CN107474567A - A kind of high adhered modification pitch and preparation method thereof - Google Patents
A kind of high adhered modification pitch and preparation method thereof Download PDFInfo
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- CN107474567A CN107474567A CN201710903257.1A CN201710903257A CN107474567A CN 107474567 A CN107474567 A CN 107474567A CN 201710903257 A CN201710903257 A CN 201710903257A CN 107474567 A CN107474567 A CN 107474567A
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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
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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
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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Abstract
The invention discloses a kind of high adhered modification pitch, include the component of following parts by weight：0.5 1 parts of 2 parts of 24 parts of 12 parts of 100 parts of 20 parts of SAM12, matrix pitch, regnerated rubber powder, butadiene-styrene rubber, furfural extract oil, the stabilizer of swelling, wherein, the SAM of swelling includes SAM and sweller, and the mass ratio of the SAM and the sweller is 1：1.Using SAM as modifying agent, because it has particular polymer structure, compared with SBS classes, gel formation time is extended, makes its modified pitch that there is more preferable high-temperature storage stability；Change in addition, reducing the melt viscosity caused by SBS classes are elastomer crosslinked with the fracture of block copolymer chain, so as to obtain more preferable cryogenic property.
Description
Technical field
The invention belongs to road asphalt field of material technology, and in particular to a kind of high adhered modification pitch and preparation method thereof.
Background technology
Drainage asphalt pavement, also known as penetrated asphalt pavement or porous asphalt pavement, voidage 15 after finger pressure reality~
25% or so, the asphalt concrete pavement of drainage channel can be formed in compound, it has good draining, noise reduction, resisted
Pavement performance and the environmental protection concept such as sliding, multiple provinces and cities' high-grade highways and city expressway in China Beijing, Shanghai, Guangdong etc.
On be able to extensive use.
It is relatively low viscosity to be present in the bituminous cements used in early stage drainage pavement, and attached thickness deficiency is wrapped up in, in weight to gathering materials
Carry or the big road of the volume of traffic on using disease is easily produced the problems such as.Therefore, high adhered modification pitch is following laying drainage
The most critical material of bituminous paving.Japan conducts in-depth research in this respect, TPS type high adhered modification agent is prepared for, in base
12%-16% TPS can be with 60 DEG C of viscosity of modified pitch, high-temperature behavior, Water Damages energy, fatigue behaviour in matter pitch.But
TPS expensive (market price reaches 50,000/t), it is difficult to large-scale promotion application at home.
In order to improve the viscosity of pitch, the cost of high adhered modification pitch is reduced, domestic scholars have also carried out substantial amounts of research.
Such as authorize Publication No. CN1089349C Chinese patent to report use first modifying agent and pitch and other compounding ingredients are blended,
The masterbatch disperseed easily in pitch is prepared into, then this masterbatch is dispersed in pitch, prepares modified pitch.Such as Chinese patent
CN201610353889.0 uses thermoplastic styrene butadiene rubber, modified styrene butadiene rubber, regeneration PE, regeneration EVA, crosslinking agent, stabilizer,
Using melting extrusion, high adhered modification agent is prepared for, and is prepared for high adhered modification pitch, but type of polymer used is various,
The problem of slow, scattered required time is long is dissolved in pitch.Chinese patent CN101538408A discloses a kind of asphaltum with high viscosity
And preparation method thereof, wherein high-viscosity modified asphalt is by 100 parts of No. 70 pitches, 4~12 parts of thermoplastic elastomers, 2~8 parts of thermoplasticity
Resin, 1~10 part of compatilizer, 8~40 parts of adjusting adhesives and 0.5~4 part of comprehensive age resistor composition, the patent is by adding high fragrance
The compatilizer of point content improves the compatilizer between pitch and polymer, and pitch is improved by adding adjusting adhesive Petropols
Viscosity and reduce polymer dosage.
Although above-mentioned technology solves the problems, such as high-viscosity asphalt viscosity to a certain extent, these asphalt modifiers or drip
Blue or green method of modifying is also low in the presence of solution modifying agent indissoluble solution, high-temperature storage stability difference and modified pitch in pitch is failed
The problem of warm poor performance.
The defects of existing in view of above-mentioned existing high adhered modification pitch, the present inventor are based on being engaged in such product design system
Abundant for many years practical experience and professional knowledge are made, and coordinates the utilization of scientific principle, is actively subject to research and innovation, to found one kind
High adhered modification pitch and preparation method thereof, it is set to have more practicality.By constantly research, design, and through studying sample repeatedly
After product and improvement, the present invention having practical value is created finally.
