scholarly journals Synthesis, kinetics, and characterization of bio-based thermosets obtained through polymerization of a 2,5-furandicarboxylic acid-based bis(2-oxazoline) with sebacic acid

2015 ◽  
Vol 6 (14) ◽  
pp. 2707-2716 ◽  
Author(s):  
Carolus H. R. M. Wilsens ◽  
Nino J. M. Wullems ◽  
Erik Gubbels ◽  
Yefen Yao ◽  
Sanjay Rastogi ◽  
...  
Keyword(s):  
Thermal Properties ◽  
Sebacic Acid ◽  
Curing Kinetics ◽  
Furandicarboxylic Acid

Renewable 2,5-bis(4,5-dihydrooxazol-2-yl)furan based poly(ester amide)s with enhanced curing kinetics were studied in terms of chemistry and thermal properties.

Thermal and Physical Characterization and Curing Kinetics Study of a Novel Curable Fillet Forming Ball Attach Flux for Improvement of Solder Joint Reliability on Ball Grid Array Packages

2003 ◽  
Author(s):  
Dennis Prem Kumar Chandran ◽  
Yi He ◽  
Eng Chiang Gan
Keyword(s):  
Thermal Properties ◽  
Solder Joint ◽  
Physical Properties ◽  
Ball Grid Array ◽  
Curing Kinetics ◽  
Kinetics Study ◽  
Solder Joint Reliability ◽  
Joint Reliability ◽  
Ball Grid Array Packages

This paper concentrates on the characterization of a novel curable fillet forming ball attach flux. This polymer based material is expected to improve 2nd level interconnet solder joint reliability on ball grid array packages. The evaluations reported in this paper consist of the characterization of their physical and thermal properties. With the understanding of the materials physical properties, the failing mechanism, and material robustness can be predicted.

Mechanical and thermal characterization of grafted PP-NCC nanocomposites

2019 ◽  
pp. 089270571987822
Author(s):  
Saud Aldajah ◽  
Mohammad Y Al-Haik ◽  
Waseem Siddique ◽  
Mohammad M Kabir ◽  
Yousef Haik
Keyword(s):  
Thermal Properties ◽  
Interfacial Adhesion ◽  
Thermal Characterization ◽  
Mechanical And Thermal Properties ◽  
Screw Extruder ◽  
Scanning Calorimetry ◽  
Three Point Bending ◽  
Twin Screw ◽  
Thermal Stability Of

This study reveals the enhancement of mechanical and thermal properties of maleic anhydride-grafted polypropylene (PP- g-MA) with the addition of nanocrystalline cellulose (NCC). A nanocomposite was manufactured by blending various percentages of PP, MA, and NCC nanoparticles by means of a twin-screw extruder. The influence of varying the percentages of NCC on the mechanical and thermal behavior of the nanocomposite was studied by performing three-point bending, nanoindentation, differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), scanning electron microscopy (SEM), and Fourier-transform infrared (FTIR) spectroscopy tests. The novelty of this study stems on the NCC nanoparticles and their ability to enhance the mechanical and thermal properties of PP. Three-point bending and nanoindentation tests revealed improvement in the mechanical properties in terms of strength, modulus, and hardness of the PP- g-MA nanocomposites as the addition of NCC increased. SEM showed homogeneity between the mixtures which proved the presence of interfacial adhesion between the PP- g-MA incorporated with NCC nanoparticles that was confirmed by the FTIR results. DSC and TGA measurements showed that the thermal stability of the nanocomposites was not compromised due to the addition of the coupling agent and reinforced nanoparticles.

Effect of polycyclosilane microstructure on thermal properties

2021 ◽  
Author(s):  
Qifeng Jiang ◽  
Sydnee Wong ◽  
Rebekka S Klausen
Keyword(s):  
Thermal Stability ◽  
Thermal Properties ◽  
Thermal Characterization ◽  
Side Chains ◽  
Phase Properties

Thermal characterization of polysilanes has focused on the influence of organic side chains, whereas little is understood about the influence of silane backbone microstructure on thermal stability, phase properties, and...

scholarly journals Preparation and Characterization of Talc Filled Thermoplastic Polyurethane/Polypropylene Blends

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Emi Govorčin Bajsić ◽  
Vesna Rek ◽  
Ivana Ćosić
Keyword(s):  
Thermal Properties ◽  
Thermoplastic Polyurethane ◽  
Mechanical Analysis ◽  
Degree Of Crystallinity ◽  
Scanning Calorimetry ◽  
Polypropylene Blends ◽  
Pp Blends ◽  
The Degree Of Crystallinity ◽  
Better Than

The effect of the addition of talc on the morphology and thermal properties of blends of thermoplastic polyurethane (TPU) and polypropylene (PP) was investigated. The blends of TPU and PP are incompatible because of large differences in polarities between the nonpolar crystalline PP and polar TPU and high interfacial tensions. The interaction between TPU and PP can be improved by using talc as reinforcing filler. The morphology was observed by means of scanning electron microscopy (SEM). The thermal properties of the neat polymers and unfilled and talc filled TPU/PP blends were studied by using dynamic mechanical analysis (DMA), differential scanning calorimetry (DSC), and thermogravimetric analysis (TGA). The addition of talc in TPU/PP blends improved miscibility in all investigated TPU/T/PP blends. The DSC results for talc filled TPU/PP blends show that the degree of crystallinity increased, which is due to the nucleating effect induced by talc particles. The reason for the increased storage modulus of blends with the incorporation of talc is due to the improved interface between polymers and filler. According to TGA results, the addition of talc enhanced thermal stability. The homogeneity of the talc filled TPU/PP blends is better than unfilled TPU/PP blends.

Characterization of Nigerian Clay as Porous Ceramic Material

2013 ◽  
Vol 845 ◽  
pp. 256-260 ◽  
Author(s):  
M. Abubakar ◽  
A.B. Aliyu ◽  
Norhayati Ahmad
Keyword(s):  
Thermal Properties ◽  
Bulk Density ◽  
Sintering Temperature ◽  
Starch Content ◽  
Porous Ceramic ◽  
Porous Ceramics ◽  
Cassava Starch ◽  
Compaction Method ◽  
Percentage Porosity

Porous ceramics were produced by compaction method of Nigerian clay and cassava starch. The samples were prepared by adding an amount from 5 to 30%wt of cassava starch into the clay and sintered at temperature of 900-1300°C. The influence of cassava starch content on the bulk density and apparent porosity was studied. The result of XRD and DTA/TGA shows that the optimum sintering temperature was found to be 1300°C. The percentage porosity increased from 12.87 to 43.95% while bulk density decreased from 2.16 to 1.46g/cm3 with the increase of cassava starch from 5 to 30%wt. The effect of sintering temperature and cassava starch content improved the microstructure in terms of porosity and the thermal properties of porous clay for various applications which requires a specific porosity.

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