Sustainable Approach for Mechanical Recycling of Poly(lactic acid)/Cellulose Nanocrystal Films: Investigations on Structure-Property Relationship and Underlying Mechanism

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Sustainable Approach for Mechanical Recycling of Poly(lactic acid)/Cellulose Nanocrystal Films : Investigations on Structure-Property Relationship and Underlying Mechanism. / Dhar, Prodyut; Rajesh Kumar, M.; Bhasney, Siddharth Mohan; Bhagabati, Purabi; Kumar, Amit; Katiyar, Vimal.

In: Industrial and Engineering Chemistry Research, Vol. 57, No. 43, 2018, p. 14493-14508.

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Dhar, Prodyut ; Rajesh Kumar, M. ; Bhasney, Siddharth Mohan ; Bhagabati, Purabi ; Kumar, Amit ; Katiyar, Vimal. / Sustainable Approach for Mechanical Recycling of Poly(lactic acid)/Cellulose Nanocrystal Films : Investigations on Structure-Property Relationship and Underlying Mechanism. In: Industrial and Engineering Chemistry Research. 2018 ; Vol. 57, No. 43. pp. 14493-14508.

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@article{cb660199fa6141d386e13c4569b9c2ae,
title = "Sustainable Approach for Mechanical Recycling of Poly(lactic acid)/Cellulose Nanocrystal Films: Investigations on Structure-Property Relationship and Underlying Mechanism",
abstract = "This paper presents a green and sustainable route for mechanical recycling of poly(lactic acid) (PLA)/cellulose nanocrystal (CNC) based films multiple times, which results in enhanced thermal, rheological, and structural properties along with improved processability. Recycling of reactively extruded PLA/CNC films in the presence of dicumyl peroxide (DCP) was carried out with sulfuric and hydrochloric acid hydrolyzed CNCs (CNC-S and CNC-Cl). This shows improved thermal stability (improved by 12 °C), consistent Mw characteristics (180-150 kDa), and enhanced melt strength as evident from the thermal degradation studies and viscoelastic properties measured from rheological studies. The improved recyclability of PLA/CNC films was evident from enhanced complex viscosity and storage modulus of melt by ∼4 and 10 times along with increased mechanical strength of ∼16-30{\%} even after the third recycling. Therefore, the present study provides a novel route to recycle PLA-based CNC films after their service life into value-added biodegradable products with adequate properties competitive enough to replace petroleum-based conventional plastics for commodity applications.",
author = "Prodyut Dhar and {Rajesh Kumar}, M. and Bhasney, {Siddharth Mohan} and Purabi Bhagabati and Amit Kumar and Vimal Katiyar",
year = "2018",
doi = "10.1021/acs.iecr.8b02658",
language = "English",
volume = "57",
pages = "14493--14508",
journal = "Industrial and Engineering Chemistry Research",
issn = "0888-5885",
publisher = "AMERICAN CHEMICAL SOCIETY",
number = "43",

}

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TY - JOUR

T1 - Sustainable Approach for Mechanical Recycling of Poly(lactic acid)/Cellulose Nanocrystal Films

T2 - Investigations on Structure-Property Relationship and Underlying Mechanism

AU - Dhar, Prodyut

AU - Rajesh Kumar, M.

AU - Bhasney, Siddharth Mohan

AU - Bhagabati, Purabi

AU - Kumar, Amit

AU - Katiyar, Vimal

PY - 2018

Y1 - 2018

N2 - This paper presents a green and sustainable route for mechanical recycling of poly(lactic acid) (PLA)/cellulose nanocrystal (CNC) based films multiple times, which results in enhanced thermal, rheological, and structural properties along with improved processability. Recycling of reactively extruded PLA/CNC films in the presence of dicumyl peroxide (DCP) was carried out with sulfuric and hydrochloric acid hydrolyzed CNCs (CNC-S and CNC-Cl). This shows improved thermal stability (improved by 12 °C), consistent Mw characteristics (180-150 kDa), and enhanced melt strength as evident from the thermal degradation studies and viscoelastic properties measured from rheological studies. The improved recyclability of PLA/CNC films was evident from enhanced complex viscosity and storage modulus of melt by ∼4 and 10 times along with increased mechanical strength of ∼16-30% even after the third recycling. Therefore, the present study provides a novel route to recycle PLA-based CNC films after their service life into value-added biodegradable products with adequate properties competitive enough to replace petroleum-based conventional plastics for commodity applications.

AB - This paper presents a green and sustainable route for mechanical recycling of poly(lactic acid) (PLA)/cellulose nanocrystal (CNC) based films multiple times, which results in enhanced thermal, rheological, and structural properties along with improved processability. Recycling of reactively extruded PLA/CNC films in the presence of dicumyl peroxide (DCP) was carried out with sulfuric and hydrochloric acid hydrolyzed CNCs (CNC-S and CNC-Cl). This shows improved thermal stability (improved by 12 °C), consistent Mw characteristics (180-150 kDa), and enhanced melt strength as evident from the thermal degradation studies and viscoelastic properties measured from rheological studies. The improved recyclability of PLA/CNC films was evident from enhanced complex viscosity and storage modulus of melt by ∼4 and 10 times along with increased mechanical strength of ∼16-30% even after the third recycling. Therefore, the present study provides a novel route to recycle PLA-based CNC films after their service life into value-added biodegradable products with adequate properties competitive enough to replace petroleum-based conventional plastics for commodity applications.

UR - http://www.scopus.com/inward/record.url?scp=85055279714&partnerID=8YFLogxK

U2 - 10.1021/acs.iecr.8b02658

DO - 10.1021/acs.iecr.8b02658

M3 - Article

VL - 57

SP - 14493

EP - 14508

JO - Industrial and Engineering Chemistry Research

JF - Industrial and Engineering Chemistry Research

SN - 0888-5885

IS - 43

ER -

ID: 29223491