CN106832969A - A kind of asphalt material with self-repair function and preparation method thereof - Google Patents
A kind of asphalt material with self-repair function and preparation method thereof Download PDFInfo
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- CN106832969A CN106832969A CN201611269337.8A CN201611269337A CN106832969A CN 106832969 A CN106832969 A CN 106832969A CN 201611269337 A CN201611269337 A CN 201611269337A CN 106832969 A CN106832969 A CN 106832969A
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- Prior art keywords
- asphalt
- self
- microcapsules
- repair function
- repair
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L95/00—Compositions of bituminous materials, e.g. asphalt, tar, pitch
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/40—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the curing agents used
- C08G59/50—Amines
- C08G59/5006—Amines aliphatic
- C08G59/502—Polyalkylene polyamines
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/40—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the curing agents used
- C08G59/62—Alcohols or phenols
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
Abstract
The invention belongs to road engineering asphalt material technical field, it particularly relates to arrive a kind of asphalt material with self-repair function and preparation method thereof.The asphalt material includes asphalt, microcapsules and curing agent, and three's mass ratio is 100:(0.1~10):(0.05~5)；The asphalt is《Standard specification for construction and acceptance of highway asphalt pavement》Matrix 70# asphalt, 90# asphalt or modified oil pitch specified in JTG F40 2004；The microcapsules are made up of cyst wall and capsule-core, and cyst material is modified urea-formaldehyde resin, and core materials are epoxy resin, and the two mass ratio is (1:3)~(3:1).Compared with prior art, the asphalt material with self-repair function of the present invention has formula simple, the obvious advantage of efficiency high, effect.
Description
Technical field
The invention belongs to road engineering asphalt material technical field, it particularly relates to arrive a kind of with self-repair function
Asphalt material and preparation method thereof.
Background technology
" interface " that bituminous paving is directly related as road with driving, has special heavy in whole pavement structure
The meaning wanted.During the long-term use of bituminous paving, the test of various complex environments is experienced at its structure, some are small
Cracking and local damage can be produced inevitably, such as can not in time control these micro-damages, and these micro-cracks will be in outside
Extended in the presence of load and ftractureed, and then the service life of pavement structure, structure heavy then that whole road can be destroyed can be influenceed.Institute
How timely and effectively to repair the crackle that occurs in road surface and main asking of damaging that the person that becomes road work is concerned about
Topic.Pitch possesses certain self-healing capability in itself, but closely related with residing temperature, the time repaired, in practical application
Seldom there is long-time hot stage for its generation self-healing.Therefore, it is necessary to seek a kind of new technology, to inside asphalt pavement
The crackle of appearance and damage can in time be perceived and actively repaired, and its self-healing capability be lifted, to extend road surface service life.
Self-repairing microcapsule is the selfreparing means that a class is carried out with material supply mode.Cyst wall is taken to coat the hand of capsule-core
Microcapsules, when material produces micro-crack, are produced stimulation, cyst wall rupture to discharge core materials by section, and core materials run into point
The catalyst in system is dispersed in, goes out to react in micro-crack, improved substrate performance, delay material damage, extension material lifetime.
There is applicability wide, mature preparation process due to microcapsules selfreparing, small influenceed on substrate performance, the concern being subject to
Research is the most extensive.At present, the research for self-repairing microcapsule technology being applied into pitch is also relatively fewer.
The content of the invention
In order to solve the above technical problems, the invention provides one kind improve asphalt performance, increase the service life with from
Asphalt material of repair function and preparation method thereof.
A kind of asphalt material with self-repair function of the present invention, the asphalt material includes asphalt, micro-
Capsule and curing agent, three's mass ratio are 100:(0.1~10):(0.05~5)；The asphalt is《Highway asphalt
Pavement construction technical specification》Matrix 70# asphalt, 90# asphalt or modified petroleum drip specified in JTG F40-2004
It is blue or green；The microcapsules are made up of cyst wall and capsule-core, and cyst material is modified urea-formaldehyde resin, and core materials are epoxy resin, the two
Mass ratio is (1:3)~(3:1).
