發(fā)布時間：2018-12-17 09:19

【摘要】：采用棕櫚酸和癸酸兩種有機相變材料改性甘油,探索其閃點溫度、流變性能、熱重性能及鍵合結(jié)構(gòu)的變化特征,從相變、氫鍵方面分析變化產(chǎn)生的機理。棕櫚酸的質(zhì)量分?jǐn)?shù)分別為2%、4%、8%,癸酸的質(zhì)量分?jǐn)?shù)分別為4%、8%、16%。摻入4%的棕櫚酸后,棕櫚酸/甘油的閃點溫度提高至187℃;而摻入8%的癸酸后,癸酸/甘油的閃點溫度降至142℃。二者均可提高甘油的表面張力和黏度。熱重/差式掃描量熱(TG/DSC)結(jié)果表明,摻入棕櫚酸可提高甘油的失重開始溫度、終止溫度和吸熱峰的峰谷溫度;紅外光譜(FT-IR)結(jié)果證實棕櫚酸和癸酸均未與甘油發(fā)生酯化反應(yīng)形成酯類物質(zhì),表明棕櫚酸能有效提高甘油的安全性能。
[Abstract]:Glycerol was modified by palmitic acid and sebacic acid. The change characteristics of flash point temperature, rheological property, thermogravimetric property and bonding structure of glycerol were investigated. The mechanism of the change was analyzed from the aspects of phase transition and hydrogen bond. The mass fraction of palmitic acid is 2 and that of decanoic acid is 4. The flash point temperature of palmitic acid / glycerol increased to 187 鈩，

本文編號：2384012