摘要
采用ＴＧＡ 研究了稀土化合物对聚丙稀的热稳定作用． 通过电镜观察了经铬酸蚀刻的ＰＰ球晶在不同稀土化合物含量下的变化． 用Ｘ 射线衍射法比较了加入稀土化合物前后ＰＰβ结晶峰及结晶度的变化． 结果表明， 在ｗ （ＰＰ） ／ ｗ （ＲＥＣ） ＝ １００／１－０ ～１００／２－０ 范围内， ＰＰ热稳定性较好．
Thermostabilty of PP with rare earth compound(REC) was studied by TGA. Morphologies of etched PP/REC samples were also observed. Comparsion of β crystal peak on XRD spectra between PP and PP/REC was made. It was found that the thermostability of PP could be improved by REC. When the composition fell into the range of PP/REC=100/1 0～100/2 0, the samples had higher 5% weight lost temperature than others. Results from XRD spectra showed that REC could increase the crystallinity of PP.
出处
《中山大学学报（自然科学版）》
CAS
CSCD
北大核心
1999年第5期121-123,共3页
Acta Scientiarum Naturalium Universitatis Sunyatseni
