CN109504108A - A kind of weather-proof modified pitch - Google Patents
A kind of weather-proof modified pitch Download PDFInfo
- Publication number
- CN109504108A CN109504108A CN201811388066.7A CN201811388066A CN109504108A CN 109504108 A CN109504108 A CN 109504108A CN 201811388066 A CN201811388066 A CN 201811388066A CN 109504108 A CN109504108 A CN 109504108A
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- Prior art keywords
- pitch
- weather
- asphalt
- modified pitch
- proof modified
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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
- C08L95/00—Compositions of bituminous materials, e.g. asphalt, tar, pitch
- C08L95/005—Aqueous compositions, e.g. emulsions
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
-
- 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
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Road Paving Structures (AREA)
Abstract
The invention mainly relates to technical field of buildings, a kind of weather-proof modified pitch is disclosed, is prepared from the following raw materials: matrix pitch 95 ~ 100, water 2.2 ~ 2.4, nano-titanium dioxide 2.1 ~ 2.3, SBS asphalt modifier 1.7 ~ 1.9, fatty alcohol polyoxyethylene ether ammonium sulfate 1.1 ~ 1.3, asphalt stabilizer 0.3 ~ 0.5, graphene 0.5 ~ 0.7；Weather-proof modified pitch provided by the invention, raw material sources are extensive, and preparation is simple, cheap, weatherability is strong, delaying aging, has stronger antifatigue damaged and anti-rut behavior when high temperature and rainy, it can be avoided appearance embrittlement and cracking when low temperature, stability is high, extends the service life of road；Nano-titanium dioxide and SBS asphalt modifier are added after matrix pitch heating melting, can be improved the mobility and weatherability of pitch, reduces difficulty of construction.
Description
Technical field
The invention mainly relates to technical field of buildings more particularly to a kind of weather-proof modified pitch.
Background technique
Pitch is a kind of waterproof and dampproof and corrosion-resistant organic cementitious material, be mainly used for the industry such as coating, plastics, rubber with
And surfacing etc., when pitch is used for road, with the magnitude of traffic flow and traveling frequency sharp increase, the axis weight of freight is continuous
Increase, it is desirable to further increase road surface resistance to flow, i.e., the ability of Rut resistance under high temperature；Improve flexible and elasticity, i.e. low temperature
The ability of lower cracking resistance, therefore there have been modified pitch that is many kinds of, coming in every shape, but modified pitch changes at present
Property performance is not obvious, and expensive, and modified material price is usually 2 ~ 7 times higher than common petroleum pitch, therefore
The usage amount of modified pitch is few during road construction, hence it is evident that limits modified pitch and promotes and use.
Existing 108530917 A of patent document CN provides a kind of modified pitch, and modified feedstock component is various, prepares
Journey is complicated, hence it is evident that the preparation cost of modified pitch is improved, but the high-temperature stability of modified pitch is undesirable, especially in the summer
In the case of the high temperature and rainy in season, the stability of modified pitch is poor, and fatigue rupture phenomenon and track are more serious.
Summary of the invention
In order to make up the defect of prior art, the object of the present invention is to provide a kind of weather-proof modified pitch.
A kind of weather-proof modified pitch, is made of raw material from the following weight: matrix pitch 95 ~ 100, water 2.2 ~ 2.4, nanometer
Titanium dioxide 2.1 ~ 2.3, SBS asphalt modifier 1.7 ~ 1.9, fatty alcohol polyoxyethylene ether ammonium sulfate 1.1 ~ 1.3, asphalt stabilizer
0.3 ~ 0.5, graphene 0.5 ~ 0.7.
The asphalt stabilizer, is made of raw material from the following weight: zinc acetate 4.1 ~ 4.3, methyl cyclopentadiene 2.4
~ 2.6, ethyl alcohol 7 ~ 8.
