Thermal conductivity and thermal diffusivity analyses of low-density polyethylene composites reinforced with sisal, glass and intimately mixed sisal/glass fibres

Kalaprasad, G.; Pradeep, P.; Mathew, George; Pavithran, C.; Thomas, Sabu

doi:10.1016/s0266-3538(00)00162-7

Cited by 149 publications

(91 citation statements)

References 19 publications

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“…4). Both thermal diffusivities are comparable to the values of classical isolators such as polyethylene (2.2 9 10 À7 m 2 s À1 ) 44 and polyvinylchloride (1 9 10 À7 m 2 s À1 ). 45 A brief summary of the thermal diffusivity data is given in Table III.…”

Section: To Identify and Interpret The Polyanionic Part Of Anion Subsmentioning

confidence: 53%

Highly Dynamic Chalcogen Chains in Silver(I) (Poly)Chalcogenide Halides: a New Concept for Thermoelectrics?

Nilges

Bawohl

Lange

et al. 2009

Journal of Elec Materi

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Coinage-metal(I) polychalcogenide halides represent a new class of materials featuring high ion dynamics of different substructures capable of an effective phonon scattering process in the solid state. The interplay of mobile coinagemetal ions such as Ag + or Cu + on the one hand and the temperature-driven redox reaction of a linear, partially covalent-bonded Te chain on the other hand is responsible for tremendous variations in the electronic structure of such materials. A huge drop of the Seebeck coefficient within a very small temperature range and an extremely low thermal conductivity are the key properties of Ag 10 Te 4 Br 3 , the first representative of this substance class. Two different sets of compounds with the general formula (CM) 10 Q 4 X 3 and (CM) 23 Q 12 X (CM = coinage metal Cu or Ag, Q = chalcogen, X = halogen) have been found, and recent experiments point toward the existence of formerly unknown copper(I) (poly)chalcogenide halides and two more silver(I) (poly)chalcogenide halides in this field. A comparable linear Te chain is present in a number of different compounds such as some alkaline-earth polychalcogenides M 5 Te 3 , the mineral stuetzite Ag 4.5 Te 3 , and the closely related compounds Ag 11 AsTe 7 and Ag 12 Te 6 S. In most cases the thermoelectric potential of these materials has not been verified. A topological approach for the description of the structural features has been developed to understand the electronic properties of these complex materials in detail.

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Section: To Identify and Interpret The Polyanionic Part Of Anion Subsmentioning

confidence: 53%

Highly Dynamic Chalcogen Chains in Silver(I) (Poly)Chalcogenide Halides: a New Concept for Thermoelectrics?

Nilges

Bawohl

Lange

et al. 2009

Journal of Elec Materi

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“…It was also reported that the hybridization of the sisal fiber composite with the synthetic fiber like glass resulted in the improvement of the thermal properties like thermal conductivity, diffusivity, etc. due to the presence of Fe 2+ ions in the glass fibers [71].…”

Section: Thermal Characterization Of Sfrpsmentioning

confidence: 99%

Characterization of Natural Fiber Reinforced Composites-Bamboo and Sisal: A Review

Singh¹

2014

IJRET

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“…Kalaprasad et al 40 describe the nature of a glass fiber as being isotropic and amorphous and, although the glass fiber has a thin reactive coating (sizing), this may explain the difference in the E a values for UPR/GF and UPR 41 .…”

Section: Differential Scanning Calorimetry (Dsc)mentioning

confidence: 99%

Influence of glass and sisal fibers on the cure kinetics of unsaturated polyester resin

et al. 2012

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The effect of grinded glass and sisal fibers (25 vol%) on the cure kinetics of composites of unsaturated polyester resin (UPR) was investigated by differential scanning calorimetry (DSC) and scanning electron microscopy (SEM). The DSC analysis was carried out at four different heating rates (5, 10, 20 and 40 °C/min), and the cure enthalpy and activation energy (E a ) were determined according to the Flynn-Wall-Ozawa (FWO) method. The results showed that increasing heating rates promoted reduced reaction times. The sisal fiber-containing composites exhibit higher activation energy values for the cure process in comparison with the neat polyester resin and the glass fiber composites. This can be due to the presence of polar groups in the sisal components, which physically interact with the polyester resin and retard the cure reaction. Hence, as sisal fiber retarded the cure reaction of the UPR resin, it is suggested that the use of natural fibers in polymer matrix composites can affect the cure kinetics of the polyester resin.

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Thermal conductivity and thermal diffusivity analyses of low-density polyethylene composites reinforced with sisal, glass and intimately mixed sisal/glass fibres

Cited by 149 publications

References 19 publications

Highly Dynamic Chalcogen Chains in Silver(I) (Poly)Chalcogenide Halides: a New Concept for Thermoelectrics?

Highly Dynamic Chalcogen Chains in Silver(I) (Poly)Chalcogenide Halides: a New Concept for Thermoelectrics?

Characterization of Natural Fiber Reinforced Composites-Bamboo and Sisal: A Review

Influence of glass and sisal fibers on the cure kinetics of unsaturated polyester resin

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