CN114381323A - Concrete release agent and preparation method thereof - Google Patents
Concrete release agent and preparation method thereof Download PDFInfo
- Publication number
- CN114381323A CN114381323A CN202111638854.9A CN202111638854A CN114381323A CN 114381323 A CN114381323 A CN 114381323A CN 202111638854 A CN202111638854 A CN 202111638854A CN 114381323 A CN114381323 A CN 114381323A
- Authority
- CN
- China
- Prior art keywords
- release agent
- parts
- concrete
- emulsifier
- stirring
- 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
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- 238000002360 preparation method Methods 0.000 title abstract description 21
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 94
- 239000003995 emulsifying agent Substances 0.000 claims abstract description 68
- 239000002131 composite material Substances 0.000 claims abstract description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000003225 biodiesel Substances 0.000 claims abstract description 24
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 claims abstract description 13
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 claims abstract description 13
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 12
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 8
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 claims description 26
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 claims description 26
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 claims description 26
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 claims description 26
- 239000005642 Oleic acid Substances 0.000 claims description 26
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 claims description 26
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 claims description 26
- 238000003756 stirring Methods 0.000 claims description 23
- IVKNZCBNXPYYKL-UHFFFAOYSA-N 2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[4-(2,4,4-trimethylpentan-2-yl)phenoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethanol Chemical group CC(C)(C)CC(C)(C)C1=CC=C(OCCOCCOCCOCCOCCOCCOCCOCCOCCOCCO)C=C1 IVKNZCBNXPYYKL-UHFFFAOYSA-N 0.000 claims description 19
- 239000000203 mixture Substances 0.000 claims description 19
- 239000002994 raw material Substances 0.000 claims description 18
- 239000003921 oil Substances 0.000 claims description 16
- 235000019198 oils Nutrition 0.000 claims description 16
- 239000006082 mold release agent Substances 0.000 claims description 15
- 238000001816 cooling Methods 0.000 claims description 13
- 229920000136 polysorbate Polymers 0.000 claims description 10
- -1 polyoxyethylene octyl phenol Polymers 0.000 claims description 8
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 claims description 7
- LRMHFDNWKCSEQU-UHFFFAOYSA-N ethoxyethane;phenol Chemical compound CCOCC.OC1=CC=CC=C1 LRMHFDNWKCSEQU-UHFFFAOYSA-N 0.000 claims description 7
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 claims description 7
- 239000003381 stabilizer Substances 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- 239000003755 preservative agent Substances 0.000 claims description 5
- 230000002335 preservative effect Effects 0.000 claims description 5
- 239000000230 xanthan gum Substances 0.000 claims description 5
- 229920001285 xanthan gum Polymers 0.000 claims description 5
- 229940082509 xanthan gum Drugs 0.000 claims description 5
- 235000010493 xanthan gum Nutrition 0.000 claims description 5
- 235000019484 Rapeseed oil Nutrition 0.000 claims description 4
- 235000010482 polyoxyethylene sorbitan monooleate Nutrition 0.000 claims description 4
- 229920000053 polysorbate 80 Polymers 0.000 claims description 4
- 229920001214 Polysorbate 60 Polymers 0.000 claims 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 claims description 3
- 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 3
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical group OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 3
- 150000007529 inorganic bases Chemical class 0.000 claims description 3
- 239000002671 adjuvant Substances 0.000 claims description 2
- 239000002285 corn oil Substances 0.000 claims description 2
- 235000005687 corn oil Nutrition 0.000 claims description 2
- 230000036961 partial effect Effects 0.000 claims description 2
- 235000012424 soybean oil Nutrition 0.000 claims description 2
- 239000003549 soybean oil Substances 0.000 claims description 2
- 239000000654 additive Substances 0.000 claims 1
- 230000000996 additive effect Effects 0.000 claims 1
- 238000010790 dilution Methods 0.000 abstract description 16
- 239000012895 dilution Substances 0.000 abstract description 16
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 abstract description 9
- 230000008569 process Effects 0.000 abstract description 7
- 238000001035 drying Methods 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 230000007797 corrosion Effects 0.000 abstract description 2
- 238000005260 corrosion Methods 0.000 abstract description 2
- 238000005034 decoration Methods 0.000 abstract description 2
- 239000008367 deionised water Substances 0.000 abstract description 2
- 229910021641 deionized water Inorganic materials 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 30
- 239000000839 emulsion Substances 0.000 description 29
- HFQQZARZPUDIFP-UHFFFAOYSA-M sodium;2-dodecylbenzenesulfonate Chemical compound [Na+].CCCCCCCCCCCCC1=CC=CC=C1S([O-])(=O)=O HFQQZARZPUDIFP-UHFFFAOYSA-M 0.000 description 18
- 238000012360 testing method Methods 0.000 description 16
- 230000006641 stabilisation Effects 0.000 description 15
- 238000011105 stabilization Methods 0.000 description 15
- 238000009472 formulation Methods 0.000 description 12
- 230000000694 effects Effects 0.000 description 8
