线型SBS改性沥青不同时程老化流变特征及阶段判别
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摘要
为探究线型SBS改性沥青老化过程中流变特性的演化与微观结构的变化机理,采用频率扫描试验、流变主曲线、多重应力蠕变回复试验(MSCR)及傅里叶变换红外光谱试验(FT-IR)分别分析线型SBS改性沥青在不同时程老化程度下多温度域的流变特性及官能团变化.研究表明,采用相位角频率扫描(75、65、55℃)或第一次循环J_(nr)3.2离散率指标,可以将线型SBS改性沥青的老化分为初期、中期、后期3个阶段,不同的阶段呈现不同的流变特征.聚丁二烯指数与线型SBS改性沥青老化初期和中期的相位角主曲线平台区临界点有较好的线性相关性.
To explore the evolution of rheological properties and the mechanism of microstructure change of linear styrene-butadiene-styrone block copolymers(SBS) in the aging process, the frequency sweep test, master curve and multiple stress creep recovery(MSCR) test were performed to stduy rheological properties in multiple-temperature domains at different aging time; Fourier transform infrared(FT-IR) spectroscopy was performed to study the changes of chemical functional groups. The results show that phase angle frequency sweep(75, 65 and 55 ℃) or the first cycle discrete rate of J_(nr)3.2 can divide linear SBS modified asphalt aging process into three phases with different rheological properties, including initial phase, middle phase and late phase. Polybutadiene(PB) index has a good linear correlation with the master curve plateaus critical frequency in the initial and middle phases of linear SBS in the modified asphalt aging process.
To explore the evolution of rheological properties and the mechanism of microstructure change of linear styrene-butadiene-styrone block copolymers(SBS) in the aging process, the frequency sweep test, master curve and multiple stress creep recovery(MSCR) test were performed to stduy rheological properties in multiple-temperature domains at different aging time; Fourier transform infrared(FT-IR) spectroscopy was performed to study the changes of chemical functional groups. The results show that phase angle frequency sweep(75, 65 and 55 ℃) or the first cycle discrete rate of J_(nr)3.2 can divide linear SBS modified asphalt aging process into three phases with different rheological properties, including initial phase, middle phase and late phase. Polybutadiene(PB) index has a good linear correlation with the master curve plateaus critical frequency in the initial and middle phases of linear SBS in the modified asphalt aging process.
引文
[1] 李双瑞, 林青, 董声雄. SBS改性沥青机理研究进展[J]. 高分子通报, 2008(5): 14-19.Li S R, Lin Q, Dong S X. Progress in mechanism of SBS-modified asphalts[J]. Chinese Polymer Bulletin, 2008(5): 14-19.(in Chinese)
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[4] 祁文洋, 李立寒, 张明杰, 等. SBS改性沥青的阶段性老化特征与机理[J]. 同济大学学报(自然科学版), 2016, 44(1): 95-99. DOI:10.11908/j.issn.0253-374x.2016.01.014.Qi W Y, Li L H, Zhang M J, et al. Characteristics and mechanism of SBS modified asphalt's phased aging[J]. Journal of Tongji University(Natural Science), 2016, 44(1): 95-99. DOI:10.11908/j.issn.0253-374x.2016.01.014.(in Chinese)
[5] 陈华鑫, 周燕, 王秉纲. SBS改性沥青老化后的动态力学性能[J]. 长安大学学报(自然科学版), 2009, 29(1): 1-5. DOI:10.19721/j.cnki.1671-8879.2009.01.001.Chen H X, Zhou Y, Wang B G. Dynamic mechanics performance of aged SBS modified-asphalt[J]. Journal of Chang'an University(Natural Science Edition), 2009, 29(1): 1-5. DOI:10.19721/j.cnki.1671-8879.2009.01.001.(in Chinese)
[6] 赵永利, 顾凡, 黄晓明. 基于FTIR的SBS改性沥青老化特性分析[J]. 建筑材料学报, 2011, 14(5): 620-623. DOI:10.3969/j.issn.1007-9629.2011.05.008.Zhao Y L, Gu F, Huang X M. Analysis on SBS modified asphalt aging characterization based on fourier transform infrared spectroscopy[J]. Journal of Building Materials, 2011, 14(5): 620-623. DOI:10.3969/j.issn.1007-9629.2011.05.008.(in Chinese)
[7] Yusoff N I M, Jakarni F M, Nguyen V H, et al. Modelling the rheological properties of bituminous binders using mathematical equations[J]. Construction and Building Materials, 2013, 40: 174-188. DOI:10.1016/j.conbuildmat.2012.09.105.
[8] Asgharzadeh S M, Tabatabaee N, Naderi K, et al. Evaluation of rheological master curve models for bituminous binders[J]. Materials and Structures, 2015, 48(1/2): 393-406. DOI:10.1617/s11527-013-0191-5.
[9] Hao G R, Huang W D, Yuan J, et al. Effect of aging on chemical and rheological properties of SBS modified asphalt with different compositions[J]. Construction and Building Materials, 2017, 156: 902-910. DOI:10.1016/j.conbuildmat.2017.06.146.
[10] D'Angelo J A. The relationship of the MSCR test to rutting[J]. Road Materials and Pavement Design, 2009, 10(sup1): 61-80. DOI:10.1080/14680629.2009.9690236.
[11] Larsen D O, Alessandrini J L, Bosch A, et al. Micro-structural and rheological characteristics of SBS-asphalt blends during their manufacturing[J]. Construction and Building Materials, 2009, 23(8): 2769-2774. DOI:10.1016/j.conbuildmat.2009.03.008.
