Study on plasma surface modification and mechanism of PTFE fiber
In this paper,the effect of plasma surface modification of PTFE fibers was investigated through contact angle,monofilament pull-out,and peel strength measurements.The obtained samples were analyzed by means of scanning elec-tron microscopy,Fourier-transform infrared spectroscopy,and X-ray photoelectron spectroscopy.The results indicated that the plasma surface modification of PTFE fibers promoted higher compatibility and higher adhesion between materi-als,thus resulting in better performance.The modified PTFE fibers showed an increase in the interface shear strength at first and then decreased with an increase in the time.Such an effect weakened gradually with an increase in the placement time,leading to a failure in the modification effect failed after 24 h.
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