CN104559237B - Non-ionic liquid crystal asphalt warm mixing agent and preparation method thereof - Google Patents
Non-ionic liquid crystal asphalt warm mixing agent and preparation method thereof Download PDFInfo
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- CN104559237B CN104559237B CN201310496048.1A CN201310496048A CN104559237B CN 104559237 B CN104559237 B CN 104559237B CN 201310496048 A CN201310496048 A CN 201310496048A CN 104559237 B CN104559237 B CN 104559237B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
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Abstract
The invention discloses a non-ionic liquid crystal asphalt warm mixing agent and a preparation method thereof. The asphalt warm mixing agent comprises the following components in parts by weight: 3.5-55.5 parts of polyglycerol fatty acid ester, 0.1-20 parts of fatty alcohol and 24.5-96.4 parts of water. The preparation method comprises the following steps: (1) uniformly mixing water and polyglycerol fatty acid ester in a container according to the ratio; (2) adding fatty alcohol into the mixture obtained in the step (1) for uniform mixing, and leaving the mixture to stand for a period of time to obtain the non-ionic liquid crystal asphalt warm mixing agent. The non-ionic liquid crystal asphalt warm mixing agent disclosed by the invention can effectively reduce the high-temperature viscosity of asphalt and has the advantages of stable performance, available raw material, simple and convenient preparation method, wide application range and the like.
Description
Technical field
The present invention relates to a kind of asphalt warm-mix agent and preparation method thereof, more particularly, to a kind of nonionic liquid crystal type Colophonium warm mix
Agent and preparation method thereof.
Background technology
Since asphalt applications are since road, have developed into ripe asphalt and be mainly hot-mix asphalt mixture,
But hot-mix asphalt mixture exists, and to mix and stir temperature high with temperature of mating formation, harmful gas emission is high, asphalt is easily aging
Etc. defect, cause many Ecological and environmental problems.Warm-Mix Bitumen Mixture is a kind of new material of environmental protection and energy saving, it have with
The unanimously even more excellent pavement performance of corresponding hot-mix asphalt mixture, but can mix and stir at lower temperatures and mat formation, greatly
Reduce greatly energy resource consumption in process of production and soot emissions, so that economic benefit and the ecological value is significantly improved.With
Hot-mix asphalt mixture is compared, according to mix type, different Warm-Mix Bitumen Mixture mix and stir temperature typically can reduce by 15 DEG C-
40 DEG C, some that hot-mix asphalt mixture leads to because high temperature mixes and stirs can be alleviated well using Warm-Mix Bitumen Mixture and ask
Topic.
By adding zeolite, organic viscosity reduction additive, surface activity warm-mixing agent in compound or soft or hard can be adopted at present
The Colophonium all kinds of methods such as combine mix and stir temperature come the construction to reduce compound, and these compounds all can be referred to as warm-mixed asphalt to be mixed
Close material.Compared with hot-mix asphalt mixture, according to mix type, the mixing and stirring temperature and typically can drop of different Warm-Mix Bitumen Mixture
Low 15 ~ 40 DEG C, using Warm-Mix Bitumen Mixture can alleviate that hot-mix asphalt mixture leads to because high temperature mixes and stirs well several
Individual problem:
Organic additive by the advantage of itself fusing point relatively low (100 DEG C about), chemically angle is changing Colophonium
Viscosity-temperature curve, thus that reduces Colophonium and building stones mixes and stirs temperature, but 60 DEG C of viscosity that the method generally also can reduce Colophonium drop
The low high-temperature stability of compound；Using the higher emulsified asphalt of solid content, mix and stir with building stones at a temperature of 80～120 DEG C,
Also can achieve warm mix, which is low compared with the temperature of hot asphalt about 30～50 DEG C；Zeolites product is all by mixing in Colophonium
Material introduces moisture during mixing and stirring so that Colophonium produces foam thus reducing asphalt viscosity, realizes bituminous mixture temperature
Reduce.But inevitably have some moisture entrapment in process of production between Colophonium and aggregate Interface so that Colophonium
There is potential Moisture Damage in compound.If amount of water is excessive, substantial amounts of vapor can be produced or cause bumping, if the water yield
Very few, then foaming effect is bad.
