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2.641 Aktuelle Fachpublikationen zum Thema temperature

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Measurements of slip velocity and frictional heating in the capillary extrusion of linear‐low density polyethylene with a fluoropolymer processing aid

30.04.2016 | H.S. Zamora‐López, J. Pérez‐González, B.M. Marín‐Santibáñez, J.F. Ortega‐Avila, Polymer Engineering and Science, 2016

The slip velocity and frictional or slip heating of linear‐low density polyethylene with a fluoropolymer processing aid in capillary flow were measured by rheo‐particle image velocimetry and thermal imaging. The pure polymer did not show slip before the stick‐slip regime but exhibited strong ...

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Photocrosslinked biobased phase change material for thermal energy storage

30.04.2016 | Emre Baştürk, Memet Vezir Kahraman, Journal of Applied Polymer Science, 2016

ABSTRACT A series of novel photocrosslinked biobased shape‐stabilized phase change materials (PCMs) based on octadecanol, eicosanol and docosanol have been prepared by UV technique for the purpose of thermal energy storage applications. Epoxidized soybean oil was reacted with acrylic acid to ...

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Vacuum‐assisted microwave processing of glass‐epoxy composite laminates using novel microwave absorbing molds

30.04.2016 | Sandhya Rao, M.C. Chiranjeevi, M. Rajendra Prakash, Polymer Composites, 2016

For polymer composite product manufacture, curing is a critical step in achieving desired thermal and mechanical properties. The conventional thermal cure processes using hot air ovens and autoclaves are time and energy intensive. Microwave (MW) assisted curing is one of the alternative, most ...

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Engineering model for intumescent coating behavior in a pilot‐scale gas‐fired furnace

29.04.2016 | Kristian Petersen Nørgaard, Kim Dam‐Johansen, Pere Català, Søren Kiil, AIChE Journal, 2016

Abstract In the event of a fire, intumescent fire protective coatings expand and form a thermally insulating char that protects the underlying substrate from heat and subsequent structural failure. The intumescence includes several rate phenomena, which have been investigated and quantified in ...

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Pyrolysis and thermogravimetry of blended and nonblended residues of pine and eucalyptus forestry woods

29.04.2016 | Valdeci José Costa, Ricardo Mancilio Vieira, Sandy Bernardi Falcadi Tedesco Girotto, Flávio José Simioni, Environmental Progress, 2016

In this article, we present the results of the thermogravimetric analysis (TGA) of blended and nonblended residues of Pinus taeda and Eucalyptus benthamii submitted to thermal degradation at heating rates of 5, 15, and 30 K/min, up to a maximum of 900 K. The temperature range is divided into ...

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Evidence of Universal Temperature Scaling in Self-Heated Percolating Networks

28.04.2016 | Suprem R. Das; Amr M. S. Mohammed; Kerry Maize; Sajia Sadeque; Ali Shakouri; David B. Janes; Muhammad A. Alam, Nano Letters, 2016

During routine operation, electrically percolating nanocomposites are subjected to high voltages, leading to spatially heterogeneous current distribution. The heterogeneity implies localized self-heating that may (self-consistently) reroute the percolation pathways and even irreversibly damage ...

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Hermetic Thermal Behavior of 3,4‐Diaminofurazan (DAF)

27.04.2016 | Yanfeng Li, Xiaofeng Wang, Kangzhen Xu, Bozhou Wang, Jirong Song, Fengqi Zhao, Propellants, Explosives, Pyrotechnics, 2016

Abstract Hermetic thermal behavior of 3,4‐diaminofurazan (DAF) was studied by DSC method with special high‐pressure hermetic crucibles. The complete exothermic decomposition process of DAF can be provided. The extrapolated onset temperature, peak temperature, and enthalpy of decomposition at a ...

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Sustainability, Vol. 8, Pages 410: Analysis of the Effect of the CaCl2 Mass Fraction on the Efficiency of a Heat Pump Integrated Heat-Source Tower Using an Artificial Neural Network Model

26.04.2016 | Wei, Xiaoqing ; Li, Nianping ; Peng, Jinqing ; Cheng, Jianlin ; Su, Lin ; Hu, Jinhua, Sustainability, 2016

An existing idle cooling tower can be reversibly used as a heat-source tower (HST) to drive a heat pump (HP) in cold seasons, with calcium chloride (CaCl2) aqueous solution commonly selected as the secondary working fluid in an indirect system due to its good thermo-physical properties. This ...

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Investigation of Changes in the Microscopic Structure of Anionic Poly(N-isopropylacrylamide-co-Acrylic acid) Microgels in the Presence of Cationic Organic Dyes toward Precisely Controlled Uptake/Release of Low-Molecular-Weight Chemical Compound

26.04.2016 | Takuma Kureha; Takahisa Shibamoto; Shusuke Matsui; Takaaki Sato; Daisuke Suzuki, Langmuir, 2016

Changes in a microscopic structure of an anionic poly(N-isopropylacrylamide-co-acrylic acid) microgel were investigated using small- and wide-angle X-ray scattering (SWAXS). The scattering profiles of the microgels were analyzed in a wide scattering vector (q) range of 0.07 ≤ q/nm–1 ≤ 20. In ...

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Materials, Vol. 9, Pages 309: A Phase-Shifting Method for Improving the Heating Uniformity of Microwave Processing Materials

25.04.2016 | Liao, Yinhong ; Lan, Junqing ; Zhang, Chun ; Hong, Tao ; Yang, Yang ; Huang, Kama ; Zhu, Huacheng, Materials, 2016

Microwave processing of materials has been found to deliver enormous advantages over conventional processing methods in terms of mechanical and physical properties of the materials. However, the non-uniform temperature distribution is the key problem of microwave processing, which is related to ...

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