کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
822236 | 1469560 | 2008 | 8 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Composites based on bimodal vinyl ester resins with low hazardous air pollutant contents Composites based on bimodal vinyl ester resins with low hazardous air pollutant contents](/preview/png/822236.png)
Vinyl ester (VE) resins with a bimodal distribution of molecular weights were prepared via methacrylation of epoxy monomers. Bimodal VE resins and neat polymers had viscosities and mechanical properties similar to that of commercial resins. E-glass composites were prepared and also found to have similar mechanical and thermo-mechanical properties relative to composites fabricated using commercial resins. However, the fracture toughness of the bimodal resins was superior to that of the commercial resins partially as a result of increased molecular relaxations that were manifested in a broader glass transition. Overall, bimodal resins allow for the use of low styrene content (∼33 wt%), while maintaining excellent thermal, mechanical, and fracture properties for the neat resins and composites.
Journal: Composites Science and Technology - Volume 68, Issues 7–8, June 2008, Pages 1869–1876