CN103525099B - Compound asphalt emulsifier containing Gemini surface active agent - Google Patents
Compound asphalt emulsifier containing Gemini surface active agent Download PDFInfo
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- CN103525099B CN103525099B CN201210226139.9A CN201210226139A CN103525099B CN 103525099 B CN103525099 B CN 103525099B CN 201210226139 A CN201210226139 A CN 201210226139A CN 103525099 B CN103525099 B CN 103525099B
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Abstract
The invention discloses a kind of Compound asphalt emulsifier, described Compound asphalt emulsifier is made up of cation quaternary ammonium salt single linked list surface-active agent and Gemini surface active agent, and the mass ratio of described cation quaternary ammonium salt single linked list surface-active agent and Gemini surface active agent is 1-2:1.Use bitumen emulsion prepared by this composite emulsifier, the usage quantity of emulsifying agent has had significant reduction, mostly there is the large shortcoming of dosage of surfactant in the bitumen emulsion overcoming preparation at present, and the bitumen emulsion of preparation is well-behaved, meets the examination criteria of JTJ052-2000 test method.
Description
Technical field
The present invention relates to asphalt emulsification technical field, particularly relate to a kind of Compound asphalt emulsifier containing Gemini surface active agent.
Background technology
The chocolate complex mixture that pitch is made up of hydrocarbon polymer and the nonmetal derivative thereof of different molecular weight, is in a liquid state, semi-solid state or solid-state, is a kind of waterproof and dampproof and rot-resistant organic gel gel material.Be widely used in industry and the surfacings etc. such as coating, plastics, rubber.Because pitch most of under normal temperature is solid, so start most to be liquid use by bitumen conversion by the method for heating.But along with the increase of pitch usage quantity, people more and more feel the inconvenience that asphalt heating is constructed, and heat-processed occur environmental pollution, energy consumption, the uneasy congruent problem of production, start to explore the normal temperature constructional method of pitch.So fluxed asphalt, emulsified bitumen etc. start to occur and are applied.Emulsified asphalt technology originates from the Europe of 20 beginnings of the century, is pitch heat to be melted, and then under emulsifying agent effect, through mechanical dispersion, pitch is scattered in water with tiny graininess and forms milk sap, and then can realize normal temperature application.This asphalt emulsification technology can save the step of the front heated asphalt of construction, not only decreases the pollution of environment, reduces fuel usage quantity, can also significantly improve production efficiency.
In the research process of bitumen emulsion, the emulsifying agent used the earliest is anionic emulsifier, because raw material is easy to get, and wide material sources, anionic emulsifier as topmost emulsifier type, is worldwide widely used within the quite a long time.But because negatively charged ion bitumen emulsion medium pitch particulate is electronegative, with building stones poor adhesion electronegative under dampness, cause bitumen particle can not be attached to stone surface as early as possible, firmly, affect pavement performance and gradually replace by positively charged cationic asphalt emulsion.At present, the cats product being widely used in preparing bitumen emulsion comprises: (1) quaternary ammonium salt; (2) alkyl amine; (3) amide group amine; (4) imidazolines; (5) xylogen amine etc.
The result of use of the characteristics influence subsequent construction of bitumen emulsion, bitumen emulsion prepared by present stage has reached corresponding construction requirement, but still there are some problems, as dosage of surfactant is bigger than normal.The positive ion imidazoline that in Chinese patent CN 101643584A, the people such as Hu Shuguang uses and the consumption of polyoxyethylene sorbitan trioleate composite emulsifier are about 10% of total bitumen emulsion weight ratio, the composite emulsifier of octadecyl trimethyl ammonium chloride and oxirane mixture is employed in a kind of petroleum pitch emulsion coating material that in Chinese patent CN 1746242A prepared by Zhao Xin equality people, the usage quantity of this emulsifying agent is between 1.5 ~ 2.5%, a kind of emulsified bitumen that in Chinese patent CN 101153118A prepared by Zhang Hongwu employs the composite of ionogenic surfactant and nonionic surface active agent, their usage quantity is respectively 1 ~ 15% and 2.5 ~ 19% of total mass ratio, the bigger than normal of emulsifying agent usage quantity undesirably increases the production cost preparing bitumen emulsion.
