CN111073316B - Polymer alloy for paving steel bridge deck and preparation method thereof - Google Patents
Polymer alloy for paving steel bridge deck and preparation method thereof Download PDFInfo
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L95/00—Compositions of bituminous materials, e.g. asphalt, tar, pitch
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- C08L53/00—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
- C08L53/02—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers of vinyl-aromatic monomers and conjugated dienes
- C08L53/025—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers of vinyl-aromatic monomers and conjugated dienes modified
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Abstract
The invention belongs to the technical field of asphalt material compositions, and particularly relates to a polymer alloy for paving a steel bridge deck. The polymer alloy comprises the following components: polyarylene sulfide, acrylonitrile-butadiene-styrene copolymer, grafting initiator and asphalt. The polymer alloy has excellent high-temperature anti-rutting performance, excellent low-temperature anti-cracking performance, excellent tensile property and high bonding strength with a steel plate.
Description
Technical Field
The invention belongs to the technical field of asphalt material compositions, and particularly relates to a polymer alloy for paving a steel bridge deck and a preparation method thereof.
Background
With the rapid increase of the investment of the infrastructure in China, bridge construction has entered a new era, more and more, larger and longer bridges are built, and a wide space is provided for the steel structure bridge (the application and prospect of the steel structure bridge in China, Zhang Ying, theoretical research of urban construction, 35 th in 2013, page 35, 2014, 01, 16 th). Compared with the common reinforced concrete structure, the steel structure has the advantages of uniformity, high strength, high construction speed, good anti-seismic performance, higher recovery rate and the like, has stronger strength and super-good elasticity compared with the common stone bricks, is considered by combining the factors, and has lighter weight and more convenient and labor-saving transportation under the condition of the same load. In addition, before the bridge constructed by the steel structure is dangerous, the steel structure can firstly generate certain deformation to better draw the attention of bridge supervisors, so that accident disasters are well avoided, and the personal safety and property safety of people are well guaranteed to a certain extent (application of the steel structure in the highway bridge and construction first visit thereof, Queen, Chinese building metal structure, 6X of 2013, 75 th page, 12 and 31 of 2013). The steel structure bridge is widely applied to railway, highway and highway dual-purpose and pedestrian overpasses. The iron road bridge comprises a Jinan iron road bridge, a Zhengzhou iron road bridge, a Lanzhou yellow river bridge and the like, the public road bridge comprises a Guangzhou girald bridge, a Shanghai south Pu bridge and a Guangdong Timen bridge, the public-iron dual-purpose bridge comprises a Wuhan Changjiang river bridge, a hong Kong Qingma bridge and the like, and the pedestrian overpass comprises a New sea man-shaped steel mesh overpass and a Guiyang cross street crossing pedestrian annular steel overpass (application and prospect of the steel structure bridge in China, Zhang Yi, theoretical research of urban construction, 35 th year in 2013, 35 th page, and 16 th month in published 2014).
Chongqing as mountain cities and bridges has been built and built above 6000 seats of bridge, the total length is nearly 30 ten thousand kilometers ("Chongqing bridge construction level and bridge characteristic research", Zhongfu, Chongqing building, No. 4 of 2007, pages 8-11, published 2007, 08-27 days), and the number of highway bridges on two rivers reaches more than 30 seats. In addition, on a plurality of high-grade roads, the proportion of bridges and tunnels is more than 70%, and bridges occupy the dominant position in a road network. At present, there are 10 or more large-span orthotropic steel box girder bridges (the study on the properties of epoxy asphalt materials and mixtures, liu lang, university of long sand science and technology, university of university, 2012, pages 1-142) which are being built or already put into use in China. In coastal areas, cross-sea passages such as a cross-sea bridge in Baeckea and Marseudo, a sea channel in Bohai sea strait and the like are being fastened and constructed or planned; in inland, river-crossing and river-crossing bridges are also under large-area construction, for bridges on the Yangtze river, from 10 months in 1957, the first Yangtze river bridge-Wuhan Yangtze river bridge is built into a traffic vehicle, and in 2012, hundreds of bridges are broken, and it is expected that 124 grand bridges will exist on the Yangtze river in 2020, and at that time, 1 grand bridge exists when the average distance between ten thousand Yangtze rivers and less than 30 kilometers.
