A effect of moisture on photo-degradation for polypropylene

Tomonori Iizuka, Yoshito Ohtake, Keiji Tanaka

研究成果: ジャーナルへの寄稿記事

抄録

Photo-degradation of polymers for outdoor use are accelerated by degradation factors such as heat and moisture. Polypropylene(PP) is excellent in water resistance, but is inferior to weatherability. Therefore, in this study, PP was exposed under the water spray condition by using Xenon arc lamp. We evaluated the synergistic effect of light and moisture using the quantification technique of degradation. Results from the Fourier-transform infrared spectroscopic and X-ray Photoelectron Spectroscopy revealed that moisture accelerated the oxidative degradation of PP. In addition, with the progress of the oxidative degradation, melting point and thermal decomposition temperature of PP was lowered. The resulting collapse of crystal structure and chain scission therefore deteriorated the mechanical properties (Charpy impact strength, elongation) of PP.

元の言語英語
ページ(範囲)812-817
ページ数6
ジャーナルZairyo/Journal of the Society of Materials Science, Japan
65
発行部数11
DOI
出版物ステータス出版済み - 11 1 2016

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Polypropylenes
Photodegradation
polypropylene
moisture
Moisture
degradation
Degradation
Arc lamps
arc lamps
xenon lamps
impact strength
Xenon
Water
Impact strength
water
elongation
thermal decomposition
melting points
sprayers
Melting point

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

これを引用

A effect of moisture on photo-degradation for polypropylene. / Iizuka, Tomonori; Ohtake, Yoshito; Tanaka, Keiji.

:: Zairyo/Journal of the Society of Materials Science, Japan, 巻 65, 番号 11, 01.11.2016, p. 812-817.

研究成果: ジャーナルへの寄稿記事

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