Emulsifying agent textural property is the key factor determining bitumen emulsion character quality, and the asphalt emulsifier of application mostly at present is the cation asphalt emulgent of single-stranded structure, and Gemini surface active agent is a class novel surfactant.Gemini surface active agent is by chemical bond by two or more same or almost same surfactant monomer, is linked together by amphiphilic composition at hydrophilic group or near hydrophilic group with linking group.Gemini surface active agent and conventional surfactant structure have obvious difference, containing two oleophylics, hydrophilic radical and linking groups in this surfactant molecule, have good water-soluble and surfactivity, its distinguishing feature shows: the CMC value that (1) is lower; (2) Krafft point is low, and lyotropy is good; (3) composite successful.Gemini surface active agent not only has the character feature of conventional surfactant but also has much new good characteristics, but the Patents that Gemini surface active agent is applied in bitumen emulsion also rarely has report.
Summary of the invention
Technical problem to be solved by this invention is, provides a kind of Compound asphalt emulsifier containing Gemini surface active agent.
Second technical problem to be solved by this invention provides the bitumen emulsion that a kind of emulsifier content is lower.
3rd technical problem to be solved by this invention provides the bitumen emulsion preparation method that a kind of emulsifier content is lower.
In order to solve above-mentioned first problem, the invention provides a kind of Compound asphalt emulsifier, described Compound asphalt emulsifier is made up of cation quaternary ammonium salt single linked list surface-active agent and Gemini surface active agent, and the mass ratio of described cation quaternary ammonium salt single linked list surface-active agent and Gemini surface active agent is 1-2:1.
Described cation quaternary ammonium salt single linked list surface-active agent is one or more in Dodecyl trimethyl ammonium chloride, tetradecyl trimethyl ammonium chloride, palmityl trimethyl ammonium chloride, octadecyl trimethyl ammonium chloride tensio-active agent.
Described Gemini surface active agent is two octadecyldimethyl ammonium halide tensio-active agents.
Described pair of octadecyldimethyl ammonium halide tensio-active agent is ethane-1,2-distearyl dimethyl ammonium chloride, propane-1,3-distearyl dimethyl ammonium chloride, butane-1,4-distearyl dimethyl ammonium chloride, hexane-1,6-distearyl dimethyl ammonium chloride, octane-1, one or more in 8-distearyl dimethyl ammonium chloride, dodecane-1,12-distearyl dimethyl ammonium chloride tensio-active agent.
In order to solve above-mentioned second technical problem, the invention provides the bitumen emulsion that a kind of emulsifier content is lower, comprise pitch, emulsifying agent, stablizer and water, wherein the content of each component is by mass percentage: pitch 55 ~ 70%, emulsifying agent 0.05 ~ 0.5%, stablizer 0.5 ~ 2%, surplus is water, wherein said emulsifying agent refers to above-mentioned Compound asphalt emulsifier, described Compound asphalt emulsifier is made up of cation quaternary ammonium salt single linked list surface-active agent and Gemini surface active agent, the mass ratio of described cation quaternary ammonium salt single linked list surface-active agent and Gemini surface active agent is 1-2:1.
Described cation quaternary ammonium salt single linked list surface-active agent is one or more in Dodecyl trimethyl ammonium chloride, tetradecyl trimethyl ammonium chloride, palmityl trimethyl ammonium chloride, octadecyl trimethyl ammonium chloride tensio-active agent.
Described Gemini surface active agent is two octadecyldimethyl ammonium halide tensio-active agents.
Described pair of octadecyldimethyl ammonium halide tensio-active agent is ethane-1,2-distearyl dimethyl ammonium chloride, propane-1,3-distearyl dimethyl ammonium chloride, butane-1,4-distearyl dimethyl ammonium chloride, hexane-1,6-distearyl dimethyl ammonium chloride, octane-1, one or more in 8-distearyl dimethyl ammonium chloride, dodecane-1,12-distearyl dimethyl ammonium chloride tensio-active agent.
Described stablizer is NaCl, CaCl
2, FeCl
3, FeCl
2, MgCl
2, AlCl
3, NaNO
3, Na
3pO
4, MgSO
4, CaCO
3, K
2sO
4, NH
4one or more in Cl.
