Mechanical and thermal properties of NaOH treated sisal natural fiber reinforced polymer composites: Barium sulphate used as filler

A novel Himachal’s Bagar (Sabai) grass fiber used as a brake friction material in brake polymer composite and compared to standard brake friction material

“…The shear strength was seen most elevated (Sabai grass fiber = 1620 Kgf and Kevlar = 1657 Kgf) for SF-2 and FK-1, it may be possible that enhanced percentage (5%-10%) of Sabai grass fiber may carry on as binder but 15%-20% fiber composite has showed no-uniform matrix. [26] Flexural strength flexural modulus and has showed its maximum value for SF-1and FK-1 while for SF-1 and FK-1 has showed lowest value of failure strain as demonstrated by Table 4 and heat swelling increase as increase the percentage of Sabai fiber in the polymer composites it might be cause because the natural fiber start to release gases and expands at 40 C. [26,[32][33][34] The porosity is expanding as percentage of Sabai grass fiber and Kevlar is expanding in the polymer pattern (Kevlar = 3.0%-3.08% and Sabai grass and Sabai grass fiber 3.20), some pattern is applied for the compressibility at lower value of porosity, lesser the compressibility (Kevlar = 1.30% and Sabai grass fiber = 1.43) and for greater value of the porosity, it demonstrations the greatest compressibility (Kevlar = 1.36% and Sabai grass fiber = 1.78%). The hardness decreases with the expansion of the Kevlar fibers and Sabai grass fiber in the developed tests.…”

“…Hardness reduces with the increment level of Kevlar and Sabai grass fiber in composites (Kevlar = 118.7-117.6 and Sabai grass fiber 117.9-113.9). [25,26] The tensile strength was determined most extreme (Kevlar = 16.57 MPa and Sabai grass fiber = 16.80 MPa) for the SF-2 and FK-1 composites and notification and Sabai grass fiber 0.248J) for SF-4 and FK-2. [26,[32][33][34] The proof stress showing its highest value for SF-2 and KV-1 composites.…”

“…[25] To determine the ash content fabricated specimens (2-4 g) were burnt for 2 h in the (muffle) furnace at the temperature 840 C. To determine the water absorption the fabricated specimen put in the distilled water for a day (ASTM D 570-98 standard). [26] The weighing machine was utilized to determine the weight of the specimen (water absorption is the difference between final to preliminary weight). The hardness was assessed by utilizing the R scale on the harness-testing machine (digital) (Model TRSN).…”

“…The flexural specimens are set up according to the ASTM D790 standards of 50 mm  11 mm  4 mm. [26,[32][33][34]…”

“…[17][18][19] Besides, natural fibers are utilized these days in other applications like cyclic protective helmet, aerospace, medical fields, and transportations and vehicle parts. [20][21][22][23][24][25][26] Natural fibers have some disadvantages, for example, higher water absorption, which can diminish the mixing capacity. Yet it has revealed by various articles that properties like wetting, porosity, strain, and bond strength of the surface can be improved by the natural fiber treatment.…”