CN110819129B - Functional assembled magnesium-aluminum-based layered double-hydroxide modifier and preparation method and application thereof - Google Patents
Functional assembled magnesium-aluminum-based layered double-hydroxide modifier and preparation method and application thereof Download PDFInfo
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
- C08K9/06—Ingredients treated with organic substances with silicon-containing compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
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Abstract
The invention discloses a functional assembled magnalium-based layered double-hydroxide modifier and a preparation method thereof, wherein the modifier is prepared by co-functionally assembling LDHs intercalation modification and surface modifier organic modification by an anionic antioxidant active component; by grafting the surface modifier of the long-chain branch organic functional group to the surface of the LDHs, the polar group on the surface of the LDHs is reduced by means of the chemical action between the surface modifier and the LDHs, the agglomeration among LDHs particles is inhibited, the dispersibility of the LDHs in the asphalt is improved, meanwhile, the lipophilicity of the LDHs can be enhanced by the introduced long-chain branch organic functional group, the compatibility stability with the asphalt is enhanced, and the thermal oxidation resistance and ultraviolet aging resistance of the asphalt are obviously improved.
Description
Technical Field
The invention belongs to the technical field of asphalt modification, and particularly relates to a functional assembled magnesium aluminum base Layered Double Hydroxide (LDHs) modifier, and a preparation method and application thereof.
Background
The asphalt pavement has the advantages of comfortable driving, low noise, easy maintenance, high safety and the like, and is widely applied to highway construction. The asphalt material is easy to age under the influence of external environmental factors (such as heat, ultraviolet light, oxygen and the like), and the ageing of the asphalt material causes the asphalt pavement to be easy to generate diseases such as rutting, pot holes, cracking and the like, thereby seriously influencing the service life of the asphalt pavement. Asphalt aging is mainly divided into thermal oxygen aging and ultraviolet aging, both of which can cause cracking of asphalt material properties, and the two aging show obvious coupling effect. The anti-aging technology of the asphalt material only aims at a single aspect, and the anti-aging capability of the asphalt material cannot be effectively improved.
In order to improve the anti-aging performance of asphalt, patent CN102181161B discloses an anti-aging modified asphalt of magnesium aluminum based Layered Double Hydroxides (LDHs), the adopted LDHs have a unique laminate structure, so that the LDHs can shield ultraviolet light, and the anti-ultraviolet aging capability of the asphalt can be improved by adding the LDHs into the asphalt. However, because the surface of the LDHs laminate contains a large number of polar groups, agglomeration is easy to occur, and the LDHs laminate cannot be uniformly dispersed in asphalt, so that the anti-ultraviolet aging capability of the LDHs is limited and cannot be fully exerted. On the other hand, although the LDHs have better anti-ultraviolet aging capability, the LDHs have general performance in the aspect of anti-thermal oxidation aging. Patent CN103526891B discloses a method for simultaneously enhancing the uv aging resistance and the thermo-oxidative aging resistance of materials by blending LDHs with antioxidants, but if only LDHs are simply blended with antioxidants, the antioxidants continuously migrate from the asphalt matrix to the surface, resulting in a significant decrease in the thermo-oxidative aging resistance improving effect and long-term durability.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a functional assembled magnalium-based Layered Double Hydroxide (LDHs) modifier for modifying asphalt to obtain an asphalt material with excellent ultraviolet aging resistance, thermal oxidation aging resistance and comprehensive performance.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a functional assembled magnalium-based Layered Double Hydroxide (LDHs) modifier is composed of LDHs, an anionic antioxidant active component and a surface modifier, and the weight parts of the raw materials are respectively as follows: 60-85 parts of LDHs, 12-35 parts of anionic antioxidant active ingredients and 3-15 parts of surface modifier. The functional assembled LDHs is prepared by the co-functional assembly of LDHs intercalation modification by an anionic antioxidant active component and LDHs surface organic modification by a surface modifier.
The LDHs are obtained according to the preparation method disclosed in CN 102181161B.
The anionic antioxidant active component is any one of vulcanized diphenylamine and diisooctyl diphenylamine.
The surface modifier is any one of methacryloxy undecyl methyldiethoxysilane, hexadecyl trimethoxy silane and octadecyl trimethoxy silane.