- 239000000243 solution Substances 0.000 description 8
- 239000000126 substance Substances 0.000 description 7
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- 238000011161 development Methods 0.000 description 5
- 238000004945 emulsification Methods 0.000 description 5
- 230000002829 reductive effect Effects 0.000 description 5
- 239000003153 chemical reaction reagent Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 230000001804 emulsifying effect Effects 0.000 description 4
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 3
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- 239000012188 paraffin wax Substances 0.000 description 3
- 230000000087 stabilizing effect Effects 0.000 description 3
- 238000010998 test method Methods 0.000 description 3
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000004931 aggregating effect Effects 0.000 description 2
- 239000003945 anionic surfactant Substances 0.000 description 2
- 150000001450 anions Chemical class 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000015271 coagulation Effects 0.000 description 2
- 238000005345 coagulation Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 239000010705 motor oil Substances 0.000 description 2
- 231100000252 nontoxic Toxicity 0.000 description 2
- 230000003000 nontoxic effect Effects 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- 239000004094 surface-active agent Substances 0.000 description 2
- 230000002195 synergetic effect Effects 0.000 description 2
- DUIOKRXOKLLURE-UHFFFAOYSA-N 2-octylphenol Chemical compound CCCCCCCCC1=CC=CC=C1O DUIOKRXOKLLURE-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 1
- 241000047703 Nonion Species 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 210000002469 basement membrane Anatomy 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910001424 calcium ion Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000006071 cream Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000010710 diesel engine oil Substances 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 229910001425 magnesium ion Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000000693 micelle Substances 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- 239000002736 nonionic surfactant Substances 0.000 description 1
- 239000007764 o/w emulsion Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 239000007762 w/o emulsion Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
- C10M169/04—Mixtures of base-materials and additives
- C10M169/044—Mixtures of base-materials and additives the additives being a mixture of non-macromolecular and macromolecular compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/38—Treating surfaces of moulds, cores, or mandrels to prevent sticking
- B28B7/384—Treating agents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/38—Treating surfaces of moulds, cores, or mandrels to prevent sticking
- B28B7/388—Treating surfaces of moulds, cores, or mandrels to prevent sticking with liquid material, e.g. lubricating
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/06—Metal compounds
- C10M2201/062—Oxides; Hydroxides; Carbonates or bicarbonates
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/10—Carboxylix acids; Neutral salts thereof
- C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
- C10M2207/125—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids
- C10M2207/126—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids monocarboxylic
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/10—Carboxylix acids; Neutral salts thereof
- C10M2207/20—Rosin acids
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/28—Esters
- C10M2207/283—Esters of polyhydroxy compounds
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/40—Fatty vegetable or animal oils
- C10M2207/401—Fatty vegetable or animal oils used as base material
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
- C10M2209/104—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of alkylene oxides containing two carbon atoms only
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
- C10M2209/108—Polyethers, i.e. containing di- or higher polyoxyalkylene groups etherified
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
- C10M2209/109—Polyethers, i.e. containing di- or higher polyoxyalkylene groups esterified
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/12—Polysaccharides, e.g. cellulose, biopolymers
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
- C10M2215/04—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms
- C10M2215/042—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms containing hydroxy groups; Alkoxylated derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/04—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions containing sulfur-to-oxygen bonds, i.e. sulfones, sulfoxides
- C10M2219/044—Sulfonic acids, Derivatives thereof, e.g. neutral salts
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/64—Environmental friendly compositions
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/36—Release agents or mold release agents
Abstract
The invention provides a concrete release agent and a preparation method thereof. The concrete release agent comprises the following components in parts by weight: 150 portions and 200 portions of biodiesel; 30-40 parts of an oily emulsifier; 15-20 parts of a composite water-soluble emulsifier; 25-30 parts of rosin; 30-40 parts of ethanol and 4 parts of sodium hydroxide; 5-10 parts of deionized water. The concrete release agent has good stability, no corrosion, prolonged service life of the template and high dilution ratio which can reach 1: 8. Meanwhile, the concrete release agent has short drying and film forming time and no influence on the concrete surface decoration process.
