Performance, interfacial compatibility testing and rheonaut technology analysis for simultaneous rheology and FTIR of poly(lactic acid)/modified saponite nanocomposites
The modified saponite (SASAP) was prepared with 3-aminopropyl triethoxysilane, stearic acid, 1-(3-Dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride, 1-hydroxybenzotriazole and triethylamine. The structure of SASAP was characterized by Fourier transform infrared spectroscopy, X-ray photoelectron...
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| Format: | Article |
| Language: | English |
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Elsevier
2021-08-01
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| Series: | Polymer Testing |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S0142941821001823 |
| _version_ | 1818619721649487872 |
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| author | Dinghui Chen Weijun Zhen |
| author_facet | Dinghui Chen Weijun Zhen |
| author_sort | Dinghui Chen |
| collection | DOAJ |
| description | The modified saponite (SASAP) was prepared with 3-aminopropyl triethoxysilane, stearic acid, 1-(3-Dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride, 1-hydroxybenzotriazole and triethylamine. The structure of SASAP was characterized by Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, transmission electron microscopy and static contact angle, which confirmed that SASAP had been successfully prepared. To improve the crystallization rate of poly (lactic acid) (PLA), PLA/SASAP nanocomposites was melt intercalation with SASAP as fillers. The mechanical properties showed that the elongation at break of PLA/SASAP nanocomposites was increased from 9.8% of PLA0 to 45.5%, its impact strength was increased from 9.1 kJ/m2 to 13.5 kJ/m2, and its tensile strength was increased from 23.25 MPa to 28.79 MPa. The interface tension testing demonstrated that the interface tension of PLA/SASAP nanocomposites decreased to 0.24 ( mN·m−1), which was due to the fact that amide groups of SASAP formed stronger intermolecular interactions with the PLA chains. Moreover, rotation rheology demonstrated that the interface compatibility of PLA/SASAP nanocomposites was significantly improved. Rheonaut technology analysis for simultaneous rheology and FTIR investigated the isothermal crystallization and chemical structure of PLA/SASAP nanocomposites, which indicated that SASAP accelerated the crystallization rate of PLA. |
| first_indexed | 2024-12-16T17:41:59Z |
| format | Article |
| id | doaj.art-47d111621c3b45b981e128e3b61e26c1 |
| institution | Directory Open Access Journal |
| issn | 0142-9418 |
| language | English |
| last_indexed | 2024-12-16T17:41:59Z |
| publishDate | 2021-08-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Polymer Testing |
| spelling | doaj.art-47d111621c3b45b981e128e3b61e26c12022-12-21T22:22:34ZengElsevierPolymer Testing0142-94182021-08-01100107232Performance, interfacial compatibility testing and rheonaut technology analysis for simultaneous rheology and FTIR of poly(lactic acid)/modified saponite nanocompositesDinghui Chen0Weijun Zhen1Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education and Xinjiang Uygur Autonomous Region, School of Chemical Engineering and Technology, Xinjiang University, Urumqi, 830046, ChinaCorresponding author.; Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education and Xinjiang Uygur Autonomous Region, School of Chemical Engineering and Technology, Xinjiang University, Urumqi, 830046, ChinaThe modified saponite (SASAP) was prepared with 3-aminopropyl triethoxysilane, stearic acid, 1-(3-Dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride, 1-hydroxybenzotriazole and triethylamine. The structure of SASAP was characterized by Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, transmission electron microscopy and static contact angle, which confirmed that SASAP had been successfully prepared. To improve the crystallization rate of poly (lactic acid) (PLA), PLA/SASAP nanocomposites was melt intercalation with SASAP as fillers. The mechanical properties showed that the elongation at break of PLA/SASAP nanocomposites was increased from 9.8% of PLA0 to 45.5%, its impact strength was increased from 9.1 kJ/m2 to 13.5 kJ/m2, and its tensile strength was increased from 23.25 MPa to 28.79 MPa. The interface tension testing demonstrated that the interface tension of PLA/SASAP nanocomposites decreased to 0.24 ( mN·m−1), which was due to the fact that amide groups of SASAP formed stronger intermolecular interactions with the PLA chains. Moreover, rotation rheology demonstrated that the interface compatibility of PLA/SASAP nanocomposites was significantly improved. Rheonaut technology analysis for simultaneous rheology and FTIR investigated the isothermal crystallization and chemical structure of PLA/SASAP nanocomposites, which indicated that SASAP accelerated the crystallization rate of PLA.http://www.sciencedirect.com/science/article/pii/S0142941821001823Poly(lactic acid)SaponitePerformanceInterfacial compatibilityRheonaut technology analysis for simultaneous rheology and FTIR |
| spellingShingle | Dinghui Chen Weijun Zhen Performance, interfacial compatibility testing and rheonaut technology analysis for simultaneous rheology and FTIR of poly(lactic acid)/modified saponite nanocomposites Polymer Testing Poly(lactic acid) Saponite Performance Interfacial compatibility Rheonaut technology analysis for simultaneous rheology and FTIR |
| title | Performance, interfacial compatibility testing and rheonaut technology analysis for simultaneous rheology and FTIR of poly(lactic acid)/modified saponite nanocomposites |
| title_full | Performance, interfacial compatibility testing and rheonaut technology analysis for simultaneous rheology and FTIR of poly(lactic acid)/modified saponite nanocomposites |
| title_fullStr | Performance, interfacial compatibility testing and rheonaut technology analysis for simultaneous rheology and FTIR of poly(lactic acid)/modified saponite nanocomposites |
| title_full_unstemmed | Performance, interfacial compatibility testing and rheonaut technology analysis for simultaneous rheology and FTIR of poly(lactic acid)/modified saponite nanocomposites |
| title_short | Performance, interfacial compatibility testing and rheonaut technology analysis for simultaneous rheology and FTIR of poly(lactic acid)/modified saponite nanocomposites |
| title_sort | performance interfacial compatibility testing and rheonaut technology analysis for simultaneous rheology and ftir of poly lactic acid modified saponite nanocomposites |
| topic | Poly(lactic acid) Saponite Performance Interfacial compatibility Rheonaut technology analysis for simultaneous rheology and FTIR |
| url | http://www.sciencedirect.com/science/article/pii/S0142941821001823 |
| work_keys_str_mv | AT dinghuichen performanceinterfacialcompatibilitytestingandrheonauttechnologyanalysisforsimultaneousrheologyandftirofpolylacticacidmodifiedsaponitenanocomposites AT weijunzhen performanceinterfacialcompatibilitytestingandrheonauttechnologyanalysisforsimultaneousrheologyandftirofpolylacticacidmodifiedsaponitenanocomposites |