Free radical induced grafting of acrylonitrile on pre-treated rice straw for enhancing its durability and flame retardancy

Mukherjee, Aparna; Halder, Seema; Datta, Deepshikha; Anupam, Kumar; Hazra, Bodhisatwa; Mandal, Mrinal Kanti; Halder, Gopinath

doi:10.1016/j.jare.2016.12.003

Cited by 14 publications

(6 citation statements)

References 37 publications

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“…The proximate analysis of rice straw is compared with wheat straw and sugarcane bagasse (Table ). It showed that ash and silica content of rice straw is significantly higher in comparison to wheat straw and sugarcane bagasse …”

Section: Rice Straw Structural Constituents and Characteristicsmentioning

confidence: 99%

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Rice straw as a feedstock for biofuels: Availability, recalcitrance, and chemical properties

Satlewal

Agrawal

Bhagia

et al. 2017

Biofuels Bioprod Bioref

150

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The surplus availability of rice straw, its limited usage, and environmental pollution caused by its ineffi cient burning has fostered research for its valorization to biofuels. This review elucidates the current status of rice straw potential around the globe along with recent advances in revealing the critical factors responsible for its recalcitrance and chemical properties. The role and accumulation of high silica content in rice straw has been elucidated with its impact on enzymatic hydrolysis in a biorefi nery environment. The correlation of different pre-treatment approaches in modifying the physiochemical properties of rice straw and improving the enzymatic accessibility has also been discussed. This study highlights new challenges, resolutions, and opportunities for rice straw based biorefi neries.

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Section: Rice Straw Structural Constituents and Characteristicsmentioning

confidence: 99%

“…It showed that ash and silica content of rice straw is signifi cantly higher in comparison to wheat straw and sugarcane bagasse. [47][48][49][50][51][52][53][54]…”

Section: Rice Straw Structural Constituents and Characteristicsmentioning

confidence: 99%

Rice straw as a feedstock for biofuels: Availability, recalcitrance, and chemical properties

Satlewal

Agrawal

Bhagia

et al. 2017

Biofuels Bioprod Bioref

150

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“…The extent of grafting of monomer depends on the concentration of monomer in the reaction mixture which significantly increased the grafting yield when higher concentrations of monomer added. Above 1:10 ratio, the increase in grafting was small that might be due to increase in homopolymerization process …”

Section: Resultsmentioning

confidence: 95%

Development of amidoxime functionalized silica by radiation‐induced grafting

Khan

Yasin

Hussain

2017

J of Applied Polymer Sci

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A novel amidoxime‐based silica adsorbent was prepared by using radiation‐induced grafting technique. Grafting of acrylonitrile (AN) on silanized silica that was silanized by vinyltriethoxysilane (VTES) was carried out in solvent‐free system. The grafting of AN was increased with increasing the absorbed dose and monomer concentration in the mixture. Grafting of 748% of AN was achieved at 20 kGy dose. The nitrile groups of acrylonitrile grafted silica (AN‐g‐S) were chemically converted into amidoxime groups. The structure of AN‐g‐S and its corresponding products was investigated by FTIR, SEM, TGA, BET, and XRD analysis. FTIR and EDX analysis confirmed the grafting of AN onto silica surface. The changed morphology of SEM images shows the presence polyacrylonitrile layers on silica particles. The adsorption application of amidoxime‐grafted silica (AO‐g‐S) was studied against Cu2+. Its adsorption capacity is strongly depended on the pH of the solution and 172 (mg/g) of Cu2+ uptake was obtained at pH 5.0. The developed adsorbent has potential application to remove heavy metal ions from aqueous solutions. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 45437.

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“…Proximate analysis of rice straw, wheat straw, sugarcane bagasse, and corn stover reveals that ash percentages are 7.8 to 20.3%, 5.2 to 10.5%, 0.9 to 11.5%, and 2.65 to 10.5%, respectively. Based on these amounts, rice straw has higher ash percentage compared to other agricultural residues (Lizotte and Champlain 2015;Reza and Coronella 2015;Aristizábal et al 2016;Shariff et al 2016;Yao et al 2016;Zanatta et al 2016;Mukherjee and Halder 2017;Mensah and Awudza 2021;Zhong et al 2021). The silica content in ash obtained from rice straw is nearby 75% (Jha and Sinha 2011).…”

Section: Introductionmentioning

confidence: 99%

Rice straw as a source of nanocellulose for sustainable food packaging materials: A Review

Islam

Saini

Das

et al. 2022

BioRes

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Asian countries, despite being the largest producers and yielding a significant proportion of the world’s rice, have poor disposal facilities for the harvested rice straw (stubble). Due to higher costs in their handling relative to their value, local farmers prefer the burning of stubble fields, thus creating environmental problems. Even though the government has taken initiatives, no effective solution has been discovered to handle this large agro-waste problem efficiently. In this regard, the utilization of rice straw to develop nanocellulose (NC) products is of interest. Renewability and biodegradability, along with suitable mechanical and thermal properties required for the packaging functions, are key advantages of NC. The bio-nanocomposites prepared using NC and other bio-based polymers are also being widely considered for sustainable food packaging applications due to the reinforcement provided by NC and alternative petroleum-based packaging materials. This review provides an overview of process utilization for preparing NC products using rice straw, pulping methods, and isolation to produce bio-nanocomposites for sustainable food packaging applications. The challenges and future aspects covering the utilization of rice straw for producing NC and eventually producing active packaging materials are also discussed.

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Free radical induced grafting of acrylonitrile on pre-treated rice straw for enhancing its durability and flame retardancy

Abstract: Graphical abstract

Cited by 14 publications

References 37 publications

Rice straw as a feedstock for biofuels: Availability, recalcitrance, and chemical properties

Rice straw as a feedstock for biofuels: Availability, recalcitrance, and chemical properties

Development of amidoxime functionalized silica by radiation‐induced grafting

Rice straw as a source of nanocellulose for sustainable food packaging materials: A Review

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