Description
Technical Field
The invention relates to the technical field of concrete engineering construction, in particular to a concrete release agent and a preparation method thereof.
Background
Since the early 60 s of the twentieth century, the release agent developed very rapidly, and a series of products were formed so far and gradually matched with modern construction and template technologies.
Most of the early concrete projects in China also use engine oil or waste engine oil as a release agent, but the drying time after coating is long, so that clothes of construction operators and polluted reinforcing steel bars are easily polluted, and after concrete is hardened and demoulded, oil spots are often formed on the surface of a structure.
At present, the water-based release agent developed abroad is mainly prepared by preparing substances such as paraffin, oil and the like into oil-in-water or water-in-oil emulsion or cream through an emulsification technology, or adding a surfactant into pure oil for use and the like. The emulsion type release agent has good demolding effect, the usage amount of film forming substances (oil or paraffin) is small, the pollution to the surface of a concrete structure is reduced to the maximum extent, non-renewable resources such as paraffin, diesel oil, engine oil and the like are saved, the concept of sustainable development with low energy consumption at present is met, and the scientific development concept is met.
At present, the environment-friendly concrete mold release agent in the mold release agent market only occupies a small share (the European market is only 5%), but with the increasing perfection of legislation and supervision, people pay more and more attention to safety, environmental protection and health, and the environment-friendly concrete mold release agent is bound to become the mainstream of the market and replace the traditional mold release agent. The development of the environment-friendly concrete release agent is bound to become the development direction of the concrete release agent in the future. Biodiesel is a solar substance which is nontoxic, pollution-free and free of pungent smell, and has good demolding effect due to the film forming lubricity, so that the research on the preparation of the environment-friendly concrete demolding agent by using the biodiesel has very profound and important significance.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a concrete release agent and a preparation method thereof, which are used for solving the problem that the release agent in the prior art has a short stabilization period, generally below 60 days; the concrete has the technical defects of high use cost and influence on construction, such as large adhesion amount, small dilution ratio and the like.
In a first aspect, the invention provides a concrete release agent, which comprises the following raw material components in parts by mass:
the composite water-soluble emulsifier is at least two of tween, polyoxyethylene octyl phenol ether and sodium dodecyl benzene sulfonate.
As a specific embodiment of the invention, the composite water-soluble emulsifier comprises 3-7 parts of tween, 3-6 parts of polyoxyethylene octyl phenol ether and 2-7 parts of sodium dodecyl benzene sulfonate in parts by weight.
As a specific embodiment of the present invention, preferably, the composite water-soluble emulsifier comprises, by mass, 4 to 7 parts of tween, 4 to 6 parts of polyoxyethylene octyl phenol ether and 2 to 4 parts of sodium dodecyl benzene sulfonate.
As a specific embodiment of the present invention, the tween comprises tween60 or tween 80; the polyoxyethylene octylphenol ether is preferably OP-10.
As a specific embodiment of the present invention, the oily emulsifier comprises at least one of span 60, span 80 and oleic acid.
As a specific embodiment of the invention, the mass ratio of the oily emulsifier to the composite water-soluble emulsifier is (6-8): (3-4); preferably 2: 1.
Most preferably, the composition of the composite water-soluble emulsifier is: the mass parts of TW-80, OP-10 and SDBS are respectively 6 parts, 6 parts and 3 parts; the oily emulsifier is 30 parts of oleic acid.
The action principle is as follows: the oil emulsifier belongs to nonionic surfactant, while the compound aqueous emulsifier belongs to anionic surfactant, the action principle is that in the emulsification process, the dispersed phase is dispersed in the continuous phase in the form of micro-droplets (micron-sized), the emulsifier reduces the interfacial tension of each component in the mixed system, and forms firmer film on the surface of the micro-droplets or forms an electric double layer on the surface of the micro-droplets due to the charge given by the emulsifier, thereby preventing the micro-droplets from aggregating with each other and keeping uniform and stable emulsion; the anion/non-ion generates electric charge in the emulsion, so that tiny oil drops in the emulsion are provided with the same electric charge, the coagulation of the oil drops is prevented through the action of static electricity, the stability of the emulsion is favorably kept, and in addition, the strong synergistic action between TW-80 and OP-10 can form a stable film on the surface of the emulsion, so that the stability of the emulsion is promoted. The charge generated by the anion/nonionic in the emulsion is dispersed in the form of droplets (in the micron order) in the continuous phase, and the emulsifier reduces the interfacial tension of the components in the mixed system and forms a relatively strong film on the surface of the droplets or forms an electric double layer on the surface of the droplets due to the charge given by the emulsifier, preventing the droplets from aggregating with each other, thereby maintaining a uniform emulsion.
