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Phenolic rigid organic filler/isotactic polypropylene composites. III. Impact resistance property

Heming LIN, Dongming QI, Jian HAN, Zhiqi CAI, Minghua WU

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 2,   Pages 176-181 doi: 10.1007/s11705-009-0203-8

Abstract: A novel phenolic rigid organic filler (KT) was used to modify isotactic polypropylene (iPP).was found that the brittle-ductile transition (BDT) of the PP/KT microcomposites took place at the fillercontent of about 4%, and the impact strength attains the maximum at 5% (with filler particles size ofIt was the filler particles that induced the plastic deformation of interparticles ligament and henceIt can be concluded that aside from the interparticle distance, the filler particles size also plays

Keywords： rigid organic filler     polypropylene     impact resistance    

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Dispersion of a novel phenolic rigid organic filler in isotactic polypropylene matrix by solution-mixing

Dongming QI, Xiaoli ZHAO, Zhijie CHEN, Peng HUANG, Jun CAO

Frontiers of Chemical Science and Engineering 2012, Volume 6, Issue 4,   Pages 395-402 doi: 10.1007/s11705-012-1269-2

Abstract: A novel phenolic rigid organic filler (named KD) with a high melting point was dispersed in an isotacticInfluences of MAPP and mixing methods on the filler dispersion were studied using polaried optical microscopeThe filler particles are always inclined to form large irregular aggregates in the iPP matrix due toHowever, an iPP/MAPP/KD (PMK) blend containing filler particles with a quasi-spherical shape (~97.8 nm

Keywords： dispersion     rigid organic filler     isotactic polypropylene     mixing    

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Influence of the filler materials on flux-free brazing of pure aluminium (1050)

Kirsten BOBZIN, Lidong ZHAO, Thomas SCHLAEFER, Thomas WARDA,

Frontiers of Mechanical Engineering 2010, Volume 5, Issue 1,   Pages 47-51 doi: 10.1007/s11465-009-0079-9

Abstract: In the present study, samples of pure aluminium (1050) were deposited by cold spraying with filler materialssuch as Al12Si, Al7Si, Al12Si-4%Cu, and the Al-Si-based filler material A, which was especially developedThe results show that the filler materials could be well deposited by cold spraying.The samples deposited with other filler materials could be brazed without fluxes.The joints of the samples deposited with the filler material showed the highest shear strength of 41&

Keywords： aluminium     flux-free brazing     cold spraying     shear strength    

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Phenolic rigid organic filler/isotactic polypropylene composites. I. Preparation

QI Dongming, YANG Lei, WU Minghua, LIN Heming, NITTA Kohhei

Frontiers of Chemical Science and Engineering 2008, Volume 2, Issue 3,   Pages 236-241 doi: 10.1007/s11705-008-0034-z

Abstract: A novel phenolic rigid organic filler (KT) was melt-mixed with an isotactic polypropylene (iPP) to prepareThe evolution of filler morphology during melt-mixing and melt-pressure processes was monitored by scanningThe influences of shear force, pressure time, filler content and MAPP concentration on the final fillerWe found that this rigid organic filler readily melted and dispersed homogenously into the iPP matrixDuring the melt-pressure process, parts of the filler particles combined gradually through a coalescence

Keywords： morphology     concentration     tendency     controllable     addition    

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Phenolic rigid organic filler/isotactic polypropylene composites. II. Tensile properties

QI Dongming, SHAO Jianzhong, WU Minghua, NITTA Kohhei

Frontiers of Chemical Science and Engineering 2008, Volume 2, Issue 4,   Pages 396-401 doi: 10.1007/s11705-008-0077-1

Abstract: A novel phenolic rigid organic filler (KT) was used to modify isotactic polypropylene (iPP).We found that the Young’s modulus of PP/KT specimens increased with filler content, while the yield andbreak of the specimens are related to the filler particles size.ultimate elongation of PP/KT specimens were close to those of unfilled iPP specimens when the maximal fillerm at 200 mm/min, close to that of glass bead but far more than those of other rigid inorganic filler

Keywords： maximal     uniaxial tensile     unfilled     excellent tensile     influence    

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Performance of a hybrid anaerobic-contact oxidation biofilm baffled reactor for the treatment of decentralized molasses wastewater

Minmin LIU,Ying ZHAO,Beidou XI,Li’an HOU,Xunfeng XIA

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 4,   Pages 598-606 doi: 10.1007/s11783-013-0576-2