At present, the span of bridges in China is continuously increased, and from the construction of highway bridges in the world at present, the maximum span of steel beams and steel arches exceeds 500 meters, and the maximum span of steel cable-stayed bridges is 890 meters, wherein a steel suspension bridge reaches 1990 meters, and the steel cable-stayed bridge is 1000 meters higher along with the actual requirements of crossing the river and the sea, the maximum span of the steel suspension bridge exceeds 3000 meters, while the maximum span of a concrete bridge is 300 meters, an arch bridge reaches 420 meters, and a cable-stayed bridge reaches 530 meters (the future development trend of roads in China, octopus swallow and the like, China periodical network, http:// www.chinaqking.com/yc/2018/1400234.html, and 10, 17, 10 and 2018 are published). Higher requirements are put on the paving materials and structures of steel bridge decks ("summary of status quo of construction and development of large-span bridges", chenshundong, sichuan construction, 2008, volume 28, phase 2, page 120-. This causes the appearance of the typical characteristics of the heavy traffic used for paving steel bridge decks in China, the paving stress of the steel bridge decks is more unfavorable under the condition of the heavy traffic, and higher requirements are put forward on paving materials and paving structure performance ("novel structure and material for paving steel bridge decks in heavy traffic", Yan Dongfeng, urban road bridges and flood control No. 5 national (international) technical peak forum, pages 72-75, published 2011, and No. 07/18).
At present, cast asphalt concrete, SMA and double-layer epoxy asphalt concrete are used as main paving modes for paving a bridge deck, and a cast asphalt concrete and SMA paving system has excellent low-temperature and fatigue performance but unsatisfactory high-temperature anti-rutting performance; epoxy asphalt concrete has excellent high-temperature performance but poor low-temperature cracking resistance.
Disclosure of Invention
In view of the above, the present invention aims to provide a polymer alloy for steel deck pavement.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a polymer alloy comprising the following components: polyarylene sulfide, acrylonitrile-butadiene-styrene copolymer, grafting initiator and asphalt.
Further, the polyarylene sulfide is polyphenylene sulfide or polyarylene sulfide sulfone.
Further, the grafting initiator is maleic anhydride.
Further, the asphalt is lake asphalt.
Further, the polymer alloy comprises the following components in parts by mass: 10-100 parts of polyarylene sulfide, 20-50 parts of acrylonitrile-butadiene-styrene copolymer, 1-3 parts of grafting initiator and 20-100 parts of asphalt.
Further, the polymer alloy further comprises the following components: impact polystyrene and/or hydrogenated styrene-butadiene block copolymers containing extender oils and/or sarin resins and/or silica and/or bitumen.
Further, the extender oil is naphthenic oil, furfural oil, white mineral oil or phthalic diester.
Further, the extender oil is used in an amount of 5 to 20% by mass of the hydrogenated styrene-butadiene block copolymer.
Further, the polymer alloy comprises the following components in parts by mass: 10-100 parts of polyarylene sulfide, 20-50 parts of acrylonitrile-butadiene-styrene copolymer, 1-3 parts of grafting initiator, 20-100 parts of asphalt, 10-30 parts of impact-resistant polystyrene and/or 50-100 parts of hydrogenated styrene-butadiene block copolymer containing filling oil and/or 1-20 parts of sarin resin and/or 1-10 parts of silicon dioxide.