The preparation method of the functional assembled LDHs modifier comprises the following steps:
1) firstly, putting LDHs in a muffle furnace at 550 ℃ for 120 min to remove interlayer anions of the LDHs, then uniformly stirring the treated LDHs and an anionic antioxidant active ingredient solution (the volume ratio of the anionic antioxidant active ingredient to water is 8: 2) at low speed for 60 min, and finally carrying out vacuum filtration, repeated washing, drying and crushing on the LDHs modified by intercalation to obtain the LDHs modified by the anionic antioxidant active ingredient intercalation;
2) adding the prepared intercalated modified LDHs into an ethanol-water solution with the volume ratio of 95:5, stirring for 30 min at 50 ℃, and slowly dropwise adding acetic acid to control the pH value of the mixed solution to be 3-4;
3) adding a surface modifier into the mixed solution obtained in the step 2), quickly stirring and reacting for 150 min under the conditions of 50 ℃ and pH of 3-4, then raising the temperature to 70 ℃, and continuing to react for 30 min; and finally, carrying out vacuum filtration, washing, drying and grinding on the modified LDHs into powder with the particle size of less than 0.075 mm to obtain the functional assembled LDHs modifier.
The invention also discloses functionally assembled LDHs modified asphalt, which consists of asphalt and functionally assembled LDHs, wherein the weight parts of the raw materials are as follows: 85-99 parts of asphalt and 1-15 parts of functional assembled LDHs.
The asphalt is road petroleum asphalt, the penetration degree at 25 ℃ is 60 dmm-100 dmm, the softening point is 40 ℃ -55 ℃, and the ductility at 10 ℃ is 15 cm-25 cm.
The preparation method of the functional assembled LDHs modified asphalt comprises the following steps:
the prepared functional assembled LDHs modifier is added into asphalt, and melt blending is carried out for 90 min at the temperature of 150 ℃ and the shearing rate of 5000 rpm, so that the modified asphalt with excellent thermal-oxidative aging resistance, ultraviolet aging resistance and comprehensive performance can be prepared.
The invention has the following beneficial effects:
1) LDHs have excellent ultraviolet aging resistance, but the anti-oxidation aging resistance of LDHs is general, the invention utilizes the adjustable interlayer spacing of LDHs, intercalates the active component of anionic antioxidant between LDHs layers, enhances the anti-thermal oxidation aging resistance of LDHs, and simultaneously prevents the antioxidant from migrating to the surface in asphalt by intercalating the antioxidant between the LDHs layers and also can prevent the antioxidant from migrating to the surface by virtue of the space limited action of the LDHs laminates so as to enhance the long-acting property of the antioxidant.
2) According to the invention, the surface modifier is grafted to the surface of the LDHs after intercalation modification, and the surface modifier reacts with polar groups on the surface of the LDHs, so that the agglomeration among the LDHs particles is inhibited, the dispersibility of the LDHs in asphalt is obviously improved, and meanwhile, organic functional groups are introduced into the surface of the LDHs by the surface modifier, so that the compatibility stability of the LDHs in asphalt can be obviously improved.
3) According to the invention, the functional assembled LDHs is used for modifying the asphalt, so that the thermal oxidation resistance and ultraviolet aging resistance of the asphalt can be enhanced simultaneously, and the obtained modified asphalt has excellent comprehensive performance.
Detailed Description
In order to better understand the present invention, the following examples are further provided to illustrate the present invention, but the present invention is not limited to the following examples.
The preparation method of the functional assembled magnesium aluminum based Layered Double Hydroxide (LDHs) modifier adopted in the following examples is as follows: 1) firstly, putting LDHs in a muffle furnace at 550 ℃ for 120 min to remove interlayer anions of the LDHs, then uniformly stirring the treated LDHs and an anionic antioxidant active ingredient solution (the volume ratio of the anionic antioxidant active ingredient to water is 8: 2) at low speed for 60 min, and finally carrying out vacuum filtration, repeated washing, drying and crushing on the LDHs modified by intercalation to obtain the LDHs modified by the anionic antioxidant active ingredient intercalation;
2) adding the prepared intercalated modified LDHs into an ethanol-water solution with the volume ratio of 95:5, stirring for 30 min at 50 ℃, and slowly dropwise adding acetic acid to control the pH value of the mixed solution to be 3-4;
3) adding a surface modifier into the mixed solution obtained in the step 2, quickly stirring and reacting for 150 min at 50 ℃ and pH of 3-4, then raising the temperature to 70 ℃, and continuing to react for 30 min; and finally, carrying out vacuum filtration, washing, drying and grinding on the modified LDHs into powder with the particle size of less than 0.075 mm to obtain the functional assembled LDHs modifier.