In order to solve above-mentioned 3rd technical problem, the invention provides the preparation method of the lower bitumen emulsion of a kind of emulsifier content, it is characterized in that, comprising the following steps:
(1) by massfraction be 55 ~ 70% asphalt heating melt, Heating temperature is 150 ± 0.5 DEG C;
(2) take the emulsifying agent that massfraction is 0.05 ~ 0.5%, wherein the mass ratio of cation quaternary ammonium salt single linked list surface-active agent and Gemini surface active agent is 1-2:1, after being dissolved in water, is mixed with soap lye, 65 DEG C of constant temperature water baths;
(3) stablizer that massfraction is 0.5 ~ 2% is taken, after being dissolved in water, 65 DEG C of constant temperature water baths;
(4) soap lye that step (2) obtains is stirred on high-shearing dispersion emulsifying machine, the pitch that step (1) heats is joined in soap lye, through the shearing of mulser, pulverizing and mixing and emulsifying, make pitch with tiny microparticulate in containing in the aqueous solution of emulsifying agent, form oil-in-water uniform and stable heterogeneous dispersion system, this system is emulsified bitumen;
(5) stablizer that step (3) is dissolved is joined in emulsified bitumen prepared by step (4), be bitumen emulsion.
The invention has the advantages that, the invention discloses a kind of Compound asphalt emulsifier for the preparation of bitumen emulsion, this emulsifying agent is made up of cation quaternary ammonium salt single linked list surface-active agent and the composite of Gemini surface active agent, use bitumen emulsion prepared by this composite emulsifier, the usage quantity of emulsifying agent has had significant reduction, mostly there is the large shortcoming of dosage of surfactant in the bitumen emulsion overcoming preparation at present, and the bitumen emulsion of preparation is well-behaved, meets the examination criteria of JTJ052-2000 test method.
Accompanying drawing explanation
Fig. 1 is bitumen emulsion microphotograph.
Embodiment
Below in conjunction with specific embodiment, set forth the present invention further.The experimental technique used in following embodiment if no special instructions, is ordinary method.Material used in following embodiment, reagent etc., if no special instructions, all can obtain from commercial channels.Should be understood that these embodiments are only not used in for illustration of the present invention to limit the scope of the invention.
Embodiment 1
Take pitch 35.6g, constant temperature 60 minutes in the baking oven of 150 ± 0.5 DEG C; Take octadecyl trimethyl ammonium chloride 0.0300, ethane-1,2-distearyl dimethyl ammonium chloride 0.0182g, add 14 ml deionized water and dissolve, after liquid to be emulsified dissolves completely, to be put in the water-bath of 65 DEG C constant temperature 20 minutes; Take NaCl0.696g, add 8 ml deionized water and dissolve, to be put in the water-bath of 65 DEG C constant temperature 20 minutes; After pitch and emulsion constant temperature, high-shearing dispersion emulsifying machine disperses 5 minutes with 16000rpm rotating speed, finally NaCl solution is joined in bitumen emulsion, be final bitumen emulsion.
Embodiment 2
Take pitch 32g, constant temperature 60 minutes in the baking oven of 150 ± 0.5 DEG C; Take octadecyl trimethyl ammonium chloride 0.0422g, ethane-1,2-distearyl dimethyl ammonium chloride 0.0268g, add 14 ml deionized water and dissolve, after liquid to be emulsified dissolves completely, to be put in the water-bath of 65 DEG C constant temperature 20 minutes; Take NaCl0.696g, add 8 ml deionized water and dissolve, to be put in the water-bath of 65 DEG C constant temperature 20 minutes; After pitch and emulsion constant temperature, high-shearing dispersion emulsifying machine disperses 5 minutes with 16000rpm rotating speed, finally NaCl solution is joined in bitumen emulsion, be final bitumen emulsion.
Embodiment 3
Take pitch 35g, constant temperature 60 minutes in the baking oven of 150 ± 0.5 DEG C; Take octadecyl trimethyl ammonium chloride 0.0420g, ethane-1,2-distearyl dimethyl ammonium chloride 0.0428g, add 14 ml deionized water and dissolve, after liquid to be emulsified dissolves completely, to be put in the water-bath of 65 DEG C constant temperature 20 minutes; Take NaCl0.5568g, add 8 ml deionized water and dissolve, to be put in the water-bath of 65 DEG C constant temperature 20 minutes; After pitch and emulsion constant temperature, high-shearing dispersion emulsifying machine disperses 5 minutes with 16000rpm rotating speed, finally NaCl solution is joined in bitumen emulsion, be final bitumen emulsion.
Embodiment 4
Take pitch 34g, constant temperature 60 minutes in the baking oven of 150 ± 0.5 DEG C; Take octadecyl trimethyl ammonium chloride 0.0874g, ethane-1,2-distearyl dimethyl ammonium chloride 0.0624g, add 14 ml deionized water and dissolve, after liquid to be emulsified dissolves completely, to be put in the water-bath of 65 DEG C constant temperature 20 minutes; Take NaCl0.5568g, add 8 ml deionized water and dissolve, to be put in the water-bath of 65 DEG C constant temperature 20 minutes; After pitch and emulsion constant temperature, high-shearing dispersion emulsifying machine disperses 5 minutes with 16000rpm rotating speed, finally NaCl solution is joined in bitumen emulsion, be final bitumen emulsion.
