摘要
为了进一步提高苯酚-4,4′-二氨基二苯甲烷型苯并噁嗪(P-ddm)的耐热性能,采用溶剂法将生物基呋喃树脂与P-ddm进行共混。凝胶化时间和差示扫描量热法(DSC)表征共混体系的聚合反应行为。结果表明,呋喃树脂的加入可以降低共混体系的起始固化温度,使得固化反应更加容易进行;傅里叶红外光谱(FTIR)表征呋喃树脂加入对共混体系的化学结构的影响;热重分析(TG)和动态热机械分析(DMA)表征了共混体系的耐热性能,结果表明,呋喃树脂的加入可以提高共混体系的残炭率、交联密度和玻璃化转变温度(T_(g)),其中P(P-ddm/呋喃-10)体系在800℃残炭率达到了59.4%,P(P-ddm/呋喃-40)的玻璃化转变温度相较于P(P-ddm)提高了22℃。
In order to improve the heat-resisting property of phenol-4,4′-diaminomethane benzoxazine(P-ddm),bio-furan resin was mixed with P-ddm by solvent method.Firstly,the gelation time and differential scanning calorimetry(DSC)were used to characterize the polymerization behavior of P-ddm and P-ddm/furan resin mixtures.The results show that the addition of furan resin could reduce the initial curing temperature and improve curing reaction.Fourier transform infrared spectroscopy(FTIR)is used to characterize the effect of adding furan resin on the chemical structure of P-ddm and P-ddm/furan resin mixtures.The heat resistance properties of the cured mixtures are characterized with the thermogravimetric analysis(TG)and dynamic mechanical analysis(DMA).The results demonstrate that the addition of furan resin can improve the char yield,crosslinking density and glass transition temperature(T_(g))of the cured mixtures.The P(P-ddm/furan-10)exhibits a high char yield(59.4% at 800℃),and the T_(g) of P(P-ddm/furan-40)increases by 22℃ comparing with P(P-ddm).
作者
赵星宇
夏益青
郭琪琪
石锐
刘淋泽
王炼
颜帅
盛玉萍
李新跃
ZHAO Xingyu;XIA Yiqing;GUO Qiqi;SHI Rui;LIU Linze;WANG Lian;YAN Shuai;SHENG Yuping;LI Xinyue(College of Materials Science and Engineering,Sichuan University of Science and Engineering,Zigong 643000,China;Material Corrosion and Protection Key Laboratory of Sichuan Province,Zigong 643000,China)
出处
《塑料工业》
CAS
CSCD
北大核心
2022年第7期132-136,149,共6页
China Plastics Industry
基金
四川省科技厅重点研发项目(2018GZ0336)
材料腐蚀与防护四川省重点实验室开放基金(2019CL09,2020CL14)
自贡市重点科技计划项目(2019YYJC21)
四川轻化工大学研究生创新基金资助项目(y2020034,y2020042)。
关键词
苯并噁嗪
呋喃树脂
共混改性
Benzoxazine
Furan Resin
Blend Modification
