Dissertation > Excellent graduate degree dissertation topics show
Study on Flame Retared EVA
Author: WangChangChun
Tutor: ZhangJun
School: Qingdao University of Science and Technology
Course: Polymer Chemistry and Physics
Keywords: EVA intercalation composite cone calorimeter flame retardant cable
CLC: TB383.1
Type: Master's thesis
Year: 2006
Downloads: 404
Quote: 4
Read: Download Dissertation
Abstract
|
The flame retardant properties of EVA with new-style intercalation nanocomposites and conventional flame retardant were studied using the cone calorimeter and LOI techniques. The aim is to discuss applicable e retardant techniques in cable product and relevant mechanism.The XRD analyses show that positive ion exchanges react between sodium-montmorillonite(Na~+-MMT) and organic ammonium salt. Then the spacing between the layers of Na~+-MMT was expanded to form organic montmorillonite(OMMT). EVA and OMMT can form nanocomposites by melt intercalation. A higher OMMT content does not have effect on layer construction. EVA and MMT can not form nanocomposites directly.The microcosmic configurations of surface and transect of the EVA/OMMT burnt char are observed by SEM. The shape of silicate layers are clear and can be a barrier to combustion.The cone calorimeter is used to measure the flammability parameters. The heat release rate(HRR) show that EVA/OMMT has a much lower HRR compared to EVA and EVA/MMT. The effective heat of combustion(EHC) of EVA/OMMT is also lower than that of EVA. EVA and MMT can not form intercalation composites. The mass change curves show that the mass retain rate is higher of that of EVA/MMT and EVA/OMMT in the early combustion stage due to the volatilization of the ammonium salt and impurities. Along with the combustion, the mass
|
Related Dissertations
- Study on the Echo Processing Method for the Measurement of Wire Length Based on Pulsereflection,TM247
- Synthesis and Application of halogen-free pairs of the phosphate ester flame retardants,TQ314.248
- The Degradation of PET to Synthesize Phosphate Flame Retardants and the Study of Their Flame-retardant Performance,TQ314.248
- Synthesis and Application of New Halogen-free Flame Retardant Cotton with Expandable Anti-wrinkle Agent PNX,TQ314.248
- Synthesis and Application of multi - ring phosphine (phosphorus) ester flame retardants,TQ314.248
- Large and complex line bundle automated calculation software development,TP311.52
- The Study of the EVA-based Compensation Incentive in State-owned Enterprise,F276.1
- Performance Evaluation of the EVA - oriented listed companies,F224
- Surface Modification of Magnesium Hydroxide Nano-particles and Its Application in Flame Retardant Polypropylene Composites,TB383.1
- Research on Solutions of Applying EVA Performance Evaluation System into Local Grid Corporate,F406.72
- Distributed temperature sensing technology in the cable temperature monitoring,TM930.12
- Conductor Temperature Monitoring and Rating Estimation for 220kV Tunnel Cables,TM247
- Research and Application of Digital Measurement-Control Circuit for the Substation Secondary,TM76
- The Study of Cable’s Temperature Monitoring Systm Using Distributed Fiber Bragg Grating Based on ARM,TM247
- Wind Induced Response Analysis of Membrane-cable Structures in Fluid-structure Interaction,TU399
- The Research of the Base Design Thoery and Nodes Construction of the Tensioned Cable-membrane Greenhouse,TU399
- Single-plane Cable-supported Glass Curtain Wall Structure Performance Analysis,TU399
- Analysis of Communication Pipeline and Cable Project of Pinghu Materials Trading Mall,TU990.3
- Research on the Key Technologies of Reinforcement of Dilapidated Arch Bridge with Suspender,U445.72
- Key Technology of Structural Design and Construction Control of Tianjin Fumin Bridge,U448.25
- The Study of Market Risk Management of Cable Interactive TV’ TV-on-demand Project,F626;G229.2-F
CLC: > Industrial Technology > General industrial technology > Materials science and engineering > Special structural materials
© 2012 www.DissertationTopic.Net Mobile
|