RT Journal Article
T1 Morphological and Tribological Properties of PMMA/Halloysite Nanocomposites
A1 Vuluga, Zina
A1 Corobea, Mihai
A1 Elizetxea, Cristina
A1 Ordonez, Mario
A1 Ghiurea, Marius
A1 Raditoiu, Valentin
A1 Nicolae, Cristian
A1 Florea, Dorel
A1 Iorga, Michaela
A1 Somoghi, Raluca
A1 Trica, Bogdan
AB From an environmental and cost-effective perspective, a number of research challenges can be found for electronics, household, but especially in the automotive polymer parts industry. Reducing synthesis steps, parts coating and painting, or other solvent-assisted processes, have been identified as major constrains for the existing technologies. Therefore, simple polymer processing routes (mixing, extrusion, injection moulding) were used for obtaining PMMA/HNT nanocomposites. By these techniques, an automotive-grade polymethylmethacrylate (PMMA) was modified with halloysite nanotubes (HNT) and an eco-friendly additive N,N′-ethylenebis(stearamide) (EBS) to improve nanomechanical properties involved in scratch resistance, mechanical properties (balance between tensile strength and impact resistance) without diminishing other properties. The relationship between morphological/structural (XRD, TEM, FTIR) and tribological (friction) properties of PMMA nanocomposites were investigated. A synergistic effect was found between HNT and EBS in the PMMA matrix. The synergy was attained by the phase distribution resulted from the selective interaction between partners and favourable processing conditions. Modification of HNT with EBS improved the dispersion of nanoparticles in the polymer matrix by increasing their interfacial compatibility through hydrogen bonding established by amide groups with aluminol groups. The increased interfacial adhesion further improved the nanocomposite scratch resistance. The PMMA/HNT-EBS nanocomposite had a lower coefficient of friction and lower scratch penetration depth than PMMA/HNT nanocomposite.
SN 2073-4360
YR 2018
FD 2018-07-25
LA eng
NO Vuluga , Z , Corobea , M , Elizetxea , C , Ordonez , M , Ghiurea , M , Raditoiu , V , Nicolae , C , Florea , D , Iorga , M , Somoghi , R & Trica , B 2018 , ' Morphological and Tribological Properties of PMMA/Halloysite Nanocomposites ' , Polymers , vol. 10 , no. 8 , 816 , pp. 816 . https://doi.org/10.3390/polym10080816
NO Publisher Copyright: © 2018 by the authors.
DS TECNALIA Publications
RD 25 jul 2024