Abstract
Environmental degradation due to temperature and humidity has been studied by infrared (IR) spectroscopy on polyethylene (PE), cellulose-acetate (CA) and polycarbonate (PC) films. Specimens were exposed in a vessel at a constant temperature and humidity for 12∼40 days, and tensile tests of the specimens were carried out at room temperature. The weight, the water absorption and the IR-absorption spectra of the specimens were also measured before the exposure and after. Due to the effects of environment, the change of the weight and water absorption occurred for CA, but not for PE and PC. For CA the weight decreased for all exposure conditions while the water absroption increased with humidity. The variation of fracture strain and yield stress was observed for CA, but not for PE and PC. Similarly, only for CA the rate of IR absorption at 745 and 1288 cm-1 decreased with humidity. Linear relationships were found between mechanical properties and the rate of IR absorption.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
