A. Azmi;K. Y. Lau;N. A. Ahmad;Z. Abdul-Malek;C. W. Tan;K. Y. Ching;A. S. Vaughan
{"title":"热老化聚丙烯纳米复合材料的介电性能","authors":"A. Azmi;K. Y. Lau;N. A. Ahmad;Z. Abdul-Malek;C. W. Tan;K. Y. Ching;A. S. Vaughan","doi":"10.1109/TDEI.2022.3163796","DOIUrl":null,"url":null,"abstract":"This article reports on an investigation into the effects of thermal aging on the structure and dielectric properties of polypropylene (PP) nanocomposites. Magnesium aluminate (MgAl\n<sub>2</sub>\nO\n<sub>4</sub>\n), calcium carbonate (CaCO\n<sub>3</sub>\n), and surface-modified calcium carbonate (CaCO\n<sub>3</sub>\nT) nanofillers have been added to PP and the resulting nanocomposites have been subjected to aging at 110 °C and 140 °C. The results show that unfilled PP experiences a 13% reduction in its dc breakdown strength after aging at 110 °C and that its dc breakdown strength reduces by 27% after aging at 140 °C. In contrast, the reduction in the dc breakdown strength of all investigated PP nanocomposites is much less pronounced than that of the unfilled PP after aging. Specifically, the dc breakdown strength of PP/MgAl\n<sub>2</sub>\nO\n<sub>4</sub>\n nanocomposites, PP/CaCO\n<sub>3</sub>\n nanocomposites, and PP/CaCO\n<sub>3</sub>\nT nanocomposites reduces by 8%, 14%, and 14%, respectively, after aging at 140 °C. Possible mechanisms affecting the dc breakdown strength of the unfilled PP and PP nanocomposites before and after aging are consequently discussed.","PeriodicalId":2,"journal":{"name":"ACS Applied Bio Materials","volume":null,"pages":null},"PeriodicalIF":4.6000,"publicationDate":"2022-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":"{\"title\":\"Dielectric Properties of Thermally Aged Polypropylene Nanocomposites\",\"authors\":\"A. Azmi;K. Y. Lau;N. A. Ahmad;Z. Abdul-Malek;C. W. Tan;K. Y. Ching;A. S. Vaughan\",\"doi\":\"10.1109/TDEI.2022.3163796\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"This article reports on an investigation into the effects of thermal aging on the structure and dielectric properties of polypropylene (PP) nanocomposites. Magnesium aluminate (MgAl\\n<sub>2</sub>\\nO\\n<sub>4</sub>\\n), calcium carbonate (CaCO\\n<sub>3</sub>\\n), and surface-modified calcium carbonate (CaCO\\n<sub>3</sub>\\nT) nanofillers have been added to PP and the resulting nanocomposites have been subjected to aging at 110 °C and 140 °C. The results show that unfilled PP experiences a 13% reduction in its dc breakdown strength after aging at 110 °C and that its dc breakdown strength reduces by 27% after aging at 140 °C. In contrast, the reduction in the dc breakdown strength of all investigated PP nanocomposites is much less pronounced than that of the unfilled PP after aging. Specifically, the dc breakdown strength of PP/MgAl\\n<sub>2</sub>\\nO\\n<sub>4</sub>\\n nanocomposites, PP/CaCO\\n<sub>3</sub>\\n nanocomposites, and PP/CaCO\\n<sub>3</sub>\\nT nanocomposites reduces by 8%, 14%, and 14%, respectively, after aging at 140 °C. Possible mechanisms affecting the dc breakdown strength of the unfilled PP and PP nanocomposites before and after aging are consequently discussed.\",\"PeriodicalId\":2,\"journal\":{\"name\":\"ACS Applied Bio Materials\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":4.6000,\"publicationDate\":\"2022-03-31\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"2\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"ACS Applied Bio Materials\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://ieeexplore.ieee.org/document/9745522/\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"MATERIALS SCIENCE, BIOMATERIALS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"ACS Applied Bio Materials","FirstCategoryId":"5","ListUrlMain":"https://ieeexplore.ieee.org/document/9745522/","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, BIOMATERIALS","Score":null,"Total":0}
Dielectric Properties of Thermally Aged Polypropylene Nanocomposites
This article reports on an investigation into the effects of thermal aging on the structure and dielectric properties of polypropylene (PP) nanocomposites. Magnesium aluminate (MgAl
2
O
4
), calcium carbonate (CaCO
3
), and surface-modified calcium carbonate (CaCO
3
T) nanofillers have been added to PP and the resulting nanocomposites have been subjected to aging at 110 °C and 140 °C. The results show that unfilled PP experiences a 13% reduction in its dc breakdown strength after aging at 110 °C and that its dc breakdown strength reduces by 27% after aging at 140 °C. In contrast, the reduction in the dc breakdown strength of all investigated PP nanocomposites is much less pronounced than that of the unfilled PP after aging. Specifically, the dc breakdown strength of PP/MgAl
2
O
4
nanocomposites, PP/CaCO
3
nanocomposites, and PP/CaCO
3
T nanocomposites reduces by 8%, 14%, and 14%, respectively, after aging at 140 °C. Possible mechanisms affecting the dc breakdown strength of the unfilled PP and PP nanocomposites before and after aging are consequently discussed.
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