Improvement of weather resistance of film-forming type clear finishes by pre-treatment with PEG and influence of exposure test sites.

• KIGUCHI Makoto

  Forestry and Forest Products Research Institute

• KATAOKA Yutaka

  Forestry and Forest Products Research Institute

• DOI Syuichi

  Institute of Wood Technology, Akita Prefectural College of Agriculture

• MORI Mitsunori

  Hokkaido Forest Products Research Institute

• HASEGAWA Masuo

  Toyama Forestry and Forest Products Research Institute

• MORITA Shin-ichi

  Kagoshima Prefectural Institute of Industrial Technology

• KADEGARU Yukio

  Okinawa Prefectural Forest Experimental Station

• IMAMURA Yuji

  Wood Research Institute, Kyoto University

Bibliographic Information

Other Title

• ＰＥＧ系薬剤の基材処理による透明系造膜塗料の耐候性向上と暴露地の影響
• PEGケイ ヤクザイ ノ キザイ ショリ ニヨル トウメイケイ ゾウ マク ト

Abstract

The weathering resistance of a film forming type clear finish on Douglas-fir plywood pre-treated with polyethylene glycol (PEG) solutions was assessed by exposing coated specimens for two years at six test sites (Hokkaido, Tsukuba, Toyama, Kyoto, Kagoshima and Okinawa) in Japan. Pre-treatment with a 1% solution of DDAC did not. work to prevent surface failure of the clear film. A 10% solution of PEG as a pre-treatment showed excellent results for preventing film failure on the clear finish at all exposure test sites. This was likely to be due to properties of photo stabilization of wood surfaces by PEG. Pre-treatment with a 30% solution of PEG, however, showed, delamination of the clear finishing exposed at Hokkaido, Toyama and Okinawa. Since PEG is a high moisture absorptive reagent, the treated wood absorbs much moisture during exposure test where are much snow in winter (Hokkaido and Toyama) or high temperature and humidity (Okinawa). Climatic conditions of exposure test site influenced the weathering ability of film forming type finishes on wood treated by PEG as a pre-treatment.

Journal

• MOKUZAI HOZON (Wood Protection)

  MOKUZAI HOZON (Wood Protection) 23 (4), 168-175, 1997

  JAPAN WOOD PRESERVING ASSOCIATION

Details

• CRID: 1390001204293594752
• NII Article ID: 10028291171
• NII Book ID: AN00240373
• DOI: 10.5990/jwpa.23.168
• ISSN: 18840116
• ISSN: 02879255
• NDL BIB ID: 4324511
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4324511
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed