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240621s2024 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.4c01435
|2 doi
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|a pubmed24n1458.xml
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|a DE-627
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|a eng
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|a Qi, Jiajia
|e verfasserin
|4 aut
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|a Remarkable Toughening of Plastic with Monodispersed Nano-CaCO3
|b From Theoretical Predictions to Experimental Validation
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|c 2024
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Revised 02.07.2024
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a The structure-property relationship of poly(vinyl chloride) (PVC)/CaCO3 nanocomposites is investigated by all-atom molecular dynamics (MD) simulations. MD simulation results indicate that the dispersity of nanofillers, interfacial bonding, and chain mobility are imperative factors to improve the mechanical performance of nanocomposites, especially toughness. The tensile behavior and dissipated work of the PVC/CaCO3 model demonstrate that 12 wt % CaCO3 modified with oleate anion and dodecylbenzenesulfonate can impart high toughness to PVC due to its good dispersion, favorable interface interaction, and weak migration of PVC chains. Under the guidance of MD simulation, we experimentally prepared a transparent PVC/CaCO3 nanocomposite with good mechanical properties by in situ polymerization of monodispersed CaCO3 in vinyl chloride monomers. Interestingly, experimental tests indicate that the optimum toughness of a nanocomposite (a 368% increase in the elongation at break and 204% improvement of the impact strength) can be indeed realized by adding 12 wt % CaCO3 modified with oleic acid and dodecylbenzenesulfonic acid, which is remarkably consistent with the MD simulation prediction. In short, this work provides a proof-of-concept of using MD simulation to guide the experimental synthesis of PVC/CaCO3 nanocomposites, which can be considered as an example to develop other functional nanocomposites
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|a Journal Article
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|a Shao, Zhengxuan
|e verfasserin
|4 aut
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|a Sun, Yujun
|e verfasserin
|4 aut
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|a Wang, Zhirong
|e verfasserin
|4 aut
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|a Chen, Qionghai
|e verfasserin
|4 aut
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|a Wang, Jiexin
|e verfasserin
|4 aut
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|a Huang, Dong
|e verfasserin
|4 aut
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|a Liu, Jun
|e verfasserin
|4 aut
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|a Shen, Jianxiang
|e verfasserin
|4 aut
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|a Cao, Dapeng
|e verfasserin
|4 aut
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|a Zeng, Xiaofei
|e verfasserin
|4 aut
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| 700 |
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|a Chen, Jianfeng
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 40(2024), 26 vom: 02. Juli, Seite 13688-13698
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
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|g volume:40
|g year:2024
|g number:26
|g day:02
|g month:07
|g pages:13688-13698
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|u http://dx.doi.org/10.1021/acs.langmuir.4c01435
|3 Volltext
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