Morphological effect of fillers on graphite reinforced polydicyclopentadiene based composites
2014; Wiley; Volume: 35; Issue: 10 Linguagem: Inglês
10.1002/pc.22850
ISSN1548-0569
AutoresFangyuan Hu, Jie Du, Yubin Zheng,
Tópico(s)Polymer Nanocomposites and Properties
ResumoGraphite reinforced polydicyclopentadiene (polyDCPD) composites were synthesized via the in situ ring‐opening metathesis polymerization (ROMP) of DCPD with vapor‐grown carbon fiber (VGCF), acidified multiwall carbon nanotube ( a ‐MWCNT), and mildly oxidized graphene oxide (MOGO) as distinctive reinforcing fillers, respectively. We studied the morphological effect of the fillers on the mechanical and thermal properties of graphite/polyDCPD composites. Mechanical property tests showed that the addition of VGCF greatly strengthened the tensile strength, the introduction of a ‐MWCNT dramatically extended the elongation at break, whereas the incorporation of MOGO enhanced both performances of the resulting composites. Impact tests showed that the maximum mechanical performances of a ‐MWCNT/polyDCPD and MOGO/polyDCPD composites both were got with 0.4 wt% of fillers ( a ‐MWCNT and MOGO) loading. Meanwhile, all of the reinforced composites exhibited increased thermal stabilities compared with the unfilled polyDCPD, confirmed by increased T g s and thermal decomposition temperatures at 5 wt% weight loss. POLYM. COMPOS., 35:1918–1925, 2014. © 2014 Society of Plastics Engineers
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