Enhanced thermal and mechanical properties by cost-effective carboxylated nanodiamonds in poly (vinyl alcohol)

In this study, the high-energy ball-milled nanodiamonds (MNDs) are carefully treated with low-temperature annealing and mixed acids to obtain carboxylated MNDs (cMNDs). This process not only removes impurities but also grafts oxygen containing functional groups onto MNDs surfaces. Then poly (vinyl a...

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Autores principales:	Yuansai Zhang, Qingsong Hua, Jian Min Zhang, Yuling Zhao, Hang Yin, Zuoqiang Dai, Lili Zheng, Jie Tang
Formato:	article
Lenguaje:	EN
Publicado:	Taylor & Francis Group 2018
Materias:	nanodiamond carboxylation film casting composites thermal properties mechanical properties morphology crystallization Materials of engineering and construction. Mechanics of materials TA401-492 Polymers and polymer manufacture TP1080-1185
Acceso en línea:	https://doaj.org/article/d9401dc48af247ceb67e36bcb1bdd494
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id	oai:doaj.org-article:d9401dc48af247ceb67e36bcb1bdd494
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spelling	oai:doaj.org-article:d9401dc48af247ceb67e36bcb1bdd4942021-12-02T02:34:19ZEnhanced thermal and mechanical properties by cost-effective carboxylated nanodiamonds in poly (vinyl alcohol)2055-03242055-033210.1080/20550324.2018.1493971https://doaj.org/article/d9401dc48af247ceb67e36bcb1bdd4942018-04-01T00:00:00Zhttp://dx.doi.org/10.1080/20550324.2018.1493971https://doaj.org/toc/2055-0324https://doaj.org/toc/2055-0332In this study, the high-energy ball-milled nanodiamonds (MNDs) are carefully treated with low-temperature annealing and mixed acids to obtain carboxylated MNDs (cMNDs). This process not only removes impurities but also grafts oxygen containing functional groups onto MNDs surfaces. Then poly (vinyl alcohol) (PVA)/cMND nanocomposites are prepared by a facile aqueous solution casting method. Compared with PVA/MND, an improved dispersion of nanoparticles in the matrix and higher nanoparticles content can be achieved by PVA/cMND. It is found that glass transition temperature (Tg) and loss factor peak temperature (Ttanδ) of PVA/cMND nanocomposites are both shifted to higher values than pure PVA. Thermal decomposition of PVA is obviously suppressed by cMNDs. The onset and maximum decomposition temperatures increases by over 17 °C and 24 °C, respectively. The thermal conductivity increases by 57.5%. Furthermore, tensile strength and Young’s modulus of PVA are improved by 62.3% and 166.7% with the addition of cMNDs.Yuansai ZhangQingsong HuaJian Min ZhangYuling ZhaoHang YinZuoqiang DaiLili ZhengJie TangTaylor & Francis Grouparticlenanodiamondcarboxylationfilm castingcompositesthermal propertiesmechanical propertiesmorphologycrystallizationMaterials of engineering and construction. Mechanics of materialsTA401-492Polymers and polymer manufactureTP1080-1185ENNanocomposites, Vol 4, Iss 2, Pp 58-67 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	nanodiamond carboxylation film casting composites thermal properties mechanical properties morphology crystallization Materials of engineering and construction. Mechanics of materials TA401-492 Polymers and polymer manufacture TP1080-1185
spellingShingle	nanodiamond carboxylation film casting composites thermal properties mechanical properties morphology crystallization Materials of engineering and construction. Mechanics of materials TA401-492 Polymers and polymer manufacture TP1080-1185 Yuansai Zhang Qingsong Hua Jian Min Zhang Yuling Zhao Hang Yin Zuoqiang Dai Lili Zheng Jie Tang Enhanced thermal and mechanical properties by cost-effective carboxylated nanodiamonds in poly (vinyl alcohol)
description	In this study, the high-energy ball-milled nanodiamonds (MNDs) are carefully treated with low-temperature annealing and mixed acids to obtain carboxylated MNDs (cMNDs). This process not only removes impurities but also grafts oxygen containing functional groups onto MNDs surfaces. Then poly (vinyl alcohol) (PVA)/cMND nanocomposites are prepared by a facile aqueous solution casting method. Compared with PVA/MND, an improved dispersion of nanoparticles in the matrix and higher nanoparticles content can be achieved by PVA/cMND. It is found that glass transition temperature (Tg) and loss factor peak temperature (Ttanδ) of PVA/cMND nanocomposites are both shifted to higher values than pure PVA. Thermal decomposition of PVA is obviously suppressed by cMNDs. The onset and maximum decomposition temperatures increases by over 17 °C and 24 °C, respectively. The thermal conductivity increases by 57.5%. Furthermore, tensile strength and Young’s modulus of PVA are improved by 62.3% and 166.7% with the addition of cMNDs.
format	article
author	Yuansai Zhang Qingsong Hua Jian Min Zhang Yuling Zhao Hang Yin Zuoqiang Dai Lili Zheng Jie Tang
author_facet	Yuansai Zhang Qingsong Hua Jian Min Zhang Yuling Zhao Hang Yin Zuoqiang Dai Lili Zheng Jie Tang
author_sort	Yuansai Zhang
title	Enhanced thermal and mechanical properties by cost-effective carboxylated nanodiamonds in poly (vinyl alcohol)
title_short	Enhanced thermal and mechanical properties by cost-effective carboxylated nanodiamonds in poly (vinyl alcohol)
title_full	Enhanced thermal and mechanical properties by cost-effective carboxylated nanodiamonds in poly (vinyl alcohol)
title_fullStr	Enhanced thermal and mechanical properties by cost-effective carboxylated nanodiamonds in poly (vinyl alcohol)
title_full_unstemmed	Enhanced thermal and mechanical properties by cost-effective carboxylated nanodiamonds in poly (vinyl alcohol)
title_sort	enhanced thermal and mechanical properties by cost-effective carboxylated nanodiamonds in poly (vinyl alcohol)
publisher	Taylor & Francis Group
publishDate	2018
url	https://doaj.org/article/d9401dc48af247ceb67e36bcb1bdd494
work_keys_str_mv	AT yuansaizhang enhancedthermalandmechanicalpropertiesbycosteffectivecarboxylatednanodiamondsinpolyvinylalcohol AT qingsonghua enhancedthermalandmechanicalpropertiesbycosteffectivecarboxylatednanodiamondsinpolyvinylalcohol AT jianminzhang enhancedthermalandmechanicalpropertiesbycosteffectivecarboxylatednanodiamondsinpolyvinylalcohol AT yulingzhao enhancedthermalandmechanicalpropertiesbycosteffectivecarboxylatednanodiamondsinpolyvinylalcohol AT hangyin enhancedthermalandmechanicalpropertiesbycosteffectivecarboxylatednanodiamondsinpolyvinylalcohol AT zuoqiangdai enhancedthermalandmechanicalpropertiesbycosteffectivecarboxylatednanodiamondsinpolyvinylalcohol AT lilizheng enhancedthermalandmechanicalpropertiesbycosteffectivecarboxylatednanodiamondsinpolyvinylalcohol AT jietang enhancedthermalandmechanicalpropertiesbycosteffectivecarboxylatednanodiamondsinpolyvinylalcohol
_version_	1718402379683987456

Enhanced thermal and mechanical properties by cost-effective carboxylated nanodiamonds in poly (vinyl alcohol)

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