In a specific embodiment of the present invention, the biodiesel comprises at least one of rapeseed oil, soybean oil, and corn oil.
The invention is not limited by the method for refining the biodiesel, and the biodiesel can be refined by a conventional method, such as a rapeseed oil refining method: mixing methanol and rapeseed oil, carrying out supercritical reaction, separating liquid to remove lower phase, namely glycerol, and evaporating upper phase to remove methanol during cooling process to obtain the biodiesel.
As a specific embodiment of the invention, the raw material components of the concrete release agent further comprise: 0.5-2 parts by mass of a preservative; 0.5-2 parts of stabilizer.
As a specific embodiment of the present invention, the preservative is triethanolamine; the stabilizer is xanthan gum. As a specific embodiment of the present invention, the film-forming aid is rosin; preferably special grade rosin; the special grade rosin has the least impurities and the ash content of less than or equal to 0.02 percent according to GB8146-87 rosin test method standard.
The adhesion analysis demolding mechanism is to overcome the adhesive force between the template and the concrete or the cohesion of the surface concrete by three functions of mechanical lubrication, barrier film and chemical action; the secondary structure of the stabilizer xanthan gum is that the side chain reversely winds around the main chain skeleton, a rodlike double-spiral structure is formed through a hydrogen bond system, the composite emulsifier improves the number of days for stabilizing the solution, the stability of winding of the main chain skeleton of the xanthan gum is promoted, the double-spiral structure is more stable, the time for the release agent to stay on the side wall of the mold before drying and film forming is prolonged, namely, the oil content on the side wall is increased, the isolation lubrication effect between the mold and a concrete sample block is obvious, and the amount of the concrete year on the mold is reduced.
As a specific embodiment of the present invention, the inorganic base includes at least one of sodium hydroxide, potassium hydroxide, and sodium bicarbonate.
As a specific embodiment of the present invention, the water is preferably deionized water, which is to avoid the influence of calcium and magnesium ions in ordinary ground water or tap water on the reagents.
The above raw materials in the present invention may be prepared by themselves or may be obtained commercially, and the present invention is not particularly limited thereto.
In a second aspect, the invention provides a preparation method of a concrete release agent, which comprises the following steps:
s1: mixing oily emulsifier, film-forming adjuvant such as rosin and part of biodiesel, heating and stirring;
s2: adding the rest part of biodiesel into the mixture obtained in the step S1, and stirring at controlled temperature;
s3: adding the composite water-soluble emulsifier and the inorganic base into the mixture obtained in the step S2, and stirring at controlled temperature;
s4: and (4) adding ethanol and water into the mixture obtained in the step S3, cooling to room temperature, and continuously stirring to obtain the concrete release agent.
In a specific embodiment of the present invention, in step S1, the partial biodiesel is preferably biodiesel of a quality equal to that of rosin; heating to 110-130 ℃; stirring for 20-40 min; the stirring speed is 150-300 r/min; because the melting temperature of the rosin is about 110 ℃, the biodiesel is added into S1 to ensure that the rosin is quickly dissolved and dissolved in the biodiesel.
In the step S2, cooling to 95-105 ℃; after the addition, controlling the temperature to be 85-95 ℃; stirring for 20-40 min; the residual biodiesel was added in S2 to allow uniform mixing with the oil in S1 after the temperature was reduced.
In the step S3, cooling to 55-65 ℃; after the addition, controlling the temperature to be 55-60 ℃; stirring for 10-30 min;
in the step S4, cooling to 35-45 ℃; the stirring time is 10-30 min.
Heating to 110-130 ℃ from step S1, and adding the components in the process of cooling again to save energy; the temperature is controlled to be stable when a certain temperature is reached, so that the reagent is better dissolved into the solution.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the concrete release agent, the oily emulsifier is matched with the composite water-soluble emulsifier, so that the concrete release agent has good stability and no corrosion, and the service life of a template is prolonged. Meanwhile, the concrete release agent has short drying and film forming time and no influence on the concrete surface decoration process.
2. In the embodiment of the invention, the dilution ratio of the concrete release agent to water can reach 1:8, namely the mass ratio of the release agent to water is 1:8, so that the use cost is well reduced.
3. Compared with the traditional mineral oil mold release agent, the biodiesel mold release agent is a solar substance which is non-toxic, pollution-free and free of pungent smell, and meets the advocated green sustainable development requirement.
Detailed Description
The present invention is further illustrated by the following examples, which are not to be construed as limiting the invention in any way.