Embodiment 5
Take pitch 34.8g, constant temperature 60 minutes in the baking oven of 150 ± 0.5 DEG C; Take octadecyl trimethyl ammonium chloride 0.0920g, propane-1,3-distearyl dimethyl ammonium chloride 0.0566g, add 14 ml deionized water and dissolve, after liquid to be emulsified dissolves completely, to be put in the water-bath of 65 DEG C constant temperature 20 minutes; Take NaCl0.5568g, add 8 ml deionized water and dissolve, to be put in the water-bath of 65 DEG C constant temperature 20 minutes; After pitch and emulsion constant temperature, high-shearing dispersion emulsifying machine disperses 5 minutes with 16000rpm rotating speed, finally NaCl solution is joined in bitumen emulsion, be final bitumen emulsion.
Embodiment 6
Take pitch 35.2g, constant temperature 60 minutes in the baking oven of 150 ± 0.5 DEG C; Take octadecyl trimethyl ammonium chloride 0.1835g, hexane-1,6-distearyl dimethyl ammonium chloride 0.0984g, add 14 ml deionized water and dissolve, after liquid to be emulsified dissolves completely, to be put in the water-bath of 65 DEG C constant temperature 20 minutes; Take NaCl0.5568g, add 8 ml deionized water and dissolve, to be put in the water-bath of 65 DEG C constant temperature 20 minutes; After pitch and emulsion constant temperature, high-shearing dispersion emulsifying machine disperses 5 minutes with 16000rpm rotating speed, finally NaCl solution is joined in bitumen emulsion, be final bitumen emulsion.
Embodiment 7
Take pitch 32.8g, constant temperature 60 minutes in the baking oven of 150 ± 0.5 DEG C; Take octadecyl trimethyl ammonium chloride 0.1703g, octane-1,8-distearyl dimethyl ammonium chloride 0.0646g, add 14 ml deionized water and dissolve, after liquid to be emulsified dissolves completely, to be put in the water-bath of 65 DEG C constant temperature 20 minutes; Take NaCl0.5568g, add 8 ml deionized water and dissolve, to be put in the water-bath of 65 DEG C constant temperature 20 minutes; After pitch and emulsion constant temperature, high-shearing dispersion emulsifying machine disperses 5 minutes with 16000rpm rotating speed, finally NaCl solution is joined in bitumen emulsion, be final bitumen emulsion.
Embodiment 8
Take pitch 34.4g, constant temperature 60 minutes in the baking oven of 150 ± 0.5 DEG C; Take octadecyl trimethyl ammonium chloride 0.1121g, dodecane-1,12-distearyl dimethyl ammonium chloride 0.0564g, add 14 ml deionized water and dissolve, after liquid to be emulsified dissolves completely, to be put in the water-bath of 65 DEG C constant temperature 20 minutes; Take NaCl0.5568g, add 8 ml deionized water and dissolve, to be put in the water-bath of 65 DEG C constant temperature 20 minutes; After pitch and emulsion constant temperature, high-shearing dispersion emulsifying machine disperses 5 minutes with 16000rpm rotating speed, finally NaCl solution is joined in bitumen emulsion, be final bitumen emulsion.
Embodiment 9
Take pitch 34g, constant temperature 60 minutes in the baking oven of 150 ± 0.5 DEG C; Take tetradecyl trimethyl ammonium chloride 0.1021g, ethane-1,2-distearyl dimethyl ammonium chloride 0.0523g, add 14 ml deionized water and dissolve, after liquid to be emulsified dissolves completely, to be put in the water-bath of 65 DEG C constant temperature 20 minutes; Take NaCl0.696g, add 8 ml deionized water and dissolve, to be put in the water-bath of 65 DEG C constant temperature 20 minutes; After pitch and emulsion constant temperature, high-shearing dispersion emulsifying machine disperses 5 minutes with 16000rpm rotating speed, finally NaCl solution is joined in bitumen emulsion, be final bitumen emulsion.
