Rong Zhang

Hubei University of Technology | HUT · Department of Materials and Chemical Engineering

The melt strength of poly(lactic acid) (PLA) is an important factor in preparing foams and blowing films. Aiming to endow PLA with a suitable melt strength via a slight crosslink, a superficial micro-crosslinking method was introduced in which the PLA feed was mixed with benzoyl peroxide (BPO) and crosslinked in a 100 °C oven for 1 h. Additionally,...

Highly conductive graphite/acrylonitrile–butadiene–styrene copolymer (ABS) composites were prepared via foaming with supercritical carbon dioxide (scCO2), followed by de-foaming with an open mixing mill. This processing technique decreased the direct current resistivity of the composites by about 1 order of magnitude. The alternating current (AC) r...

Phosphoric acid doped polybenzimidazole membranes with good electrochemical properties at high temperature have been under increasing study in recent years for application in high temperature polymer electrolyte membrane fuel cell (HT-PEMFC). The disadvantages associated with these types of membranes include reduced proton conductivity due to acid...

Thermoplastic polyurethane foam beads (ETPU) have attracted attention of researchers in recent years due to their wide use in industrial applications. In this study, a small amount of acrylonitrile-butadiene-styrene copolymer (ABS) was blended with TPU under the assistance of dicumyl peroxide (DCP) and maleic anhydride (MAH) to improve the cell mor...

Expanded polypropylene (EPP) beads have attracted attention in recent years due to their potential use in fabricating complex, three dimensional structures. In this study, a small amount of polypropylene (PP) with a higher melting temperature (HPP) was blended with low melting point PP (LPP) to regulate the cell morphology and thermal behavior peak...

The electrical percolation mechanism is the fundamental for polymer based conductive composites. In order to explain the electrical percolation behavior, the AC impedance and equivalent circuit were used to discuss electrical properties of polyethylene/carbon nanotubes (PE/CNTs) composites at room temperature. Composites of CNTs filled with high de...

The electrical properties and rheology for polymer based conductive composites were investigated, in which acrylonitrile-butadiene-styrene copolymer (ABS) and polyvinylidene fluoride (PVDF) were used as the matrix and stainless steel fibers (SSF) and graphite were used as conductive fillers, and the SSF-graphite/ABS-PVDF conductive composites were...

Expended polypropylene (EPP) was prepared through autoclave foaming process, using CO2 as blowing agent. The influence of foaming temperature (Tf) and foaming pressure (pf) on melting/crystallization behavior and foaming properties of EPP were investigated by DSC and SEM. The results indicate that the double melting peaks of EPP move to higher temp...

Phosphoric acid doped polybenzimidazoles are among the most interesting proton exchange membrane materials for high temperature proton exchange membrane fuel cell applications. As a major challenge the proton conducting decline due to free phosphoric acid leaching during the long term fuel cell operation is addressed by fixing overmuch phosphoric a...

Magnesium (Mg)-doped Fe3O4 nanoparticles represented as MgxFe3-xO4 (0 < x ≥ 1) were analyzed in comparison with zinc (Zn)-doped Fe3O4, ZnxFe3-xO4. Magnetization versus applied magnetic field for MgxFe3-xO4 particles provided the maximum saturation magnetization (Ms) with 69.37 emu/g at x = 0.1 as superparamagnetism, while the Ms by Zn-doping was 80...