Asphalt material with self-repair function of the present invention, the modifying agent of the modified urea-formaldehyde resin is silane idol
Connection agent KH-550, KH-560 or KH-570.
Asphalt material with self-repair function of the present invention, the epoxy resin is E51 or/and E44.
Asphalt material with self-repair function of the present invention, the curing agent is fatty amine curing agent or 6- hydroxyl first
Base -4- isopropyl -7- Methoxy-1-naphthoic Acid methyl esters.
A kind of asphalt material with self-repair function of the present invention, the fatty amine is diethylenetriamine, three second
One or more in alkene tetramine or TEPA.
The preparation method of asphalt material of the present invention, the preparation method is concretely comprised the following steps:During preparation, temperature is controlled
It is 160 DEG C~180 DEG C, adds asphalt, microcapsules and curing agent high shear agitation, stir speed (S.S.) is 500~
2000r/min, mixing time is 5~10min, is cooled to room temperature, obtains final product the pitch with self-repair function.
Principle:When producing micro-crack in pitch, stimulate effect microcapsule wall to rupture, discharge epoxy resin therein, epoxy
Resin meets with the curing agent being dispersed in pitch, and curing cross-linking reaction occurs, and is repaired its micro-crack, improves pitch
Can, extend its service life.Compared with prior art, the asphalt material with self-repair function of the present invention has formula
Simply, the obvious advantage of efficiency high, effect.
Brief description of the drawings
Fig. 1 is to test schematic diagram using the bitumen ductility self-healing after asphalt material of the present invention.
Specific embodiment
With reference to specific embodiment to of the present invention with the asphalt material of self-repair function and its preparation side
Method is described further, but protection scope of the present invention is not limited to this.
Embodiment 1
70# asphalt 100g are weighed, 160 DEG C are heated to, (Lauxite modifying agent is KH- to add 0.5g microcapsules
550, epoxy resin is E51, wall material:Core=2:1) and 0.25g curing agent T31, high shear dispersion instrument stirring 5min, stirring
Speed is 1000r/min, is cooled to room temperature and obtains the pitch with self-repair function.Tried using the ductility self-healing of pitch
Test, analysis microcapsules add the influence to pitch self-healing performance.Bitumen ductility self-healing test procedure is as follows：According to《Highway
Engineering pitch and Asphalt Mixture Experiment code》T 0605-2011 carry out ductility test in JTG E20-2011, prepare pitch and prolong
Degree sample, one section is cut open with blade in the middle part of test specimen, produces destruction (such as accompanying drawing 1), and non-collapse dept is 1 yuan of sample bottom two
The thickness of coin, making the sample of destruction carries out selfreparing, after the completion of selfreparing, according to T 0605-2011 test ductilities La, definition
LaWith the sample ductility (L without destructionb) ratio (La/Lb) it is the ductility healing rate of pitch.The specific test result such as institute of table 1
Show:
Influence of the microcapsules addition (0.5%) of table 1 to pitch three norms
The result of table 1 shows, after addition microcapsules 0.5%, the change of pitch three norms is little, still conforms to technical requirements.Will
After sample broke, selfreparing experiment is carried out, it is as a result as follows：
When being not added with microcapsules, temperature is repaired for 20 DEG C, repair time are 3 hours, 10 DEG C of ductility L after reparationaIt is 6cm,
Repair rate Lb/La=24%；After addition microcapsules 0.5%, LbIt is 9cm, repair rate is 37.5%, hence it is evident that higher than un-added sample
Product.