Example 1:
the functional assembled LDHs required in the embodiment 1 can be prepared according to the method steps of the functional assembled LDHs modifier, wherein the anionic antioxidant active component is vulcanized diphenylamine, the surface modifier is methacryloxyundecylmethyldiethoxysilane, and the raw materials are as follows in parts by weight: 85 parts of LDHs, 12 parts of vulcanized diphenylamine and 3 parts of methacryloxyundecylmethyldiethoxysilane.
95 parts (the penetration at 25 ℃ is 65 dmm, the softening point is 45 ℃ and the ductility at 10 ℃ is 22 cm) of road petroleum asphalt is selected and heated to be in a flowing state, a high-speed shearing machine is started, 5 parts of the prepared functional assembled LDHs modifier is slowly added under the conditions of 150 ℃ and the shearing speed of 5000 rpm to be melted and blended for 90 min, and the modified asphalt with excellent thermal oxidation aging resistance, ultraviolet aging resistance and comprehensive performance can be obtained.
Comparative example 1:
LDHs are treated in the same way according to the preparation method of the functional assembled LDHs modifier (diphenylamine sulfide is not added in the step 1, methacryloxyundecylmethyldiethoxysilane is not added in the step 3), and a comparative sample a of the functional assembled LDHs in the example 1 is obtained.
The modified asphalt of example 1, comparative sample b, was prepared by following the procedure of example 1 (diphenylamine sulfide and methacryloxyundecylmethyldiethoxysilane were added simultaneously during the preparation of the comparative sample containing functional assembled LDHs, and the amounts of the raw materials were the same as in example 1).
The results of high-temperature storage stability test, short-term thermal oxidative aging (RTFOT) and ultraviolet aging (UV) test, and physical property indexes before and after aging were respectively performed on the asphalt samples prepared in example 1 and comparative example 1, and are shown in tables 1 and 2.
The high-temperature storage stability test result in table 1 shows that the dispersion and compatibility stability of the LDHs subjected to functional assembly modification in asphalt are remarkably improved; the test result in table 2 shows that the functional assembled LDHs modified asphalt has more excellent thermal oxidation aging resistance and ultraviolet aging resistance.
Example 2:
the functional assembled LDHs required in the embodiment 2 can be prepared according to the method steps of the functional assembled LDHs modifier, wherein the anionic antioxidant active component is diphenylamine sulfide, the surface modifier is hexadecyl trimethoxy silane, and the raw materials in parts by weight are as follows: 60 parts of LDHs, 35 parts of vulcanized diphenylamine and 5 parts of hexadecyl trimethoxy silane.
Selecting 91 parts (the penetration degree at 25 ℃ is 65 dmm, the softening point is 45 ℃ and the ductility at 10 ℃ is 22 cm) of road petroleum asphalt, heating to a flowing state, starting a high-speed shearing machine, and slowly adding 9 parts of the prepared functional assembled LDHs modifier at 150 ℃ and the shearing rate of 5000 rpm for melting and blending for 90 min to obtain the modified asphalt with excellent thermal oxidation aging resistance, ultraviolet aging resistance and comprehensive performance.
Comparative example 2:
LDHs are treated in the same way according to the preparation method of the functional assembly LDHs modifier (diphenylamine sulfide is not added in the step 1, and hexadecyl trimethoxy silane is not added in the step 3), and a comparative sample c of the functional assembly LDHs of the example 2 is obtained.
A comparative sample d of the modified asphalt of example 2 was obtained by following the preparation method of the modified asphalt of example 2 (in the comparative sample of the functional assembly LDHs, diphenylamine sulfide and hexadecyl trimethoxysilane were added simultaneously, and the amount of the raw materials was the same as that of example 2).
The asphalt samples prepared in example 2 and comparative test 2 were subjected to a high temperature storage stability test, a short term thermal oxidative aging (RTFOT) test and an ultraviolet aging (UV) test, respectively, and physical property indexes before and after the aging were measured, and the results are shown in tables 3 and 4.
The results of the high-temperature storage stability test in table 3 show that the dispersion and compatibility stability of the LDHs subjected to functional assembly modification in asphalt are remarkably improved; the test result in table 4 shows that the functional assembled LDHs modified asphalt has more excellent thermal oxidation aging resistance and ultraviolet aging resistance.