The content of the invention
It is a primary object of the present invention to overcome modifying agent indissoluble in pitch existing for existing high adhered modification pitch
The problem of solution, high-temperature storage stability difference and modified pitch poor performance at low temperatures, and a kind of high adhered modification pitch and its system are provided
Preparation Method, its solubility property and cryogenic property are added, thus more suitable for practicality, and with the value in industry.
The object of the invention to solve the technical problems is realized using following technical scheme.
A kind of high adhered modification pitch, include the component of following parts by weight：
Wherein, the SAM of swelling includes SAM and sweller, and the mass ratio of the SAM and the sweller is 1：1, wherein
SAM is styrene-butadiene-isoprene styrene.
Further, the SAM is the combination of one or both of line style, hub-and-spoke configuration.
Further, styrene/(butadiene+isoprene)=3/7 in the SAM, and the molecular weight of the SAM is 8-
200000.
Further, any one in the sweller fragrance base oil, naphthene base crude oil, paraffin oil.
Further, the regnerated rubber powder is that main component is styrene-butadiene (SBR) or natural rubber (NR)
Retread powder, and the mesh number of the regnerated rubber powder is 20-200.
Further, the butadiene-styrene rubber is powdered.
Further, the stabilizer is sulphur.
Further, the matrix pitch is No. 70 pitches or No. 90 pitches.
The preparation method of high adhered modification pitch, comprises the following steps：
S1, by the parts by weight weigh each component；
S2, the SAM for preparing the swelling：The sweller and SAM are added in mixer, swelling is stirred, obtains
The SAM of swelling；
The regnerated rubber powder, butadiene-styrene rubber, the SAM of swelling, furfural are added after S3, the heating matrix pitch to extract out
Oil, sheared after stirring；
S4, the stabilizer is added, continue to shear；
S5, after completing shearing, obtained material is developed, obtains high adhered modification pitch.
Further, the time being swelled in the S2 is 6-12h, and the temperature of swelling is 40-50 DEG C.
Further, the temperature developed described in the S5 is 175-180 DEG C, the time of the development is 2-4h.
Using above-mentioned technical proposal, following technique effect can be realized：
(1) it is in strand to introduce isoprene molecular structure, shape compared with SBS using SAM as modifying agent more
Into cross-linked structure, gel formation time is extended, makes its modified pitch that there is more preferable high-temperature storage stability；In addition, reduce
Melt viscosity changes caused by SBS classes are elastomer crosslinked with the fracture of block copolymer chain, so as to obtain preferably
Cryogenic property；
(2) SAM is added the distance of SAM molecule interchains, adds the intramolecular skies of SAM first with swelling solvent swell
Between, therefore after adding heated bitumen, asphaltene molecule can be rapidly entered in the SAM molecules being swelled, and reduce SAM dissolving
Time, it is possible to increase the production efficiency of modified pitch；
(3) preparation technology of the invention is simple, and cost is low, is easy to industrialize, and has very strong practicality.
Embodiment
Further to illustrate the present invention to reach the technological means and effect that predetermined goal of the invention is taken, to according to this
The high adhered modification pitch proposed and preparation method thereof its embodiment, feature and its effect are invented, is described in detail as after.
A kind of high adhered modification pitch, include the component of following parts by weight：
Wherein, the SAM of swelling includes SAM and sweller, and the mass ratio of SAM and sweller is 1：1, wherein SAM are benzene
Ethylene-butylene-isoprene styrene.
Further, SAM is the combination of one or both of line style, hub-and-spoke configuration.
Further, styrene/(butadiene+isoprene)=3/7 in SAM, and SAM molecular weight is 8-20 ten thousand.
Further, any one in sweller fragrance base oil, naphthene base crude oil, paraffin oil.
Further, regnerated rubber powder is the regeneration that main component is styrene-butadiene (SBR) or natural rubber (NR)
Tyre talc, and the mesh number of regnerated rubber powder is 20-200.
Further, butadiene-styrene rubber is powdered.
Further, stabilizer is sulphur.
Further, matrix pitch is No. 70 pitches or No. 90 pitches.
The preparation method of high adhered modification pitch, comprises the following steps：
S1, each component is weighed by weight；
S2, the SAM for preparing swelling：Sweller and SAM are added in mixer, swelling is stirred, is swelled
SAM；
Regnerated rubber powder, butadiene-styrene rubber, the SAM of swelling, furfural extract oil are added after S3, heated substrate pitch, stirring is equal
Sheared after even；
S4, stabilizer is added, continue to shear；
S5, after completing shearing, obtained material is developed, obtains high adhered modification pitch.