Embodiment 2
70# asphalt 100g are weighed, 160 DEG C are heated to, (Lauxite modifying agent is KH- to add 0.5g microcapsules
550, epoxy resin is E51, wall material:Core=2:1) and 0.25g curing agent T31, high shear dispersion instrument stirring 5min, stirring
Speed is 1000r/min, is cooled to room temperature and obtains the pitch with self-repair function.Tried using the ductility self-healing of pitch
Test, analysis microcapsules add the influence to pitch self-healing performance.Temperature is repaired for 30 DEG C, repair time are 3 hours, as a result such as
Under：
When being not added with microcapsules, temperature is repaired for 30 DEG C, repair time are 3 hours, 10 DEG C of ductility L after reparationaIt is 7cm,
Repair rate Lb/La=28%；After addition microcapsules 0.5%, LbIt is 10cm, repair rate is 41.6%, hence it is evident that higher than un-added sample
Product, and higher than the repair rate in embodiment 1.
Embodiment 3
70# asphalt 100g are weighed, 160 DEG C are heated to, (Lauxite modifying agent is KH- to add 0.5g microcapsules
550, epoxy resin is E51, wall material:Core=2:1) and 0.25g curing agent T31, high shear dispersion instrument stirring 5min, stirring
Speed is 1000r/min, is cooled to room temperature and obtains the pitch with self-repair function.Tried using the ductility self-healing of pitch
Test, analysis microcapsules add the influence to pitch self-healing performance.Temperature is repaired for 10 DEG C, repair time are 3 hours, as a result such as
Under：
When being not added with microcapsules, temperature is repaired for 10 DEG C, repair time are 3 hours, 10 DEG C of ductility L after reparationaIt is 5cm,
Repair rate Lb/La=20%；After addition microcapsules 0.5%, LbIt is 6cm, repair rate is 25%, slightly higher than un-added sample,
But less than the repair rate in embodiment 1,2.
Embodiment 4
70# asphalt 100g are weighed, 160 DEG C are heated to, (Lauxite modifying agent is KH- to add 0.5g microcapsules
560, epoxy resin is E51, wall material:Core=2:1) and 0.25g curing agent T31, high shear dispersion instrument stirring 5min, stirring
Speed is 1000r/min, is cooled to room temperature and obtains the pitch with self-repair function.Tried using the ductility self-healing of pitch
Test, analysis microcapsules add the influence to pitch self-healing performance.Temperature is repaired for 30 DEG C, repair time are 1 hour, as a result such as
Under：
When being not added with microcapsules, temperature is repaired for 30 DEG C, repair time are 1 hour, 10 DEG C of ductility L after reparationaIt is 3cm,
Repair rate Lb/La=12%；After addition microcapsules 0.5%, LbIt is 5cm, repair rate is 20.8%, higher than un-added sample, but
Less than the repair rate in embodiment 1.
Embodiment 5
70# asphalt 100g are weighed, 160 DEG C are heated to, (Lauxite modifying agent is KH- to add 0.5g microcapsules
550, epoxy resin is E51, wall material:Core=2:1) and 0.25g curing agent diethylenetriamines, high shear dispersion instrument stirring
5min, stir speed (S.S.) is 1000r/min, is cooled to room temperature and obtains the pitch with self-repair function.Using the ductility of pitch
Self-healing is tested, and analysis microcapsules add the influence to pitch self-healing performance.Temperature is repaired for 20 DEG C, repair time are 3 small
When, it is as a result as follows：
When being not added with microcapsules, temperature is repaired for 20 DEG C, repair time are 3 hours, 10 DEG C of ductility L after reparationaIt is 5cm,
Repair rate Lb/La=20%；After addition microcapsules 0.5%, LbIt is 8cm, repair rate is 32%, hence it is evident that higher than un-added sample.
Embodiment 6
90# asphalt 100g are weighed, 160 DEG C are heated to, (Lauxite modifying agent is KH- to add 0.5g microcapsules
550, epoxy resin is E51, wall material:Core=2:1) and 0.25g curing agent diethylenetriamines, high shear dispersion instrument stirring
5min, stir speed (S.S.) is 1000r/min, is cooled to room temperature and obtains the pitch with self-repair function.Using the ductility of pitch
Self-healing is tested, and analysis microcapsules add the influence to pitch self-healing performance.Temperature is repaired for 20 DEG C, repair time are 3 small
When, it is as a result as follows：
When being not added with microcapsules, temperature is repaired for 20 DEG C, repair time are 3 hours, 10 DEG C of ductility L after reparationaIt is 5cm,
Repair rate Lb/La=20%；After addition microcapsules 0.5%, LbIt is 8cm, repair rate is 32%, hence it is evident that higher than un-added sample.