Abstract: inoculation of anaerobic granule sludge in anaerobic compartments and the installation of combination filler

Keywords： combination filler     contact oxidation biofilm     food wastewater     anaerobic baffled reactor    

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Morphological and mechanical characterization of a PMMA/CdS nanocomposite

Vishal MATHUR, Manasvi DIXIT, K.S. RATHORE, N. S. SAXENA, K.B. SHARMA

Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 2,   Pages 258-263 doi: 10.1007/s11705-010-1014-7

Abstract: Thick film of poly(methyl methacrylate) (PMMA)/CdS nanocomposite have been synthesized by the solution casting process. The nanostructure of the CdS particles has been ascertained through the small angle X-ray scattering (SAXS) technique. The surface morphological characterization of the PMMA/CdS nanocomposite has been done through scanning electron microscopy (SEM) analysis. The variation of mechanical loss factor (Tan ) with temperature and tensile properties of prepared samples have been studied using Dynamic Mechanical Analyzer (DMA). This study reveals that the glass transition temperature ( ), Young’s modulus, and fracture energy of the PMMA/CdS nanocomposite are greatly influenced by the existence of interfacial energetic interaction between dispersed CdS nanoparticles and the matrix of PMMA.

Keywords： poly(methyl methacrylate) (PMMA)     filler nanoparticles     polymer semiconducting nanocomposite     tensile properties    

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Enhanced methane recovery and exoelectrogen-methanogen evolution from low-strength wastewater in an up-flow biofilm reactor with conductive granular graphite fillers

Zechong Guo, Lei Gao, Ling Wang, Wenzong Liu, Aijie Wang

Frontiers of Environmental Science & Engineering 2018, Volume 12, Issue 4, doi: 10.1007/s11783-018-1074-3

Abstract:

Methane yield increased 22 times from low-strength wastewater by applying conductive fillers.

Conductive fillers accelerated the start-up stage of anaerobic biofilm reactor.

Conductive fillers altered methanogens structure.

Keywords： Low-strength wastewater     Methane production     Conductive filler     Microbial community structure    

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Wide gap active brazing of ceramic-to-metal-joints for high temperature applications

K. Bobzin,L. Zhao,N. Kopp,S. Samadian Anavar

Frontiers of Mechanical Engineering 2014, Volume 9, Issue 1,   Pages 71-74 doi: 10.1007/s11465-014-0291-0

Abstract: Commonly used silver based active filler metals cannot fulfill these requirements, if application temperaturesDue to the high brazing temperatures and the low ductility of nickel based filler metals, the modificationof standard nickel based filler metals were necessary to meet the requirements of above mentioned applicationsstresses wide brazing gaps and the addition of Al2O3 and WC particles to the fillerIn this study, the microstructure of the brazed joints and the thermo-chemical reactions between filler

Keywords： wide gap     active brazing     nickel filler metals     high temperature application     WC     Al2O3   

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Ion conduction path in composite solid electrolytes for lithium metal batteries: from polymer rich to ceramic rich

Zhouyu ZHANG, Hao CHEN, Zhenglin HU, Shoubin ZHOU, Lan ZHANG, Jiayan LUO

Frontiers in Energy 2022, Volume 16, Issue 5,   Pages 706-733 doi: 10.1007/s11708-022-0833-9

Abstract: Solid-state electrolytes (SSEs) can address the safety issue of organic electrolyte in rechargeable lithium batteries. Unfortunately, neither polymer nor ceramic SSEs used alone can meet the demand although great progress has been made in the past few years. Composite solid electrolytes (CSEs) composed of flexible polymers and brittle but more conducting ceramics can take advantage of the individual system for solid-state lithium metal batteries (SSLMBs). CSEs can be largely divided into two categories by the mass fraction of the components: “polymer rich” (PR) and “ceramic rich” (CR) systems with different internal structures and electrochemical properties. This review provides a comprehensive and in-depth understanding of recent advances and limitations of both PR and CR electrolytes, with a special focus on the ion conduction path based on polymer-ceramic interaction mechanisms and structural designs of ceramic fillers/frameworks. In addition, it highlights the PR and CR which bring the leverage between the electrochemical property and the mechanical property. Moreover, it further prospects the possible route for future development of CSEs according to their rational design, which is expected to accelerate the practical application of SSLMBs.

