Wear behavior of polyamide 11 reinforced with titanate nanotubes

Abstract

Besides polyamide 11 (PA 11) outstanding properties, wear performance is considered a key factor for its continued widespread use. TiTanate NanoTubes (TTNT) have a huge potential as reinforcement in polymer matrix nanocomposites, and although nanotubes reinforcement capacity is well understood, its effect on tribological characteristics is still an open question. Thus, the present work has as objective to study the wear behavior of PA 11 and its nanocomposites, highlighting TTNT loading, functionalization and sodium content effects. Seeking the possibility to tailor properties, surface topography is investigated. Based on parameter classification, correlation and functional sense, an ideal roughness parameter set is defined. By taking measurements in X- and Y-axis, parameter variations and sensibility are also analyzed. From the results, maximum wear resistance can be reached in functionalized samples with low TTNT loading and high sodium content. Some roughness parameters demonstrate a moderate to strong correlation with wear performance. Parameter variations are mainly attributed to the non-stationarity of the surface.

Effect of addition of fillers (MoS2 and PFA) on the tribological and mechanical properties of biobased semi‐aromatic polyamide (PA10T)

“…While there have been extensive studies on the wear resistance of semi‐aromatic polyamide PA10T and its PTFE composites, few researches have investigated the effects of MoS 2 and PFA on PA10T 9 . Therefore, this study aims to experimentally examine the impact of different ratios of MoS 2 and PFA on the tribological properties of PA10T, to improve the wear resistance of bio‐based semi‐aromatic polyamide by adding fillers under the premise of maintaining excellent mechanical and thermal properties of PA10T, thus expanding its applications in fields such as automotive, machinery, electronics, and medical industries 10 …”

Öğütülmüş Kolemanit Dolgulu Poliamid-6.6 Kompozit Malzemesinin Tribolojik Özelliklerine Dolgu Miktarının Etkisi

“…Bu çalışmada kullanılması tercih edilen poliamid diğer polimerlerle kıyaslandığında daha üstün mekanik özelliklere, yüksek kimyasal ve aşınma direncine sahiptir [5,15]. Bu üstün özellikler poliamidin moleküler zincirlerinde bulunan hidrojen bağlarından dolayıdır [6,7].…”

PA 10.10 and PA 6 composites with glass or basalt fibre: mechanical properties in dry and wet state

“…A substantial number of scientific papers is devoted to PA composites but only a small part of it concerns composited with fully biobased matrix. Despite the small number of publications, research on PA 10.10 or PA 11 composites covers various thematic areas and concerns several types of reinforcements, including: nanocomposites, natural fiber composites, composites with chopped synthetic fibers and hybrid composites [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19].…”

“…Particularly satisfactory results were achieved by introducing copper powder into the composite, which resulted in a significant reduction in the coefficient of friction and the rate of abrasive wear. Recently, Pereira et al obtained promising wear performance results of PA11 with titanate nanotubes (TTNT) [14]. Maximum wear resistance was reached in functionalized nanocomposites with low TTNT loading (0.5 wt%) and high sodium content.…”