A kind of preparation method of weather-proof modified pitch, comprising the following steps:
(1) matrix pitch is heated to 180 ~ 190 DEG C, is transferred in production tank, keeps the temperature 10 ~ 15min, obtain heated asphalt；
(2) nano-titanium dioxide and SBS asphalt modifier are added in heated asphalt, are stirred evenly, heat preservation 20 ~ 30min of swelling,
It can be improved the mobility and weatherability of pitch, reduce difficulty of construction, obtain swelling pitch；
(3) graphene is added in swelling pitch, is stirred evenly, sheared 4 ~ 5 times using colloid mill in 8000 ~ 9000r/min, energy
The crushing resistance and wearability for enough increasing pitch, avoid track occur when high temperature, can extend the service life on road surface, must shear drip
It is green；
(4) by water, fatty alcohol polyoxyethylene ether ammonium sulfate and asphalt stabilizer mix, stir evenly, in 70 ~ 80 DEG C keep the temperature 20 ~
30min, it is green and healthy, later period volatilization toxic component is avoided, guarantees the construction environment of health, is added in shearing pitch, mixing
Uniformly, it is transferred to development tank, in 180 ~ 190 DEG C of 10 ~ 20min of development, the viscosity of pitch is improved, reduces needle penetration, enhance pitch
High temperature and low temperature tolerant performance, improve the bearing capacity on road surface, obtain weather-proof modified pitch.
The development of the step (4), the revolving speed of blender are 15 ~ 17r/min.
The invention has the advantages that weather-proof modified pitch provided by the invention, raw material sources are extensive, and preparation is simple, and price is low
Honest and clean, weatherability is strong, delaying aging, has stronger antifatigue damaged and anti-rut behavior when high temperature and rainy, and when low temperature can keep away
Exempt from embrittlement and cracking occur, stability is high, extends the service life of road；Nanometer titanium dioxide is added after matrix pitch heating melting
Titanium and SBS asphalt modifier can be improved the mobility and weatherability of pitch, reduce difficulty of construction；Graphene is added after swelling,
And multiple low velocity shear is carried out, the crushing resistance and wearability of pitch can be increased, avoid track occur when high temperature, road can be extended
The service life in face；It carries out heat preservation after water, fatty alcohol polyoxyethylene ether ammonium sulfate and asphalt stabilizer are mixed to dissolve each other, green is strong
Health avoids later period volatilization toxic component, guarantees the construction environment of health, adds in shearing pitch and carry out heat preservation development, improve
The viscosity of pitch reduces needle penetration, enhances the high temperature and low temperature tolerant performance of pitch, improves the bearing capacity on road surface, extends road
Face service life.
Specific embodiment
Illustrate the present invention with specific embodiment below.
Embodiment 1
A kind of weather-proof modified pitch, is made of raw material from the following weight: matrix pitch 95, water 2.2, nano-titanium dioxide 2.1,
SBS asphalt modifier 1.7, fatty alcohol polyoxyethylene ether ammonium sulfate 1.1, asphalt stabilizer 0.3, graphene 0.5.
The asphalt stabilizer, is made of raw material from the following weight: zinc acetate 4.1, methyl cyclopentadiene 2.4, second
Alcohol 7.
A kind of preparation method of weather-proof modified pitch, comprising the following steps:
(1) matrix pitch is heated to 180 DEG C, is transferred in production tank, keeps the temperature 10min, obtain heated asphalt；
(2) nano-titanium dioxide and SBS asphalt modifier are added in heated asphalt, are stirred evenly, heat preservation swelling 20min, energy
The mobility and weatherability for enough improving pitch, reduce difficulty of construction, obtain swelling pitch；
(3) graphene is added in swelling pitch, is stirred evenly, sheared 4 times, can be increased in 8000r/min using colloid mill
The crushing resistance and wearability of pitch avoid track occur when high temperature, can extend the service life on road surface, obtain shearing pitch；
(4) water, fatty alcohol polyoxyethylene ether ammonium sulfate and asphalt stabilizer are mixed, is stirred evenly, in 70 DEG C of heat preservation 20min,
It is green and healthy, later period volatilization toxic component is avoided, guarantees the construction environment of health, adds in shearing pitch, is uniformly mixed, turn
Enter to develop tank, in 180 DEG C of development 10min, the revolving speed of blender is 15r/min, improves the viscosity of pitch, reduces needle penetration, increases
The high temperature and low temperature tolerant performance of strong pitch, improve the bearing capacity on road surface, obtain weather-proof modified pitch.