Embodiment 7
70# asphalt 100g are weighed, 160 DEG C are heated to, (Lauxite modifying agent is KH- to add 0.8g microcapsules
550, epoxy resin is E51, wall material:Core=2:And 0.35g curing agent 6- methylol -4- isopropyl -7- methoxyl groups -1- 1)
2-methyl naphthoate, high shear dispersion instrument stirring 5min, stir speed (S.S.) is 1000r/min, be cooled to room temperature obtain have review one's lessons by oneself
The pitch of multiple function.Tested using the ductility self-healing of pitch, analysis microcapsules add the influence to pitch self-healing performance.Repair
Rewarming degree is 20 DEG C, repair time is 3 hours, as a result as follows：
Influence of the microcapsules addition (0.8%) of table 2 to pitch three norms
When being not added with microcapsules, temperature is repaired for 20 DEG C, repair time are 3 hours, 10 DEG C of ductility L after reparationaIt is 5cm,
Repair rate Lb/La=20%；After addition microcapsules 0.8%, repair time is 1 hour, LbIt is 10.2cm, repair rate is 46.5%,
Apparently higher than un-added sample.
Embodiment 8
70# asphalt 100g are weighed, 160 DEG C are heated to, (Lauxite modifying agent is KH- to add 0.8g microcapsules
550, epoxy resin is E51, wall material:Core=3:1) and 0.30g curing agent diethylenetriamines, high shear dispersion instrument stirring
5min, stir speed (S.S.) is 1000r/min, is cooled to room temperature and obtains the pitch with self-repair function.Using the ductility of pitch
Self-healing is tested, and analysis microcapsules add the influence to pitch self-healing performance.Temperature is repaired for 20 DEG C, repair time are 3 small
When, it is as a result as follows：
When being not added with microcapsules, temperature is repaired for 20 DEG C, repair time are 3 hours, 10 DEG C of ductility L after reparationaIt is 5cm,
Repair rate Lb/La=20%；After addition microcapsules 0.8%, LbIt is 9cm, repair rate is 39.1%, hence it is evident that higher than un-added sample
Product.
Embodiment 9
70# asphalt 100g are weighed, 170 DEG C are heated to, (Lauxite modifying agent is KH- to add 0.8g microcapsules
550, epoxy resin is E51, wall material:Core=3:1) and 0.30g curing agent diethylenetriamines, high shear dispersion instrument stirring
8min, stir speed (S.S.) is 800r/min, is cooled to room temperature and obtains the pitch with self-repair function.Using pitch ductility from
Healing assay, analysis microcapsules add the influence to pitch self-healing performance.Temperature is repaired for 20 DEG C, repair time are 3 hours,
Result is as follows：
When being not added with microcapsules, temperature is repaired for 20 DEG C, repair time are 3 hours, 10 DEG C of ductility L after reparationaIt is 6cm,
Repair rate Lb/La=24%；After addition microcapsules 0.8%, LbIt is 10cm, repair rate is 43.4%, hence it is evident that higher than un-added sample
Product.
Embodiment 10
70# asphalt 100g are weighed, 160 DEG C are heated to, (Lauxite modifying agent is KH- to add 0.8g microcapsules
550, epoxy resin is E51, wall material:Core=2:1) and 0.35g curing agent T31, high shear dispersion instrument stirring 5min, stirring
Speed is 1000r/min, is cooled to room temperature and obtains the pitch with self-repair function.Tried using the ductility self-healing of pitch
Test, analysis microcapsules add the influence to pitch self-healing performance.Temperature is repaired for 20 DEG C, repair time are 3 hours, as a result such as
Under：
When being not added with microcapsules, temperature is repaired for 20 DEG C, repair time are 3 hours, 10 DEG C of ductility L after reparationaIt is 5cm,
Repair rate Lb/La=21%；After addition microcapsules 0.8%, LbIt is 9cm, repair time is 3 hours, and repair rate is 37.1%, bright
Aobvious is higher than un-added sample.
