realized.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (11)
1. The mineral oil defoamer is characterized by being prepared from the following raw materials in percentage by mass by taking the total mass of the mineral oil defoamer as a reference: 11-21% of silicon paste, 3-6% of fatty acid metal soap, 3-8% of emulsifying component, 0.1-4% of auxiliary sterilizing component and the balance of mineral oil;
the silicon paste is prepared from modified polysiloxane, silicone oil and hydrophobic white carbon black according to the mass ratio of 7.5-12:3-5: 0.5-4.
2. The mineral oil defoamer of claim 1, wherein: the silicone oil is at least one of dimethyl silicone oil, hydrogen-containing silicone oil and hydroxyl silicone oil, and the viscosity is in the range of 500-2000cst.
3. The mineral oil defoamer of claim 1, wherein: the hydrophobic white carbon black is prepared by a gas phase method, and the specific surface area is 100-200m 2 /g。
4. The mineral oil defoamer of claim 1, wherein: the emulsifying component is formed by compounding more than two of nonionic surfactants and/or anionic surfactants with different HLB (high-low) levels.
5. The mineral oil defoamer of claim 4, wherein: the nonionic surfactant is selected from alkylphenol ethoxylates, fatty acid polyoxyethylene ethers and fatty alcohol polyoxyethylene ethers; at least one of sorbitan monostearate, sorbitan monooleate, sorbitan tristearate, sorbitan trioleate, polyoxyethylene sorbitan ether stearate, polyoxyethylene sorbitan monooleate, polyoxyethylene sorbitan tristearate, polyoxyethylene sorbitan trioleate, and castor oil polyoxyethylene ether;
wherein the alkylphenol ethoxylates comprise at least one of nonylphenol ethoxylates, octylphenol ethoxylates, dodecylphenol ethoxylates and dinonylphenol ethoxylates;
the fatty acid polyoxyethylene ether comprises at least one of lauric acid polyoxyethylene ether, oleic acid polyoxyethylene ether, palmitic acid polyoxyethylene ether and stearic acid polyoxyethylene ether;
the anionic surfactant comprises one of carboxylate, sulfate, sulfonate and phosphate; the anionic surfactant is at least one selected from sodium dodecyl polyoxyethylene ether sulfate, sodium dodecyl benzene sulfonate, sodium dodecyl sulfonate, sodium hexadecyl benzene sulfonate and sodium dodecyl diphenyl ether disulfonate.
6. The mineral oil defoamer of claim 1, wherein: the auxiliary component is formed by compounding one or more of fatty acid, fatty alcohol, wax and modified wax.
7. The mineral oil defoamer of claim 1, wherein: the fatty acid metal soap is formed by compounding one or more of magnesium salt, aluminum salt, calcium salt and zinc salt of fatty acid.
8. The mineral oil defoamer of claim 1, wherein: the mineral oil is one or more of white oil, kerosene, diesel oil, engine oil, liquid wax, alkylbenzene and naphthenic oil.
9. A process for the preparation of a mineral oil defoamer according to any of claims 1 to 8, characterized by comprising the following preparation steps:
preparation of modified polysiloxanes: controlling the temperature of the reactor to be 100-130 ℃, sequentially adding epoxy fluorosilicone oil, hydroxyl-containing polyether and a catalyst into the reactor, introducing nitrogen, continuously stirring for 2-4h, and separating and purifying to obtain modified polysiloxane; wherein the mass ratio of the epoxy fluorosilicone oil to the hydroxyl-containing polyether to the catalyst is 50-200:40-180:0.5-1;
preparing silicon paste: the temperature of the reactor is controlled to be 110-150 ℃, modified polysiloxane, silicone oil and hydrophobic white carbon black are added into the reactor, stirring is continued for 2-5h, and the mixture is cooled to room temperature to obtain silicon paste;
preparation of mineral oil defoamer: and controlling the temperature of the reactor to be 110-130 ℃, mixing the silicon paste, the fatty acid metal soap, the auxiliary sterilizing component and the mineral oil, stirring for 0.5-1.5h at 500-1000r/min, adding the emulsifying component, increasing the rotating speed to 1500-3000r/min, stirring for 0.5-1.5h, and cooling to room temperature to obtain the mineral oil defoaming agent.
10. The method for preparing the mineral oil defoamer of claim 9, wherein:
the structural formula of the epoxy fluorosilicone oil is as follows:
the structural formula of the hydroxyl-containing polyether is as follows:
the modified polysiloxane has the structural formula:
wherein, the value of a is 0 to 45, the value of b is 5 to 60, the value of c is 5 to 60, the value of m is 10 to 50, the value of n is 10 to 50, R 1 is-SiO (CH) 3 ) 3 or-CH 2 -CH 2 -CH 2 -O-CH 2 -C 3 H 3 At least one of O.
11. The method for preparing the mineral oil defoamer according to claim 9, wherein: the catalyst is at least one of triethylenediamine, N-alkyl morpholine, bis (2-methyl oxyethyl), ethylenediamine, triethylamine, m-phenylenediamine and p-phenylenediamine.
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