Influence of poly(phosphoric acid) on the properties and structure of ethylene-vinyl acetate-modified bitumen

Zhang Feng; Hu Changbin; Zhang Yu

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Influence of poly(phosphoric acid) on the properties and structure of ethylene-vinyl acetate-modified bitumen

机译：聚（磷酸）对乙烯 - 乙酸乙烯酯改性沥青的性能和结构的影响

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Ethylene-vinyl acetate (EVA) modified (EM) bitumen was modified further by the addition of poly(phosphoric acid) (PPA). Owing to the gelation and acidification effect of PPA, the high-temperature properties and compatibility of EM bitumen were improved greatly. Part dissolution of EVA after acidification was confirmed by the viscous behavior of EVA/PPA-modified (EPM) bitumen in rheological tests to some extent. Morphology observation illustrated the decomposition of EVA in bitumen after PPA modification and ageing. Fourier transform infrared analysis proved that the hydrolysis reaction took place between the vinyl acetate segment of EVA molecule and the extra hydrogen protons of PPA. Thermal analysis displayed the thermodynamic behaviors of EM and EPM bitumens before and after ageing and confirmed the part dissolution of EVA further after PPA acidification. (c) 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 46553.

机译：通过加入聚（磷酸）（PPA）进一步改性乙烯 - 乙酸乙烯酯（EVA）修饰（EM）沥青。由于PPA的凝胶化和酸化效果，高温性能和EM沥青的相容性大大提高。通过在一定程度上通过EVA / PPA改性（EPM）沥青中的粘性行为证实EVA后EVA的部分溶解。形态学观察说明了PPA改性和老化后沥青中EVA的分解。傅里叶变换红外分析证明了水解反应发生在EVA分子的乙酸乙烯酯区段和PPA的额外氢质子之间。热分析在老化之前和之后显示了EM和EPM沥青的热力学行为，并在PPA酸化后进一步证实了EVA的部分溶解。（c）2018 Wiley期刊，Inc.J.Phill。聚合物。 SCI。 2018,135,46553。

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来源
《Journal of Applied Polymer Science》 |2018年第30期|共8页
作者
Zhang Feng; Hu Changbin; Zhang Yu;
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作者单位

Fu Zhou Univ Res Ctr Adv Civil Engn Mat Coll Civil Engn Fuzhou 350108 Fujian Peoples R China;

Fu Zhou Univ Res Ctr Adv Civil Engn Mat Coll Civil Engn Fuzhou 350108 Fujian Peoples R China;

Fu Zhou Univ Res Ctr Adv Civil Engn Mat Coll Civil Engn Fuzhou 350108 Fujian Peoples R China;

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原文格式 PDF
正文语种 eng
中图分类高分子化合物工业（高聚物工业）;
关键词
bitumen; ethylene-vinyl acetate; hydrolysis reaction; poly(phosphoric acid);

机译：沥青;乙烯 - 乙酸乙酯;水解反应;聚（磷酸）;

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Influence of poly(phosphoric acid) on the properties and structure of ethylene-vinyl acetate-modified bitumen

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