Interfacial Adhesion between Polyurethane Resin and Ultra-highmolecular-weight Polyethylene Fiber with Plasma Treatment and Low-concentration Polyurethane Coating
Vol. 59, No. 1, pp. 72-78,
Feb. 2022
10.12772/TSE.2022.59.072
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Abstract
In this study, the interfacial adhesion between polyurethane (PU) resin and ultrahigh-
molecular-weight polyethylene (UHMWPE) fiber, which was coated with low-concentration
PU after plasma treatment, was investigated. First, the UHMWPE fiber was treated
with nitrogen plasma. Subsequently, it was coated with extremely low-concentration PU
resin for improving its interfacial adhesion with the PU resin. The effects of plasma treatment
and low-concentration PU coating were analyzed using XPS, FTIR-ATR, SEM, and
AFM. Furthermore, the interfacial shear strength between the plasma-treated UHMWPE
fiber and PU resin was measured using the microdroplet test. Consequently, the interfacial
adhesion was improved by the low-concentration PU coating after the plasma treatment,
due to the increase in mechanical interlocking and molecular diffusion of PU resin.
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