Embodiment 2
A kind of weather-proof modified pitch, is made of raw material from the following weight: matrix pitch 98, water 2.3, nano-titanium dioxide 2.2,
SBS asphalt modifier 1.8, fatty alcohol polyoxyethylene ether ammonium sulfate 1.2, asphalt stabilizer 0.4, graphene 0.6.
The asphalt stabilizer, is made of raw material from the following weight: zinc acetate 4.2, methyl cyclopentadiene 2.5, second
Alcohol 7.5.
A kind of preparation method of weather-proof modified pitch, comprising the following steps:
(1) matrix pitch is heated to 185 DEG C, is transferred in production tank, keeps the temperature 13min, obtain heated asphalt；
(2) nano-titanium dioxide and SBS asphalt modifier are added in heated asphalt, are stirred evenly, heat preservation swelling 25min, energy
The mobility and weatherability for enough improving pitch, reduce difficulty of construction, obtain swelling pitch；
(3) graphene is added in swelling pitch, is stirred evenly, sheared 4 times, can be increased in 8500r/min using colloid mill
The crushing resistance and wearability of pitch avoid track occur when high temperature, can extend the service life on road surface, obtain shearing pitch；
(4) water, fatty alcohol polyoxyethylene ether ammonium sulfate and asphalt stabilizer are mixed, is stirred evenly, in 75 DEG C of heat preservation 25min,
It is green and healthy, later period volatilization toxic component is avoided, guarantees the construction environment of health, adds in shearing pitch, is uniformly mixed, turn
Enter to develop tank, in 185 DEG C of development 15min, the revolving speed of blender is 16r/min, improves the viscosity of pitch, reduces needle penetration, increases
The high temperature and low temperature tolerant performance of strong pitch, improve the bearing capacity on road surface, obtain weather-proof modified pitch.
Embodiment 3
A kind of weather-proof modified pitch, is made of raw material from the following weight: matrix pitch 100, water 2.4, nano-titanium dioxide
2.3, SBS asphalt modifier 1.9, fatty alcohol polyoxyethylene ether ammonium sulfate 1.3, asphalt stabilizer 0.5, graphene 0.7.
The asphalt stabilizer, is made of raw material from the following weight: zinc acetate 4.3, methyl cyclopentadiene 2.6, second
Alcohol 8.
A kind of preparation method of weather-proof modified pitch, comprising the following steps:
(1) matrix pitch is heated to 190 DEG C, is transferred in production tank, keeps the temperature 15min, obtain heated asphalt；
(2) nano-titanium dioxide and SBS asphalt modifier are added in heated asphalt, are stirred evenly, heat preservation swelling 30min, energy
The mobility and weatherability for enough improving pitch, reduce difficulty of construction, obtain swelling pitch；
(3) graphene is added in swelling pitch, is stirred evenly, sheared 5 times, can be increased in 9000r/min using colloid mill
The crushing resistance and wearability of pitch avoid track occur when high temperature, can extend the service life on road surface, obtain shearing pitch；
(4) water, fatty alcohol polyoxyethylene ether ammonium sulfate and asphalt stabilizer are mixed, is stirred evenly, in 80 DEG C of heat preservation 30min,
It is green and healthy, later period volatilization toxic component is avoided, guarantees the construction environment of health, adds in shearing pitch, is uniformly mixed, turn
Enter to develop tank, in 190 DEG C of development 20min, the revolving speed of blender is 17r/min, improves the viscosity of pitch, reduces needle penetration, increases
The high temperature and low temperature tolerant performance of strong pitch, improve the bearing capacity on road surface, obtain weather-proof modified pitch.
Comparative example 1
It goes to remove water, remaining preparation method, with embodiment 1.
Comparative example 2
Remove nano-titanium dioxide, remaining preparation method, with embodiment 1.
Comparative example 3
Remove graphene, remaining preparation method, with embodiment 1.
Comparative example 4
Remove the zinc acetate in asphalt stabilizer, remaining preparation method, with embodiment 1.
Comparative example 5
Remove the methyl cyclopentadiene in asphalt stabilizer, remaining preparation method, with embodiment 1.
Comparative example 6
It removes step (3) and (4), raw material is added in step (2), remaining preparation method, with embodiment 1.
Comparative example 7
The revolving speed of colloid mill is 12000r/min, remaining preparation method, with embodiment 1 in step (3).
