Thermal conductivity, thermal diffusivity, and specific heat capacity of particle filled polypropylene

Weidenfeller, B.; Höfer, Michael; Schilling, Frank

doi:10.1016/j.compositesa.2003.11.005

Cited by 351 publications

(214 citation statements)

References 11 publications

Supporting

Mentioning

204

Contrasting

Unclassified

Order By: Relevance

“…However, similar to PP control fibers, a-form PP crystals became clearer upon charging at 130 C. Mesomorphic structure of 10% BaTiO 3 /PP sample might be due to changes in temperature profile of solidifying molten jet. BaTiO 3 might have caused early solidification, due to its higher heat transfer coefficient than that of PP (He 2004;Weidenfeller et al 2004). Diffraction peaks in the range of 30-60 mainly correspond to perovskite barium titanate crystals (Wang et al 2002;Yuh et al 2005 ELCAPBTPP 671 structure was much less.…”

Section: Microstructural Properties Of Batio 3 /Pp Websmentioning

confidence: 99%

Electrostatic Capture Efficiency Enhancement of Polypropylene Electret Filters with Barium Titanate

Kılıç

Shim

Pourdeyhimi

2015

Aerosol Science and Technology

View full text Add to dashboard Cite

This study reports on the effects of BaTiO 3 -a high dielectric constant additive-addition on charging and filtration properties of meltblown polypropylene (PP) electret filters. Since electrostatic capture efficiency of electret filters is mainly dependent on electrical forces, surface potential and aerosol filtration properties were analyzed and compared. Due to quasipermanent nature of electret property, stability of charging and filtration performance was also investigated via following an isothermal charge decay procedure. Addition of BaTiO 3 did not alter fiber morphology significantly. Particularly, the stability of electrostatic filtration performance was found to be promising with the addition of BaTiO 3 . Possible microstructural changes after addition of BaTiO 3 were investigated via wide angle X-ray diffraction. Changes in crystal structure of PP upon addition of BaTiO 3 did not deteriorate electrostatic properties.

show abstract

Section: Microstructural Properties Of Batio 3 /Pp Websmentioning

confidence: 99%

Electrostatic Capture Efficiency Enhancement of Polypropylene Electret Filters with Barium Titanate

Kılıç

Shim

Pourdeyhimi

2015

Aerosol Science and Technology

View full text Add to dashboard Cite

show abstract

“…In the case of 15 wt% other models underestimated the TC values of nanocomposites except for the Ce Wen Nan model, whereas for 5 wt% all models overestimated the TC value. The predicted TC values by the models depend on the nature of nanofiller and their relative concentrations (Weidenfeller et al, 2004;Frormann et al, 2008 …”

Section: Thermal Conductivity Measurementmentioning

confidence: 99%

“…The values of A and Ф max were given for many geometric shapes and orientations (Weidenfeller et al, 2004).…”

Section: Modeling Of Thermal Conductivity In Compositesmentioning

confidence: 99%

Thermal Conductivity of Nanoparticles Filled Polymers

Ebadi‐Dehaghani¹,

Nazempour²

2012

Smart Nanoparticles Technology

View full text Add to dashboard Cite

“…(Hungary). Its thermal conductivity coefficient is about 2-10 W/mK [12] and its density is 2.7 g/cm 3 . The titanium dioxide (TiO2) was also obtained from Novia Kft.…”

Section: Methodsmentioning

confidence: 99%

Injection molding of ceramic filled polypropylene: The effect of thermal conductivity and cooling rate on crystallinity

2013

View full text Add to dashboard Cite

Three different nano-and micro-sized ceramic powders (boron-nitride (BN), talc and titanium-dioxide (TiO2)) in 30 vol% have been compounded with a polypropylene (PP) matrix. Scanning electron microscopy (SEM) shows that the particles are dispersed smoothly in the matrix and larger aggregates can not be discovered. The cooling gradients and the cooling rate in the injection-molded samples were estimated with numerical simulations and finite element analysis software. It was proved with differential scanning calorimetry (DSC) measurements that the cooling rate has significant influence on the crystallinity of the compounds. At a low cooling rate BN works as a nucleating agent so the crystallinity of the compound is higher than that of unfilled PP. On the other hand, at a high cooling rate, the crystallinity of the compound is lower than that of unfilled PP because of its higher thermal conductivity. The higher the thermal conductivity is, the higher the real cooling rate in the material, which influences the crystallization kinetics significantly.

show abstract

Thermal conductivity, thermal diffusivity, and specific heat capacity of particle filled polypropylene

Cited by 351 publications

References 11 publications

Electrostatic Capture Efficiency Enhancement of Polypropylene Electret Filters with Barium Titanate

Electrostatic Capture Efficiency Enhancement of Polypropylene Electret Filters with Barium Titanate

Thermal Conductivity of Nanoparticles Filled Polymers

Injection molding of ceramic filled polypropylene: The effect of thermal conductivity and cooling rate on crystallinity

Contact Info

Product

Resources

About