In each embodiment of the invention, the meaning of the Span is the same as that of the Span, and the Span is abbreviated as S, such as S-60; "Tween" has the same meaning as "Tween", abbreviated as "TW", e.g., TW-80 "; "polyoxyethylene octyl phenol ether" abbreviated as "OP"; sodium dodecyl benzene sulfonate is abbreviated as SDBS, and triethanolamine and xanthan gum are analytical grades of Tianjin reagent chemical plant.
In the examples of the present invention, the proportions and percentages, unless otherwise specified, are expressed by mass ratios and mass percentages.
In each embodiment of the invention, the test method of the main performance index is as follows:
testing for days of stability. The test method for days of stability of the present invention is as follows: and (3) sampling, injecting the sample into a colorimetric tube, standing at room temperature (about 25 ℃), and observing whether the sample is uniform under natural illumination or not, wherein the sample has obvious layering phenomenon. The days after standing until layering are the stabilization days.
The concrete adhesion was tested according to GB8076-1997, GB/T50080, GB/T50081: cleaning the interior of the mould, brushing a release agent, pouring out a sample block after 24 hours, shoveling concrete adhered to the working surface of the basement membrane by using a shovel blade, weighing by using balance after collection, and calculating the adhesion amount (g/m) of a unit area2)。
The emulsifier is selected from an oily emulsifier oleic acid: the mass ratio of the composite water-soluble emulsifier to the composite water-soluble emulsifier is 1: 0.5. Table 1 shows the emulsified state of the emulsion when the amount of the emulsifier is 10%, 15%, 20%, 25%, 33% of the amount of the biodiesel, and Table 1 shows that the amount of the emulsifier is 25% or more.
TABLE 1 comparison of emulsifier dosage and emulsion state
| Amount of emulsifier (%) | Emulsion state |
| 10 | Layering |
| 15 | Layering |
| 20 | Layering |
| 25 | Stabilization |
| 33 | Stabilization |
TABLE 2 Effect of different emulsification temperatures on emulsion stability
The emulsifying temperature is an important parameter of the stability of the emulsion of the release agent, and when the emulsifying temperature is proper, the sufficient dispersion of the liquid drops in the emulsion can be effectively promoted, and the stability of the emulsion is improved. The effect of different emulsification temperatures on the stability and release properties of the release agent emulsions is shown in table 2. It can be seen that the emulsification temperature has a significant effect on the stability and release properties of the release agent. The temperature of the two processes, namely oil phase reaction temperature and water phase reaction temperature, is involved in the preparation process of the biodiesel-based release agent. When the emulsifying temperature is 120 ℃, the emulsion has relatively high stability, the solution is relatively stable, the micelle structure tends to be stable because of violent collision among high molecules at the temperature, accelerated movement among the molecules and increased probability of ionic bond collision combination, and at the moment, the concrete adhered on the mold is less, which meets the standard requirement of JC/T949-. When the temperature of the emulsion in the first experimental step is 100 ℃, the centrifugal stability of the emulsion is gradually reduced, and the using performance of the concrete is easy to demould and has larger adhesive amount.
Example 1
This example provides a concrete release agent, which comprises the following raw material components (calculated by mass parts, 10g of ingredients per part):
wherein, the composite water-based emulsifier comprises the following components: the mass parts of TW-80, OP-10 and SDBS are respectively 6 parts, 6 parts and 3 parts; namely, the ratio of TW-80, OP-10, SDBS and oleic acid which is an oily emulsifier is 6:6:3: 30.
The preparation method comprises the following steps:
s1: mixing oleic acid, rosin and biodiesel with equal mass, stirring until the oleic acid and the rosin are fused, raising the temperature to 120 ℃, and stirring for 30min at the rotating speed of 200 r/min;
s2: naturally cooling the solution to 100 ℃, adding the rest part of biodiesel, and stirring for 30min at the temperature of 90 +/-5 ℃ after the addition;
s3: naturally cooling the upper hand solution to 60 deg.C, adding water soluble emulsifier and sodium hydroxide water solution dropwise for 20min, maintaining rotation speed, and stirring at 55-60 deg.C for 20 min;
s4: naturally cooling the solution to 40 ℃, adding an ethanol solution, controlling the dropping time to be 30min to 40min, closing the temperature after the dropping is finished, continuously stirring for 20min, and adding a stabilizer and a preservative to finish the release agent experiment.