Example 3:
the functional assembled LDHs required in the embodiment 3 can be prepared according to the method steps of the functional assembled LDHs modifier, wherein the anionic antioxidant active component is vulcanized diphenylamine, the surface modifier is octadecyltrimethoxysilane, and the raw materials are as follows in parts by weight: 70 parts of LDHs, 15 parts of vulcanized diphenylamine and 15 parts of octadecyltrimethoxysilane.
Selecting 85 parts (the penetration degree at 25 ℃ is 65 dmm, the softening point is 45 ℃ and the ductility at 10 ℃ is 22 cm) of road petroleum asphalt, heating to a flowing state, starting a high-speed shearing machine, and slowly adding 15 parts of the prepared functional assembled LDHs modifier at 150 ℃ and the shearing rate of 5000 rpm for melting and blending for 90 min to obtain the modified asphalt with excellent thermal oxidation aging resistance, ultraviolet aging resistance and comprehensive performance.
Comparative example 3:
LDHs are treated in the same way according to the preparation method of the functional assembly LDHs modifier (diphenylamine sulfide is not added in the step 1, and octadecyltrimethoxysilane is not added in the step 3), and a comparative sample e of the functional assembly LDHs in the example 3 is obtained.
A comparative sample f of the modified asphalt of example 3 was obtained by following the procedure of example 3 (in the comparative sample of LDHs added with functionalized assemblies, diphenylamine sulfide and octadecyltrimethoxysilane were added at the same time, and the amounts of the raw materials were the same as those in example 3).
The results obtained by performing a high temperature storage stability test, a short term thermal oxidative aging (RTFOT) test and an ultraviolet aging (UV) test on the asphalt samples prepared in example 3 and comparative example 3, respectively, and testing some physical property indexes before and after the aging are shown in tables 5 and 6.
The results of high-temperature storage stability tests in table 5 show that the dispersion and compatibility stability of the LDHs subjected to functional assembly modification in asphalt are remarkably improved; the test result in table 6 shows that the functional assembled LDHs modified asphalt has more excellent thermal oxidation aging resistance and ultraviolet aging resistance.
Example 4:
the functional assembled LDHs required in the embodiment 4 can be prepared according to the method steps of the functional assembled LDHs modifier, wherein the active component of the anionic antioxidant is diisooctyl diphenylamine, the surface modifier is methacryloxyundecylmethyldiethoxysilane, and the raw materials are as follows in parts by weight: 65 parts of LDHs, 20 parts of diisooctyl diphenylamine and 15 parts of methacryloxyundecylmethyldiethoxysilane.
99 parts (the penetration at 25 ℃ is 65 dmm, the softening point is 45 ℃ and the ductility at 10 ℃ is 22 cm) of road petroleum asphalt is selected and heated to be in a flowing state, a high-speed shearing machine is started, 1 part of the prepared functional assembled LDHs modifier is slowly added under the conditions of 150 ℃ and the shearing speed of 5000 rpm to be melted and blended for 90 min, and the modified asphalt with excellent thermal oxidation aging resistance, ultraviolet aging resistance and comprehensive performance can be obtained.
Comparative example 4:
LDHs are treated in the same way according to the preparation method of the functional assembled LDHs modifier (no diisooctyl diphenylamine is added in the step 1, and no methacryloxyundecylmethyldiethoxysilane is added in the step 3), and a comparative sample j of the functional assembled LDHs in the embodiment 4 is obtained.
A comparative sample h of the modified asphalt of example 4 was obtained by following the procedure of example 4 (in the comparative sample of the functional assembly LDHs, diisooctyl diphenylamine and methacryloxyundecylmethyldiethoxysilane were added simultaneously, and the amounts of the raw materials were the same as in example 4).
The results of high temperature storage stability test, short term thermal oxidative aging (RTFOT) and ultraviolet aging (UV) of the asphalt samples prepared in example 4 and comparative example 4 were shown in tables 7 and 8, respectively, and some physical property indexes before and after the aging were measured.
The results of the high-temperature storage stability test in table 7 show that the dispersion and compatibility stability of the LDHs subjected to functional assembly modification in asphalt are remarkably improved; the test result in table 8 shows that the functional assembled LDHs modified asphalt has more excellent thermal oxidation aging resistance and ultraviolet aging resistance.
Example 5:
the functional assembled LDHs required in the embodiment 5 can be prepared according to the method steps of the functional assembled LDHs modifier, wherein the active component of the anionic antioxidant is diisooctyl diphenylamine, the surface modifier is hexadecyl trimethoxy silane, and the raw materials in parts by weight are as follows: 80 parts of LDHs, 12 parts of diisooctyldiphenylamine and 8 parts of hexadecyltrimethoxysilane.