Embodiment 10
Take pitch 35g, constant temperature 60 minutes in the baking oven of 150 ± 0.5 DEG C; Take tetradecyl trimethyl ammonium chloride 0.0806g, hexane-1,6-distearyl dimethyl ammonium chloride 0.0672g, add 14 ml deionized water and dissolve, after liquid to be emulsified dissolves completely, to be put in the water-bath of 65 DEG C constant temperature 20 minutes; Take NaCl0.5568g, add 8 ml deionized water and dissolve, to be put in the water-bath of 65 DEG C constant temperature 20 minutes; After pitch and emulsion constant temperature, high-shearing dispersion emulsifying machine disperses 5 minutes with 16000rpm rotating speed, finally NaCl solution is joined in bitumen emulsion, be final bitumen emulsion.
Embodiment 11
Take pitch 34g, constant temperature 60 minutes in the baking oven of 150 ± 0.5 DEG C; Take palmityl trimethyl ammonium chloride 0.1220g, propane-1,3-distearyl dimethyl ammonium chloride 0.0766g, add 14 ml deionized water and dissolve, after liquid to be emulsified dissolves completely, to be put in the water-bath of 65 DEG C constant temperature 20 minutes; Take NaCl0.696g, add 8 ml deionized water and dissolve, to be put in the water-bath of 65 DEG C constant temperature 20 minutes; After pitch and emulsion constant temperature, high-shearing dispersion emulsifying machine disperses 5 minutes with 16000rpm rotating speed, finally NaCl solution is joined in bitumen emulsion, be final bitumen emulsion.
Embodiment 12
Take pitch 36g, constant temperature 60 minutes in the baking oven of 150 ± 0.5 DEG C; Take palmityl trimethyl ammonium chloride 0.0985g, dodecane-1,12-distearyl dimethyl ammonium chloride 0.0498g, add 14 ml deionized water and dissolve, after liquid to be emulsified dissolves completely, to be put in the water-bath of 65 DEG C constant temperature 20 minutes; Take NaCl0.696g, add 8 ml deionized water and dissolve, to be put in the water-bath of 65 DEG C constant temperature 20 minutes; After pitch and emulsion constant temperature, high-shearing dispersion emulsifying machine disperses 5 minutes with 16000rpm rotating speed, finally NaCl solution is joined in bitumen emulsion, be final bitumen emulsion.
Mass ratio containing composite emulsifier in bitumen emulsion prepared by the present invention is between 0.05-0.5%, composite by emulsifying agent, decrease the usage quantity of emulsifying agent, and the bitumen emulsion of preparation is well-behaved, as can be seen from microscopic examination, the bitumen emulsion particle diameter of preparation, between 10-100 μm, can be found out by above example, all can prepare well-behaved bitumen emulsion when the mass ratio of single linked list surface-active agent and Gemini surface active agent is between 1-2:1.
Bitumen emulsion microphotograph is shown in Fig. 1, and example formulations is in table 1, and performance index are in table 2.
The weight percent of each component of table 1 example medium pitch emulsion
Bitumen emulsion basic mechanical design feature prepared by table 2.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (4)
1. a Compound asphalt emulsifier, it is characterized in that, described Compound asphalt emulsifier is made up of cation quaternary ammonium salt single linked list surface-active agent and Gemini surface active agent, described cation quaternary ammonium salt single linked list surface-active agent is Dodecyl trimethyl ammonium chloride, tetradecyl trimethyl ammonium chloride, one or more in palmityl trimethyl ammonium chloride tensio-active agent, described Gemini surface active agent is ethane-1, 2-distearyl dimethyl ammonium chloride, propane-1, 3-distearyl dimethyl ammonium chloride, butane-1, 4-distearyl dimethyl ammonium chloride, hexane-1, 6-distearyl dimethyl ammonium chloride, octane-1, 8-distearyl dimethyl ammonium chloride, dodecane-1, one or more in 12-distearyl dimethyl ammonium chloride tensio-active agent, the mass ratio of described cation quaternary ammonium salt single linked list surface-active agent and Gemini surface active agent is 1-2:1.
2. the bitumen emulsion that an emulsifier content is lower, it is characterized in that, comprise pitch, emulsifying agent, stablizer and water, wherein the content of each component is by mass percentage: pitch 55 ~ 70%, emulsifying agent 0.05 ~ 0.5%, stablizer 0.5 ~ 2%, surplus is water, wherein said emulsifying agent refers to Compound asphalt emulsifier according to claim 1, described Compound asphalt emulsifier is made up of cation quaternary ammonium salt single linked list surface-active agent and Gemini surface active agent, and the mass ratio of described cation quaternary ammonium salt single linked list surface-active agent and Gemini surface active agent is 1-2:1.