Further, the polymer alloy comprises the following components in parts by mass: 10-100 parts of polyarylene sulfide, 20-50 parts of acrylonitrile-butadiene-styrene copolymer, 1-3 parts of grafting initiator, 20-100 parts of asphalt, 10-30 parts of impact-resistant polystyrene and/or 50-100 parts of hydrogenated styrene-butadiene block copolymer containing filling oil and/or 1-20 parts of sarin resin and/or 1-10 parts of silicon dioxide; the polyarylene sulfide is polyphenylene sulfide or polyarylene sulfide sulfone, the grafting initiator is maleic anhydride, the filling oil is naphthenic oil, furfural oil, white mineral oil or phthalic diester, the using amount of the filling oil is 5-20% of the mass of the hydrogenated styrene-butadiene block copolymer, and the asphalt is lake asphalt.
Another object of the present invention is to provide a method for producing the polymer alloy, comprising the steps of:
(1) pulverizing lake asphalt at below 10 deg.C; crushing the hydrogenated styrene-butadiene block copolymer and then filling oil;
(2) uniformly mixing polyarylene sulfide, acrylonitrile-butadiene-styrene copolymer, asphalt, impact-resistant polystyrene and/or hydrogenated styrene-butadiene block copolymer containing filling oil and/or sarin resin and/or silicon dioxide, adding a grafting initiator, and continuously mixing until the mixture is uniform; then extruding, cooling and granulating to obtain the product.
The invention also aims to protect the application of said polymer alloy in bridge deck paving.
The invention has the beneficial effects that:
the polymer alloy has excellent high-temperature anti-rutting performance, and the dynamic stability at 60 ℃ is 27000 and 350000 times/mm.
The polymer alloy of the invention has excellent low-temperature cracking resistance, and the bending strain at-10 ℃ is 4121-4611 mu epsilon.
The polymer alloy has excellent tensile property and high bonding strength with a steel plate, wherein the tensile strength (23 ℃) is 34.2-40.2MPa, the elongation at break (23 ℃) is 39.3-60.3%, the bonding and drawing strength (25 ℃) with the steel plate is 10.4-11.5MPa, and the bonding and shearing strength (25 ℃) with the steel plate is 8.7-9.3 MPa.
Detailed Description
The examples are provided for better illustration of the present invention, but the present invention is not limited to the examples. Therefore, those skilled in the art should make insubstantial modifications and adaptations to the embodiments of the present invention in light of the above teachings and remain within the scope of the invention.
Example 1
The polymer alloy comprises the following components in parts by mass: 12 parts of polyarylene sulfide, 28 parts of acrylonitrile-butadiene-styrene copolymer, 1.8 parts of grafting initiator, 25 parts of impact-resistant polystyrene, 96 parts of hydrogenated styrene-butadiene block copolymer containing filling oil, 2 parts of sarin resin, 9 parts of silicon dioxide and 84 parts of asphalt; the polyarylene sulfide is polyphenylene sulfide, the grafting initiator is maleic anhydride, the filling oil is phthalic diester, the amount of the filling oil is 6% of the mass of the hydrogenated styrene-butadiene block copolymer, and the asphalt is lake asphalt.
The preparation method of the polymer alloy comprises the following specific steps:
(1) pulverizing lake asphalt at below 10 deg.C; crushing the hydrogenated styrene-butadiene block copolymer and then filling oil;
(2) uniformly mixing polyarylene sulfide, acrylonitrile-butadiene-styrene copolymer, asphalt, impact-resistant polystyrene, hydrogenated styrene-butadiene block copolymer containing filling oil, surlyn resin and silicon dioxide, adding a grafting initiator, and continuously mixing until uniform; then extruding, cooling and granulating to obtain the product.
