Volume shrinkage and abrasive wear properties of crosslinked Poly(ester-urethane-acrylate)/MMA copolymer: Effect of chain length

Maurya, Shyam Dev; Kurmvanshi, Surendra; Mohanty, Smita; Nayak, Sanjay K.

doi:10.1080/10601325.2017.1387481

Cited by 7 publications

(2 citation statements)

References 27 publications

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“…Inorganic pollutants such as heavy metals have caused serious environmental concerns due to their non-biodegradable properties and potential carcinogenicity (He et al 2016;Ma et al 2017). Cobalt is a bio-essential metal, which plays a vital role in different vitamins B12 and enzymes like carbonic anhydrase and alkaline phosphatases (Maria & Beena 2018). The concentration of cobalt above the permissible limits is hazardous to both humans and animals (Aghagoli et al 2017).…”

Section: Introductionmentioning

confidence: 99%

Adsorption of Co(II) from aqueous solution using municipal sludge biochar modified by HNO3

Hu¹,

Zhang²,

Chen³

et al. 2021

Water Science and Technology

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Herein adsorption studies were proposed on a carboxylated sludge biochar (CSB) material modified by HNO3 to assess its capacity in the removal of cobalt from aqueous solution. The as-prepared sludge biochar material were characterized by Brunaure-Emmett-Teller (BET), Fourier transform infrared (FT-IR), Thermogravimetric analysis (TGA), Energy-dispersive spectroscopy (EDS) and X-ray photoelectron spectroscopy (XPS). The isotherm process could be well described by Langmuir isotherm model. The adsorption kinetics indicated that cobalt adsorption followed pseudo-second-order kinetic model. The mechanism between Co(II) and biochar involved electrostatic interaction, ion exchange, surface complexation and physical function. The adsorption capacity on CSB was as high as 72.27 mg·g−1, surpassing original sludge biochar (SB). This is due to the fact that CSB had abundant oxygen-containing functional groups and many hydroxyls, as well as, the BET surface areas increased when SB was modified by HNO3, which stimulate adsorption effect. Therefore, this work shows that CSB could be used as an efficient adsorbent to remove Co(II) in the wastewater.

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Section: Introductionmentioning

confidence: 99%

Adsorption of Co(II) from aqueous solution using municipal sludge biochar modified by HNO3

Hu¹,

Zhang²,

Chen³

et al. 2021

Water Science and Technology

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“…Urbanization is considered as the lifestyle transformation of the rural people with the increase of the urban built-up area. The historical evidence showed that it is concentrated in particular parts in several places and experience a global scale (Maurya, 2017). The conversion from traditional rural economies to modern industrial and service-based sectors has implications in the urbanization process (Jaysawal & Saha, 2014).…”

Section: Introductionmentioning

confidence: 99%

The Linkage between Urban Built-up and Surface Water Quality: Inferences from the Parts of Karamana River Basin, Thiruvananthapuram, Kerala, India

AbdulKhader

Rema

2021

Preprint

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The linkage between the land use/land cover (LULC) pattern and water quality is an emerging topic in multidisciplinary research. The LULC changes affect water quality in many ways. Change in the land use/land cover, especially urbanization leads to water quality deterioration. This study mainly focuses on the water quality in parts of the river Karamana, which flows through the Thiruvananthapuram urban area. The water quality parameters of six selected sites within the urban area were obtained. Physico-chemical and biological parameters of water quality were analysed for 2019 (pre-monsoon, monsoon, and post-monsoon). The water quality data obtained during the present study were used to characterize the built-up and other areas. Results have shown a distinct variation of parameters in the upstream region (less built-up) than that of the urban area (more built-up). The results have clearly demonstrated the indication of the effect of urbanization on water resources. The speedy development of urban built-up in Thiruvananthapuram city causing severe issues to the water regime in terms of its quality. The data shows that the water quality is poor in the pre-monsoon period in most of the areas. Though the worsening of water quality is limited to a few localized zones, the trend of the quality change is serious. It needs the attention and proper consideration of policy planners and decision-makers. Adequate effluent treatment facilities in the urban regions is the need of the hour to minimize pollution.

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Trifunctional quinoxaline‐based maleimide and its polymer alloys with benzoxazine: Synthesis, characterization, and properties

Wang

Dayo

Wang

et al. 2020

J of Applied Polymer Sci

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Novel quinoxaline-based trismaleimide (2,3-di[3-maleimido]phenyl-6-maleimidoquinoxaline, namely TQMI) and its polymer alloys with 3-phenyl-3,4dihydro-2H-1,3-benzoxazine (P-a) were successfully prepared and characterized. Differential scanning calorimetry investigation of TQMI exhibited distinct double exothermic peaks, which implied that the curing behavior of different type of maleimide group was discrepant. The curing temperature of P-a/TQMI prepolymers was lower than that of both neat TQMI and P-a monomer. The temperatures at 5% (T 5) and 10% (T 10) weight loss and the char yield (Y c) of cured TQMI at 800 C reached 513 C, 524 C, and 63.5%, respectively, which were much higher than the record of traditional 4,4 0bismaleimideodiphenylmethane (BMDPM) resin as well as most of other reported bismaleimide resins. Moreover, the addition of TQMI enhanced thermal stability, glass transition temperature (T g), and limiting oxygen index of benzoxazine resin dramatically. Attractively, the T g value of P-a/ TQMI copolymer at 30 wt% TQMI loadings was approximately 20 C higher than that of P-a/BMDPM copolymer owing to the bulky quinoxaline group.

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Volume shrinkage and abrasive wear properties of crosslinked Poly(ester-urethane-acrylate)/MMA copolymer: Effect of chain length

Cited by 7 publications

References 27 publications

Adsorption of Co(II) from aqueous solution using municipal sludge biochar modified by HNO3

Adsorption of Co(II) from aqueous solution using municipal sludge biochar modified by HNO3

The Linkage between Urban Built-up and Surface Water Quality: Inferences from the Parts of Karamana River Basin, Thiruvananthapuram, Kerala, India

Trifunctional quinoxaline‐based maleimide and its polymer alloys with benzoxazine: Synthesis, characterization, and properties

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