Nantong Bubbfil Nanotechnology Company Ltd

Nantong, China

Nantong Bubbfil Nanotechnology Company Ltd

Nantong, China
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Zhao L.,Yancheng Institute of Technology | Zhao L.,Nantong Bubbfil Nanotechnology Co.
Thermal Science | Year: 2016

The natural protein, egg albumen, is used for fabrication of nanoporous mats by bubbfil electrospinning. In our experiment, starch is used as an additive. By suitable choices of the spinning conditions, a mat with nanopores can be produced, and the spinning process is tenable by controlling the thermodynamic properties of spun solution and spinning environment.


Zhao L.,Yancheng Institute of Technology | He Y.-F.,Yancheng Institute of Technology | Wang Q.-W.,Yancheng Institute of Technology | He C.-H.,Soochow University of China | He C.-H.,Nantong Bubbfil Nanotechnology Co.
Thermal Science | Year: 2016

Composite silk fibroin/chitosan nanofiber membrane was fabricated by bubbfil electrospinning. The influence of chitosan content on composite membrane's microstructure, mechanical property, and the percentage of water-dissolved were studied experimentally. The result indicated that the crystallinity of electrospun membrane was enhanced by increasing chitosan concentration. It is noteworthy that the percentage of water-dissolved was the minimum when the weight ratio of silk fibroin/chitosan was 70:30. After the composite membrane treated by the methanol, the percentage of water-dissolved of the nanofiber membrane decreased significantly. The strength and elongation at break of composite membrane increased gradually with the increased content of chitosan. Additionally, the electrospun silk fibroin/chitosan membrane showed excellent antibacterial property.


Shen J.,Soochow University of China | He C.-H.,Nantong Bubbfil Nanotechnology Company Ltd | Liu H.,Yancheng Institute of Technology | Zhao L.,Yancheng Institute of Technology
Thermal Science | Year: 2015

This paper explores the influence of pore size on gas resistance by comparing micron non-woven and nanofiber membrane.The result shows that membrane with a higher filtration and lower gas resistance can be received by controlling the pore size of nanofiber membrane.


Ning C.-J.,Soochow University of China | Liu H.,Yancheng Institute of Technology | Si N.,Nantong Bubbfil Nanotechnology Company Ltd | He J.-H.,Soochow University of China
Thermal Science | Year: 2015

The PVA/ZnO nanofibers are obtained by the bubbfil spinning. Distribution of fiber size is tenable by nano-ZnO concentration. Experiment reveals fiber size distribution changes from Gaussian distribution to Poisson distribution when ZnO concentration varies gradually from 2wt.%to15wt.%.


Liu L.,Soochow University of China | Zhao L.,Yancheng Institute of Technology | LIi X.-W.,Nantong Bubbfil Nanotechnology Company Ltd | He J.-H.,Soochow University of China
Thermal Science | Year: 2015

A polymer bubble is easy to be broken under a small external force, various different fragments are formed, which can be produced to different morphologies of products including nanofibers and plate-like strip. Polyvinyl-alcohol/honey solution is used in the experiment to show hierarchical structure by the bubbfil spinning.


Liu P.,Soochow University of China | Cai J.-J.,Nantong Bubbfil Nanotechnology Company Ltd | ZhaO L.,Yancheng Institute of Technology | He J.-H.,Soochow University of China
Thermal Science | Year: 2015

Bubbfil spinning is used to fabricate micro/nanofibers with hierarchical structure. The wall of a polymer film is attenuated unevenly by a blowing air. The burst of the bubble results in film fragments with different thickness, as a result, different sizes of fibers are obtained.


Liu Z.,Soochow University of China | He C.-H.,Nantong Bubbfil Nanotechnology Company Ltd | Zhang S.-Z.,Yancheng Institute of Technology | Zhao L.,Yancheng Institute of Technology
Thermal Science | Year: 2015

Beaded fibers are often observed in electrospinning. However, its formation mechanism is not well understood. A mathematical model for pulsation of the charged jets during spinning is proposed to reveal the phenomenon of beaded fibers, andthe main factors for beaded fibers are elucidated.


Li Y.,Soochow University of China | Li X.-W.,Soochow University of China | Li X.-W.,Nantong Bubbfil Nanotechnology Company Ltd | He J.-H.,Soochow University of China | And 2 more authors.
Thermal Science | Year: 2014

Phase change materials for thermal energy storage have been widely applied to clothing insulation, electronic products of heat energy storage. The thermal storage potential of the nanofiber membranes was analyzed using the differential scanning calorimetry. Effect of microstructure of the membrane on energy storage was analyzed, and its applications to electronic devices were elucidated.


Liu H.Y.,Zhongyuan University of Technology | Liu H.Y.,Soochow University of China | Si N.,Nantong Bubbfil Nanotechnology Company Ltd | He J.-H.,Zhongyuan University of Technology | He J.-H.,Soochow University of China
International Journal of Numerical Methods for Heat and Fluid Flow | Year: 2016

Purpose - The purpose of this paper is to point out a paradox in variational theory for viscous flows. Chien (1984) claimed that a variational principle of maximum power loses for viscous fluids was established, however, it violated the well-known Helmholtz's principle. Design/methodology/approach - Restricted variables are introduced in the derivation, the first order and the second order of variation of the restricted variables are zero. Findings - An approximate variational principle of minimum power loses is established, which agrees with the Helmholtz's principle, and the paradox is solved. Research limitations/implications - This paper focusses on incompressible viscose flows, and the theory can be extended to compressible one and other viscose flows. It is still difficult to obtain a variational formulation for Navier-Stokes equations. Practical implications - The variational principle of minimum power loses can be directly used for numerical methods and analytical analysis. Originality/value - It is proved that Chien's variational principle is a minimum principle. © Emerald Group Publishing Limited.


He C.-H.,Nantong Bubbfil Nanotechnology Company Ltd | Li X.-W.,Nantong Bubbfil Nanotechnology Company Ltd | Liu P.,Soochow University of China | Li Y.,Soochow University of China
Thermal Science | Year: 2015

Bubbfil spinning is used to fabricate PVA nanofibers. Multiple polymer bubbles are formed on the spinneret, and an external force is added to burst the bubbles immediately. The ejected jets are accelerated to a high velocity, and fiber diameter is tenable by adjusting the spinning parameters.

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