TY - JOUR
T1 - Effect of hyperbranched poly (amine-ester) grafted nano-SiO2 on reinforcement and toughness of PVC
AU - Li, Jie
AU - Zhao, Hui
AU - Sun, Rui Min
AU - Luo, Yun Jun
PY - 2008/3
Y1 - 2008/3
N2 - Nano-SiO2 was modified using silane coupling agent (KH-550) and hyperbranched poly (amine-ester) respectively, and Poly(vinyl chloride) (PVC)/modified nano-SiO2 composites were made by melt-blending. The composites' structures and mechanical properties were characterized by transmission electron microscopy (TEM), sanning electronic microscopy (SEM) and electronic universal testing machine. The results show that nano-SiO2 grafted by hyperbranched poly (amine-ester) increases obviously in dispersion in PVC matrix, and mechanical properties of PVC are effectively improved. Moreover, it was found that mechanical properties of PVC/nano-SiO2 composites reach the best when weight percent of nano-SiO2 in PVC matrix is 1%. Compared with crude PVC, the tensile strength of hyperbranched poly (amine-ester) grafted nano-SiO2/PVC composite increases by 24.68% and its break elongation, flexural strength and impact strength increase by 15.73%, 4.07% and 1841.84%, respectively. Moreover, the processing of the composites is improved.
AB - Nano-SiO2 was modified using silane coupling agent (KH-550) and hyperbranched poly (amine-ester) respectively, and Poly(vinyl chloride) (PVC)/modified nano-SiO2 composites were made by melt-blending. The composites' structures and mechanical properties were characterized by transmission electron microscopy (TEM), sanning electronic microscopy (SEM) and electronic universal testing machine. The results show that nano-SiO2 grafted by hyperbranched poly (amine-ester) increases obviously in dispersion in PVC matrix, and mechanical properties of PVC are effectively improved. Moreover, it was found that mechanical properties of PVC/nano-SiO2 composites reach the best when weight percent of nano-SiO2 in PVC matrix is 1%. Compared with crude PVC, the tensile strength of hyperbranched poly (amine-ester) grafted nano-SiO2/PVC composite increases by 24.68% and its break elongation, flexural strength and impact strength increase by 15.73%, 4.07% and 1841.84%, respectively. Moreover, the processing of the composites is improved.
KW - Dispersion and stability
KW - Hyperbranched poly (amine-ester)
KW - Nano-SiO
KW - One-step polycondensation
UR - http://www.scopus.com/inward/record.url?scp=42449140760&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:42449140760
SN - 1004-0579
VL - 17
SP - 104
EP - 108
JO - Journal of Beijing Institute of Technology (English Edition)
JF - Journal of Beijing Institute of Technology (English Edition)
IS - 1
ER -