|
|||||
|
|
Mechanical properties of intercalated cyanate ester-layered silicate nanocomposites |
|
| Authors: | Sabyasachi GanguliDerrick Dean Kelvin JordanGary Price Richard Vaia |
| Affiliation: | a Center for Advanced Materials, Tuskegee University, 101 Chappie James Center, Tuskegee, AL 36088, USA b Raytheon Electronic Systems, Tuscan, AZ, USA c University of Dayton Research Institute, Dayton, OH, USA d Air Force Research Laboratory, Materials and Manufacturing Directorate, WPAFB, OH, USA |
| Abstract: | Cyanate ester resins are among the most important engineering thermosetting polymers and have received attention because of their outstanding physical properties such as low water absorptivity and low outgassing. However, like most thermosets their main drawback is brittleness. Nanocomposites of cyanate esters were prepared by dispersing organically modified layered silicates (OLS) into the resin. Inclusion of only 2.5% by weight of OLS led to a marked improvement in physical and thermal properties (Coefficient of thermal expansion, Tg and effective thermal stability). Most impressively, a 30% increase in both the modulus and toughness was obtained. |
| Keywords: | Cyanate esters Nanocomposites High temperature thermosets |
| 本文献已被 ScienceDirect 等数据库收录！ | |