Emission of Volatile Organic Compounds in Crumb Rubber Modified Bitumen and Its Inhibition by Using Montmorillonite Nanoclay

Liu, Gang; Fang, Shuaiyin; Wang, Yong; Liu, Jinjun; Liang, Yangshi; Cao, Tao; Liu, Quantao

doi:10.3390/polym15061513

Cited by 9 publications

(2 citation statements)

References 39 publications

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“…Rohayzi et al [ 17 ] reviewed polyphosphoric acid, Evotherm, mangosteen powder, trimethyl-quinoline and sulfur related to the additives that can improve the properties of rubberized asphalt. Liu et al [ 18 ] have found that montmorillonite (Mt) nano clay could act as an effective modifier by adding Mt nano clay to crumb rubber-modified bitumen binder.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the Thermal Stability and Micro-Modification Mechanism of SBR/PP-Modified Asphalt

Zhang,

Hou,

et al. 2024

Polymers

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To evaluate the thermal stability of composite polymer-modified asphalt, thermoplastic elastomer styrene-butadiene rubber (SBR)/polypropylene (PP) pellets were prepared using a hot-melt blending technique, with butyl rubber powder and waste polypropylene pellets as raw materials. The effects of different evaluation indexes on the thermal stability of SBR/PP-modified asphalt were investigated using a frequency scan test and a multi-stress creep recovery (MSCR) test, and the compatibility of SBR/PP particles with asphalt was studied using the Cole–Cole diagram and microstructure images. The tests show that, firstly, the performance grade (PG) classification of asphalt can be improved by adding an SBR/PP thermoplastic elastomer to enhance the adaptability of asphalt in high- and low-temperature environments, and the evaluation separation index can reflect the high-temperature storage stability of composite-modified asphalt more reasonably. Additionally, the larger the rubber-to-plastic ratio the worse the high-temperature thermal stability of composite-modified asphalt. Moreover, the addition of additives to the composite particles can promote the SBR/PP particles in the asphalt to be more uniformly dispersed, forming a more desirable microstructure and improving the thermal stability of composite-modified asphalt. Ultimately, the semicircular curve of the Cole–Cole diagram can reflect the compatibility characteristics of the two-phase structure of SBR/PP-modified asphalt, which can be used as an auxiliary index to evaluate the compatibility of polymer-modified asphalt.

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Section: Introductionmentioning

confidence: 99%

Evaluation of the Thermal Stability and Micro-Modification Mechanism of SBR/PP-Modified Asphalt

Zhang,

Hou,

et al. 2024

Polymers

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“…HiSorb-TD, as an emerging pre-treatment method for volatile substances, is usually combined with gas chromatography-mass spectrometry (GC-MS). At present, it has been applied in the detection of environmental air [ 21 , 22 ] and chemical material security [ 23 , 24 ], but not in food, especially in raw meat.…”

Section: Introductionmentioning

confidence: 99%

Characterization and Discrimination of Volatile Compounds in Chilled Tan Mutton Meat during Storage Using HiSorb-TD-GC-MS and E-Nose

Yang

Chen

et al. 2023

Molecules

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Chilled Tan mutton is currently the mainstream of Tan mutton production and consumption in China, but the reports on chilled meat quality evaluation and shelf-life discrimination by volatiles are limited. This study aimed to investigate the changes of volatile compounds in chilled Tan mutton at four storage stages (1d, 3d, 5d, 7d) in order to differentiate the various storage stages. An analysis protocol was established for the characterization and discrimination of the volatiles in chilled Tan mutton based on high capacity sorptive extraction-thermal desorption-gas coupled with chromatography-mass spectrometry (HiSorb-TD-GC-MS), electronic nose (E-nose), and multivariate statistical analysis. A total of 96 volatile compounds were identified by HiSorb-TD-GC-MS, in which six compounds with relative odor activity value >1 were screened as the key characteristic volatiles in chilled Tan mutton. Four storage stages were discriminated by partial least squares discriminant analysis, and nine differential volatile compounds showed a variable importance for the projection score >1, including octanoic acid, methyl ester, decanoic acid, methyl ester, acetic acid, heptanoic acid, methyl ester, propanoic acid, 2-hydroxy-, methyl ester, (ñ)-, hexanoic acid, propanoic acid, butanoic acid, and nonanoic acid. With the volcano plot analysis, hexadecanoic acid, methyl ester, was the common volatile marker candidate to discriminate chilled stages of Tan mutton. Meanwhile, E-nose could discriminate chilled Tan mutton at different storage stages rapidly and efficiently using linear discriminant analysis. Furthermore, E-nose sensors could obtain comprehensive volatile profile information, especially in esters, acids, and alcohols, which could confirm the potential of E-nose for meat odor recognition. Thus, this analysis protocol could characterize and discriminate the volatiles in chilled Tan mutton during storage.

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Emission reduction agents: A solution to inhibit the emission of harmful volatile organic compounds from crumb rubber modified bitumen

Borinelli,

Portillo-Estrada,

Costa

et al. 2024

Construction and Building Materials

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Emission of Volatile Organic Compounds in Crumb Rubber Modified Bitumen and Its Inhibition by Using Montmorillonite Nanoclay

Cited by 9 publications

References 39 publications

Evaluation of the Thermal Stability and Micro-Modification Mechanism of SBR/PP-Modified Asphalt

Evaluation of the Thermal Stability and Micro-Modification Mechanism of SBR/PP-Modified Asphalt

Characterization and Discrimination of Volatile Compounds in Chilled Tan Mutton Meat during Storage Using HiSorb-TD-GC-MS and E-Nose

Emission reduction agents: A solution to inhibit the emission of harmful volatile organic compounds from crumb rubber modified bitumen

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