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다양한 조건에서의 PDMS의 마찰 특성에 대한 연구

A Study on Frictional Characteristics of PDMS Under Various Conditions

Journal of the Korean Society for Precision Engineering 2018;35(8):803-807.
Published online: August 1, 2018

1 연세대학교 대학원 기계공학과

2 연세대학교 기계공학부

1 Department of Mechanical Engineering, Graduate School, Yonsei University

2 School of Mechanical Engineering, Yonsei University

#E-mail: kimde@yonsei.ac.kr, TEL: +82-2-2123-2822
• Received: November 6, 2017   • Revised: May 16, 2018   • Accepted: May 24, 2018

Copyright © The Korean Society for Precision Engineering

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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A Study on Frictional Characteristics of PDMS Under Various Conditions
J. Korean Soc. Precis. Eng.. 2018;35(8):803-807.   Published online August 1, 2018
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A Study on Frictional Characteristics of PDMS Under Various Conditions
Image Image Image Image Image Image Image
Fig. 1 Rigid spherical type indenter
Fig. 2 Reciprocating type tribotester
Fig. 3 F (Normal force) – δ (Indentation depth) curve for 30 : 1 PDMS specimen
Fig. 4 Summary of COF with respect to PDMS mixing ratio under 30 mN in dry condition
Fig. 5 Mechanism of friction under dry condition
Fig. 6 Summary of COF under lubricated condition
Fig. 7 Mechanism of friction under lubricated condition
A Study on Frictional Characteristics of PDMS Under Various Conditions

Young’s modulus and stiffness of PDMS specimens with respect to the mixing ratio of PDMS base and curing agent

PDMS mixing ratio 10 : 1 15 : 1 20 : 1 25 : 1 30 : 1
Young’s modulus
[kPa] (STDEV)
1478.3
(6.8)
1025.1
(5.5)
598.1
(7.0)
413.5
(5.0)
219.4
(16.8)
Stiffness
[N/m] (STDEV)
491.9
(11.3)
376.2
(12.8)
231.2
(1.7)
77.3
(5.7)
95.9
(9.9)
Table 1 Young’s modulus and stiffness of PDMS specimens with respect to the mixing ratio of PDMS base and curing agent