Example 2
The polymer alloy comprises the following components in parts by mass: 64 parts of polyarylene sulfide, 45 parts of acrylonitrile-butadiene-styrene copolymer, 2.7 parts of grafting initiator, 13 parts of impact-resistant polystyrene, 55 parts of hydrogenated styrene-butadiene block copolymer containing filling oil, 16 parts of sarin resin, 1 part of silicon dioxide and 24 parts of asphalt; the polyarylene sulfide is polyarylene sulfide sulfone, the grafting initiator is maleic anhydride, the filling oil is furfural oil, the using amount of the filling oil is 18% of the mass of the hydrogenated styrene-butadiene block copolymer, and the asphalt is lake asphalt.
The preparation method of the polymer alloy comprises the following specific steps:
(1) pulverizing lake asphalt at below 10 deg.C; crushing the hydrogenated styrene-butadiene block copolymer and then filling oil;
(2) uniformly mixing polyarylene sulfide, acrylonitrile-butadiene-styrene copolymer, asphalt, impact-resistant polystyrene, hydrogenated styrene-butadiene block copolymer containing filling oil, surlyn resin and silicon dioxide, adding a grafting initiator, and continuously mixing until uniform; then extruding, cooling and granulating to obtain the product.
Example 3
The polymer alloy comprises the following components in parts by mass: 98 parts of polyarylene sulfide, 36 parts of acrylonitrile-butadiene-styrene copolymer, 2 parts of grafting initiator, 21 parts of impact-resistant polystyrene, 72 parts of hydrogenated styrene-butadiene block copolymer containing filling oil, 12 parts of sarin resin, 1-10 parts of silicon dioxide and 65 parts of asphalt; the polyarylene sulfide is polyarylene sulfide sulfone, the grafting initiator is maleic anhydride, the extender oil is naphthenic oil, the amount of the extender oil is 14% of the mass of the hydrogenated styrene-butadiene block copolymer, and the asphalt is lake asphalt.
The preparation method of the polymer alloy comprises the following specific steps:
(1) pulverizing lake asphalt at below 10 deg.C; crushing the hydrogenated styrene-butadiene block copolymer and then filling oil;
(2) uniformly mixing polyarylene sulfide, acrylonitrile-butadiene-styrene copolymer, asphalt, impact-resistant polystyrene, hydrogenated styrene-butadiene block copolymer containing filling oil, surlyn resin and silicon dioxide, adding a grafting initiator, and continuously mixing until uniform; then extruding, cooling and granulating to obtain the product.
Example 4
The polymer alloy comprises the following components in parts by mass: 57 parts of polyarylene sulfide, 32 parts of acrylonitrile-butadiene-styrene copolymer, 2.4 parts of grafting initiator, 30 parts of impact-resistant polystyrene, 81 parts of hydrogenated styrene-butadiene block copolymer containing filling oil, 8 parts of sarin resin, 7 parts of silicon dioxide and 45 parts of asphalt; the polyarylene sulfide is polyphenylene sulfide, the grafting initiator is maleic anhydride, the filling oil is white mineral oil, the using amount of the filling oil is 14% of the mass of the hydrogenated styrene-butadiene block copolymer, and the asphalt is lake asphalt.
The preparation method of the polymer alloy comprises the following specific steps:
(1) pulverizing lake asphalt at below 10 deg.C; crushing the hydrogenated styrene-butadiene block copolymer and then filling oil;
(2) uniformly mixing polyarylene sulfide, acrylonitrile-butadiene-styrene copolymer, asphalt, impact-resistant polystyrene, hydrogenated styrene-butadiene block copolymer containing filling oil, surlyn resin and silicon dioxide, adding a grafting initiator, and continuously mixing until uniform; then extruding, cooling and granulating to obtain the product.