At present, the domestic warm-mixed asphalt additive product voluntarily researched and developed is mainly organic and surface activity class, such as public
Open patent cn102093731a, patent cn102408602a, patent cn101899218a, patent cn101831187a, patent
Cnl02795801a etc., although the warm-mixed asphalt additive product of domestic research and development is attained by the fall of same kind of products at abroad substantially
Temp effect, and successfully can produce Warm-Mix Bitumen Mixture, but also inevitably all exist complex manufacturing, high energy consumption,
Reduce the defects such as performance of asphalt mixture.
Content of the invention
The invention provides a kind of nonionic liquid crystal type asphalt warm-mix agent and preparation method thereof.The asphalt warm-mix agent of the present invention
The high temperature viscosity of Colophonium can effectively be reduced, and there is stable performance, raw material easily gathers, preparation method is simple and application model
The advantages of enclose extensive.
Nonionic liquid crystal type asphalt warm-mix agent of the present invention, includes in parts by weight:
Polyglyceryl fatty acid ester: 3.5～55.5 parts, preferably 5～45 parts；
Fatty alcohol: 0.1～20 part, preferably 1～10 part；
Water: 24.5～96.4 parts, preferably 45～94 parts.
Described polyglyceryl fatty acid ester is selected from the pungent decanoin of polyglycereol, polyglyceryl laurate, polyglycereol pungent capric acid breast
Acid esters, polyglycereol lauric acid lactate, polyglycerol lactate, polyglycereol acetate, polyglycerol monooleate, polyglycereol succinic acid
One or more of laurate, polyglycereol succinate or polyglycereol citrate.
Described fatty alcohol is selected from n-octyl alcohol, 2-Ethylhexyl Alcohol, n-nonyl alcohol (1 nonyl alcohol), Decanol (1-decanol), just
One or more of undecyl alcohol, lauryl alcohol (dodecanol), spermol (cetyl alcohol) or stearyl alcohol.
It is also possible to need to add other additives according to practical application in nonionic liquid crystal type asphalt warm-mix agent of the present invention,
As dispersant, antistripping agent, foaming agent, age resister, polymer modifiers and magnesium oxide, calcium oxide and phosphorus pentoxide etc.
Oxide, the addition of additive accounts for the 0.1%～9.9% of warm-mixing agent weight, and each constituent content sum of asphalt warm-mix agent is 100%.
The preparation method of nonionic liquid crystal type asphalt warm-mix agent of the present invention, including following content:
(1) press proportioning by water and polyglyceryl fatty acid ester mix homogeneously in a reservoir；
(2) fatty alcohol is added in step (1) material, mix homogeneously, standing a period of time, obtains nonionic liquid crystal type
Asphalt warm-mix agent.
Wherein, the mixing temperature of step (1) is 40 ~ 60 DEG C, and incorporation time is 0.5 ~ 2 hour；The mixing temperature of step (2)
For 40-60 DEG C, incorporation time is 0.5 ~ 1 hour；Time of repose is 1 ~ 4 hour.
Application in asphalt mixes and stirs for the nonionic liquid crystal type asphalt warm-mix agent of the present invention, including following content: will
Building stones, Colophonium and asphalt warm-mix agent uniform mixing, are subsequently adding breeze or Machine-made Sand, uniform mixing；Wherein mix and stir temperature
For 110 ~ 120 DEG C, nonionic asphalt warm-mix agent adds according to the 2wt～10wt% of asphalt content.