Further, the time being swelled in S1 is 6-12h, and the temperature of swelling is 40-50 DEG C.
Further, the temperature developed in S5 is 175-180 DEG C, the time of development is 2-4h.
In order to further illustrate the present invention, with reference to specific embodiment to high adhered modification pitch provided by the invention and its
Preparation method is described in detail, but should not be construed as limiting the scope of the present invention.
Embodiment 1
S1, weigh fragrant base oil 60g, molecular weight be 80,000 line style SAM60g, 70# matrix pitch 1000g, 200 purposes again
Raw rubber powder 10g, SBR1502 rubber 40g, furfural extract oil 20g, sulphur stabilizer 5g；
S2, the SAM for preparing swelling：After mixer is warming up into 45 DEG C, the fragrant base oil weighed is added in mixer
And SAM, it is stirred swelling 6h, the SAM being swelled；
After S3, heating 70# matrix pitches to addition regnerated rubber powder, SBR1502 rubber after 175 DEG C after stirring 10min again
SAM, the furfural extract oil of the swelling prepared are added, 10min is sheared after stirring；
S4, sulphur stabilizer is added, continue to shear 10min；
S5, after completing shearing, obtained material is incubated to development 4h at 175 DEG C, obtains high adhered modification pitch 1.
Embodiment 2
S1, weigh naphthenic oil 120g, molecular weight be 80,000 line style SAM120g, 70# matrix pitch 1000g, 100 purposes again
Raw rubber powder 20g, SBR1502 rubber 30g, furfural extract oil 20g, sulphur stabilizer 10g；
S2, the SAM for preparing swelling：After mixer is warming up into 45 DEG C, the fragrant base oil weighed is added in mixer
And SAM, it is stirred swelling 12h, the SAM being swelled；
After S3, heating 70# matrix pitches to addition regnerated rubber powder, SBR1502 rubber after 175 DEG C after stirring 10min again
SAM, the furfural extract oil of the swelling prepared are added, 10min is sheared after stirring；
S4, sulphur stabilizer is added, continue to shear 10min；
S5, after completing shearing, obtained material is incubated to development 2h at 180 DEG C, obtains high adhered modification pitch 2.
Embodiment 3
S1, weigh naphthenic oil 100g, molecular weight be 200,000 star-like SAM100g, 70# matrix pitch 1000g, 20 purposes again
Raw rubber powder 20g, SBR1502 rubber 20g, furfural extract oil 20g, sulphur stabilizer 8g；
S2, the SAM for preparing swelling：After mixer is warming up into 45 DEG C, the fragrant base oil weighed is added in mixer
And SAM, it is stirred swelling 8h, the SAM being swelled；
After S3, heating 70# matrix pitches to addition regnerated rubber powder, SBR1502 rubber after 175 DEG C after stirring 10min again
SAM, the furfural extract oil of the swelling prepared are added, 10min is sheared after stirring；
S4, sulphur stabilizer is added, continue to shear 10min；
S5, after completing shearing, obtained material is incubated to development 3h at 180 DEG C, obtains high adhered modification pitch 3.
Embodiment 4
S1, weigh paraffin oil 100g, molecular weight be 200,000 star-like SAM100g, 90# matrix pitch 1000g, 20 purposes again
Raw rubber powder 20g, SBR1502 rubber 20g, furfural extract oil 20g, sulphur stabilizer 10g；
S2, the SAM for preparing swelling：After mixer is warming up into 45 DEG C, the fragrant base oil weighed is added in mixer
And SAM, it is stirred swelling 10h, the SAM being swelled；
After S3, heating 70# matrix pitches to addition regnerated rubber powder, SBR1502 rubber after 175 DEG C after stirring 10min again
SAM, the furfural extract oil of the swelling prepared are added, 10min is sheared after stirring；
S4, sulphur stabilizer is added, continue to shear 10min；
S5, after completing shearing, obtained material is incubated to development 2h at 180 DEG C, obtains high adhered modification pitch 4.
Embodiment 5
S1, weigh aromatic oil 100g, molecular weight be 80,000 line style SAM100g, 90# matrix pitch 1000g, 20 purposes again
Raw rubber powder 20g, SBR1502 rubber 30g, furfural extract oil 20g, sulphur stabilizer 10g；
S2, the SAM for preparing swelling：After mixer is warming up into 45 DEG C, the fragrant base oil weighed is added in mixer
And SAM, it is stirred swelling 8h, the SAM being swelled；
After S3, heating 70# matrix pitches to addition regnerated rubber powder, SBR1502 rubber after 175 DEG C after stirring 10min again
SAM, the furfural extract oil of the swelling prepared are added, 10min is sheared after stirring；
S4, sulphur stabilizer is added, continue to shear 10min；
S5, after completing shearing, obtained material is incubated to development 3h at 175 DEG C, obtains high adhered modification pitch 5.
