Mechanical, thermal and dynamic-mechanical studies of functionalized halloysite nanotubes reinforced polypropylene composites
- Authors
- Krishnaiah, Prakash; Manickam, Sivakumar; Ratnam, Chantara Thevy; Raghu, Madihalli Srinivas; Parashuram, Lakshminarayana; Prasanna, Kumar S.; Jeon, Byong Hun
- Issue Date
- Oct-2021
- Publisher
- SAGE PUBLICATIONS LTD
- Keywords
- Functionalization; halloysite nanotubes; (3-aminopropyl) triethoxysilane; polymer composite; polypropylene
- Citation
- POLYMERS&POLYMER COMPOSITES, v.29, no.8, pp.1212 - 1221
- Indexed
- SCIE
SCOPUS
- Journal Title
- POLYMERS&POLYMER COMPOSITES
- Volume
- 29
- Number
- 8
- Start Page
- 1212
- End Page
- 1221
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/144951
- DOI
- 10.1177/0967391120965115
- ISSN
- 0967-3911
- Abstract
- Mechanical, dynamic-mechanical and thermal performance of polypropylene (PP) composites which are composed of (3-Aminopropyl) triethoxysilane (APTES) functionalized Halloysite nanotubes (HNTs) were investigated. Functionalization of HNTs was confirmed by the presence of amine stretching peaks in the FTIR spectrum. A decrease in the agglomeration and high dispersion of APTES-HNTs across the PP matrix was confirmed by scanning electron micrographs (SEM). The mechanical properties of APTES-HNT-PP polymer composites were superior over their unmodified counterparts. Tensile properties such as maximum strength, Young’s modulus and impact strength were significantly enhanced by 28%, 45% and 60% respectively, with 6 wt% incorporation of surface-modified HNTs into PP matrix. A drastic improvement of stiffness and thermal stability of composites was noted with the incorporation of APTES modified HNTs into PP polymer. Differential scanning calorimetry (DSC) analysis showed a total increase of 22% in the crystallinity of clay polymer nanocomposite after filled with surface-modified HNTs. Overall, the outcome of this research confirms the modification of the surface of HNTs with a silane coupling agent, which enhances the mechanical and thermal performance of PP composites incorporated HNTs.
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