Asphalt warm-mix agent of the present invention can also obtain warm-mixed asphalt prior to Colophonium mix homogeneously, then again by warm-mixed asphalt
It is directly used in asphalt preparation.Wherein said warm-mixed asphalt, by weight part are counted, including 100 parts of Colophonium, Colophonium warm mix
Agent is 1 ~ 10 part, preferably 2 ~ 8 parts.Wherein said Colophonium is bi tumenf orr oad, polymer modified asphalt etc., such as No. 70,90
Number, No. 110 Colophoniumes etc..
Nonionic liquid crystal type asphalt warm-mix agent of the present invention is compared with traditional asphalt warm-mixing agent, has the advantage that
(1), in the nonionic liquid crystal type asphalt warm-mix agent of the present invention, polyglyceryl fatty acid ester and fatty alcohol are gentle
Nonionic surfactant, environmental friendliness little to the zest of human body, environmental protection.
(2) nonionic liquid crystal type asphalt warm-mix agent of the present invention, has layered liquid crystal structure, dispersion effect is good, good stability,
The surface activity of Colophonium can greatly be reduced, and Colophonium forms stable emulsion, effect between layers in liquid crystal structure simultaneously
Power is weaker, in the presence of external force, is easier to slide, thus has good " lubrication " performance, under both effects, this
Invention asphalt warm-mix agent can greatly reduce the high temperature viscosity of Colophonium, therefore can reduce the mixing and stirring of asphalt, pave and
Compacting temperature, a large amount of discharges reducing smog and harmful substance, reduce to harm and environmental pollution.
(3) the nonionic liquid crystal type asphalt warm-mix agent of the present invention, has layered liquid crystal structure and lives compared to common surface
Property agent viscosity much higher, therefore reduce asphalt high-temperature viscosity while, its 60 DEG C of viscosity will not be reduced, thus not
Reduce the anti-rut behavior of Colophonium.
Specific embodiment
With reference to embodiment, the present invention is further illustrated, but is not so limited the present invention.
Embodiment 1
Polyglyceryl laurate: 12 parts
Lauryl alcohol: 2.5 parts
Water: 84.5 parts.
By proportioning, polyglyceryl laurate and deionized water are added container, stir 1 hour at 40 DEG C；Add Laurel
Alcohol, 40 DEG C of constant temperature stirs 1 hour, stands 3 hours, obtain nonionic liquid crystal type asphalt warm-mix agent under room temperature.
Embodiment 2
Polyglycerol monooleate: 30 parts
Stearyl alcohol: 1.7 parts
Water: 68.3 parts.
By proportioning, polyglycerol monooleate and deionized water are added container, stir 1 hour at 50 DEG C；Add Hard Fat
Alcohol, 50 DEG C of constant temperature stirs 1.5 hours, stands 3.5 hours, obtain nonionic liquid crystal type asphalt warm-mix agent under room temperature.
Embodiment 3
Polyglyceryl laurate: 41 parts
N-octyl alcohol: 2.5 parts
Water: 56.5 parts.
By proportioning, polyglyceryl laurate and deionized water are added container, stir 1 hour at 60 DEG C；Add just pungent
Alcohol, 60 DEG C of constant temperature stirs 1.5 hours, stands 4 hours, obtain nonionic liquid crystal type asphalt warm-mix agent under room temperature.
Embodiment 4
Polyglycereol citrate: 23 parts
Spermol: 2.8 parts
Water: 74.2 parts.
By proportioning, polyglycereol citrate and deionized water are added container, stir 1 hour at 45 DEG C；Add spermaceti
Alcohol, 45 DEG C of constant temperature stirs 1 hour, stands 3 hours, obtain nonionic liquid crystal type asphalt warm-mix agent under room temperature.
Comparative example 1
Polyglyceryl laurate: 30.5 parts
Water: 69.5 parts.
By proportioning, polyglyceryl laurate and deionized water are added container, stir 1.5 hours at 50 DEG C；Quiet under room temperature
Put 3 hours, obtain nonionic liquid crystal type asphalt warm-mix agent.