Keywords： composite solid electrolytes     active filler/framework     ion conduction path     interphase compatibility    

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Recycling polymeric waste from electronic and automotive sectors into value added products

Abhishek Kumar, Veena Choudhary, Rita Khanna, Romina Cayumil, Muhammad Ikram-ul-Haq, Veena Sahajwalla, Shiva Kumar I. Angadi, Ganapathy E. Paruthy, Partha S. Mukherjee, Miles Park

Frontiers of Environmental Science & Engineering 2017, Volume 11, Issue 5, doi: 10.1007/s11783-017-0991-x

Abstract: The environmentally sustainable disposal and recycling of ever increasing volumes of electronic waste has become global waste management issue. The addition of up to 25% polymeric waste PCBs (printed circuit boards) as fillers in polypropylene (PP) composites was partially successful: while the tensile modulus, flexural strength and flexural modulus of composites were enhanced, the tensile and impact strengths were found to decrease. As a lowering of impact strength can significantly limit the application of PP based composites, it is necessary to incorporate impact modifying polymers such as rubbery particles in the mix. We report on a novel investigation on the simultaneous utilization of electronic and automotive rubber waste as fillers in PP composites. These composites were prepared by using 25 wt.% polymeric PCB powder, up to 9% of ethylene propylene rubber (EPR), and PP: balance. The influence of EPR on the structural, thermal, mechanical and rheological properties of PP/PCB/EPR composites was investigated. While the addition of EPR caused the nucleation of the β crystalline phase of PP, the onset temperature for thermal degradation was found to decrease by 8%. The tensile modulus and strength decreased by 16% and 19%, respectively; and the elongation at break increased by ~71%. The impact strength showed a maximum increase of ~18% at 7 wt.%–9 wt.% EPR content. Various rheological properties were found to be well within the range of processing limits. This novel eco-friendly approach could help utilize significant amounts of polymeric electronic and automotive waste for fabricating valuable polymer composites.

Keywords： E-waste     Polymer composites     Recycling     Rubber     Waste PCBs     Filler    

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Title Author Date Type Operation

Phenolic rigid organic filler/isotactic polypropylene composites. III. Impact resistance property

Heming LIN, Dongming QI, Jian HAN, Zhiqi CAI, Minghua WU

Journal Article

Dispersion of a novel phenolic rigid organic filler in isotactic polypropylene matrix by solution-mixing

Dongming QI, Xiaoli ZHAO, Zhijie CHEN, Peng HUANG, Jun CAO

Journal Article

Influence of the filler materials on flux-free brazing of pure aluminium (1050)

Kirsten BOBZIN, Lidong ZHAO, Thomas SCHLAEFER, Thomas WARDA,

Journal Article

Phenolic rigid organic filler/isotactic polypropylene composites. I. Preparation

QI Dongming, YANG Lei, WU Minghua, LIN Heming, NITTA Kohhei

Journal Article

Phenolic rigid organic filler/isotactic polypropylene composites. II. Tensile properties

QI Dongming, SHAO Jianzhong, WU Minghua, NITTA Kohhei

Journal Article

Performance of a hybrid anaerobic-contact oxidation biofilm baffled reactor for the treatment of decentralized molasses wastewater

Minmin LIU,Ying ZHAO,Beidou XI,Li’an HOU,Xunfeng XIA

Journal Article

Morphological and mechanical characterization of a PMMA/CdS nanocomposite

Vishal MATHUR, Manasvi DIXIT, K.S. RATHORE, N. S. SAXENA, K.B. SHARMA

Journal Article

Enhanced methane recovery and exoelectrogen-methanogen evolution from low-strength wastewater in an up-flow biofilm reactor with conductive granular graphite fillers

Zechong Guo, Lei Gao, Ling Wang, Wenzong Liu, Aijie Wang

Journal Article

Wide gap active brazing of ceramic-to-metal-joints for high temperature applications

K. Bobzin,L. Zhao,N. Kopp,S. Samadian Anavar

Journal Article

Ion conduction path in composite solid electrolytes for lithium metal batteries: from polymer rich to ceramic rich

Zhouyu ZHANG, Hao CHEN, Zhenglin HU, Shoubin ZHOU, Lan ZHANG, Jiayan LUO

Journal Article

Recycling polymeric waste from electronic and automotive sectors into value added products

Abhishek Kumar, Veena Choudhary, Rita Khanna, Romina Cayumil, Muhammad Ikram-ul-Haq, Veena Sahajwalla, Shiva Kumar I. Angadi, Ganapathy E. Paruthy, Partha S. Mukherjee, Miles Park

Journal Article