Halloysite nanotubes grafted polylactic acid and its composites with enhanced interfacial compatibility

Yuanyuan Li; Peixian Li; Minjie Wu; Xiaoyan Yu; Kimiyoshi Naito; Qingxin Zhang

doi:10.1002/app.49668

Halloysite nanotubes grafted polylactic acid and its composites with enhanced interfacial compatibility

Yuanyuan Li, Peixian Li, Minjie Wu, Xiaoyan Yu, Kimiyoshi Naito, Qingxin Zhang

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

Polylactic acid (PLA) polymers are promising substitutes for polluting fossil fuel-derived polymers in the field of food safety due to their environmental friendliness, good biocompatibility, and degradability. However, their poor mechanical property limits their practical utilization. In this study, abundant natural halloysite nanotubes (HNTs) were incorporated into PLA to address these issues. To overcome interfacial incompatibility between the matrix (PLA) and nanofillers (HNTs), 3-Aminopropyltrimethoxysilane (APS) were firstly grafted onto HNTs to form end-up amino groups which were served as binding sites for the polycondensation of lactic acid precursors. This formed PLA modified HNTs (pHNTs) precursor was further mixed with bulk PLA polymers to prepare the composite films by the solvent casting method. Compared with the pristine composite, the PLA/pHNTs composites show better thermal stability and mechanical properties, and the composite with 2 wt% pHNTs exhibits the best performance.

Original language	English
Article number	49668
Journal	Journal of Applied Polymer Science
Volume	138
Issue number	2
DOIs	https://doi.org/10.1002/app.49668
Publication status	Published - 2021 Jan 10
Externally published	Yes

Keywords

biodegradable
clay
composites
grafting
mechanical properties

ASJC Scopus subject areas

Chemistry(all)
Surfaces, Coatings and Films
Polymers and Plastics
Materials Chemistry

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10.1002/app.49668

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title = "Halloysite nanotubes grafted polylactic acid and its composites with enhanced interfacial compatibility",

abstract = "Polylactic acid (PLA) polymers are promising substitutes for polluting fossil fuel-derived polymers in the field of food safety due to their environmental friendliness, good biocompatibility, and degradability. However, their poor mechanical property limits their practical utilization. In this study, abundant natural halloysite nanotubes (HNTs) were incorporated into PLA to address these issues. To overcome interfacial incompatibility between the matrix (PLA) and nanofillers (HNTs), 3-Aminopropyltrimethoxysilane (APS) were firstly grafted onto HNTs to form end-up amino groups which were served as binding sites for the polycondensation of lactic acid precursors. This formed PLA modified HNTs (pHNTs) precursor was further mixed with bulk PLA polymers to prepare the composite films by the solvent casting method. Compared with the pristine composite, the PLA/pHNTs composites show better thermal stability and mechanical properties, and the composite with 2 wt% pHNTs exhibits the best performance.",

keywords = "biodegradable, clay, composites, grafting, mechanical properties",

author = "Yuanyuan Li and Peixian Li and Minjie Wu and Xiaoyan Yu and Kimiyoshi Naito and Qingxin Zhang",

note = "Funding Information: This study was supported by National Natural Science Foundation of China (51573037) and Natural Science Foundation of Hebei Province, China (B2017202281, E2019202348). Funding Information: Natural Science Foundation of Hebei Province, Grant/Award Numbers: B2017202281, E2019202348; National Natural Science Foundation of China, Grant/Award Number: 51573037 Funding information Publisher Copyright: {\textcopyright} 2020 Wiley Periodicals LLC",

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doi = "10.1002/app.49668",

language = "English",

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journal = "Journal of Applied Polymer Science",

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AU - Li, Yuanyuan

AU - Li, Peixian

AU - Wu, Minjie

AU - Yu, Xiaoyan

AU - Naito, Kimiyoshi

AU - Zhang, Qingxin

N1 - Funding Information: This study was supported by National Natural Science Foundation of China (51573037) and Natural Science Foundation of Hebei Province, China (B2017202281, E2019202348). Funding Information: Natural Science Foundation of Hebei Province, Grant/Award Numbers: B2017202281, E2019202348; National Natural Science Foundation of China, Grant/Award Number: 51573037 Funding information Publisher Copyright: © 2020 Wiley Periodicals LLC

PY - 2021/1/10

Y1 - 2021/1/10

N2 - Polylactic acid (PLA) polymers are promising substitutes for polluting fossil fuel-derived polymers in the field of food safety due to their environmental friendliness, good biocompatibility, and degradability. However, their poor mechanical property limits their practical utilization. In this study, abundant natural halloysite nanotubes (HNTs) were incorporated into PLA to address these issues. To overcome interfacial incompatibility between the matrix (PLA) and nanofillers (HNTs), 3-Aminopropyltrimethoxysilane (APS) were firstly grafted onto HNTs to form end-up amino groups which were served as binding sites for the polycondensation of lactic acid precursors. This formed PLA modified HNTs (pHNTs) precursor was further mixed with bulk PLA polymers to prepare the composite films by the solvent casting method. Compared with the pristine composite, the PLA/pHNTs composites show better thermal stability and mechanical properties, and the composite with 2 wt% pHNTs exhibits the best performance.

AB - Polylactic acid (PLA) polymers are promising substitutes for polluting fossil fuel-derived polymers in the field of food safety due to their environmental friendliness, good biocompatibility, and degradability. However, their poor mechanical property limits their practical utilization. In this study, abundant natural halloysite nanotubes (HNTs) were incorporated into PLA to address these issues. To overcome interfacial incompatibility between the matrix (PLA) and nanofillers (HNTs), 3-Aminopropyltrimethoxysilane (APS) were firstly grafted onto HNTs to form end-up amino groups which were served as binding sites for the polycondensation of lactic acid precursors. This formed PLA modified HNTs (pHNTs) precursor was further mixed with bulk PLA polymers to prepare the composite films by the solvent casting method. Compared with the pristine composite, the PLA/pHNTs composites show better thermal stability and mechanical properties, and the composite with 2 wt% pHNTs exhibits the best performance.

KW - biodegradable

KW - clay

KW - composites

KW - grafting

KW - mechanical properties

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Halloysite nanotubes grafted polylactic acid and its composites with enhanced interfacial compatibility

Abstract

Keywords

ASJC Scopus subject areas

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