Dynamic Mechanical Study of the Factors Affecting the Two Glass Transition Behavior of Filled Polymers. Similarities and Differences with Random Ionomers

1995 ◽  
Vol 28 (18) ◽  
pp. 6067-6077 ◽  
Author(s):  
George Tsagaropoulos ◽  
Adi Eisenberg
Keyword(s):  
Glass Transition ◽  
Filled Polymers ◽  
Factors Affecting ◽  
Dynamic Mechanical ◽  
Transition Behavior ◽  
Mechanical Study ◽  
Similarities And Differences

Further Consideration of Viscoelastic Two Glass Transition Behavior of Nanoparticle-Filled Polymers

2011 ◽  
Vol 44 (5) ◽  
pp. 1177-1181 ◽  
Author(s):  
Christopher G. Robertson ◽  
Mindaugas Rackaitis
Keyword(s):  
Glass Transition ◽  
Filled Polymers ◽  
Transition Behavior

Dynamic-Mechanical Study of the Dynamics of Polymer Blends near the Glass Transition

1995 ◽  
Vol 28 (8) ◽  
pp. 2693-2699 ◽  
Author(s):  
A. Sanchis ◽  
M. G. Prolongo ◽  
R. M. Masegosa ◽  
R. G. Rubio
Keyword(s):  
Glass Transition ◽  
Polymer Blends ◽  
Dynamic Mechanical ◽  
Mechanical Study

scholarly journals Replacement of metallic parts for polymer composite materials in motorcycle oil pumps

2016 ◽  
Vol 36 (2) ◽  
pp. 149-160 ◽  
Author(s):  
Sandro Donnini Mancini ◽  
Antídio de Oliveira Santos Neto ◽  
Maria Odila Hilário Cioffi ◽  
Eduardo Carlos Bianchi
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Glass Transition ◽  
Glass Fiber ◽  
Dynamic Mechanical Analysis ◽  
Mechanical Analysis ◽  
Neutral Medium ◽  
Element Analysis ◽  
Dynamic Mechanical ◽  
Oil Pump

A feasibility study was conducted to determine the use of polyphthalamide/glass-fiber and polyphthalamide/glass-fiber/polytetrafluoroethylene-based composites as substitutes for aluminum and steel, respectively, in the production of motorcycle oil pump parts (housing, shaft/inner gerotor and outer gerotor). New and used (80,000 km) oil pumps were subjected to performance tests, whose results indicated that the pressure and temperature of the used pump reached a maximum of 1.8 bar and 93℃, respectively. Thermogravimetric analysis indicated that the materials are stable at the maximum operating temperature, which is 20℃ lower than the minimum glass transition temperature obtained by dynamic mechanical analysis for both materials at the analyzed frequencies (defined after calculations based on rotations in neutral, medium and high gear). The pressure value was multiplied by a safety factor of at least 1.6 (i.e., 3 bar), which was used as input for a finite element analysis of the parts, as well as the elasticity modulus at glass transition temperatures obtained by dynamic mechanical analysis. The finite element analysis indicated that the von Mises stresses to which the composite parts were subjected are 7 to 50 times lower than those the materials can withstand. The results suggest that it is feasible to manufacture motorcycle oil pump parts with these composites.

Thermal stability, decomposition and glass transition behavior of PANI/NiO composites

2009 ◽  
Vol 98 (2) ◽  
pp. 533-537 ◽  
Author(s):  
Yanni Qi ◽  
Jian Zhang ◽  
Shujun Qiu ◽  
Lixian Sun ◽  
Fen Xu ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Glass Transition ◽  
Transition Behavior

Glass transition behavior of carnosine and its impact as a protectant on freeze-dried lactic acid bacteria

2021 ◽  
Author(s):  
Shuto Mikajiri ◽  
Tomochika Sogabe ◽  
Ruodan Cao ◽  
Takahiro Kikawada ◽  
Toru Suzuki ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Glass Transition ◽  
Lactic Acid Bacteria ◽  
Transition Behavior ◽  
Freeze Dried
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