3. the bitumen emulsion that a kind of emulsifier content according to claim 2 is lower, is characterized in that, described stablizer is NaCl, FeCl
3, FeCl
2, MgCl
2, AlCl
3, NaNO
3, Na
3pO
4, MgSO
4, K
2sO
4, NH
4one or more in Cl.
4. the preparation method of the bitumen emulsion that the emulsifier content described in Claims 2 or 3 is lower, is characterized in that, comprise the following steps:
(1) by massfraction be 55 ~ 70% asphalt heating melt, Heating temperature is 150 ± 0.5 DEG C;
(2) take the emulsifying agent that massfraction is 0.05 ~ 0.5%, wherein the mass ratio of cation quaternary ammonium salt single linked list surface-active agent and Gemini surface active agent is 1-2:1, after being dissolved in water, is mixed with soap lye, 65 DEG C of constant temperature water baths;
(3) stablizer that massfraction is 0.5 ~ 2% is taken, after being dissolved in water, 65 DEG C of constant temperature water baths;
(4) soap lye that step (2) obtains is stirred on high-shearing dispersion emulsifying machine, the pitch that step (1) heats is joined in soap lye, through the shearing of mulser, pulverizing and mixing and emulsifying, make pitch with tiny microparticulate in containing in the aqueous solution of emulsifying agent, form oil-in-water uniform and stable heterogeneous dispersion system, this system is emulsified bitumen;
(5) stablizer that step (3) is dissolved is joined in emulsified bitumen prepared by step (4), be bitumen emulsion.
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| CN103525099B true CN103525099B (en) | 2015-10-28 |
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| CN104324656B (en) * | 2014-09-30 | 2017-01-11 | 广州蓝月亮实业有限公司 | Dodecanol glucose gemini surfactant compound and preparation method thereof |
| CN105837092B (en) * | 2016-04-06 | 2018-05-04 | 河海大学 | A kind of method that desulfurization ash cures room temperature pitch |
| CN107827772B (en) * | 2017-11-16 | 2020-05-26 | 江苏苏博特新材料股份有限公司 | Cation modified asphalt emulsifier, preparation method and application thereof |
| CN108359256B (en) * | 2018-04-05 | 2020-12-29 | 鄂尔多斯市路泰新材料科技发展有限公司 | Emulsified modified asphalt based on zwitterionic Gemini emulsifier and preparation method thereof |
| CN108795073A (en) * | 2018-06-11 | 2018-11-13 | 江苏金阳新材料科技有限公司 | A kind of imidazoline type amphoteric ion Compound asphalt emulsifier and application |
| CN111978746A (en) * | 2020-08-12 | 2020-11-24 | 华南理工大学 | Modified rubber asphalt and preparation method thereof |
| CN111978977B (en) * | 2020-08-26 | 2022-02-22 | 陕西邦达诺环保科技有限公司 | Efficient water-soluble compound aging oil demulsifier and preparation method thereof |
| CN113622258B (en) * | 2021-08-19 | 2022-11-18 | 广东省第四建筑工程有限公司 | Construction method for plastic track playground |
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| CN1635051A (en) * | 2003-12-25 | 2005-07-06 | 中国石油化工股份有限公司 | Asphalt aqueous emulsion and method for preparation |
| CN1715333A (en) * | 2005-08-05 | 2006-01-04 | 倪红霞 | Cation asphalt anti-collapse agent emulsion and its producing method and using method |
| CN1978042A (en) * | 2005-11-30 | 2007-06-13 | 北京航空航天大学 | Tripolymer sufactant and preparing method |
| CN102516093A (en) * | 2011-12-08 | 2012-06-27 | 江苏博特新材料有限公司 | Gemini type asphalt emulsifier and preparation method thereof |
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| US8210263B2 (en) * | 2007-07-03 | 2012-07-03 | Baker Hughes Incorporated | Method for changing the wettability of rock formations |
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|---|---|---|---|---|
| CN1635051A (en) * | 2003-12-25 | 2005-07-06 | 中国石油化工股份有限公司 | Asphalt aqueous emulsion and method for preparation |
| CN1715333A (en) * | 2005-08-05 | 2006-01-04 | 倪红霞 | Cation asphalt anti-collapse agent emulsion and its producing method and using method |
| CN1978042A (en) * | 2005-11-30 | 2007-06-13 | 北京航空航天大学 | Tripolymer sufactant and preparing method |
| CN102516093A (en) * | 2011-12-08 | 2012-06-27 | 江苏博特新材料有限公司 | Gemini type asphalt emulsifier and preparation method thereof |
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