摘要
针对聚酯材料耐水性、耐高温及耐黄变性能差等问题,本研究选用不同官能度的硅烷单体,通过水解共聚制备耐高温甲基苯基硅树脂中间体,并研究了有机基团与硅原子之比对其耐高温性能的影响。进一步将中间体用于聚酯改性,得到甲基苯基硅树脂改性聚酯,通过红外确定其结构。结果表明,随着有机硅含量的增加,改性聚酯的疏水性能增加,硬度等级可达到3H,附着力等级提升到0级,800℃时碳残留量提升到39%。此外,改性聚酯涂层在260℃热处理1 h后未发生黄变现象,表明其在不粘锅、空气炸锅等炊具表面涂层中具有重要的应用潜力。
In view of the problems of poor water resistance,high temperature resistance and weak yellowing resistance of polyester materials,different functional silane monomers were selected to prepare a high-temperature-resistant phenyl silicone resin intermediate through hydrolytic copolymerization in this study.The influence of the ratio of organic groups to silicon atoms on its high-temperature performance was investigated.The intermediate was further used for polyester modification to obtain methyl phenyl silicone-modified polyester,and its structure was confirmed using infrared spectroscopy.The results showed that with an increase in silicone content,the hydrophobic performance of the modified polyester improved,the hardness reached 3H,adhesion improved to grade 0,and the carbon residue at 800℃increases to 39%.Furthermore,the modified polyester coating showed no yellowing after being heat treated at 260℃for 1 h,indicating significant application potential on cookware surfaces such as non-stick pans and air fryers.
作者
孟凡栋
曹政
申雅坤
王怡雪
屈亚平
詹晓力
张庆华
MENG Fandong;CAO Zheng;SHEN Yakun;WANG Yixue;QU Yaping;ZHAN Xiaoli;ZHANG Qinghua(Institute of Zhejiang University-Quzhou,Quzhou 324000,China;College of Chemical and Biological Engineering,Zhejiang University,Hangzhou 310058,China;Transfar Zhilian Company Limited,Hangzhou 311215,China)
出处
《化学反应工程与工艺》
2025年第4期495-502,533,共9页
Chemical Reaction Engineering and Technology
基金
浙江大学衢州研究院科技攻关项目(IZQ2023KJ2006)
衢州市科技攻关项目(2023K070)。
关键词
有机硅
聚酯
耐热性能
耐黄变性能
silicone
polyester
heat resistance
yellowing resistance
