کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
822587 | 906797 | 2007 | 8 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Graphite sheet coating for improved thermal oxidative stability of carbon fiber reinforced/PMR-15 composites Graphite sheet coating for improved thermal oxidative stability of carbon fiber reinforced/PMR-15 composites](/preview/png/822587.png)
Expanded graphite was compressed into graphite sheets and used as a coating for carbon fiber reinforced PMR-15 composites. BET analysis of the graphite indicated an increase in graphite pore size on compression, however the material was proven to be an effective barrier to oxygen when prepreged with PMR-15 resin. Oxygen permeability of the PMR-15/graphite was an order of magnitude lower than the compressed graphite sheet. By providing a barrier to oxygen permeation, the rate of oxidative degradation of PMR-15 resin was decreased. As a result, the composite thermo-oxidative stability increased by up to 25%. The addition of a graphite sheet as a top ply on the composites yielded little change in the material’s flexural strength or interlaminar shear strength.
Journal: Composites Science and Technology - Volume 67, Issue 10, August 2007, Pages 2183–2190