[12] Yan C Q, Huang W D, Xiao F P, et al. Proposing a new infrared index quantifying the aging extent of SBS-modified asphalt[J]. Road Materials and Pavement Design, 2018, 19(6): 1406-1421. DOI:10.1080/14680629.2017.1318082.
[13] Migliori F, Corté J F. Comparativestudy of RTFOT and PAV aging simulation laboratory tests[J]. Transportation Research Record: Journal of the Transportation Research Board, 1998, 1638(1): 56-63. DOI:10.3141/1638-07.
[14] Wasage T L J, Stastna J, Zanzotto L. Rheological analysis of multi-stress creep recovery (MSCR) test[J].International Journal of Pavement Engineering, 2011, 12(6): 561-568. DOI:10.1080/10298436.2011.573557.
[15] Canto L B, Mantovani G L, de Azevedo E R, et al. Molecular characterization of styrene-Butadiene-styrene block copolymers (SBS) by GPC, NMR, and FTIR[J]. Polymer Bulletin, 2006, 57(4): 513-524. DOI:10.1007/s00289-006-0577-4.
[2] 肖鹏. SBS物理和化学改性沥青及混合料性能评价对比研究[D]. 南京: 河海大学, 2005.Xiao P. Evaluation and comparison research on performance of SBS physical and chemical modified asphalts and mixtures[D]. Nanjing: Hohai University, 2005.(in Chinese)
[3] Dong F Q, Zhao W Z, Zhang Y Z, et al. Influence of SBS and asphalt on SBS dispersion and the performance of modified asphalt[J]. Construction and Building Materials, 2014, 62: 1-7. DOI:10.1016/j.conbuildmat.2014.03.018.
[4] 祁文洋, 李立寒, 张明杰, 等. SBS改性沥青的阶段性老化特征与机理[J]. 同济大学学报(自然科学版), 2016, 44(1): 95-99. DOI:10.11908/j.issn.0253-374x.2016.01.014.Qi W Y, Li L H, Zhang M J, et al. Characteristics and mechanism of SBS modified asphalt's phased aging[J]. Journal of Tongji University(Natural Science), 2016, 44(1): 95-99. DOI:10.11908/j.issn.0253-374x.2016.01.014.(in Chinese)
[5] 陈华鑫, 周燕, 王秉纲. SBS改性沥青老化后的动态力学性能[J]. 长安大学学报(自然科学版), 2009, 29(1): 1-5. DOI:10.19721/j.cnki.1671-8879.2009.01.001.Chen H X, Zhou Y, Wang B G. Dynamic mechanics performance of aged SBS modified-asphalt[J]. Journal of Chang'an University(Natural Science Edition), 2009, 29(1): 1-5. DOI:10.19721/j.cnki.1671-8879.2009.01.001.(in Chinese)
[6] 赵永利, 顾凡, 黄晓明. 基于FTIR的SBS改性沥青老化特性分析[J]. 建筑材料学报, 2011, 14(5): 620-623. DOI:10.3969/j.issn.1007-9629.2011.05.008.Zhao Y L, Gu F, Huang X M. Analysis on SBS modified asphalt aging characterization based on fourier transform infrared spectroscopy[J]. Journal of Building Materials, 2011, 14(5): 620-623. DOI:10.3969/j.issn.1007-9629.2011.05.008.(in Chinese)
[7] Yusoff N I M, Jakarni F M, Nguyen V H, et al. Modelling the rheological properties of bituminous binders using mathematical equations[J]. Construction and Building Materials, 2013, 40: 174-188. DOI:10.1016/j.conbuildmat.2012.09.105.
[8] Asgharzadeh S M, Tabatabaee N, Naderi K, et al. Evaluation of rheological master curve models for bituminous binders[J]. Materials and Structures, 2015, 48(1/2): 393-406. DOI:10.1617/s11527-013-0191-5.
[9] Hao G R, Huang W D, Yuan J, et al. Effect of aging on chemical and rheological properties of SBS modified asphalt with different compositions[J]. Construction and Building Materials, 2017, 156: 902-910. DOI:10.1016/j.conbuildmat.2017.06.146.
[10] D'Angelo J A. The relationship of the MSCR test to rutting[J]. Road Materials and Pavement Design, 2009, 10(sup1): 61-80. DOI:10.1080/14680629.2009.9690236.
[11] Larsen D O, Alessandrini J L, Bosch A, et al. Micro-structural and rheological characteristics of SBS-asphalt blends during their manufacturing[J]. Construction and Building Materials, 2009, 23(8): 2769-2774. DOI:10.1016/j.conbuildmat.2009.03.008.
[12] Yan C Q, Huang W D, Xiao F P, et al. Proposing a new infrared index quantifying the aging extent of SBS-modified asphalt[J]. Road Materials and Pavement Design, 2018, 19(6): 1406-1421. DOI:10.1080/14680629.2017.1318082.
[13] Migliori F, Corté J F. Comparativestudy of RTFOT and PAV aging simulation laboratory tests[J]. Transportation Research Record: Journal of the Transportation Research Board, 1998, 1638(1): 56-63. DOI:10.3141/1638-07.
[14] Wasage T L J, Stastna J, Zanzotto L. Rheological analysis of multi-stress creep recovery (MSCR) test[J].International Journal of Pavement Engineering, 2011, 12(6): 561-568. DOI:10.1080/10298436.2011.573557.
[15] Canto L B, Mantovani G L, de Azevedo E R, et al. Molecular characterization of styrene-Butadiene-styrene block copolymers (SBS) by GPC, NMR, and FTIR[J]. Polymer Bulletin, 2006, 57(4): 513-524. DOI:10.1007/s00289-006-0577-4.