Performance detection
The polymer alloys obtained in examples 1 to 4 were examined for tensile strength (23 ℃), elongation at break (23 ℃), dynamic stability, three-point bending strain, strength at bonding and drawing (25 ℃) and strength at bonding and shearing (25 ℃) with steel sheets, and the results are shown in Table 1;
wherein, the tensile strength (23 ℃) and the elongation at break (23 ℃) are detected according to GB/T2567-2008 resin casting body performance test method;
the dynamic stability is detected according to a corresponding method of a T0719 asphalt mixture rut test in JTG E20-2011 road engineering asphalt and asphalt mixture test procedures;
the three-point bending strain is detected according to a corresponding method of T0715 asphalt mixture bending test in JTG E20-2011 road engineering asphalt and asphalt mixture test regulation;
the bonding and pulling strength (25 ℃) with the steel plate and the bonding and shearing strength (25 ℃) with the steel plate are detected according to JC/T975-2005 waterproof coating for roads and bridges.
TABLE 1 Performance test results
| Example 1 | Example 2 | Example 3 | Example 4 | |
| Tensile strength (23 ℃)/MPa | 34.2 | 35.5 | 37.8 | 40.2 |
| Elongation at break (23 ℃)/% | 54.2 | 60.3 | 55.1 | 39.3 |
| Dynamic stability degree/(degree/mm, 60 ℃ C.) | 28000 | 27000 | 29000 | 35000 |
| Three point bending strain/(mu epsilon, -10 ℃ C.) | 4554 | 4574 | 4611 | 4121 |
| Bonding drawing strength (25 ℃) of the steel plate/MPa | 10.8 | 11.5 | 10.4 | 11.3 |
| Viscosity shear strength (25 ℃) of steel plate/MPa | 9.2 | 8.7 | 8.9 | 9.3 |
As can be seen from Table 1, the paving materials of examples 1-4 had a dynamic stability of 27000 and 35000 times/mm (60 ℃). Therefore, the steel bridge deck pavement material has excellent high-temperature anti-rutting performance.
As can be seen from Table 1, the three-point bending strains 4121-4611. mu. epsilon (-10 ℃ C.) are observed for the pavers of examples 1-4. Therefore, the low-temperature cracking resistance of the steel bridge deck pavement material is excellent.
As is clear from Table 1, the pavers of examples 1 to 4 had tensile strengths (23 ℃ C.) of 34.2 to 40.2MPa, elongations at break (23 ℃ C.) of 39.3 to 60.3%, tensile strengths (25 ℃ C.) for bonding to steel plates of 10.4 to 11.5MPa, and shear strengths (25 ℃ C.) for bonding to steel plates of 8.7 to 9.3 MPa. Therefore, the steel bridge deck pavement material provided by the invention is excellent in tensile property and high in bonding strength with a steel plate.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (16)
1. The application of the polymer alloy in paving a steel bridge deck is characterized in that the polymer alloy consists of the following components: 10-100 parts of polyarylene sulfide, 20-50 parts of acrylonitrile-butadiene-styrene copolymer, 1-3 parts of grafting initiator, 20-100 parts of asphalt, 10-30 parts of impact-resistant polystyrene and/or 50-100 parts of hydrogenated styrene-butadiene block copolymer containing filling oil and/or 1-20 parts of sarin resin and/or 1-10 parts of silicon dioxide.
2. Use according to claim 1, wherein the polyarylene sulfide is polyphenylene sulfide or polyarylene sulfide sulfone.
3. Use according to claim 1 or 2, characterized in that the grafting initiator is maleic anhydride.
4. Use according to claim 1 or 2, characterized in that the bitumen is lake bitumen.
5. Use according to claim 3, characterized in that the bitumen is lake bitumen.
6. Use according to claim 1, 2 or 5, wherein the extender oil is a naphthenic oil, a furfural oil, a white mineral oil or a phthalic diester.
7. Use according to claim 3, wherein the extender oil is a naphthenic oil, a furfural oil, a white mineral oil or a phthalic diester.
8. Use according to claim 4, wherein the extender oil is a naphthenic oil, a furfural oil, a white mineral oil or a phthalic diester.
9. Use according to claim 1, 2, 5, 7 or 8, wherein the extender oil is used in an amount of 5% to 20% by mass of the hydrogenated styrene-butadiene block copolymer.
