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Effects of nano-filler on the Thermal and Fire-Resistant Properties of Ethylene-Vinyl Acetate Copolymer

Journal of Beijing Institute of Technology 2010年第2期19卷 237-240页

作者：杜建新郝建薇崔艳霞 National Laboratory of Flame Retardant Materials Beijing Institute of Technology Beijing Add-Tech Consulting Company Limited

Sepiolite （S9, B10, B20, B40） and boehmite have been added to an intumecent flame retardant （IFR） system to produce the halogen-free and fire-resistant ethylene-vinyl acetate copolymer （EVM） rubber. The rubber contains ammonium polyphosphate （APP） as acid source, double pentaerythritol （D-PER） as carbon source and melamine （MN） as gas source. The effects of nano-filler sepiolite and boehmite on the fire-resistant property of EVM rubber based on IFR system were investigated. The test results show that the system with nano-filler of sepiolite B10 has the best fire-resistant property. The process of smoke emission and thermal decomposition, the element composition of char surface and the micro morphology of intumecent char layer of the EVM IFR system with nano-filler were also studied by NBS chamber, thermogravimetric （TG） analysis, X- ray photoelectron spectroscopy （XPS） and scanning electron microscope （SEM）.

关键词： ethylene-vinyl acetate copolymer (EVM) sepiolite boehmite nano-filler intumecent flame retardant (IFR)

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Effect of nano-filler on Structural and Ionic Transport Properties of Plasticized Polymer Electrolyte

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Open Journal of Organic Polymer Materials 2012年第2期2卷 38-44页

作者： Poonam Sharma Dinesh Kumar Kanchan Nirali Gondaliya Department of Engineering Physics Shri S’Ad Vidya Mandal Institute of Technology Bharuch India Physics Department Faculty of Science The M. S. University of Baroda Vadodara India

Polymer blend electrolytes, where PEO-PMMA polymer blend is used as polymer host matrix, doped with AgNO3 and plasticized with ethylene carbonate (EC) and Al2O3 as nano-filler were synthesized using the solution cast techniques. The polymer films were characterized by impedance spectroscopy, XRD, DSC, SEM, FT-IR and ionic transport mea-surements. The results indicate an enhancement in conductivity of PEO-PMMA-AgNO3-EC polymer electrolytes. The ionic conductivity of the polymer films is also found to increase with temperature. Electrical properties of polymer films in the framework of dielectric and modulus formalism are studied and

关键词： nano-filler XRD SEM Impedance

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Effect of nano-fillers on Conductivity of Polyethylene/Low Melting Point Metal Alloy Composites

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Chinese Journal of Polymer Science 2015年第3期33卷 371-375页

作者： Gang Chen Xiao-hong Zhang 乔金樑 College of Materials Science and Engineering Beijing University of Chemical Technology SINOPEC Beijing Research Institute of Chemical Industry

A novel method for preparing conductive polyethylene （PE） composites has been developed. In the method, the powder of low melting point metal alloy （LMPA） is filled into the PE matrix by using twin screw extruder at a temperature below the melting point of the LMPA, and followed by a die drawing process at a temperature around the melting point of the metal alloy. It has been found that die drawing process, repeating the die drawing process and adding nano-fillers, such as montmorillonite （MMT） and multi-wall carbon nanotubes （MWCNTs）, all help reduce the metal particle size in the PE matrix, thus improve the conductivity of the composite. The conductivity improvement is attributed to an increased number of the smaller metal particles. Therefore, conductive composites of polymer/metal alloy/nano-filler with high conductivity are possible to be prepared by using the new method.

关键词： Conductive composites nano-filler Metal alloy.

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