The Influence Factors Analysis to Improve the Compatibility and the Mechanical Behavior of IPN, Gradient IPN and BaTiO₃ Filled IPN

Yudi Guo, Dongyan Tang, Ying Wang

Department of Chemistry, Harbin Institute of Technology, Harbin, China.

DOI: 10.4236/msa.2012.39087                

Abstract

Interpenetrating polymer network (IPN), gradient IPN and BaTiO3 filled IPN, composed of poly(ethylene glycol urethane) (PEGPU) and unsaturated polyester resin (UP) curing at room temperatures were prepared. Then the effect of soft/hard segment ratio in polyurethane (PU), component ratio of PU to UP in IPN, adding amount of BaTiO₃ in filled IPN, the component sequences and interval times between each IPN for gradient IPN, on morphology and mechanical behavior of IPN and BaTiO₃/IPN nanocomposites with different molecular weight of PU were studied systematically. Moreover, the investigation on the relationship between the morphologies and the mechanical properties indicated that the IPN with finer morphology exhibited an excellent consistency of the higher strengths and elongations.

Keywords

Poly(ethylene Glycol Urethane) (PEGPU); Gradient Interpenetrating Polymer Networks (Gradient IPN); BaTiO₃; Morphology; Mechanical Property

Conflicts of Interest

The authors declare no conflicts of interest.

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