English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

In this work, polypropylene (PP) was treated by air plasma to improve its adhesion properties. The inuence of plasma treatment time was studied. As can be showed from results of static contact angle, the air plasma treatment improved significantly hydrophilic property of PP surface - the contact angle was reduced from 109 to 56 o , respectively, before and after 3 minutes plasma treatment. In addition, Scanning Electron Microscope (SEM) images showed that after plasma treatment, the morphology of polymer surface saw rougher than before. The results of Fourier Transformed Infrared Spectroscopy (FT-IR) also presented that newly created hydrophilic functional groups (C=O, O-H) on the polypropylene surface caused by plasma treatment. As a result, the lap-shear strengths of PP after plasma treatment were substantially improved. As can be conclude from the results of this study, the suitable plasma treatment time for PP was 3 minutes.

Nghiên c u  nh h  ng c a x  lý plasma   n    bám dính c a l p ph  khâu m ch quang trên n n polypropylen. Ph n 1. Nghiên c u  nh h  ng c a x  lý plasma không khí   n tính ch t b  m t polypropylen.