Tests show that the dilution ratio of the concrete release agent obtained in example 1 is 1:8, namely the mass ratio of the release agent to water is 1:8, and the number of days for stabilization of the obtained concrete release agent is 90 d; the adhesion was 4.3g/m2。
Example 2
This example provides a concrete release agent having a raw material formulation and a preparation method substantially the same as those of example 1 except that: the composite water-soluble emulsifier comprises the following components: the TW-80, OP-10 and SDBS are respectively 6 parts, 4 parts and 5 parts by mass, namely the ratio of the TW-80, OP-10 and SDBS to the oleic acid of the oily emulsifier is 6: 4: 5: 30.
tests show that the dilution ratio of the concrete release agent obtained in example 2 is 1:6, namely the mass ratio of the release agent to water is 1:6, and the number of days for stabilization of the obtained concrete release agent is 83 d; the adhesion was 4.9g/m2。
Example 3
This example provides a concrete release agent having a raw material formulation and a preparation method substantially the same as those of example 1 except that: the composite water-based emulsifier comprises the following components: the mass parts of TW-80, OP-10 and SDBS are respectively 4 parts, 4 parts and 7 parts; namely, the ratio of TW-80, OP-10, SDBS and oleic acid as an oily emulsifier is 4: 4: 7: 30.
tests show that the dilution ratio of the concrete release agent obtained in example 3 is 1:5, namely the mass ratio of the release agent to water is 1:5, and the number of days for stabilization of the obtained concrete release agent is 71 d; the adhesion was 5.5g/m2。
Example 4
This example provides a concrete release agent having a raw material formulation and a preparation method substantially the same as those of example 1 except that: the composite water-based emulsifier comprises the following components: the mass parts of TW-80, OP-10 and SDBS are respectively 8 parts, 3 parts and 4 parts, namely the ratio of TW-80, OP-10, SDBS to oleic acid as an oily emulsifier is 5: 6: 4: 30.
tests show that the dilution ratio of the concrete release agent obtained in example 4 is 1:3, namely the mass ratio of the release agent to water is 1:3, and the number of days for stabilization of the obtained concrete release agent is 60 d; the adhesion was 6.3g/m2。
Example 5
This example provides a concrete release agent having a raw material formulation and a preparation method substantially the same as those of example 1 except that: the oily emulsifier is span 60 changed from oleic acid.
Tests show that the dilution ratio of the concrete release agent obtained in example 5 is 1:6, namely the mass ratio of the release agent to water is 1:6, and the number of days for stabilization of the obtained concrete release agent is 79 days; the adhesion was 5.2g/m2。
Example 6
This example provides a concrete release agent having a raw material formulation and a preparation method substantially the same as those of example 1 except that: the oily emulsifier is span 80 changed from oleic acid.
Tests show that the dilution ratio of the concrete release agent obtained in example 6 is 1:5, namely the mass ratio of the release agent to water is 1:5, and the number of days for stabilization of the obtained concrete release agent is 76 d; the adhesion was 5.5g/m2。
Comparative example 1
This comparative example provides a concrete release agent having a raw material formulation and a preparation method substantially the same as those of example 1 except that: the composite water-soluble emulsifier is single TW-80, and the mass portion is 15 portions.
According to tests, the dilution ratio of the concrete release agent obtained in the comparative example 1 is 1:4, namely the mass ratio of the release agent to water is 1:4, and the number of days for stabilizing the obtained concrete release agent is 42 days; the adhesion was 6.2g/m2。
Comparative example 2
This comparative example provides a concrete release agent having a raw material formulation and a preparation method substantially the same as those of example 1 except that: the composite water-soluble emulsifier is single OP-10, and the mass portion is 15 portions.
According to tests, the dilution ratio of the concrete release agent obtained in the comparative example 2 is 1:4, namely the mass ratio of the release agent to water is 1:4, and the number of days for stabilizing the obtained concrete release agent is 36 d; the adhesion was 6.9g/m2。
Comparative example 3
This comparative example provides a concrete release agent having a raw material formulation and a preparation method substantially the same as those of example 1 except that: the composite water-soluble emulsifier is single SDBS with the mass portion of 15.
According to tests, the dilution ratio of the concrete release agent obtained in the comparative example 3 is 1:2, namely the mass ratio of the release agent to water is 1:2, and the stabilization days of the obtained concrete release agent is 28 days; the adhesion was 7.6g/m2。
Comparative example 4
This comparative example provides a concrete release agent having a raw material formulation and a preparation method substantially the same as those of example 1 except that: 45 parts of oily emulsifier oleic acid.
