Staff View: Friction measurement of modified PDMS surfaces inspired by Malayopython Reticulatus

Friction measurement of modified PDMS surfaces inspired by Malayopython Reticulatus

The lack of limbs on snakes enables its ventral scales to be in almost constant contact with the substrate. Their skin is presumably adapted to generate high and low friction to slither. This frictional characteristics in snakes were hypothesized to be contributed by the be tooth-shaped or denticle-...

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Main Authors:	Mohd Danial, Ibrahim, Alyssa Asong, Ananthan, Dayang Salyani, Abang Mahmod, Sunami, Yuta, Barroy, Pierre, Chin, Christie Pei Yee, Syah Runniza, Ahmad Bakri
Format:	Article
Language:	English
Published:	2023
Subjects:	T Technology (General) TJ Mechanical engineering and machinery
Online Access:	http://ir.unimas.my/id/eprint/41781/1/Friction%20measurement%20of%20modified%20PDMS.pdf http://ir.unimas.my/id/eprint/41781/ https://www.sciencedirect.com/science/article/abs/pii/S2352573823000070?via%3Dihub https://doi.org/10.1016/j.biotri.2023.100240
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id	my.unimas.ir.41781
record_format	eprints
spelling	my.unimas.ir.417812023-05-08T07:00:00Z http://ir.unimas.my/id/eprint/41781/ Friction measurement of modified PDMS surfaces inspired by Malayopython Reticulatus Mohd Danial, Ibrahim Alyssa Asong, Ananthan Dayang Salyani, Abang Mahmod Sunami, Yuta Barroy, Pierre Chin, Christie Pei Yee Syah Runniza, Ahmad Bakri T Technology (General) TJ Mechanical engineering and machinery The lack of limbs on snakes enables its ventral scales to be in almost constant contact with the substrate. Their skin is presumably adapted to generate high and low friction to slither. This frictional characteristics in snakes were hypothesized to be contributed by the be tooth-shaped or denticle-like microstructures found on the snake ventral scales. The frictional properties of the microstructures found on snake ventral scales was studied and its feasibility as an inspiration for surface modifications was observed. This study was carried out to analyze the frictional anisotropy exhibit by the snake ventral scale microstructures and also how it changes the frictional properties of the PDMS surface when the microstructures are replicated on to it. The PDMS embedded-elastomeric stamping method was used in this experiment to replicate the snake ventral scales onto the PDMS. Based on the data collected the microstructures on the snake ventral scales does exhibit frictional anisotropy. The PDMS with replicated snakeskin microstructures displays higher COF compared to PDMS with smooth surface. When sliding on most types of surfaces, the COF of real snakeskin and replicated snakeskin is higher if the surface is semi wet. Whereas for smooth PDMS the COF is lower when the surfaces are semi wet. Generally, from both experiments, when the replicated snakeskin is sliding on the surface in the lateral direction, it is observed that the COF is the lowest followed by the caudal then the rostral direction. 2023-04-18 Article PeerReviewed text en http://ir.unimas.my/id/eprint/41781/1/Friction%20measurement%20of%20modified%20PDMS.pdf Mohd Danial, Ibrahim and Alyssa Asong, Ananthan and Dayang Salyani, Abang Mahmod and Sunami, Yuta and Barroy, Pierre and Chin, Christie Pei Yee and Syah Runniza, Ahmad Bakri (2023) Friction measurement of modified PDMS surfaces inspired by Malayopython Reticulatus. Biotribology. ISSN 2352-5738 (In Press) https://www.sciencedirect.com/science/article/abs/pii/S2352573823000070?via%3Dihub https://doi.org/10.1016/j.biotri.2023.100240
institution	Universiti Malaysia Sarawak
building	Centre for Academic Information Services (CAIS)
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Malaysia Sarawak
content_source	UNIMAS Institutional Repository
url_provider	http://ir.unimas.my/
language	English
topic	T Technology (General) TJ Mechanical engineering and machinery
spellingShingle	T Technology (General) TJ Mechanical engineering and machinery Mohd Danial, Ibrahim Alyssa Asong, Ananthan Dayang Salyani, Abang Mahmod Sunami, Yuta Barroy, Pierre Chin, Christie Pei Yee Syah Runniza, Ahmad Bakri Friction measurement of modified PDMS surfaces inspired by Malayopython Reticulatus
description	The lack of limbs on snakes enables its ventral scales to be in almost constant contact with the substrate. Their skin is presumably adapted to generate high and low friction to slither. This frictional characteristics in snakes were hypothesized to be contributed by the be tooth-shaped or denticle-like microstructures found on the snake ventral scales. The frictional properties of the microstructures found on snake ventral scales was studied and its feasibility as an inspiration for surface modifications was observed. This study was carried out to analyze the frictional anisotropy exhibit by the snake ventral scale microstructures and also how it changes the frictional properties of the PDMS surface when the microstructures are replicated on to it. The PDMS embedded-elastomeric stamping method was used in this experiment to replicate the snake ventral scales onto the PDMS. Based on the data collected the microstructures on the snake ventral scales does exhibit frictional anisotropy. The PDMS with replicated snakeskin microstructures displays higher COF compared to PDMS with smooth surface. When sliding on most types of surfaces, the COF of real snakeskin and replicated snakeskin is higher if the surface is semi wet. Whereas for smooth PDMS the COF is lower when the surfaces are semi wet. Generally, from both experiments, when the replicated snakeskin is sliding on the surface in the lateral direction, it is observed that the COF is the lowest followed by the caudal then the rostral direction.
format	Article
author	Mohd Danial, Ibrahim Alyssa Asong, Ananthan Dayang Salyani, Abang Mahmod Sunami, Yuta Barroy, Pierre Chin, Christie Pei Yee Syah Runniza, Ahmad Bakri
author_facet	Mohd Danial, Ibrahim Alyssa Asong, Ananthan Dayang Salyani, Abang Mahmod Sunami, Yuta Barroy, Pierre Chin, Christie Pei Yee Syah Runniza, Ahmad Bakri
author_sort	Mohd Danial, Ibrahim
title	Friction measurement of modified PDMS surfaces inspired by Malayopython Reticulatus
title_short	Friction measurement of modified PDMS surfaces inspired by Malayopython Reticulatus
title_full	Friction measurement of modified PDMS surfaces inspired by Malayopython Reticulatus
title_fullStr	Friction measurement of modified PDMS surfaces inspired by Malayopython Reticulatus
title_full_unstemmed	Friction measurement of modified PDMS surfaces inspired by Malayopython Reticulatus
title_sort	friction measurement of modified pdms surfaces inspired by malayopython reticulatus
publishDate	2023
url	http://ir.unimas.my/id/eprint/41781/1/Friction%20measurement%20of%20modified%20PDMS.pdf http://ir.unimas.my/id/eprint/41781/ https://www.sciencedirect.com/science/article/abs/pii/S2352573823000070?via%3Dihub https://doi.org/10.1016/j.biotri.2023.100240
_version_	1767209872651190272
score	13.211869

Friction measurement of modified PDMS surfaces inspired by Malayopython Reticulatus

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