摘要
采用一步法合成不同代数的超支化聚(胺-酯),测试不同温度下的黏度变化,并对其结构用傅里叶变换红外光谱仪(FT-IR)进行了初步表征。以所合成的不同代数的超支化聚(胺-酯)改性环氧树脂,测试其冲击强度与弯曲性能,采用扫描电镜对冲击断口进行了表征。结果表明,不同代数的超支化聚(胺-酯)的黏度随温度升高而下降,超支化聚(胺-酯)与环氧树脂相容性好,代数越高,增韧效果越显著,弯曲强度和弯曲模量下降也越明显,冲击断口表现出明显的韧性断裂的特征。
The synthesis of different generations of hyperbranched poly（amine-ester） （HBP） based on one step proceeding is described. The structure was studied by FI - IR. For the epoxy with different content and different generation of HBP samples,the impact and bend properties were tested. The impact surface was studied by SEM. As a resuit, the viscosity of different generation HBP decreases with temperature increasing. The higher generation is, the more toughness increase. In the meantime, the bend properties decrease with the content and generation of HBP increasing. The impact surface possessed toughness character.
出处
《宇航材料工艺》
CAS
CSCD
北大核心
2009年第2期42-45,共4页
Aerospace Materials & Technology
关键词
超支化聚合物
环氧树脂
增韧剂
Hyperbranched poly（ amine-ester）, Epoxy resin, Toughness
