Crosslinking of cotton cellulose in the presence of serine and glycine. I. Physical properties and reaction kinetics

2005 ◽  
Vol 97 (2) ◽  
pp. 595-603 ◽  
Author(s):  
Wei-Hua Yao ◽  
Jui-Chin Chen ◽  
Mei-Shan Hu ◽  
Ming-Yu Teng ◽  
Po-Hsiung Huang ◽  
...  
Keyword(s):  
Physical Properties ◽  
Reaction Kinetics ◽  
Cotton Cellulose

Physical properties and reaction kinetics of cotton cellulose crosslinked with dimethyloldihydroxyethyleneurea-maleic acid

2004 ◽  
Vol 92 (6) ◽  
pp. 3886-3893 ◽  
Author(s):  
Han-Hsing Hsiung ◽  
Hung-Yu Huang ◽  
Yuen-Hua Wang ◽  
Chang Wang ◽  
Jui-Chin Chen ◽  
...  
Keyword(s):  
Physical Properties ◽  
Reaction Kinetics ◽  
Maleic Acid ◽  
Cotton Cellulose ◽  
Kinetics Of

Physical properties and reaction kinetics of CO2 absorption into unloaded and CO2 loaded viscous monoethanolamine (MEA) solution

2021 ◽  
Vol 329 ◽  
pp. 115569
Author(s):  
Rouzbeh Ramezani ◽  
Ida M. Bernhardsen ◽  
Renzo Di Felice ◽  
Hanna K. Knuutila
Keyword(s):  
Physical Properties ◽  
Reaction Kinetics ◽  
Co2 Absorption ◽  
Kinetics Of

Studies of the Physical Properties of Cycloaliphatic Epoxy Resin Reacted with Anhydride Curing Agents

2017 ◽  
Vol 737 ◽  
pp. 248-255 ◽  
Author(s):  
Tae Hee Kim ◽  
Dae Yeon Kim ◽  
Choong Sun Lim ◽  
Bong Kuk Seo
Keyword(s):  
Physical Properties ◽  
Reaction Kinetics ◽  
Epoxy Resin ◽  
High Performance ◽  
Industrial Applications ◽  
Scanning Calorimetry ◽  
Low Viscosity ◽  
High Performance Polymer ◽  
Curing Agents ◽  
The Impact

The preparation of high performance epoxy composites for industrial applications has been extensively researched. In this report, we study the change in physical properties and reaction kinetics between epoxy resin and curing agents of similar geometry. For the experiments, celloxide 2021P, an epoxy resin having low viscosity, was blended with three different curing agents: methylhexahydropthalic acid, methyltetrahydropthalic acid, and 5-norbornene-2, 3-dicarboxylic anhydride. The amount of 1, 2-dimethylimidazole catalyst was controlled, and the highest heat flow temperature (Tpeak) was observed at around 145 °C. The impact on reaction kinetics relative to the change in heating rate was studied with differential scanning calorimetry (DSC) for each of the curing agents. The glass transition temperature (Tg) of each composition was measured with a second DSC cycle. The prepared epoxy compositions were thermally cured in a metallic mold to provide pure epoxy resins without fillers. Finally, the flexural strengths of these resins were compared to each other. The authors believe that insights into choosing an appropriate epoxy binder are useful when it comes to the overall preparation of high performance polymer composites.

scholarly journals Slag and Activator Chemistry Control the Reaction Kinetics of Sodium Metasilicate-Activated Slag Cements

2018 ◽  
Vol 10 (12) ◽  
pp. 4709 ◽  
Author(s):  
Maria Criado ◽  
Brant Walkley ◽  
Xinyuan Ke ◽  
John Provis ◽  
Susan Bernal
Keyword(s):  
Blast Furnace ◽  
Physical Properties ◽  
Reaction Kinetics ◽  
Isothermal Calorimetry ◽  
Sodium Metasilicate ◽  
Clear Correlation ◽  
Close Relationship ◽  
Slag Glass ◽  
Activated Slag ◽  
Kinetics Of

The reaction kinetics of four commercial ground granulated blast furnace slags with varying percentages of MgO (6 to 14 wt.%), activated with four different doses of sodium metasilicate, were evaluated using isothermal calorimetry. The reaction kinetics were strongly dependent on the dose of the alkaline activator used, and the chemical and physical properties of the slag. When using low concentrations of sodium metasilicate as an activator, the MgO content in the slag influences the kinetics of the reaction, while the CaO content plays a more significant role when the concentration of metasilicate is increased. This study elucidated a close relationship between the dose of the alkali-activator and the chemistry of the slag used, although it was not possible to identify a clear correlation between any of the published chemically-based “slag quality moduli” and the calorimetry results, highlighting the complexity of blast furnace slag glass chemistry, and the importance of the physical properties of the slag in defining its reactivity.

Thermal Analysis of Aluminum Alloys

2019 ◽  
Author(s):  
Consuelo García-Cordovilla ◽  
Enrique Louis
Keyword(s):  
Thermal Analysis ◽  
Aluminum Alloys ◽  
Physical Properties ◽  
Reaction Kinetics ◽  
Microstructural Characterization ◽  
Basic Principles ◽  
General Rules ◽  
Microscopy Techniques

Microstructural characterization of aluminum alloys is typically performed by combining microscopy techniques with measurement of physical properties such as conductivity and hardness. Relatively recently calorimetric techniques have been used to complement the more traditional methodologies. This article will discuss: basic principles, instrumentation and experimental procedures, reaction kinetics, and general rules for interpreting DTA and DSC data. Heat treatable, non-heat treatable alloy and aluminum-based composite characterization are discussed.

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