Using Activated Carbon to Reduce the Volatile Organic Compounds from Bituminous Materials

Xiao, Yue; Wang, Miao; Kj, Jenkins; Wu, Shao Peng; Cui, Peiqiang

doi:10.1061/(asce)mt.1943-5533.0002024

Cited by 56 publications

(12 citation statements)

References 29 publications

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“…The oil absorption of persistent phosphors shows the organic compatibility, indicating the compatibility with other organic solutions in waterborne coatings such as auxiliaries and binders [29][30][31]. Four samples were prepared to evaluate the organic compatibility based on the oil absorption test according to the ISO787-5-1980 as shown in Figure 13.…”

Section: Organic Compatibility Of Persistent Phosphorsmentioning

confidence: 99%

The Improvement of Moisture Resistance and Organic Compatibility of SrAl2O4: Eu2+, Dy3+ Persistent Phosphors Coated with Silica–Polymer Hybrid Shell

Lyu

Chen

et al. 2020

Materials

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The existing road surface marking with poor visibility at night results in traffic safety hazards in insufficient lighting roads. This study aims to prepare the dedicated aluminate-based persistent phosphors considering the integrated pavement environment, as the first step to achieve the durable luminescent road surface marking. SrAl2O4: Eu2+, Dy3+ persistent phosphors coated with silica–polymer hybrid shell were prepared by chemical precipitation and sol-gel method to improve moisture resistance and organic compatibility. The optimum silane coupling agent type and dosage, the surfactant dosage, the optimum sodium silicate dosage, and the coating reaction time in silica shell and polymer shell coating were studied based on the moisture resistance test. The silica–polymer hybrid shell coating balances the organic compatibility and thermal stability as compared to the silica or polymer shell coating in the oil absorption test and thermogravimetric analysis. Ex-Em Spectra, XRD, and SEM method were used to characterize the persistent phosphors, indicating the preparation does not destroy the persistent phosphors. The outstanding durable properties of SrAl2O4: Eu2+, Dy3+ persistent phosphors coated with silica–polymer hybrid shell as shown in this research is crucial for its potential application in waterborne luminescent coatings of road surface marking.

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Section: Organic Compatibility Of Persistent Phosphorsmentioning

confidence: 99%

The Improvement of Moisture Resistance and Organic Compatibility of SrAl2O4: Eu2+, Dy3+ Persistent Phosphors Coated with Silica–Polymer Hybrid Shell

Lyu

Chen

et al. 2020

Materials

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“…Inspired by the works of Xiao et al [19], UV-Vis spectrophotometer (Specord 210 plus, Germany) was used to determine total VOCs of different samples. The samples were heated to 80 °C, in a necked flask, to accelerate the VOCs emission.…”

Section: Ultraviolet-visible Spectrophotometry Characterizationmentioning

confidence: 99%

“…The solutions with VOCs absorbed from different samples were evaluated by UV-Vis as previously described. Based on the defined calibration curve, the amount of VOCs (W) from 4 g of artificial leather sample was calculated according to the following equation [19]:…”

Section: Characterization Of Vocs Emissions Amountsmentioning

confidence: 99%

Getting rid of the unpleasant odor in new artificial leather using natural and synthetic fragrances

Gargoubi

Chaouch

Stambouli

et al. 2019

CI&CEQ

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Article Highlights• Removal of unpleasant odor is important in the production of fresh artificial leather • The use of essential oil is an expensive solution since high concentrations are needed • The use of synthetic fragrance combined with paraffin oil is an effective solution • Fragrance concentration and mixture are optimized to be efficient and economical Abstract Usually, new artificial leather items are very smelly because they have been created using numerous chemicals. Their full smell remains until they become old enough. Removal of unpleasant chemical odor is important to preserve the safety and health at workplaces, to meet the demands of consumers and to develop marketing strategies. In this work, we focus on studying odor abatement using natural and synthetic fragrances. We have found that, in well-defined conditions, both types of fragrances efficiently hide the chemical odor. However, the use of the synthetic one combined with paraffin oil was more effective and cheaper.Artificial leather is generally a coated textile substrate made by covering a textile fabric base with a soft polyurethane (PU) or polyvinyl chloride (PVC) layer. This leather-like fabric is used in many industries such as clothing, footwear, automotive and upholstery and it is increasingly demanded to substitute natural leather which is costly and available in irregular pieces [1].Certainly, leather-like materials are cost effective, more versatile and animal-friendly. However, both PU and PVC artificial leather have commonly been associated with an unpleasant chemical odor, which comes out during the coating at high temperature, from evolved volatile organic compounds like hydrogen chloride, substituted benzenes, aldehydes and phthalic anhydride [2-4]. These chemicals dissipate over time, but their smells don't go away completely.

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“…With the palpable trend of environmental sustainability development in the field of asphalt pavement [1,2], the preventive maintenance technology has been given increasing emphasis which has proved as a promising approach for alleviating pavement distresses and prolonging service life [3]. Preventive maintenance technology can make a significant difference by using some preliminary methods to control the pavement distresses before deterioration occurs [4,5].…”

Section: Introductionmentioning

confidence: 99%

Diffusion Mechanism of Rejuvenator and Its Effects on the Physical and Rheological Performance of Aged Asphalt Binder

et al. 2019

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Using rejuvenator to improve the asphalt pavement service state has become an increasing concern in recent years. This study mainly focuses on the diffusion analysis between rejuvenator and aged asphalt, and further rheological influences by addition of rejuvenators. First, two rejuvenators, oil rejuvenator (OR) and penetrative rejuvenator (PR), were prepared in the laboratory. Afterward, the diffused performance of rejuvenators was investigated by viscosity, contact angle, and three self-designed feasible test indexes, which were sinking time test, softening rate test, and gravitational collapsing test. Beside the comparison in physical properties tests of aged and rejuvenated asphalt, their rheological performances were also evaluated by dynamic shear rheometer (DSR) and bending beam rheometer (BBR) respectively. The results indicated that three proposed indexes can comparatively analyze the diffusion rate of different rejuvenators on aged asphalt effectively. Furthermore, all adopted test indexes signaled that PR has a faster diffusion rate and better penetrative efficiency. Comparatively, exceeding rejuvenator dosage would increase the rutting possibility. Nevertheless, 2.5 wt% addition dosage for both OR and PR into aged asphalt can promote appropriate improvement in physical properties and crack resistance. The study would supply a significant reference for penetrative rejuvenator preparation and its diffusing evaluation.

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Using Activated Carbon to Reduce the Volatile Organic Compounds from Bituminous Materials

Cited by 56 publications

References 29 publications

The Improvement of Moisture Resistance and Organic Compatibility of SrAl2O4: Eu2+, Dy3+ Persistent Phosphors Coated with Silica–Polymer Hybrid Shell

The Improvement of Moisture Resistance and Organic Compatibility of SrAl2O4: Eu2+, Dy3+ Persistent Phosphors Coated with Silica–Polymer Hybrid Shell

Getting rid of the unpleasant odor in new artificial leather using natural and synthetic fragrances

Diffusion Mechanism of Rejuvenator and Its Effects on the Physical and Rheological Performance of Aged Asphalt Binder

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