Comparative example 1
Stearyl alcohol: 9.5 parts
Water: 90.5 parts.
By proportioning, stearyl alcohol and deionized water are added container, stir 1.5 hours at 40 DEG C；2 hours are stood under room temperature,
Obtain nonionic asphalt warm-mix agent.
It is respectively adopted traditional according to the method that " standard specification for construction and acceptance of highway asphalt pavement " (jtg f40-2004) specifies
Heat is mixed mode and applies the warm mix mode of additive of the present invention to carry out mixing and stirring of asphalt, and carries out performance of asphalt mixture
Test.Wherein, by embodiment 1,2,3,4 and comparative example 1,2 preparation warm-mixed asphalt additive according to asphalt content 2wt%
~ 7wt%, is added in asphalt in the way of spraying, is prepared into compound test specimen 1#、2#、3#、4#、5#、6#.This test is adopted
With 90#a level Colophonium, bitumen aggregate ratio is 5.5%, and the level of building stones is joined and is shown in Table 1, and performance of asphalt mixture test result is shown in Table 2.
Table 1 building stones level is joined.
Table 2 performance of asphalt mixture test result.
From table 2, warm-mixed asphalt additive of the present invention will be able to drip on the premise of not affecting performance of asphalt mixture
The compacting temperature that mixes and stirs of blue or green compound reduces by more than 20 DEG C, can be widely applied to the asphalt construction of various climatological regions.
Property indices are satisfied by the requirement of " standard specification for construction and acceptance of highway asphalt pavement " (jtg f40-2004).
The above, be only presently preferred embodiments of the present invention, not the present invention imposed any restrictions.Every according to invention skill
Any simple modification, change and equivalence changes that art is substantially made to above example, all still fall within technical solution of the present invention
Protection domain in.
Claims (10)
1. a kind of nonionic liquid crystal type asphalt warm-mix agent it is characterised in that: include in parts by weight:
Polyglyceryl fatty acid ester: 3.5～55.5 parts；
Fatty alcohol: 0.1～20 part；
Water: 24.5～96.4 parts.
2. according to the asphalt warm-mix agent described in claim 1 it is characterised in that: include in parts by weight:
Polyglyceryl fatty acid ester: 5～45 parts；
Fatty alcohol: 1～10 part；
Water: 45～94 parts.
3. according to the asphalt warm-mix agent described in claim 1 or 2 it is characterised in that: described polyglyceryl fatty acid ester is selected from poly-
Caprylic decanoin, polyglyceryl laurate, polyglycereol pungent capric acid lactate, polyglycereol lauric acid lactate, polyglycereol lactic acid
Ester, polyglycereol acetate, polyglycerol monooleate, polyglycereol succinic acid laurate, polyglycereol succinate or polyglycereol lemon
One or more of lemon acid esters.
4. according to the asphalt warm-mix agent described in claim 1 or 2 it is characterised in that: described fatty alcohol be selected from n-octyl alcohol, 2-
One or more of ethyl hexanol, n-nonyl alcohol, Decanol, positive undecyl alcohol, lauryl alcohol, spermol or stearyl alcohol.
5. according to the asphalt warm-mix agent described in claim 1 or 2 it is characterised in that: in asphalt warm-mix agent add dispersant, anti-stripping
Fall agent, foaming agent, age resister, polymer modifiers and magnesium oxide, calcium oxide and phosphorus pentoxide, the addition of additive
Account for the 0.1%～9.9% of warm-mixing agent weight.
6. the asphalt warm-mix agent described in a kind of claim 1 preparation method it is characterised in that: include following content: (1) is by joining
Than by water and polyglyceryl fatty acid ester mix homogeneously in a reservoir；(2) fatty alcohol is added in step (1) material, mixing is all
Even, standing a period of time, obtain nonionic liquid crystal type asphalt warm-mix agent.
