Abrasive wear of polypropylene/Cloisite 30B/Elvaloy AC 3427 nanocomposites

Abstract

Polymer nanocomposite may be defined as a structure that is formed by infusing at least one dimension of the dispersed particles in the nanoscale range into a thermoplastic polymer matrix. Polypropylene/Cloisite-30B/Elvaloy-AC3427 nanocomposites were manufactured by melt intercalation method using a twin screw extruder. X-ray diffraction shows an intercalated structure of nanocomposite category. The investigation of tribological properties of polypropylene/Cloisite-30B/Elvaloy-AC3427 nanocomposite material has enormous practical importance to ascertain the friction and wear values. In the tribological study, the two-body abrasive wear was conducted with input parameters (Cloisite-30B, load and sliding distance) and output parameters (wear loss, specific wear rate and coefficient of friction) at 0.5 m/s sliding velocity. The detailed validation of the abrasive wear volume with mechanical properties (tensile strength, elongation at break and shore d hardness), and the dominant factors of abrasive wear by analysis of variance and worn surface morphology by Scanning Electron Microscope were reported.

Effect of fiber type, fiber content, and compatibilizer on two-body abrasive wear performance of HDPE matrix composites

“…39 In addition, the particle size of the sandpaper together with normal load and sliding distance may play a vital role for two-and three-body abrasive wear. 2,3,24,43 Therefore, further investigation is required anyway to define the wear characteristics of HDPE/ CF/BF/JF/CCF composites with PE-g-MA compatibilization. The direction of the next research is to study dry sliding properties of the composites against a bulk ceramic or metal counterface, and to compare the findings.…”

Tuning of nanotube/elastomer ratio for high damping/tough and creep resistant polypropylene/SEBS-g-MA/HNT blend nanocomposites

“…The toughness enhancement for 3H9SMA nanocomposite can also be explained by inhibited intertubular interactions of SEBS-coated HNTs during MB preparation via hydrogen bonding interactions of hydroxyl groups of nanotubes and SEBS-g-MA compatibilizer. 12,29 The increase in toughness together with decrease in modulus and yield strength for the nanocomposite may be ascribed to the formation of a flexible interphase with elastomeric SEBS phase 4,36 and its low Young's modulus (3)(4)(5)(6)(7) decreasing the stiffness of the composites. [37][38][39][40] Moreover, as compared to neat PP, the lower yield strength of all the nanocomposites can be attributed to distortion of long range order in PP phase by the elastomeric SEBS phase.…”

“…Since nano-sized particles particularly reduce toughness and impact strength, 1-5 elastomeric compatibilizers have been used frequently in PP nanocomposite formulations to enhance both mechanical strength and toughness properties. [6][7][8][9] Among them, maleic anhydride grafted polystyrene-b-poly (ethylene/butylene)-b-polystyrene (SEBS-g-MA) elastomeric compatibilizer have been reported to enhance both hardness and ductility by using an optimized elastomer and clay content. [10][11][12][13] The improved results obtained were attributed to the interactions of the MA group and the silanol and siloxane groups of the clay layers.…”

Abrasive Wear Properties of Miswak and its Use as Reinforcement Phase in Dental Prosthesis Materials

“…Ayrıca, yük, hız, kayma mesafesi gibi test parametrelerinin ağır abrazif şartlarda oluşan sürtünme ısısını dolayısıyla çoğu polimer kompozitin sürtünme ve aşınma davranışını etkilediği de bilinmektedir (Shalwan and Yousif 2013). Özetle, zımpara kâğıdının partikül boyutu, yük ve kayma mesafesi hem 2-hem de 3-elemanlı abrazif aşınma için önemli parametreler olup (Ramesh and Suresha 2014, Tong et al 2006, Kumar and Panneerselvam 2016, Daniel and Panneerselvam 2018, polimer kompozitlerin rijitlikleri ile ters orantılı aşınma dirençlerinin görülmesini sağlayabilirler. Sonuç olarak, PP/PP-g-MA/misvak kompozitlerin tribolojik özelliklerinin daha iyi anlaşılabilmesi için farklı test parametrelerinde ve abrazif olmayan kayma şartlarında testlerin tekrarlanması faydalı görülmektedir.…”