The use of dynamic mechanical thermal analysis technique for determining an uneven distribution of precipitated silica in CPE/NR blends

2008 ◽  
Vol 27 (7) ◽  
pp. 873-880 ◽  
Author(s):  
Pakpum Phewphong ◽  
Pongdhorn Saeoui ◽  
Chakrit Sirisinha
Keyword(s):  
Thermal Analysis ◽  
Dynamic Mechanical Thermal Analysis ◽  
Uneven Distribution ◽  
Thermal Analysis Technique ◽  
Dynamic Mechanical ◽  
Precipitated Silica ◽  
Analysis Technique

scholarly journals Characterization of Shape Memory Polymer Estane by Means of Dynamic Mechanical Thermal Analysis Technique

2014 ◽  
Vol 2014 ◽  
pp. 1-9 ◽  
Author(s):  
Rasa Kazakevičiūtė-Makovska ◽  
Aycan Özlem Özarmut ◽  
Holger Steeb
Keyword(s):  
Thermal Analysis ◽  
Shape Memory ◽  
Dynamic Mechanical Thermal Analysis ◽  
Shape Memory Polymer ◽  
Relaxation Processes ◽  
Dynamic Mechanical ◽  
Analysis Technique ◽  
Storage And Loss Moduli ◽  
Different Temperatures ◽  
Linear Viscoelastic

Commercially available shape memory polymer (SMP) Estane (designation: ETE75DT3 NAT022) is investigated by means of dynamic mechanical thermal analysis (DMTA) technique in torsion mode using the Modular Compact Rheometer MCR-301 (Anton Paar GmbH). Amplitude sweep tests have been run below and above the glass transition temperature to establish the linear viscoelastic range (LVR) in glassy and rubbery phase of this SMP for the correct physical interpretation of DMTA data. Temperature sweep tests were performed at various frequencies to study the influence of this parameter on values of the storage and loss moduli and the storage and loss compliances as well as the viscosities. These tests have been carried out in heating mode with different rates and at different strain amplitudes. The short- and long-term behavior of SMP Estane have been studied by frequency sweep tests performed at different temperatures and data have been transformed into time-domain properties by applying time-temperature superposition principles. All these DMTA data provide the experimental basis for the study of relaxation processes, property-structure relationships, and the shape memory effect in this little-known SMP.

Quantification of the Impact of Strontium on the Solidification Path of the Aluminum-Silicon-Copper Alloys Using Thermal Analysis Technique

2009 ◽  
Vol 46 (3) ◽  
pp. 137-152 ◽  
Author(s):  
Mile Djurdjevic ◽  
Glenn Byczynski ◽  
Carola Schechowiak ◽  
Hagen Stieler ◽  
Jelena Pavlovic
Keyword(s):  
Thermal Analysis ◽  
Copper Alloys ◽  
Solidification Path ◽  
Thermal Analysis Technique ◽  
Analysis Technique ◽  
The Impact ◽  
Aluminum Silicon

Study on combustion performance of hydrothermally dewatered lignite by thermal analysis technique

Fuel ◽  
2021 ◽  
Vol 285 ◽  
pp. 119217
Author(s):  
Qiong Mo ◽  
Junjie Liao ◽  
Liping Chang ◽  
Yanna Han ◽  
Alan L. Chaffee ◽  
...  
Keyword(s):  
Thermal Analysis ◽  
Thermal Analysis Technique ◽  
Combustion Performance ◽  
Analysis Technique

THE STRUCTURAL DEVELOPMENT OF NYLON6/LAYERED SILICATE NANOCOMPOSITE DURING ZONE-DRAWING

2006 ◽  
Vol 20 (25n27) ◽  
pp. 4577-4582
Author(s):  
SUNG SOO HAN ◽  
YANG-WHAN CHO ◽  
SOO-YOUNG PARK
Keyword(s):  
Thermal Analysis ◽  
Dynamic Mechanical Thermal Analysis ◽  
Crystalline Phase ◽  
Layered Silicate ◽  
Phase Region ◽  
Structural Development ◽  
X Ray ◽  
Dynamic Mechanical ◽  
X Ray Scattering ◽  
Degree Of Orientation

The structural development of nylon6/layered silicate nanocomposite during zone-drawing was studied using X-ray scattering and dynamic mechanical thermal analysis. The γ form, which was favored in the pressed film, was converted into the α form during zone-drawing. The newly developed α form, during zone-drawing, has a better orientation than the existing γ form, thus supporting the claim that the α form crystallizes away from the polymer-silicate inter-phase region during drawing. The degree of orientation of the layered silicate, projected along the TD direction, increases with the increase of the draw ratio, suggesting that the layered silicate has become straighter during zone-drawing, although the layered silicate within the zone-drawn film buckled perpendicular to the draw direction. The β transition of the dynamic mechanical thermal analysis is independent of the crystalline phase, although the α transition is strongly dependent upon the crystalline phase. This can be explained by the free volume that exists in the inter-phase between the γ lamellar and the layered silicate.

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