Preparation and Characterization of Polyurethane Doped with Nano-sized SiO2 Derived from Sol-Gel Process

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

Jun Shen¹  Zhihua Zhang¹  Guangming Wu¹ 

[1] Pohl Institute of Solid State Physics, Tongji University

关键词: Polyurethane Resin;    SiO2;    Sol-Gel Process;    Nano-Composite;    Mechanical Properties;   

DOI  :  10.1252/jcej.36.1270

来源: Maruzen Company Ltd

【 摘 要 】

References(14)Cited-By(3)Nano-sized SiO2 particles were prepared via the sol-gel process, and evenly dispersed in the polyurethane resin. The tensile strength and 100% modulus of the polyurethane doped with SiO2 were increased and the content of SiO2 has an optimum value. Elongation at break had a downtrend at first and an ascending trend afterward with the increase of SiO2. The addition of nano-sized SiO2 not only increased the storage modulus but also improved the peak of tan δ of the polymer. Nano-sized SiO2 hardly affected the low temperature-resistant properties, but improved the heat-resistant properties of the resin.

【 授权许可】

Unknown