Selecting 88 parts (the penetration degree at 25 ℃ is 65 dmm, the softening point is 45 ℃ and the ductility at 10 ℃ is 22 cm) of road petroleum asphalt, heating to a flowing state, starting a high-speed shearing machine, and slowly adding 12 parts of the prepared functional assembled LDHs modifier at 150 ℃ and the shearing rate of 5000 rpm for melting and blending for 90 min to obtain the modified asphalt with excellent thermal oxidation aging resistance, ultraviolet aging resistance and comprehensive performance.
Comparative example 5:
LDHs are treated in the same way according to the preparation method of the functional assembly LDHs modifier (diisooctyl diphenylamine is not added in the step 1, and hexadecyl trimethoxy silane is not added in the step 3), and a comparison sample k of the functional assembly LDHs in the embodiment 5 is obtained.
The procedure of example 5 was followed (i.e., di-isooctyldiphenylamine and hexadecyltrimethoxysilane were added during the preparation of the reference sample of LDHs, and the amount of the raw materials was the same as that of example 5), to obtain a reference sample of example 5.
The results of high-temperature storage stability test, short-term thermal oxidative aging (RTFOT) and ultraviolet aging (UV) of the asphalt samples prepared in example 5 and comparative example 5 were shown in tables 9 and 10, respectively, and some physical property indexes before and after the aging were measured.
The results of high-temperature storage stability tests in table 9 show that the dispersion and compatibility stability of the LDHs subjected to functional assembly modification in asphalt are remarkably improved; the test result in table 10 shows that the functional assembled LDHs modified asphalt has more excellent thermal oxidation aging resistance and ultraviolet aging resistance.
Example 6:
the functional assembled LDHs required in the embodiment 6 can be prepared according to the method steps of the functional assembled LDHs modifier, wherein the active component of the anionic antioxidant is diisooctyl diphenylamine, the surface modifier is octadecyl trimethoxy silane, and the raw materials are as follows in parts by weight: 75 parts of LDHs, 22 parts of diisooctyl diphenylamine and 3 parts of octadecyl trimethoxy silane.
97 parts (the penetration at 25 ℃ is 65 dmm, the softening point is 45 ℃ and the ductility at 10 ℃ is 22 cm) of road petroleum asphalt is heated to be in a flowing state, a high-speed shearing machine is started, 3 parts of the prepared functional assembled LDHs modifier is slowly added under the conditions of 150 ℃ and the shearing speed of 5000 rpm to be melted and blended for 90 min, and the modified asphalt with excellent thermal oxidation aging resistance, ultraviolet aging resistance and comprehensive performance can be obtained.
Comparative example 6:
LDHs are treated in the same way according to the preparation method of the functional assembly LDHs modifier (diisooctyl diphenylamine is not added in the step 1, and octadecyl trimethoxy silane is not added in the step 3), and the comparative sample m of the functional assembly LDHs in the embodiment 6 is obtained.
The operation was carried out according to the method for preparing modified asphalt in example 6 (in the process of adding the comparative sample of functional assembly LDHs, diisooctyl diphenylamine and octadecyl trimethoxy silane were added simultaneously, and the amount of the raw materials was the same as that in example 6), thus obtaining comparative sample n of modified asphalt in example 6.
The results of high-temperature storage stability test, short-term thermal oxidative aging (RTFOT) and ultraviolet aging (UV) of the asphalt samples prepared in example 6 and comparative example 6 were shown in tables 11 and 12, respectively, and some physical property indexes before and after the aging were measured.
The results of the high-temperature storage stability test in table 11 show that the dispersion and compatibility stability of the functional assembled and modified LDHs in asphalt are significantly improved; the test result in table 12 shows that the functional assembled LDHs modified asphalt has more excellent thermal oxidation aging resistance and ultraviolet aging resistance.
All the raw materials listed in the invention, the upper and lower limits and the interval values of all the raw materials can realize the invention, and the examples are not listed.
