摘要
由季戊四醇改性得到的一种成炭剂(CA)与无卤膨胀型阻燃体系(IFR)复配,通过红外光谱(FT-IR)、热重分析(TG)、锥形量热分析、扫描电镜(SEM)和拉曼光谱(Raman Spectra)研究其阻燃玻璃纤维增强聚丙烯(GF-PP)的效果和阻燃机理。结果表明,添加CA能显著提高GF-PP/IFR体系的阻燃性能,CA添加的质量分数为1%时,GF-PP阻燃效果(UL-94)达到V-0级,极限氧指数(LOI)可以达到27.9;FT-IR、拉曼光谱图和SEM照片表明,在GF-PP/IFR体系中CA能提高残留炭的石墨含量和炭层结构的致密性。
A charring agent （CA） was prepared by modifying pentaerythritol（PER）, then it was mixed with the intumescent flame retardant（IFR）for glass fiber-polypropylene（GF-PP）. The flame resistance and flame-retardant mechanism were studied by Fourier transform infrared spectrometer （FT-IR）, thermogravimetry （TG）, cone calorimetry analysis, scanning electron microscope （SEM） and Raman spectroscopy. The results indicate that with an addition of 1% CA to GF-PP/IFR system, UL-94 of GF-PP/IFR system can achieve V-0, the limiting oxygen index （LOI） can reach 27.9. The flame-retardant mechanism of CA is that CA can increase the graphitization content and compactness of GF-PP/IFR system proved by FT-IR, Raman spectra and SEM photos.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
2013年第12期180-184,共5页
Polymer Materials Science & Engineering
关键词
玻纤
聚丙烯
膨胀型阻燃体系
季戊四醇
成炭剂
glass fiber
polypropylene
intumescent flame retardant
charring agent
pentaerythritol
