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

Abstract

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.

Use of Chènevotte, a Valuable Co-Product of Industrial Hemp Fiber, as Adsorbent for Pollutant Removal. Part I: Chemical, Microscopic, Spectroscopic and Thermogravimetric Characterization of Raw and Modified Samples

“…), recreation, horticulture, leisure (fishing, sports), jewelry and fashion, industrial products (impregnation products for wood treatment, paints, solvents, inks, etc.) or energy and biofuel production [ 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 ]. Hemp cultivation has been revived by “new” uses such as in construction and home renovation (hemp concrete, insulation panels, etc.)…”

Thermal, Mechanical and Tribological Properties of Gamma-Irradiated Plant-Derived Polyamide 1010

“…To clarify the friction and wear mechanisms of PA1010 and PA1010/TAIC with/without the gamma-irradiation, the observation of the shape and size of wear debris generated during sliding is essential [ 9 , 24 ]. Figure 6 shows the SEM photographs of wear debris of various gamma-irradiated PA1010 and PA1010/TAIC collected from outside the sliding surface after the sliding wear measurement: PA1010 ( Figure 6 a), PA1010_20 ( Figure 6 b), PA1010/TAIC ( Figure 6 c) and PA1010/TAIC_20 ( Figure 6 d).…”

“…The experimental methods used were DSC, DMA, tensile, and three-point-bend. Durometer hardness and sliding wear tests are the same as those in our previous articles [ 8 , 9 , 24 ]; details are omitted in this article. To understand the friction and wear mechanism, the wear debris after the sliding wear test was observed using a scanning electron microscope (SEM; JSM6360LA, JEOL Ltd., Tokyo, Japan).…”

“…Several studies have reported the results of the research on molybdenum disulfide (MoS 2 ) filler and carbon fiber (CF) reinforced PA1010 composites [13], that of copper oxide (CuO) filler and CF reinforced PA1010 composites [14,15], and that of zinc oxide particles and whiskers filled PA1010 composites [16]. In our previous studies, we investigated the effect of surface treatment of fiber on the tribological properties of natural fiber (NF), namely hemp fiber, jute fiber, ramie fiber and sisal fiber, reinforced plant-derived PA1010 biomass composites [9,[17][18][19][20][21][22][23][24]. We found that filling with NF and surface treatment of NF improves the tribological properties of plant-derived PA1010.…”

Identification of mechanical properties of an araldite LY556 blended with DNR composite and polyacetal: A comparative study for sustainable future

“…It delivers some of the finest properties such as toughness, corrosive resistance, electrical resistance, temperature resistance, smoothness, durability, excellent flexibility, high reactivity and so on. These resins, when exposed to amines and anhydrides tend to deliver similar properties compared to its peers and when reinforced with natural fibers, produces lower density that gives an edge in lightweight applications (Morino, 2021;Saba et al, 2016). On addition of certain fillers such as copper slag, wheat husk and rye husk the physical strength and temperature resistance can be improved considerably (Biswas et al, 2010;Ren et al, 2019).…”