Comparative example 8
Remove the heat preservation in step (4), remaining preparation method, with embodiment 1.
Comparative example 9
Existing 108530917 A of patent document CN provides a kind of modified pitch.
The performance of embodiment and comparative example modified pitch:
Example and the modified pitch of comparative example are appropriate respectively, and according to JTG E20-2011, " highway engineering pitch and pitch are mixed
Close material testing regulations " regulation, detects the needle penetration and softening point of each group modified pitch, each test is repeated 3 times, as a result takes respectively
The performance of average value, embodiment and comparative example modified pitch is shown in Table 1；
Table 1: the performance of embodiment and comparative example modified pitch
From table 1 the result shows that, the weather-proof modified pitch of embodiment, 25 DEG C and 50 DEG C of needle penetration is significantly less than comparative example,
Softening point is apparently higher than comparative example, illustrates that weather-proof modified pitch provided by the invention has stronger weatherability.
Claims (4)
1. a kind of weather-proof modified pitch, which is characterized in that be made of raw material from the following weight: matrix pitch 95 ~ 100, water 2.2
~ 2.4, nano-titanium dioxide 2.1 ~ 2.3, SBS asphalt modifier 1.7 ~ 1.9, fatty alcohol polyoxyethylene ether ammonium sulfate 1.1 ~ 1.3,
Asphalt stabilizer 0.3 ~ 0.5, graphene 0.5 ~ 0.7.
2. weather-proof modified pitch according to claim 1, which is characterized in that the asphalt stabilizer, by following parts by weight
Raw material be made: zinc acetate 4.1 ~ 4.3, methyl cyclopentadiene 2.4 ~ 2.6, ethyl alcohol 7 ~ 8.
3. the preparation method of weather-proof modified pitch described in a kind of claim 1, which comprises the following steps:
(1) matrix pitch is heated to 180 ~ 190 DEG C, is transferred in production tank, keeps the temperature 10 ~ 15min, obtain heated asphalt；
(2) nano-titanium dioxide and SBS asphalt modifier are added in heated asphalt, are stirred evenly, heat preservation 20 ~ 30min of swelling,
Pitch must be swollen；
(3) graphene is added in swelling pitch, is stirred evenly, sheared 4 ~ 5 times, obtained in 8000 ~ 9000r/min using colloid mill
Shear pitch；
(4) by water, fatty alcohol polyoxyethylene ether ammonium sulfate and asphalt stabilizer mix, stir evenly, in 70 ~ 80 DEG C keep the temperature 20 ~
30min is added in shearing pitch, is uniformly mixed, is transferred to development tank, in 180 ~ 190 DEG C of 10 ~ 20min of development, obtains weather-proof modification
Pitch.
4. the preparation method of weather-proof modified pitch according to claim 3, which is characterized in that the development of the step (4) is stirred
The revolving speed for mixing device is 15 ~ 17r/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811388066.7A CN109504108A (en) | 2018-11-21 | 2018-11-21 | A kind of weather-proof modified pitch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811388066.7A CN109504108A (en) | 2018-11-21 | 2018-11-21 | A kind of weather-proof modified pitch |
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| Publication Number | Publication Date |
|---|---|
| CN109504108A true CN109504108A (en) | 2019-03-22 |
Family
ID=65749247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811388066.7A Pending CN109504108A (en) | 2018-11-21 | 2018-11-21 | A kind of weather-proof modified pitch |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110499036A (en) * | 2019-09-29 | 2019-11-26 | 河北省交通规划设计院 | A kind of nano modified alphalt and preparation method thereof |
| CN110791110A (en) * | 2019-11-07 | 2020-02-14 | 江苏路耐德公路养护技术有限公司 | Asphalt adhesion promoter and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110499036A (en) * | 2019-09-29 | 2019-11-26 | 河北省交通规划设计院 | A kind of nano modified alphalt and preparation method thereof |
| CN110499036B (en) * | 2019-09-29 | 2022-02-01 | 河北省交通规划设计研究院有限公司 | Nano modified asphalt and preparation method thereof |
| CN110791110A (en) * | 2019-11-07 | 2020-02-14 | 江苏路耐德公路养护技术有限公司 | Asphalt adhesion promoter and preparation method thereof |
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