Effects of latex type and processed-mica waste loading on the structural and thermo-physical properties of natural rubber latex foam composites
Mica waste, a type of commercial waste produced in bulk quantities by the mica mining industry, was processed and added to Natural Rubber Latex Foams (NRLF) made of centrifuged and creamed latex. Following the Dunlop method, NRLF composites with various Processed Mica Waste (PMW) loadings (0, 2, 4,...
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| Format: | Article |
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KeAi Communications Co., Ltd.
2024-05-01
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| Series: | International Journal of Lightweight Materials and Manufacture |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2588840423000720 |
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| author | Vimukthi Dananjaya Yashoda Somarathna Susantha Siriwardena Narayana Sirimuthu Laleen Karunanayake Chamil Abeykoon |
| author_facet | Vimukthi Dananjaya Yashoda Somarathna Susantha Siriwardena Narayana Sirimuthu Laleen Karunanayake Chamil Abeykoon |
| author_sort | Vimukthi Dananjaya |
| collection | DOAJ |
| description | Mica waste, a type of commercial waste produced in bulk quantities by the mica mining industry, was processed and added to Natural Rubber Latex Foams (NRLF) made of centrifuged and creamed latex. Following the Dunlop method, NRLF composites with various Processed Mica Waste (PMW) loadings (0, 2, 4, 6, 8, and 10 Phr) were prepared, and the thermo-physical characteristics were compared. Thermal conductivity, electrical resistivity of NRLF against the latex type and mica loading were compared for the first time. NRLFs prepared using creamed latex exhibit 33 and 50 μm (width and height) cell diameter, 3 ibf hardness, 281 % swelling index improvements and 0.05 Wm−1K−1 thermal conductivity, and 1 °C glass transition temperature (Tg) reductions than centrifuged NRLF and indistinguishable electrical resistivity. With the addition of mica (0–10 Phr), both NRLF types showed a similar ascending trend in hardness (42 ibf), water absorption (16 %), Tg (7 °C), thermal conductivity (0.54 Wm−1K−1), electrical resistivity (69 × 103 Ω m) with decreasing gel time (3 min) and swelling index (550 %). The key objective of this research was to prepare PMW-filled NRLF and compare structural, electrical and thermo-physical properties, for the first time, against mica content and latex type. |
| first_indexed | 2024-04-25T00:03:22Z |
| format | Article |
| id | doaj.art-1baa50a7d75247a0802f7881708a101e |
| institution | Directory Open Access Journal |
| issn | 2588-8404 |
| language | English |
| last_indexed | 2024-04-25T00:03:22Z |
| publishDate | 2024-05-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | International Journal of Lightweight Materials and Manufacture |
| spelling | doaj.art-1baa50a7d75247a0802f7881708a101e2024-03-14T06:15:48ZengKeAi Communications Co., Ltd.International Journal of Lightweight Materials and Manufacture2588-84042024-05-0173450466Effects of latex type and processed-mica waste loading on the structural and thermo-physical properties of natural rubber latex foam compositesVimukthi Dananjaya0Yashoda Somarathna1Susantha Siriwardena2Narayana Sirimuthu3Laleen Karunanayake4Chamil Abeykoon5Department of Materials Science and Engineering, Faculty of Engineering, University of Moratuwa, Moratuwa, Sri Lanka; Center of Nanocomposite Research, Faculty of Applied Science, University of Sri Jayewardenepura, Nugegoda, Sri LankaRubber Research Institute, Telawala Road, Rathmalana, Sri Lanka; Centre for Future Materials, University of Southern Queensland, Toowoomba, AustraliaRubber Research Institute, Telawala Road, Rathmalana, Sri LankaCenter of Nanocomposite Research, Faculty of Applied Science, University of Sri Jayewardenepura, Nugegoda, Sri LankaCenter of Nanocomposite Research, Faculty of Applied Science, University of Sri Jayewardenepura, Nugegoda, Sri LankaNorthwest Composites Centre, Department of Materials, Faculty of Science and Engineering, University of Manchester, United Kingdom; Corresponding author.Mica waste, a type of commercial waste produced in bulk quantities by the mica mining industry, was processed and added to Natural Rubber Latex Foams (NRLF) made of centrifuged and creamed latex. Following the Dunlop method, NRLF composites with various Processed Mica Waste (PMW) loadings (0, 2, 4, 6, 8, and 10 Phr) were prepared, and the thermo-physical characteristics were compared. Thermal conductivity, electrical resistivity of NRLF against the latex type and mica loading were compared for the first time. NRLFs prepared using creamed latex exhibit 33 and 50 μm (width and height) cell diameter, 3 ibf hardness, 281 % swelling index improvements and 0.05 Wm−1K−1 thermal conductivity, and 1 °C glass transition temperature (Tg) reductions than centrifuged NRLF and indistinguishable electrical resistivity. With the addition of mica (0–10 Phr), both NRLF types showed a similar ascending trend in hardness (42 ibf), water absorption (16 %), Tg (7 °C), thermal conductivity (0.54 Wm−1K−1), electrical resistivity (69 × 103 Ω m) with decreasing gel time (3 min) and swelling index (550 %). The key objective of this research was to prepare PMW-filled NRLF and compare structural, electrical and thermo-physical properties, for the first time, against mica content and latex type.http://www.sciencedirect.com/science/article/pii/S2588840423000720Mica wasteCentrifuged latex and creamed latexNatural rubber foam compositesSwelling indexThermal conductivityElectrical resistivity |
| spellingShingle | Vimukthi Dananjaya Yashoda Somarathna Susantha Siriwardena Narayana Sirimuthu Laleen Karunanayake Chamil Abeykoon Effects of latex type and processed-mica waste loading on the structural and thermo-physical properties of natural rubber latex foam composites International Journal of Lightweight Materials and Manufacture Mica waste Centrifuged latex and creamed latex Natural rubber foam composites Swelling index Thermal conductivity Electrical resistivity |
| title | Effects of latex type and processed-mica waste loading on the structural and thermo-physical properties of natural rubber latex foam composites |
| title_full | Effects of latex type and processed-mica waste loading on the structural and thermo-physical properties of natural rubber latex foam composites |
| title_fullStr | Effects of latex type and processed-mica waste loading on the structural and thermo-physical properties of natural rubber latex foam composites |
| title_full_unstemmed | Effects of latex type and processed-mica waste loading on the structural and thermo-physical properties of natural rubber latex foam composites |
| title_short | Effects of latex type and processed-mica waste loading on the structural and thermo-physical properties of natural rubber latex foam composites |
| title_sort | effects of latex type and processed mica waste loading on the structural and thermo physical properties of natural rubber latex foam composites |
| topic | Mica waste Centrifuged latex and creamed latex Natural rubber foam composites Swelling index Thermal conductivity Electrical resistivity |
| url | http://www.sciencedirect.com/science/article/pii/S2588840423000720 |
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