TY - JOUR
T1 - Effects of temperature and humidity on self-healing behaviour of biopolymer hydroxylpropyl methylcellulose for ecotribology
AU - Shi, Shih Chen
AU - Huang, Teng Feng
N1 - Funding Information:
The authors gratefully acknowledge the financial supports for this project from the Ministry of Science and Technology in Taiwan (MOST 104-2221-E-006-057, MOST 105-2221-E-006-069, and MOST 106-2221-E-006-092-MY3) and supported in part by the Headquarters of University Advancement at the National Cheng Kung University, which is sponsored by the Ministry of Education, Taiwan. The authors also thank Center for Micro/Nano Science and Technology and Instrument Center, National Cheng Kung University (NCKU), for technical support.
Funding Information:
The authors gratefully acknowledge the financial supports for this project from the Ministry of Science and Technology in Taiwan ( MOST 104-2221-E-006-057 , MOST 105-2221-E-006-069 , and MOST 106-2221-E-006-092-MY3 ) and supported in part by the Headquarters of University Advancement at the National Cheng Kung University, which is sponsored by the Ministry of Education, Taiwan . The authors also thank Center for Micro/Nano Science and Technology and Instrument Center, National Cheng Kung University (NCKU), for technical support.
Publisher Copyright:
© 2018 Elsevier B.V.
PY - 2018/9/25
Y1 - 2018/9/25
N2 - The self-healing properties of biological hydroxypropyl methylcellulose (HPMC) high-molecular weight thin films were investigated. The effects of environmental factors (e.g., temperature and humidity) on the self-healing capabilities of HPMC were also experimentally evaluated. Tribological tests were performed to observe the change in the HPMC healing rates under different levels of temperature and humidity. The changes in weight observed in the HPMC samples indicated that environmental moisture condensed on the surface of the samples and caused HPMC solvation, which led to the healing of wear marks. Using full-factorial tests, we determined that the HPMC achieved a maximum healing rate of 70% after being treated for 16 h at 90 °C and a relative humidity of 90%. It was found that the tribological characteristics were similar before and after the healing process, with the application of the appropriate healing parameters.
AB - The self-healing properties of biological hydroxypropyl methylcellulose (HPMC) high-molecular weight thin films were investigated. The effects of environmental factors (e.g., temperature and humidity) on the self-healing capabilities of HPMC were also experimentally evaluated. Tribological tests were performed to observe the change in the HPMC healing rates under different levels of temperature and humidity. The changes in weight observed in the HPMC samples indicated that environmental moisture condensed on the surface of the samples and caused HPMC solvation, which led to the healing of wear marks. Using full-factorial tests, we determined that the HPMC achieved a maximum healing rate of 70% after being treated for 16 h at 90 °C and a relative humidity of 90%. It was found that the tribological characteristics were similar before and after the healing process, with the application of the appropriate healing parameters.
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U2 - 10.1016/j.surfcoat.2018.03.039
DO - 10.1016/j.surfcoat.2018.03.039
M3 - Article
AN - SCOPUS:85044294452
SN - 0257-8972
VL - 350
SP - 997
EP - 1002
JO - Surface and Coatings Technology
JF - Surface and Coatings Technology
ER -