Poly(ethylene‐<i>co</i>‐vinyl acetate)/calcium phosphate nanocomposites: Mechanical, gas permeability, and molecular transport properties

Thomas, Selvin P.; Sreekumar, P.A.; Aprem, Abi Santhosh; Thomas, Sabu

doi:10.1002/app.33238

Cited by 4 publications

(4 citation statements)

References 45 publications

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“…20.9, the parameters k D , b, C' H can be extracted. Alternatively, it is possible to deduce the solubility by the relation [18]: 28) where M eq is the mass of the gas sorbed at equilibrium and M p is the mass of the polymer. The solubility is then expressed as (g of sorbed gas)/(g of polymer).…”

Section: Sorption/desorption Experimentsmentioning

confidence: 99%

Recent Developments in the Permeability of Polymer Clay Nanocomposites

Choudalakis

Gotsis

2013

Handbook of Polymernanocomposites. Processing, Performance and Application

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Section: Sorption/desorption Experimentsmentioning

confidence: 99%

Recent Developments in the Permeability of Polymer Clay Nanocomposites

Choudalakis

Gotsis

2013

Handbook of Polymernanocomposites. Processing, Performance and Application

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“…Large particle–particle interactions result in inhomogeneous distribution of the filler, processing problems, poor appearance, and inferior properties. This fact may emphasize the importance of homogeneity where the increasing amount of aggregates leads to a decrease of tensile properties of the rubber composites 39–42. When there is good interaction between the polymer matrix and filler, the opportunities for agglomeration will be less.…”

Section: Introductionmentioning

confidence: 99%

“…When there is good interaction between the polymer matrix and filler, the opportunities for agglomeration will be less. Whereas, owing to the large surface energy for the nano‐particles, when increase the amount of the filler–filler interaction will increase resulting in agglomerates 42…”

Section: Introductionmentioning

confidence: 99%

Thermal destruction of carbon black network structure in natural rubber vulcanizate

Kato¹,

Suda²,

Ikeda³

et al. 2011

J of Applied Polymer Sci

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To investigate thermal destruction and rearrangement of the carbon black (CB) network consisting of CB aggregates in rubbery matrix, the proper heat-treatment temperature without thermal decomposition of rubber matrix were examined by using differential scanning calorimetry, dynamic mechanical measurements, and thermal expansion measurements. 383 K was chosen as the heat-treatment temperature under vacuum. The volume resistivity (q v ) of 50 phr CB-filled natural rubber vulcanizate (CB-50) increased rapidly up to a heat-treatment time of 24 h and it decreased by further heat-treatment time, whereas the q v of CB-80 remained almost constant without depending on heating time. Three-dimensional electron microscope (3D-TEM) observations revealed that after the heat-treatment for 75 h, the average lengths of the crosslinked and the branched chains and the crosslinked points density (D cross ) of the CB network decreased, whereas the branched points density (D branch ) increased with decrease of D cross . After the heat-treatment, their fractions (F cross 0 s) of crosslinked chains decreased, whereas their fractions (F branch 0 s) of the branched ones increased. Especially, F branch of CB-50 became larger than that of CB-80, while the decrease of F cross of CB-50 was almost the same as that of CB-80 by the heat-treatment. And, F cross and F branch of the heat-treated CB-50 were the same compositions (F cross and F branch ¼ ca. 0.7 and ca. 0.3, respectively) as those of the heat-treated CB-80. It is suggested that the CB network of CB-80 is more thermal stable than that of CB-50. These results directly indicate that CB network is broken and is rearranged by a heat-treatment.

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“…2.10 the parameters k D , b, C ′ H can be extracted. Alternatively, it is possible to deduce the solubility by the relation [Thomas et al, 2011]:…”

Section: Sorption/desorption Experimentsmentioning

confidence: 99%

The use of nano-particles for the development of enhanced gas barrier polymeric coatings

Choudalakis¹,

Χουδαλάκης²

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I would like to thank prof. Stephen J. Picken and Dr. Henk Schut from the Technical University of Delft for their great hospitality and help during my staying at the Interfaculty Reactor Institute for the PALS measurements. Also, many thanks to Dr. Louise Nobel for the supply of the acrylic resin emulsion.I deeply thank prof. Josef Breu for his invitation and excellent hospitality at the University of Bayreuth in Germany. His high level scientific team and work was an important experience for me. Also many thanks to Dr. Daniel Kunz for his support and for the supply of the hectorite powder.I am gratefull to prof. Dionysios Mantzavinos of the Environmental Engineering Department for the ultrasound device. Also I thank prof. Georgios Kostakis of the Mineral Resources Engineering Department for the X-ray measurements and Ms. Maria Stratigaki for conducting the PALS measurements of the hectorite samples.I would like to deeply thank prof. Spiridon Anastasiadis, prof. Dimitrios Vlasopoulos, Dr. Emmanuel Stratakis and Mr. Lampros Papoutsakis of the University of Heraclion and Foundation of Research and Technology (F.O.R.T.H.) for the X-ray and TGA measurements and for the supply of the organo-modified montmorillonite powders. Their hospitality and willingness to help are the most obvious examples that explain why these research foundations are considered to be the best in Greece.Finally, I thank all seven members of the advisory committee for their thoughtful comments on this dissertation.xi xii

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Poly(ethylene‐co‐vinyl acetate)/calcium phosphate nanocomposites: Mechanical, gas permeability, and molecular transport properties

Cited by 4 publications

References 45 publications

Recent Developments in the Permeability of Polymer Clay Nanocomposites

Recent Developments in the Permeability of Polymer Clay Nanocomposites

Thermal destruction of carbon black network structure in natural rubber vulcanizate

The use of nano-particles for the development of enhanced gas barrier polymeric coatings

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