DEVULCANIZED CRUMB RUBBER AS BITUMEN MODIFIER

被引：0
|
作者：
Vasilievici, Gabriel [1 ]
Mirt, Andreea-Luiza [1 ]
Ghimis, Simona [1 ]
Zaharia, Emilian [2 ]
Bombos, Mihaela [2 ]
Bombos, Dorin [2 ,3 ]
机构：
[1] Natl Inst Res Dev Chem & Petrochem ICECHIM Buchare, 202 Spl Independentei, Bucharest 060021, Romania
[2] ATICA Chem SRL, 202 Cazanesti Str, Ramnicu Valcea 240414, Valcea, Romania
[3] Petr Gas Univ, Fac Petr Refining & Petrochem, Bucharest Blvd 39, RO-10068 Ploiesti, Prahova, Romania
来源：
STUDIA UNIVERSITATIS BABES-BOLYAI CHEMIA | 2024年 / 69卷 / 02期
关键词：
crumbrubber; desulfurization; molybdenumcatalysts; ASPHALT;
D O I：
10.24193/subbchem.2024.2.03
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The dispersion of crumb rubber in road bitumen is essential for enhancing the elasticity of asphalt coatings. However, elastomer cross-linking through vulcanization can reduce the colloidal stability of bitumen. This study aims to enhance compatibility by partially devulcanizing crumb rubber using a pulverulent catalyst, specifically phosphomolybdic acid, in a batch reactor at 270 degrees C. The use of a molybdenum-based catalyst is preferred due to its effectiveness in catalyzing the devulcanization process. Additionally, further conditioning of the catalyst through grinding optimizes contact with crumb rubber, enhancing catalyst activity and improving overall compatibility with road bitumen
引用
收藏
页码：37 / 47
页数：11
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