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Development New Organic Composite Materials with Excellent Long-Term High-Temperature Durability and Reliability for Automotive Parts
Technical Paper
2018-01-0151
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
In recent years, the emerging technology competitions in automotive industry are improving engine efficiency and electronizing for coping with stringent fuel-economy regulations. However, fuel-economy technologies such as engine down-sizing and numerous electronic parts entrust burden plastic materials acing as mainly electric insulation and housing to have to be higher performance, especially temperature endurance. Engineering plastics (EPs) have critical limitations in terms of degradation by heat. Heat-resisting additives in EP are generally used to be anti-degradation as activating non-radical decomposition of peroxide. However, it could not be effective way to impede the degradation in long term heat aging over 1,000 hours at high temperature above 180 °C. In this study, we suggested the new solution called ‘shield effect’ that is purposeful oxidation at the surface and local crystallization of EP to stop prevent penetrating oxygen to inside of that. Ethylene diamine tetra acetic acid (EDTA) and Citric acid (CA) are used as additives for surface oxidation. We added the EDTA and CA to Nylon co-polymer of PA6T/6I-PA66 and made test specimens. Surprisingly, physical properties maintained 5% under degradation rate at 250 °C, over 1,000 hours in contrast with Nylon added general additives. We confirmed surface oxidation and local crystallization of the Nylon by using Energy Dispersive X-ray Spectroscopy (EDX) and X-ray Diffraction Spectroscopy (XRD). Base on this result, we adopt the new materials to high temperature needed automotive parts in engine such as Battery Fuse Terminal (BFT) and Multi Fuse Terminal (MFT), in exhaust system such as Muffler.
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Kweon, K. and Kim, S., "Development New Organic Composite Materials with Excellent Long-Term High-Temperature Durability and Reliability for Automotive Parts," SAE Technical Paper 2018-01-0151, 2018, https://doi.org/10.4271/2018-01-0151.Data Sets - Support Documents
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References
- Kasab J.J. and Jackson , N. Greenhouse Gas Reduction Potential ICCT International Workshop Brussels 2012
- Rouilloux , G. and Znojek , B. 2012
- Ballistrero , A. , Garozzo , D. , Giuffrida , M. , and Motaudo , G. Mechanism of Thermal Decomposition of Nylon 66 Macromolecules 20 12 2991 2997 1987 10.1021/ma00178a007
- Do , C.H. , Pearce , E.M. , Bulkin , B.J. , and Reimschuessel , H.K. FT-IR Spectroscopic Study on the Thermal and Thermal Oxidative Degradation of Nylons Journal of Polymer 25 2409 2424 1987 10.1002/pola.1987.080250908
- Levchik , S.V. , Levchik , G.F. , Balabanovich , A.I. , and Camino , G. Mechanistic Study of Combustion Performance and Thermal Decomposition Behavior of Nylon 6 with Added Halogen-Free Fire Retardants Polymer Degradation and Stability 54 217 222 1996 10.1016/S0141-3910(96)00046-8
- Jha , A. and Bhowmick , A.K. Thermal Degradation and Ageing Behavior of Novel Thermoplastic Elastomeric Nylon 6/Acrylate Rubber Reactive Blends Polymer Degradation and Stability 62 575 586 1998 10.1016/S0141-3910(98)00044-5
- Qin , H. , Su , Q. , Zhang , S. , Zhao , B. et al. Thermal Stability and Flammability of Polyamide 66/Montmorillonite Nanocomposites Polymer 44 7533 7538 2003 10.1016/j.polymer.2003.09.014
- Jang , B.N. and Wilkie , C.A. The Effect of Clay on the Thermal Degradation of Polyamide 6 in Polyamide 6/Clay Nanocomposites Polymer 46 3264 3274 2005 10.1016/j.polymer.2005.02.078