scholarly journals Influence of initial fiber length on the mechanical and tribological properties of hemp fiber reinforced plants-derived polyamide 1010 biomass composites

2017 ◽  
Author(s):  
Yosuke Nishitani ◽  
Jun Mukaida ◽  
Toshiyuki Yamanaka ◽  
Tetsuto Kajiyama ◽  
Takeshi Kitano
Keyword(s):  
Tribological Properties ◽  
Fiber Length ◽  
Fiber Reinforced ◽  
Hemp Fiber ◽  
Mechanical And Tribological Properties ◽  
Polyamide 1010 ◽  
Initial Fiber

scholarly journals Influence of Epoxy Resin Treatment on the Mechanical and Tribological Properties of Hemp-Fiber-Reinforced Plant-Derived Polyamide 1010 Biomass Composites

Molecules ◽  
2021 ◽  
Vol 26 (5) ◽  
pp. 1228
Author(s):  
Maiko Morino ◽  
Tetsuto Kajiyama ◽  
Yosuke Nishitani
Keyword(s):  
Mechanical Properties ◽  
Wear Rate ◽  
Surface Treatment ◽  
Epoxy Resin ◽  
Tribological Properties ◽  
Alkaline Treatment ◽  
Hemp Fiber ◽  
Mechanical And Tribological Properties ◽  
Polyamide 1010 ◽  
Resin Treatment

In this study, we investigated the influence of epoxy resin treatment on the mechanical and tribological properties of hemp fiber (HF)-reinforced plant-derived polyamide 1010 (PA1010) biomass composites. HFs were surface-treated using four types of surface treatment methods: (a) alkaline treatment using sodium chlorite (NaClO2) solution, (b) surface treatment using epoxy resin (EP) solution after NaClO2 alkaline treatment, (c) surface treatment using an ureidosilane coupling agent after NaClO2 alkaline treatment (NaClO2 + A-1160), and (d) surface treatment using epoxy resin solution after the (c) surface treatment (NaClO2 + A-1160 + EP). The HF/PA1010 biomass composites were extruded using a twin-screw extruder and injection-molded. Their mechanical properties, such as tensile, bending, and dynamic mechanical properties, and tribological properties were evaluated by the ring-on-plate-type sliding wear test. The strength, modulus, specific wear rate, and limiting pv value of HF/PA1010 biomass composites improved with surface treatment using epoxy resin (NaClO2 + A-1160 + EP). In particular, the bending modulus of NaClO2 + A-1160 + EP improved by 48% more than that of NaClO2, and the specific wear rate of NaClO2 + A-1160 + EP was one-third that of NaClO2. This may be attributed to the change in the internal microstructure of the composites, such as the interfacial interaction between HF and PA1010 and fiber dispersion. As a result, the mode of friction and wear mechanism of these biomass composites also changed.

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