7. in accordance with the method for claim 6 it is characterised in that: the mixing temperature of step (1) be 40 ~ 60 DEG C, incorporation time
For 0.5 ~ 2 hour；The mixing temperature of step (2) is 40-60 DEG C, and incorporation time is 0.5 ~ 1 hour.
8. in accordance with the method for claim 6 it is characterised in that: the time of repose in step (2) be 1 ~ 4 hour.
9. a kind of application in asphalt mixes and stirs for the asphalt warm-mix agent described in claim 1 it is characterised in that include as
Lower content: building stones, Colophonium and asphalt warm-mix agent uniform mixing are subsequently adding breeze or Machine-made Sand, uniform mixing；Wherein
Mix and stir temperature and be 110 ~ 120 DEG C, nonionic asphalt warm-mix agent adds according to the 2wt～10wt% of asphalt content.
10. described in a kind of claim 1 asphalt warm-mix agent preparation warm-mixed asphalt it is characterised in that: by weight, bag
Include: 100 parts of Colophonium, asphalt warm-mix agent is 1 ~ 10 part.
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| CN104559237B true CN104559237B (en) | 2017-01-25 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107266918A (en) * | 2017-06-28 | 2017-10-20 | 常州市雄图纺织有限公司 | A kind of asphalt warm-mix agent and preparation method thereof |
| CN107501969A (en) * | 2017-10-10 | 2017-12-22 | 唐林元 | One kind foaming viscosity reduction type warm-mixing agent and preparation method thereof |
| PT3502215T (en) * | 2017-12-21 | 2020-04-30 | Lapide Gmbh | Reduction of pollutant emissions from combustion engines |
| WO2020233768A1 (en) * | 2019-05-17 | 2020-11-26 | Lapide Gmbh | Reduction of pollutant emissions of internal combustion engines |
| CN111423705B (en) * | 2020-04-09 | 2022-03-15 | 苏州丰倍生物科技有限公司 | Environment-friendly asphalt modifier and preparation method and application thereof |
| CN113136087A (en) * | 2021-05-14 | 2021-07-20 | 常州利尔德通新材料科技有限公司 | High-viscosity-reduction warm mixing agent for warm-mixed asphalt |
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| CN101070433A (en) * | 2007-05-17 | 2007-11-14 | 张洪武 | Emulsified pitch and preparing method |
| CN101602862A (en) * | 2009-07-01 | 2009-12-16 | 天津大学 | Warm-mixed asphalt additive and preparation method thereof |
| CN101831187A (en) * | 2010-04-30 | 2010-09-15 | 北京化工大学 | Rubber modified asphalt warm-mixing agent, preparation method and application |
| CN101899218A (en) * | 2010-07-22 | 2010-12-01 | 天津市市政工程研究院 | Asphalt warm-mix agent and asphalt mixture mixed by same as well as preparation methods thereof |
| US7922802B2 (en) * | 2005-11-03 | 2011-04-12 | Cognis Ip Management Gmbh | PIT emulsions |
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2013
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Patent Citations (6)
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|---|---|---|---|---|
| US2877129A (en) * | 1955-07-05 | 1959-03-10 | Standard Oil Co | Asphalt composition containing a fatty ester and a process of making it |
| US7922802B2 (en) * | 2005-11-03 | 2011-04-12 | Cognis Ip Management Gmbh | PIT emulsions |
| CN101070433A (en) * | 2007-05-17 | 2007-11-14 | 张洪武 | Emulsified pitch and preparing method |
| CN101602862A (en) * | 2009-07-01 | 2009-12-16 | 天津大学 | Warm-mixed asphalt additive and preparation method thereof |
| CN101831187A (en) * | 2010-04-30 | 2010-09-15 | 北京化工大学 | Rubber modified asphalt warm-mixing agent, preparation method and application |
| CN101899218A (en) * | 2010-07-22 | 2010-12-01 | 天津市市政工程研究院 | Asphalt warm-mix agent and asphalt mixture mixed by same as well as preparation methods thereof |
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