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Indian Journal of Engineering and Materials Sciences (IJEMS) >
IJEMS Vol.19 [2012] >
IJEMS Vol.19(5) [October 2012] >
| Title: | Effect of environments on the thermal properties of epoxy adhesives modified with nano- and micro-particles for in-situ timber bonding |
| Authors: | Ahmad, Z
Ansell, M P
Smedley, D
Tahir, P Md |
| Keywords: | Glass transition temperature
DMTA
Thermal properties
Epoxy-based adhesive
Nano- and micro-particles |
| Issue Date: | Oct-2012 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | This paper reports the investigation made on the
effect of nano- and micro-particles additions on the thermal properties of
epoxy based adhesives when exposed to different environmental conditions. The
thermal behaviors of the adhesives are measured using dynamic mechanical
thermal analysis (DMTA) following exposure to different temperatures and
humidities which include temperatures
of 20, 30 and 50°C, relative humidities of 65, 75 and 95% RH and soaking in
water at 20°C and placed in the oven at 50°C. The dynamic thermal properties reported
include storage modulus and loss modulus, the loss tangent and the glass
transition temperature, Tg.
For nano- and micro-particles filled adhesives, the glass transition
temperature increases with increase in temperature even though the adhesives are
subjected to high humidity and this is due to further cross-linking. The
results show that room temperature cured epoxies are only partially cured at
room temperature. |
| Page(s): | 343-356 |
| CC License: |  CC Attribution-Noncommercial-No Derivative Works 2.5 India |
| ISSN: | 0975-1017 (Online); 0971-4588 (Print) |
| Source: | IJEMS Vol.19(5) [October 2012]
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