Research for Mechanical Properties of Wet Nonwoven Fabric Based on Recycled Carbon Fiber Using Cellulose Nanofibrils
Vol. 58, No. 1, pp. 40-47,
Feb. 2021
10.12772/TSE.2021.58.040
PDF
Abstract
Carbon fiber is an advanced material widely used in high-tech industries because
of its light weight, heat resistance, chemical resistance, excellent mechanical properties, and
electrical and thermal conductivity. However, carbon fibers also have high production costs
and limited disposal methods (e.g., landfills). Research is being conducted to address these
problems through the recycling of carbon fibers. Among the representative recycled carbon
fiber products, wet nonwoven fabrics have limitations in their mechanical properties
because their structure simply consists of stacked microsized-diameter carbon fibers and a
binder. In this study, the tensile strength was improved by adding cellulose nanofibrils
(CNFs) during the manufacturing of wet nonwoven fabrics by mixing short-cut carbon
fibers and a binder (short-cut PVA fibers). CNF bundles improve the mechanical properties
by forming a complex structure via the crosslinking of carbon fibers and short PVA fibers.
The tensile strength of nonwoven fabrics consisting of short carbon fibers and PVA fibers
was determined to be 92 gf. On the other hand, the tensile strength of the nonwoven fabric
with 10% CNF added to the binder increased by approximately 20 times to 1,808 gf. The
composite with nanofiber was confirmed to be effective in forming a structure with high
mechanical properties when fabricating microfiber-based nonwoven fabrics.
Statistics
Cumulative Counts from November, 2022
Multiple requests among the same browser session are counted as one view. If you mouse over a chart, the values of data points will be shown.
