β Scribed by Howard A. Katzman; Franklin D. Ross; Pierre R. Valenzuela
No coin nor oath required. For personal study only.
The recovery of silicone oβrings after 23% compression at room temperature (22Β°C) was determined. Two sets of experiments were performed. To determine the effect of temperature on resiliency, the recovery of oβrings that had been compressed for 24 h at room temperature was measured at both 22Β°C and β7Β°C. To determine the effect of storage under compression on resiliency, the recovery at 22Β°C of oβrings compressed at room temperature for 6 months or 1 year was compared with those compressed for 24 h. In addition, the effect of a silicone lubricant on the recovery of the oβrings was determined. The initial room temperature recovery of silicone oβrings after being compressed for 6 months is somewhat slower than those compressed for 24 h. There is very little change in the recovery of the oβrings compressed for 1 year compared with those compressed for 6 months. Recovery after 24 h of compression is slower at β7Β°C than at 22Β°C. Silicone oil lubricant appears to aid recovery after 24 h of compression but has little effect after 6 months or 1 year of compression. Β© 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2009
π SIMILAR VOLUMES
## German-based Freudenberg Dichtungs-und Schwingungstechnik has introduced two material developments that are intended for growing areas of interest in the automotive industry. One is a material that permits only minimal CO 2 permeation, and is considered to be suitable for the development of air
## Abstract Resiliency and resilience theory is presented as three waves of resiliency inquiry. The identification of resilient qualities was the first wave characterized through phenomenological identification of developmental assets and protective factors. The second wave described resilience as