摘要
采用特定的合成工艺合成了不同硼含量的改性酚醛树脂,并利用傅里叶红外光谱、热重分析和冲击试验等方法对其性能进行了分析.结果表明:合成出了不同硼含量的改性酚醛树脂,通过红外吸收峰对比法和计算法对比确定了硼含量,合成的硼改性酚醛树脂硼的最高质量分数可达9.0%;硼改性酚醛树脂的耐热性随硼含量的增加而提高,高硼含量的样品在1 200℃时的失重率仅为34.7%,残炭率高达65.3%;硼的引入提高了酚醛树脂的韧性.随着硼含量的增加,改性酚醛树脂的冲击韧性提高,但当硼质量分数过高时(9.0%),其冲击韧性有所下降.
Boron modified phenolic resins （BMPR） with different boron contents were synthesized with a special synthesis technology. The properties of BMPR were analyzed by Fourier transform infrared spectra （FTIR）, thermogravimetric analysis and the impact test. The results show that BMPRs with different boron contents are synthesized and the highest boron content in BMPR is 9.0 % obtained from the comparison of FTIR absorption peaks and the calculation methods. Heat resistance of BMPRs increases with the incresing of boron content. The losing weight of the sample with the highest boron content is only 34.7 % and carbon yield ratio is 65.3 % in 1 200 ℃. Impact strength of BMPR is higher than that of phenolic resin without boron. And it increases with the increasing of boron content, but decreases slightly with 9.0 % boron content.
出处
《同济大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2007年第3期381-384,共4页
Journal of Tongji University:Natural Science
关键词
改性酚醛树脂
硼
傅里叶变换红外光谱
耐热性
冲击强度
modified phenolic resin
boron
Fourier transform infrared spectra
heat resistance
impact strength
