Structure and infrared emissivity of silicon-containing polyimide/BaTiO3 nanocomposite films

Lin, Baoping; Liu, Hongjian; Zhang, Shixian; Chen, Yuan

doi:10.1016/j.jssc.2004.07.022

Cited by 44 publications

(22 citation statements)

References 10 publications

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“…Dispersion of Barium Titanate (BT) nanoparticles in polymer matrix are studied to achieve superior dielectric properties in the nanocomposites [8,9]. Barium titanate nanoparticles also found useful in lowering the thermal emissivity of other polymer nanocomposites [10]. In this communication, we report the effect of Barium Titanate nanoparticles on the morphology, structure and properties of PVDF/BaTiO 3 electrospun mats.…”

Section: Introductionmentioning

confidence: 98%

Electrospun PVDF/BaTiO3 nanocomposites: polymorphism and thermal emissivity studies

Chanmal

Jog

2011

Int J Plast Technol

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Non-woven fiber mats of PVDF/BaTiO 3 nanocomposites were prepared by electrospinning and characterized by various techniques. Scanning electron micrographs show that fibers obtained were randomly oriented with fiber diameters ranging between 200 nm and 400 nm. The structure of the nanocomposite fibers was studied using X-ray diffraction and ATR-FTIR techniques. The PVDF electrospun mats exhibited a mixed crystalline phase consisting of α and β phases. However the addition of BaTiO 3 was found to result in significant increase in the β phase in electrospun PVDF/BaTiO 3 mats. The enhancement in the β phase is also studied using Raman spectra and complex dielectric measurement. The thermal emissivity of the nanocomposites was found to be lower in nanocomposites as compared to pristine PVDF.

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Section: Introductionmentioning

confidence: 98%

Electrospun PVDF/BaTiO3 nanocomposites: polymorphism and thermal emissivity studies

Chanmal

Jog

2011

Int J Plast Technol

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“…4,5 In particular, the polyimide hybrid materials with dimension in the nanometer size have been largely focused on, because they exhibited better thermal, mechanical, gas separation, and dielectric properties. For example, many polyimide-based nanocomposites, including TiO 2 /PI, 6,7 silica/PI, 5,[8][9][10] ZnO/PI, 11 Al 2 O 3 /PI, 12 BaTiO 3 /PI, 13 and polyhedral oligomeric silsesquioxanes/PI, [14][15][16] have been prepared. At present, the most studies are focused on the silica/polyimide hybrids.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and properties of silica–polyimide hybrid films derived from colloidal silica particles and polyamic acid

Shang

Lü

et al. 2008

J of Applied Polymer Sci

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A series of SiO 2 /polyimide hybrid films with different contents and sizes of SiO 2 particles were prepared by blending polyamic acid (PAA) and SiO 2 nanoparticles obtained from Stö ber method, followed by a step thermal imidization process. The size and content effect of SiO 2 particles on the mechanical and thermal properties was studied. It was found that as the silica particles were introduced into polyimide matrix, T g s of hybrid films increased on the whole and there was a maximum value of T g for the hybrid film with 10-nm SiO 2 particles. TGA indicated that the thermal stability for hybrid films decreased with the increasing content and size of SiO 2 particles. Dynamic mechanical thermal analysis (DMTA) indicated that the modulus of hybrid films increased, while the tensile strength and elongation at break decreased as the size of SiO 2 particles increases from 10 to 25 nm and to 65 nm. All polyimide hybrid films were amorphous according to X-ray determination.

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“…According to the authors, the change in emissivity is due to interfacial phenomena that alter the molecular vibration modes. Lin et al (2004) present the results of measurements of spectral emissivity on a nanocomposite film polyimide/BaTiO 3 . Emissivities averages for the spectral band 8-14 µm are respectively 0.703, 0.574 and 0.605 for mass concentrations of particulate BaTiO 3 : 0%, 14.7% and 28.7%.…”

Section: Nano-oxidesmentioning

confidence: 99%

Properties of Nanofillers in Polymer

Marquis¹,

Guillaume²,

Chivas-Joly³

2011

Nanocomposites and Polymers With Analytical Methods

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Structure and infrared emissivity of silicon-containing polyimide/BaTiO3 nanocomposite films

Cited by 44 publications

References 10 publications

Electrospun PVDF/BaTiO3 nanocomposites: polymorphism and thermal emissivity studies

Electrospun PVDF/BaTiO3 nanocomposites: polymorphism and thermal emissivity studies

Synthesis and properties of silica–polyimide hybrid films derived from colloidal silica particles and polyamic acid

Properties of Nanofillers in Polymer

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