10. Use according to claim 3, wherein the extender oil is used in an amount of 5% to 20% by mass of the hydrogenated styrene-butadiene block copolymer.
11. Use according to claim 4, wherein the extender oil is used in an amount of 5% to 20% by mass of the hydrogenated styrene-butadiene block copolymer.
12. Use according to claim 6, wherein the extender oil is used in an amount of 5% to 20% by mass of the hydrogenated styrene-butadiene block copolymer.
13. The use according to claim 4, wherein the polymer alloy is prepared by a process comprising the steps of:
(1) pulverizing lake asphalt at below 10 deg.C; crushing the hydrogenated styrene-butadiene block copolymer and then filling oil;
(2) uniformly mixing polyarylene sulfide, acrylonitrile-butadiene-styrene copolymer, lake asphalt, impact-resistant polystyrene, hydrogenated styrene-butadiene block copolymer containing filling oil, surlyn resin and silicon dioxide, adding a grafting initiator, and continuously mixing until uniform; then extruding, cooling and granulating to obtain the product.
14. Use according to claim 5, 7, 8, 10, 11 or 12, wherein the polymer alloy is prepared by a process comprising the steps of:
(1) pulverizing lake asphalt at below 10 deg.C; crushing the hydrogenated styrene-butadiene block copolymer and then filling oil;
(2) uniformly mixing polyarylene sulfide, acrylonitrile-butadiene-styrene copolymer, lake asphalt, impact-resistant polystyrene, hydrogenated styrene-butadiene block copolymer containing filling oil, surlyn resin and silicon dioxide, adding a grafting initiator, and continuously mixing until uniform; then extruding, cooling and granulating to obtain the product.
15. The use according to claim 6, wherein the polymer alloy is prepared by a process comprising the steps of:
(1) pulverizing lake asphalt at below 10 deg.C; crushing the hydrogenated styrene-butadiene block copolymer and then filling oil;
(2) uniformly mixing polyarylene sulfide, acrylonitrile-butadiene-styrene copolymer, lake asphalt, impact-resistant polystyrene, hydrogenated styrene-butadiene block copolymer containing filling oil, surlyn resin and silicon dioxide, adding a grafting initiator, and continuously mixing until uniform; then extruding, cooling and granulating to obtain the product.
16. The use according to claim 9, wherein the polymer alloy is prepared by a process comprising the steps of:
(1) pulverizing lake asphalt at below 10 deg.C; crushing the hydrogenated styrene-butadiene block copolymer and then filling oil;
(2) uniformly mixing polyarylene sulfide, acrylonitrile-butadiene-styrene copolymer, lake asphalt, impact-resistant polystyrene, hydrogenated styrene-butadiene block copolymer containing filling oil, surlyn resin and silicon dioxide, adding a grafting initiator, and continuously mixing until uniform; then extruding, cooling and granulating to obtain the product.
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| DE4218838A1 (en) * | 1992-06-09 | 1993-12-16 | Bayer Ag | High impact polyphenylene sulphide] compsns. - made of a blend of PPS, polybutylene terephthalate, ABS graft copolymer rubber and opt. polycarbonate |
| US7351766B2 (en) * | 2002-02-28 | 2008-04-01 | Mitsubishi Rayon Co., Ltd. | Thermoplastic resin composition and engineering plastic composition |
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| CN103450651A (en) * | 2013-08-07 | 2013-12-18 | 奉化市旭日新材料有限公司 | Acrylonitrile-butadiene-styrene (ABS) copolymer flame-retardant alloy |
| CN104312179B (en) * | 2014-11-18 | 2017-01-18 | 吉林市城投筑路材料股份有限公司 | Anti-rut agent |
| CN105713336A (en) * | 2015-12-25 | 2016-06-29 | 上海胜南复合材料有限公司 | High-performance electroplating ABS (acrylonitrile butadiene styrene) alloy material and preparation method thereof |
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