Embodiment 6
S1, weigh paraffin oil 100g, the star-like SAM50g that the line style SAM50g that molecular weight is 80,000, molecular weight are 200,000,
70# matrix pitches 1000g, 80 mesh regnerated rubber powder 30g, SBR1502 rubber 30g, furfural extract oil 20g, sulphur stabilizer
10g；
S2, the SAM for preparing swelling：After mixer is warming up into 45 DEG C, the fragrant base oil weighed is added in mixer
And SAM, it is stirred swelling 12h, the SAM being swelled；
After S3, heating 70# matrix pitches to addition regnerated rubber powder, SBR1502 rubber after 175 DEG C after stirring 10min again
SAM, the furfural extract oil of the swelling prepared are added, 10min is sheared after stirring；
S4, sulphur stabilizer is added, continue to shear 10min；
S5, after completing shearing, obtained material is incubated to development 2h at 180 DEG C, obtains high adhered modification pitch 6.
Table 1 is the technical requirement of modified asphalt and high adhered modification pitch, and table 2 is above-described embodiment 1 to implementation
The experimental data for the high adhered modification pitch that example 6 obtains.
The technical indicator of the different modified asphalt of table 1
| High adhered modification pitch codes and standards | Modified asphalt codes and standards | |
| 25 DEG C of needle penetrations (0.1mm) | ≥40 | 60~80 |
| Softening point (DEG C) | ≥80 | 60 |
| 15 DEG C of ductilities (cm) | ≥50 | / |
| 5 DEG C of ductilities (cm) | ≥20 | 30 |
| 25 DEG C of elasticity recover (%) | / | 75 |
| Glutinous toughness (Nm) | ≥20 | / |
| 60 DEG C of dynamic viscosities (Pas) | ≥20000 | / |
| Flash-point (DEG C) | ≥260 | ≥230 |
The example 1 of table 2 to the high adhered modification pitch of embodiment 6 experimental data
Experimental result can be seen that from upper table 1 and 2：Changed using high glue made from the component proportion and preparation method of the present invention
Property the needle penetration of pitch, softening point, ductility, dynamic viscosity, glutinous toughness, the index such as 60 DEG C of dynamic viscosities, flash-points is more than JTG
The modified asphalt requirement required in F40-2004 and the technical requirements of current high adhered modification pitch, particularly its 60 DEG C are dynamic
Power viscosity, in addition to embodiment 1, the related request considerably beyond technical indicator, and dynamic viscosity is reflection pitch season in full summer
The optimal index of heat resistance is saved, illustrates that its high-temperature stability is preferable.15 DEG C of ductilities and 5 DEG C of ductilities are above technical indicator
Related request, and ductility is bigger, shows that the plasticity of pitch is better.Its flash-point is above 260 DEG C of index request, and pitch flash points
Refer to temperature when pitch occurs Mars with temperature rise, illustrate that its is safe, suitable for commercial scale popularization and application.
The above described is only a preferred embodiment of the present invention, any formal limitation not is made to the present invention, though
So the present invention is disclosed above with preferred embodiment, but is not limited to the present invention, any to be familiar with this professional technology people
Member, without departing from the scope of the present invention, when the technology contents using the disclosure above make a little change or modification
For the equivalent embodiment of equivalent variations, as long as being the content without departing from technical solution of the present invention, the technical spirit according to the present invention
Any simple modification, equivalent change and modification made to above example, in the range of still falling within technical solution of the present invention.
Claims (10)
1. a kind of high adhered modification pitch, it is characterised in that include the component of following parts by weight：
SAM 12-24 parts of swelling
100 parts of matrix pitch
Regnerated rubber powder 1-3 parts
Butadiene-styrene rubber 2-4 parts
2 parts of furfural extract oil
Stabilizer 0.5-1 parts
Wherein, the SAM of swelling includes SAM and sweller, and the mass ratio of the SAM and the sweller is 1：1.
2. high adhered modification pitch according to claim 1, it is characterised in that the SAM is in linear structure, hub-and-spoke configuration
One or two kinds of combinations.