Tests show that the dilution ratio of the concrete release agent obtained according to the proportion is 1:8, namely the mass ratio of the release agent to water is 1:8, and the number of days for stabilization of the obtained concrete release agent is 90.5 days; the adhesion was 4.4g/m2。
Comparative example 5
This comparative example provides a concrete release agent having a raw material formulation and a preparation method substantially the same as those of example 1 except that: 25 parts of oleic acid serving as an oily emulsifier by mass.
The release agent obtained in comparative example 5 floated an oily substance on the surface.
According to tests, the dilution ratio of the concrete release agent obtained in the comparative example is 1:6, namely the mass ratio of the release agent to water is 1:6, and the number of days for stabilization of the obtained concrete release agent is 72 d; the adhesion was 6.3g/m2。
Comparative example 6
This comparative example provides a concrete release agent having a raw material formulation and a preparation method substantially the same as those of example 1 except that: 25 parts of composite water-soluble emulsifier.
Tests show that the dilution ratio of the concrete release agent obtained according to the proportion is 1:8, namely the ratio of the release agent to water is 1:8, and the number of days for stabilization of the obtained concrete release agent is 91 d; the adhesion was 4.3g/m2。
Comparative example 7
This comparative example provides a concrete release agent having a raw material formulation and a preparation method substantially the same as those of example 1 except that: 10 parts of composite water-soluble emulsifier.
Tests show that the dilution ratio of the concrete release agent obtained according to the proportion is 1:5, namely the ratio of the release agent to water is 1:5, and the number of days for stabilization of the obtained concrete release agent is 73 d; the adhesion was 6.5g/m2。
The concrete mold release agents prepared in examples 1 to 6 and comparative examples 1 to 7 were tested, and the test results are shown in table 3:
TABLE 3 test results of concrete Release agents of examples 1 to 6 and comparative examples 1 to 7
Table 3 shows that the oily emulsifier is most effective as oleic acid when example 1 is compared with examples 5 and 6.
Comparing the example 1 with the comparative example 4 and the comparative example 5, it can be seen that when the oleic acid serving as the oily emulsifier is 30 parts, the performance is optimal, 45 parts of the oleic acid is added into the comparative example 4, the performance of the obtained concrete mold release agent is almost the same as the addition amount of 30 parts of the oleic acid, and the oleic acid is much added, so that the effect cannot be increased, and the oleic acid reagent is wasted; comparative example 5 adding 25 parts oleic acid produced a much poorer performance concrete release agent than example 1, further indicating that the performance is best when the oleic acid, the oil emulsifier, is 30 parts.
Comparing example 1 with comparative example 6 and comparative example 7, it can be seen that when the composite water-soluble emulsifier is 15 parts (and the ratio of TW-80, OP-10 and SDBS is 6:6:3), the performance is optimal, in comparative example 6, 25 parts of the composite water-soluble emulsifier is added (the ratio of TW-80, OP-10 and SDBS is 6:6:3), the performance of the obtained concrete mold release agent is almost the same as that of the composite water-soluble emulsifier 15 parts, the rest of the emulsifier generates a layer of impurities on the surface of the emulsion, which is that the oleic acid ratio is less, so that the composite water-soluble emulsifier is not fully emulsified, and the phenomenon that the composite water-soluble emulsifier is wasted due to the fact that the effect cannot be increased by adding much composite water-soluble emulsifier; comparative example 7 adding 10 parts of oleic acid (TW-80, OP-10, SDBS ratio 6:6:3) resulted in a concrete release agent with far less than the best performance of example 1, further illustrating that the performance is optimal when the composite water-soluble emulsifier is 15 parts (TW-80, OP-10, SDBS ratio 6:6: 3).
As can be seen from examples 1-6, the combination of oleic acid + Tween80+ OP-10+ SDBS adopted in example 1 has the highest emulsion stability, reaches 90 days of stable days, and has the adhesion amount of 4.3g/m2。
By comprehensively comparing examples 1-6 with comparative examples 1-7, it can be seen that when the oily emulsifier oleic acid is selected to be compounded with the composite water-soluble emulsifier (Tween60+ Op-10+ SDBS), the emulsifying effect is improved, and the emulsion stability is improved; this is because the combination of several surfactants can reduce the surface tension of the emulsion, and thus the stability of the emulsion is also improved. The anionic surfactant is ionized in water to generate charges, so that micro oil drops in the emulsion have the same charges, and the coagulation of the oil drops is prevented through the electrostatic action, thereby being beneficial to the stability of the emulsion. In addition, OP-10 and Tween80 have obvious synergistic effect, and can form stable film on the surface of emulsion droplet, so that the stability of emulsion is promoted. The stability of the emulsified oil can reach more than 70 days, and the emulsified oil can further be matched with SDBS to reach more than 80 days.
