固体ポリウレタン泡の熱保と阻燃性を改善する二重機能添加物としてのスピロ型サイクリック・フォスファゼン誘導体

Kyosuke Isoda¹, Shuya Matsumoto¹, Masato Sakabe¹

¹Organic Materials Chemistry Group, Sagami Chemical Research Institute, 2743-1 Hayakawa, Ayase, Kanagawa 252-1193, Japan.

ACS omega

|August 25, 2025

まとめ

新しいスパイロ型のサイクルフォスファゼン誘導体は,硬質ポリウレタン泡 (RPUF) を強化する. これらの添加物は,燃焼阻害性やエネルギー効率の良い建材の熱絶縁性を改善します.

科学分野:

材料科学
ポリマー化学
建築科学

背景:

建物はエネルギーの大量消費物であり,先進的な保温材料を必要とします.
固体ポリウレタン発泡材 (RPUF) は絶好の保温性能を備えているが,燃焼性の問題がある.
熱性能を損なわずに燃焼阻害性を高めることは,RPUFにとって極めて重要です.

研究の目的:

新型スパイロ型サイクリックフォスファゼン誘導体を開発する.
RPUFの熱絶縁と燃焼阻害性を同時に改善する.
RPUFの添加物としてのこれらのフォスファゼン誘導体の有効性を評価する.

主な方法:

50gのスケールでスパイロ型サイクリック・フォスファゼン誘導体 (PN-#s) の合成.
固体ポリウレタン泡にPN#を組み込み,重量5%の負荷で
熱伝導性と燃焼阻害性の評価 (制限酸素指数)

主要な成果:

PN-#は高い熱安定性と炭化促進能力を発揮した.
PN-#sの重量5%を組み込むと,低熱伝導性が維持される (λ = 25 mW/m·K).
28.3%という高限酸素指数が達成され,燃焼阻害性が向上したことを示した.

結論:

スパイロ型サイクリック・フォスファゼンの誘導体は,RPUFの効果的な多機能添加物です.
これらの添加物は同時に熱絶縁と燃焼阻害性を高めます.
エネルギー効率が向上した,より安全な建物の断熱材料の可能性

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