Influence of weave of carbon fabric on abrasive wear performance of polyetherimide composites

Abstract

Three composites of Polyetherimide (PEI) reinforced with carbon fabric (CF) of three weaves viz. plain, twill and satin-4 H were developed keeping the amount of fabric constant (55% by vol.). Studies on mechanical properties confirmed that the twill weave composite (T) showed the highest strength, modulus (both tensile and flexural) and interlaminar shear strength (ILSS) followed by satin (S) and plain weave (P) composites. The performance order, however, was reverse in the case of toughness and elongation to break. Specific wear rate in a single-pass, unidirectional and un-lubricated abrasive wear mode against SiC paper showed strong influence of weave in mild wear condition (load 10 N). Composite S showed the highest wear resistance (W R ) followed by composites T and P. With increase in load, the difference in performance diminished to the extent that at 40 N, it was almost similar for all the three composites. This was correlated with the difference in the length of the fibers between crossover points which, in turn, allowed the microdisplacement of fibers in the composites during abrasion. This was supported by the SEM.KEY WORDS: bi-directionally (BD) reinforced polymer composites, abrasive wear behavior of BD composites, polyetherimidecarbon fabric composites, weaves of fabric in tribology

Influence of Plasma Treatment on Carbon Fabric for Enhancing Abrasive Wear Properties of Polyetherimide Composites

“…• l decreased gradually with load for all the composites, which is commonly observed for polymer composites [29][30][31]. • The specific wear rates (K 0 ) for all the composites were in the range of (6-11) 9 10 -10 m 3 /Nm and following was the order of K 0 , confirming that plasma treatment proved beneficial to improve strength properties in general as well as wear resistance.…”

Role of Nano-YbF3-Treated Carbon Fabric on Improving Abrasive Wear Performance of Polyetherimide Composites

“…As seen in Fig. 4 the coefficient of friction of composites reduced with load which is as per general trend in the literature for polymer composites [22,23]. Treated CF composites showed slightly lower l than the C 0 .…”

“…Abrasive wear studies in a single-pass condition and in forward linear motion were conducted on linear abrasive wear rig fabricated by Magnum Engineers, Bangalore (India) discussed elsewhere [22]. Prior to the experiment, the composite pin (10 mm 9 10 mm 9 3.5-4 mm) was abraded against a fine abrasive paper of grade 800 for uniform contact.…”

Optimization of weave of carbon fabric for best combination of strength and tribo-performance of polyetherimide composites in adhesive wear mode

“…Most of these studies are focused on the composites based on thermoset resins and pertain to the influence of different fabrics such as CF, GF or AF on wear performance. Papers published on the tribo-composites based on thermoplastic polymers such as Polyetheretherketone (PEEK) reinforced with CF, GF and AF in adhesive [6,13,14], abrasive and fretting-fatigue wear modes on the other hand are very few [6][7][8][9][10][11][12][13][14].…”