Any numerical value mentioned in this specification, if there is only a two unit interval between any lowest value and any highest value, includes all values from the lowest value to the highest value incremented by one unit at a time. For example, if it is stated that the amount of a component, or a value of a process variable such as temperature, pressure, time, etc., is 50 to 90, it is meant in this specification that values of 51 to 89, 52 to 88 … …, and 69 to 71, and 70 to 71, etc., are specifically enumerated. For non-integer values, units of 0.1, 0.01, 0.001, or 0.0001 may be considered as appropriate. These are only some specifically named examples. In a similar manner, all possible combinations of numerical values between the lowest value and the highest value enumerated are to be considered to be disclosed in this application.
It should be noted that the above-mentioned embodiments are only for explaining the present invention, and do not constitute any limitation to the present invention. The present invention has been described with reference to exemplary embodiments, but the words which have been used herein are words of description and illustration, rather than words of limitation. The invention can be modified, as prescribed, within the scope of the claims and without departing from the scope and spirit of the invention. Although the invention has been described herein with reference to particular means, materials and embodiments, the invention is not intended to be limited to the particulars disclosed herein, but rather extends to all other methods and applications having the same functionality.
Claims (11)
1. The concrete release agent is characterized by comprising the following raw material components in parts by mass:
the composite water-soluble emulsifier is at least two of tween, polyoxyethylene octyl phenol ether and sodium dodecyl benzene sulfonate.
2. The concrete mold release agent as claimed in claim 1, wherein the composite water-soluble emulsifier comprises 3-7 parts of tween, 3-6 parts of polyoxyethylene octyl phenol ether and 2-7 parts of sodium dodecyl benzene sulfonate by mass.
3. The concrete mold release agent according to claim 1 or 2, characterized in that, preferably, the composite water-soluble emulsifier consists of 4-7 parts of tween, 4-6 parts of polyoxyethylene octyl phenol ether and 2-4 parts of sodium dodecyl benzene sulfonate in parts by mass.
4. The concrete release agent according to any one of claims 1 to 3, wherein the Tween comprises Tween60 or Tween 80; and/or
The polyoxyethylene octyl phenol ether is OP-10.
5. The concrete mold release agent according to any one of claims 1 to 4, wherein the oily emulsifier is at least one of span 60, span 80 and oleic acid.
6. The concrete mold release agent according to any one of claims 1 to 5, wherein the mass ratio of the oil-based emulsifier to the composite water-soluble emulsifier is (6-8): (3-4); preferably 2: 1.
7. The concrete release agent according to any one of claims 1 to 6, wherein the biodiesel comprises at least one of rapeseed oil, soybean oil, and corn oil; and/or
The film-forming additive is rosin.
8. The concrete release agent according to any one of claims 1 to 7, wherein the raw material components of the concrete release agent further include: 0.5-2 parts by mass of a preservative; and/or
0.5-2 parts of stabilizer.
9. The concrete release agent according to any one of claims 1 to 8, wherein the preservative is triethanolamine; and/or
The stabilizer is xanthan gum.
10. A method for preparing a concrete mold release agent according to any one of claims 1 to 9, characterized by comprising the steps of:
s1: mixing oily emulsifier, film-forming adjuvant such as rosin and part of biodiesel, heating and stirring;
s2: adding the rest part of biodiesel into the mixture obtained in the step S1, and stirring at controlled temperature;
s3: adding the composite water-soluble emulsifier and the inorganic base into the mixture obtained in the step S2, and stirring at controlled temperature;
s4: and (4) adding ethanol and water into the mixture obtained in the step S3, cooling to room temperature, and continuously stirring to obtain the concrete release agent.
11. The method for preparing a concrete mold release agent according to claim 10, wherein in the step S1, the partial biodiesel is equal mass biodiesel to a film forming aid; heating to 110-130 ℃; stirring for 20-40 min; the stirring speed is 150-300 r/min; and/or
In the step S2, cooling to 95-105 ℃; after the addition, controlling the temperature to be 85-95 ℃; stirring for 20-40 min; and/or
In the step S3, cooling to 55-65 ℃; after the addition, controlling the temperature to be 55-60 ℃; stirring for 10-30 min; and/or
In the step S4, cooling to 35-45 ℃; the stirring time is 10-30 min.
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| CN115418260A (en) * | 2022-08-31 | 2022-12-02 | 珠海度铖材料科技有限公司 | Efficient concrete release agent for concrete products and preparation method thereof |
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Application publication date: 20220422 |
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