3. high adhered modification pitch according to claim 1 or 2, it is characterised in that styrene in the SAM/（Butadiene+
Isoprene）=3/7, and the molecular weight of the SAM is 8-20 ten thousand.
4. high adhered modification pitch according to claim 1, it is characterised in that the sweller fragrance base oil, naphthene base crude oil,
Any one in paraffin oil.
5. high adhered modification pitch according to claim 1, it is characterised in that the regnerated rubber powder is that main component is benzene
The retread powder of ethylene-butylene or natural rubber, and the mesh number of the regnerated rubber powder is 20-200.
6. high adhered modification pitch according to claim 1, it is characterised in that the butadiene-styrene rubber is powdered.
7. high adhered modification pitch according to claim 1, it is characterised in that the stabilizer is sulphur.
8. the preparation method of high adhered modification pitch according to claim 1, it is characterised in that comprise the following steps：
S1, by the parts by weight weigh each component；
S2, the SAM for preparing the swelling：The sweller and the SAM are added in mixer, swelling is stirred, obtains
The SAM of swelling；
The regnerated rubber powder, the butadiene-styrene rubber, the SAM of the swelling, the chaff are added after S3, the heating matrix pitch
Aldehyde tapped oil, sheared after stirring；
S4, the stabilizer is added, continue to shear；
S5, after completing shearing, obtained material is developed, obtains high adhered modification pitch.
9. the preparation method of high adhered modification pitch according to claim 8, it is characterised in that the time being swelled in the S2
For 6-12h, the temperature of swelling is 40-50 DEG C.
10. the preparation method of high adhered modification pitch according to claim 8, it is characterised in that developed described in the S5
Temperature be 175-180 DEG C, the time of the development be 2-4h.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111117267A (en) * | 2019-12-23 | 2020-05-08 | 上海浦东路桥沥青材料有限公司 | Compound modified asphalt, preparation method and application |
| CN111349345A (en) * | 2020-04-03 | 2020-06-30 | 大连理工大学 | Vulcanized natural rubber modified asphalt and preparation method thereof |
| CN111944321A (en) * | 2020-08-26 | 2020-11-17 | 山东交通学院 | High-toughness semi-fusion functional composite environment-friendly asphalt interface regenerant and preparation method thereof |
| CN111961344A (en) * | 2020-08-13 | 2020-11-20 | 长安大学 | High-viscosity asphalt modifier, high-viscosity modified asphalt and preparation method |
| CN113943491A (en) * | 2021-11-17 | 2022-01-18 | 东莞泰和沥青产品有限公司 | Low-temperature high-viscosity modified asphalt and processing technology thereof |
| CN115122719A (en) * | 2022-07-04 | 2022-09-30 | 永康市海峰防水建材有限公司 | Preparation process of high-heat-resistance stretch-resistant modified asphalt waterproof coiled material |
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| WO2016183144A1 (en) * | 2015-05-12 | 2016-11-17 | Wacker Chemical Corporation | Asphalt comprising a dispersion powder based upon ethylene-vinyl acetate copolymer having a| vinyl acetate content more than 50 wt-% |
| CN106243746A (en) * | 2016-07-29 | 2016-12-21 | 中海沥青（泰州）有限责任公司 | A kind of ultra-thin wearing layer modified pitch and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111117267A (en) * | 2019-12-23 | 2020-05-08 | 上海浦东路桥沥青材料有限公司 | Compound modified asphalt, preparation method and application |
| CN111349345A (en) * | 2020-04-03 | 2020-06-30 | 大连理工大学 | Vulcanized natural rubber modified asphalt and preparation method thereof |
| CN111961344A (en) * | 2020-08-13 | 2020-11-20 | 长安大学 | High-viscosity asphalt modifier, high-viscosity modified asphalt and preparation method |
| CN111944321A (en) * | 2020-08-26 | 2020-11-17 | 山东交通学院 | High-toughness semi-fusion functional composite environment-friendly asphalt interface regenerant and preparation method thereof |
| CN113943491A (en) * | 2021-11-17 | 2022-01-18 | 东莞泰和沥青产品有限公司 | Low-temperature high-viscosity modified asphalt and processing technology thereof |
| CN115122719A (en) * | 2022-07-04 | 2022-09-30 | 永康市海峰防水建材有限公司 | Preparation process of high-heat-resistance stretch-resistant modified asphalt waterproof coiled material |
| CN115122719B (en) * | 2022-07-04 | 2024-03-08 | 永康市海峰防水建材有限公司 | Preparation process of high-heat-resistance stretch-resistant modified asphalt waterproof coiled material |
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Application publication date: 20171215 |