摘要
采用萘酚对酚醛树脂进行改性,成功合成了环保型萘酚改性酚醛树脂。采用傅里叶红外光谱、热失重等方法对萘酚改性酚醛树脂的结构和耐热性进行了研究,并通过Kissinger法和Flynn-Wall-Ozawa法对其热分解动力学参数进行了计算。结果表明,萘酚改性酚醛树脂的热分解过程分为2个阶段,萘酚改性后酚醛树脂的耐热性提高;当萘酚的质量分数为10%时,萘酚改性酚醛树脂的综合性能最好,拉伸强度、弯曲强度和冲击强度分别提高了2.46倍、1.62倍和1.34倍,体积电阻率和表面电阻率均达到1014数量级。
Phenolic resin was modified with naphthol forming an environmentally friendly material. The structure and heat resistance of naphthol midified phenolic resin were studied using Fourier transform infrared spectroscopy and thermogravimetry, and the kinetic parameters of thermal degradation were calculated with Kissinger and Flynn Wall-Ozawa methods. The thermal degradation of naphthol modified phenolic resin could be divided into two stages. The modification with naphthol improved the heat resistance of phenolic resin. When the mass fraction of naphthol was 10%, the tensile, flexural and impact strengths increased by 2. 46, 1.62 and 1.34 times based on neat phenolic resin, respectively. Meanwhile, the volume and surface resistances reached orders of 10^14.
出处
《中国塑料》
CAS
CSCD
北大核心
2011年第4期50-54,共5页
China Plastics
关键词
萘酚
酚醛树脂
改性
热分解动力学
耐热性
naphthol
phenolic resin
midifieation
thermal decomposition kinetics
heat resistance