Claims (4)
1. A functional assembled magnesium aluminum base layered double hydroxide modifier is characterized in that: the modifier comprises the following raw materials in parts by weight: 60-85 parts of LDHs, 12-35 parts of anionic antioxidant active ingredients and 3-15 parts of surface modifier; the anionic antioxidant active ingredient is vulcanized diphenylamine or diisooctyl diphenylamine; the surface modifier is any one of methacryloxy undecyl methyldiethoxysilane, hexadecyl trimethoxy silane and octadecyl trimethoxy silane;
the preparation method of the functional assembled magnesium aluminum base layered double hydroxide modifier comprises the following steps:
1) firstly, putting LDHs in a muffle furnace at 550 ℃ for 120 min, removing interlayer anions of the LDHs, then uniformly stirring the treated LDHs and an anionic antioxidant active component solution at low speed for 60 min, and then carrying out vacuum filtration, repeated washing, drying and crushing on the LDHs subjected to intercalation modification to obtain anionic antioxidant active component intercalation modified LDHs;
2) adding the anionic antioxidant active ingredient intercalation modified LDHs prepared in the step 1) into an ethanol-water solution with a volume ratio of 95:5, stirring for 30 min at 50 ℃, and slowly dropwise adding acetic acid to control the pH of the mixed solution to be 3-4;
3) adding a surface modifier into the mixed solution obtained in the step 2), quickly stirring and reacting for 150 min under the conditions of 50 ℃ and pH of 3-4, then raising the temperature to 70 ℃, and continuing to react for 30 min; and then carrying out vacuum filtration, washing, drying and grinding to obtain powder with the particle size of less than 0.075 mm, thus obtaining the functional assembled magnalium-based layered double hydroxide modifier.
2. The use of the functionalized assembled magnesium aluminum based layered double hydroxide modifier of claim 1 in modified asphalt, wherein the modified asphalt comprises the functionalized assembled magnesium aluminum based layered double hydroxide modifier and asphalt in parts by weight: 85-99 parts of asphalt and 1-15 parts of functionally assembled magnesium-aluminum-based layered double hydroxide modifier.
3. The use of the functionalized assembled magnesium aluminum-based layered double hydroxide modifier in modified asphalt as claimed in claim 2, wherein the asphalt is road petroleum asphalt with a penetration of 60 dmm to 100 dmm at 25 ℃, a softening point of 40 to 55 ℃ and a ductility of 15 cm to 25 cm at 10 ℃.
4. The use of the functionalized assembled magnesium aluminum based layered double hydroxide modifier as claimed in claim 2 in modified asphalt, wherein the modified asphalt is prepared by a method comprising the steps of: adding the functional assembled magnalium base layered double hydroxide modifier into asphalt according to the proportion, and then carrying out melt blending for 90 min under the conditions of 150 ℃, and the shear rate of 5000 rpm, thus obtaining the modified asphalt.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102024505A (en) * | 2010-10-12 | 2011-04-20 | 北京国电富通科技发展有限责任公司 | Silicone oil electric force compound grease and preparation method thereof |
| CN102180614A (en) * | 2011-03-21 | 2011-09-14 | 北京化工大学 | Magnelium base layer-shaped double-hydroxide ultraviolet barrier material used in anti-aging asphalt |
| CN102199359B (en) * | 2011-03-21 | 2012-11-07 | 武汉理工大学 | Anti-aging plastomer modified asphalt coating material with magnalium-based layed double hydroxide and preparation method thereof |
| CN103421332A (en) * | 2013-08-27 | 2013-12-04 | 武汉理工大学 | Anti-aging plastomer modified asphalt coating materials and preparation method thereof |
| CN103421333A (en) * | 2013-08-27 | 2013-12-04 | 武汉理工大学 | Ultraviolet aging resistant plastomer modified asphalt coating materials and preparation method thereof |
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| US11565972B2 (en) * | 2016-08-25 | 2023-01-31 | Cornell University | Bitumen nanocomposites and uses thereof |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102024505A (en) * | 2010-10-12 | 2011-04-20 | 北京国电富通科技发展有限责任公司 | Silicone oil electric force compound grease and preparation method thereof |
| CN102180614A (en) * | 2011-03-21 | 2011-09-14 | 北京化工大学 | Magnelium base layer-shaped double-hydroxide ultraviolet barrier material used in anti-aging asphalt |
| CN102199359B (en) * | 2011-03-21 | 2012-11-07 | 武汉理工大学 | Anti-aging plastomer modified asphalt coating material with magnalium-based layed double hydroxide and preparation method thereof |
| CN103421332A (en) * | 2013-08-27 | 2013-12-04 | 武汉理工大学 | Anti-aging plastomer modified asphalt coating materials and preparation method thereof |
| CN103421333A (en) * | 2013-08-27 | 2013-12-04 | 武汉理工大学 | Ultraviolet aging resistant plastomer modified asphalt coating materials and preparation method thereof |
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