A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
PIPE MATERIAL AND PIPELINE
To provide a pipe material and pipeline that have sufficient strength while having high thermal expandability.SOLUTION: A pipe material contains polyvinyl chloride resin, 10-20 pts.mass particulate thermally expansible graphite relative to 100 pts.mass of the polyvinyl chloride resin, and particulate flame retardant. A ratio (B/A) of the average particle diameter (B) of the particulate flame retardant to the average particle diameter (A) of the particulate thermally expansible graphite is 0.1 to 0.7.SELECTED DRAWING: None
【課題】高い熱膨張性を有しつつも、十分な強度を備えた管材及び配管を提供すること。【解決手段】 ポリ塩化ビニル系樹脂、該ポリ塩化ビニル系樹脂１００質量部に対して１０〜２０質量部の粒子状熱膨張性黒鉛、及び粒子状難燃剤を含み、前記粒子状熱膨張性黒鉛の平均粒子径（Ａ）と前記粒子状難燃剤の平均粒子径（Ｂ）との比率（Ｂ／Ａ）が０．１〜０．７であることを特徴とする、管材。【選択図】なし
PIPE MATERIAL AND PIPELINE
To provide a pipe material and pipeline that have sufficient strength while having high thermal expandability.SOLUTION: A pipe material contains polyvinyl chloride resin, 10-20 pts.mass particulate thermally expansible graphite relative to 100 pts.mass of the polyvinyl chloride resin, and particulate flame retardant. A ratio (B/A) of the average particle diameter (B) of the particulate flame retardant to the average particle diameter (A) of the particulate thermally expansible graphite is 0.1 to 0.7.SELECTED DRAWING: None
【課題】高い熱膨張性を有しつつも、十分な強度を備えた管材及び配管を提供すること。【解決手段】 ポリ塩化ビニル系樹脂、該ポリ塩化ビニル系樹脂１００質量部に対して１０〜２０質量部の粒子状熱膨張性黒鉛、及び粒子状難燃剤を含み、前記粒子状熱膨張性黒鉛の平均粒子径（Ａ）と前記粒子状難燃剤の平均粒子径（Ｂ）との比率（Ｂ／Ａ）が０．１〜０．７であることを特徴とする、管材。【選択図】なし
PIPE MATERIAL AND PIPELINE
管材及び配管
NAKANO HAJIME (author) / KUBO YOSHIHIRO (author)
2019-07-04
Patent
Electronic Resource
Japanese
IN THE PIPELINE - A new pressure pipe material has been developed.
Online Contents | 1994