Claims (6)
1. a kind of asphalt material with self-repair function, it is characterised in that the asphalt material includes asphalt, microcapsules
And curing agent, three's mass ratio is 100:(0.1~10):(0.05~5)；The asphalt is《Asphalt highway
Construction technique normalizing》Matrix 70# asphalt, 90# asphalt or modified oil pitch specified in JTG F40-2004；Institute
State microcapsules to be made up of cyst wall and capsule-core, cyst material is modified urea-formaldehyde resin, core materials are epoxy resin, the two mass ratio
It is (1:3)~(3:1).
2. the asphalt material with self-repair function according to claim 1, it is characterised in that the modified urea-formaldehyde resin
Modifying agent be silane resin acceptor kh-550, KH-560 or KH-570.
3. the asphalt material with self-repair function according to claim 1, it is characterised in that the epoxy resin is
E51 or/and E44.
4. the asphalt material with self-repair function according to claim 1, it is characterised in that the curing agent is fat
Amine hardener or 6- methylol -4- isopropyl -7- Methoxy-1-naphthoic Acid methyl esters.
5. the asphalt material with self-repair function according to claim 1, it is characterised in that the fatty amine is diethyl
One or more in alkene triamine, triethylene tetramine or TEPA.
6. the preparation method of asphalt material according to claim 1, it is characterised in that the specific steps of the preparation method
For:During preparation, control temperature for 160 DEG C~180 DEG C, add asphalt, microcapsules and curing agent high shear agitation, stir
Speed is mixed for 500~2000r/min, mixing time is 5~10min, is cooled to room temperature, obtains final product the drip with self-repair function
It is blue or green.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611269337.8A CN106832969A (en) | 2016-12-31 | 2016-12-31 | A kind of asphalt material with self-repair function and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611269337.8A CN106832969A (en) | 2016-12-31 | 2016-12-31 | A kind of asphalt material with self-repair function and preparation method thereof |
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| CN106832969A true CN106832969A (en) | 2017-06-13 |
Family
ID=59117496
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| CN201611269337.8A Pending CN106832969A (en) | 2016-12-31 | 2016-12-31 | A kind of asphalt material with self-repair function and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112852020A (en) * | 2020-12-30 | 2021-05-28 | 长安大学 | Double-component epoxy resin self-repairing microcapsule material for asphalt pavement, and preparation method and use method thereof |
| CN113030449A (en) * | 2021-03-10 | 2021-06-25 | 河北工业大学 | Experimental method for self-repairing microcapsules in pressure-triggered asphalt |
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| CN103396652A (en) * | 2013-07-09 | 2013-11-20 | 杨林江 | Bituminous concrete crack self-healing microcapsule and preparation method of same |
| CN103965644A (en) * | 2014-05-13 | 2014-08-06 | 天津工业大学 | High-stability microcapsule used for asphalt self-repair |
| CN103965512A (en) * | 2014-05-13 | 2014-08-06 | 天津工业大学 | Illegal cooking oil microcapsule and application thereof |
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2016
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| CN103396652A (en) * | 2013-07-09 | 2013-11-20 | 杨林江 | Bituminous concrete crack self-healing microcapsule and preparation method of same |
| CN103965644A (en) * | 2014-05-13 | 2014-08-06 | 天津工业大学 | High-stability microcapsule used for asphalt self-repair |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112852020A (en) * | 2020-12-30 | 2021-05-28 | 长安大学 | Double-component epoxy resin self-repairing microcapsule material for asphalt pavement, and preparation method and use method thereof |
| CN113030449A (en) * | 2021-03-10 | 2021-06-25 | 河北工业大学 | Experimental method for self-repairing microcapsules in pressure-triggered asphalt |
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