As basic research for higher toughness of the polymer material, based on the constrained strain relief concept under large deformation, high-speed impact, the use of rheological measurements, morphology observation, and high strength X-ray typified by Spring-8 situ analysis techniques into the process, and performs to study and elucidation of the mechanism and tough of fracture mechanism using molding techniques. Moreover, taking advantage of the molding technology is also a feature of our research group, we study the processing technology of a thin film that excellent in heat resistance. Especially, to perform development of the nano-nonwoven fibers by melt-electrospinning, the development of processing technology using such as an ultra high molecular weight, polymer blending, and utilizing of supercritical fluid. As well known, it difficult to conduct high stretching on the polymeric material, due to the number and entanglement of the polymer that depending upon its orientation, crystallization of the molecular chain, and changing the distribution of entanglement points in the molecular chains under flowing. Although homogeneity is considered to be important, these effects are difficult understood. Also, the structure control by nano-alloy of a blend of polyamide and slide ring polymers, relationships such as melt extrusion conditions and the optimum mixing ratio of the ring dynamic polymer is usually undecided. To elucidation, we conducted the research by extracting to various research as follow.
