Effect of surface functionalization of SiO2 particles on the interfacial and mechanical properties of PEN composite films

This study focuses on the fabrication and characterization of vermiculite-filled flexible polymer composites. Exfoliated vermiculite was incorporated into triblock thermoplastic elastomer copolymer, styrene- b-(ethylene- co-butylene)- b-styrene (SEBS), at various levels from 1 to 15 wt% by a high shear mixer. The composite films were obtained by the combination of solvent casting and compression molding. The morphological, structural, thermal, and mechanical properties and contact angle of the composites were determined. Some micro-morphological differences were observed between the samples and the difference was assumed to be caused by high shear mixing and filler concentration. High shear mixing was found effective in terms of the detachment of vermiculite layers at all concentrations. However, at low filler loading, that behavior was more obvious. At 1 wt% filler concentration, mechanical properties increased that was probably caused by good filler-matrix interaction stemmed from smaller particle size. At higher vermiculite concentrations, fillers found to show agglomerations that led to a decrease in mechanical strength and strain at break. Elastic and secant modulus showed an increasing trend. Contact angle measurements were carried out to determine the oleophilic character of the samples. An increase in the vermiculite content resulted in higher oleophilic character and the lowest contact angle was obtained at 15 wt% VMT loading. In addition to these, thermal stability, thermal dimensional stability and flame retardancy were improved by the incorporation of VMT. 15 wt% vermiculite-filled sample showed the best performance in terms of thermal stability and flame retardancy.

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Ecofriendly Preparation and Characterization of a Cassava Starch/Polybutylene Adipate Terephthalate Film

Processes ◽

10.3390/pr8030329 ◽

2020 ◽

Vol 8 (3) ◽

pp. 329

Author(s):

Tan Yi ◽

Minghui Qi ◽

Qi Mo ◽

Lijie Huang ◽

Hanyu Zhao ◽

...

Keyword(s):

Mechanical Properties ◽

Contact Angle ◽

Water Vapor ◽

Composite Film ◽

Water Absorption ◽

Composite Films ◽

Thermoplastic Starch ◽

Light Transmittance ◽

Infrared Spectrometry ◽

Nano Zno

Composite films of polybutylene adipate terephthalate (PBAT) were prepared by adding thermoplastic starch (TPS) (TPS/PBAT) and nano-zinc oxide (nano-ZnO) (TPS/PBAT/nano-ZnO). The changes of surface morphology, thermal properties, crystal types and functional groups of starch during plasticization were analyzed by scanning electron microscopy, synchronous thermal analysis, X-ray diffraction, infrared spectrometry, mechanical property tests, and contact Angle and transmittance tests. The relationship between the addition of TPS and the tensile strength, transmittance, contact angle, water absorption, and water vapor barrier of the composite film, and the influence of nano-ZnO on the mechanical properties and contact angle of the 10% TPS/PBAT composite film. Experimental results show that, after plasticizing, the crystalline form of starch changed from A-type to V-type, the functional group changed and the lipophilicity increased; the increase of TPS content, the light transmittance and mechanical properties of the composite membrane decreased, while the water vapor transmittance and water absorption increased. The mechanical properties of the composite can be significantly improved by adding nano-ZnO at a lower concentration (optimum content is 1 wt%).

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Physical and mechanical properties of modified bacterial cellulose composite films

10.1063/1.4941633 ◽

2016 ◽

Cited By ~ 6

Author(s):

Lucia Indrarti ◽

Indriyati ◽

Anung Syampurwadi ◽

Sri Pujiastuti

Keyword(s):

Mechanical Properties ◽

Bacterial Cellulose ◽

Composite Films ◽

Physical And Mechanical Properties ◽

Cellulose Composite

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Dielectric and mechanical properties of polyimide composite films reinforced with graphene nanoribbon

Surface and Coatings Technology ◽

10.1016/j.surfcoat.2016.11.049 ◽

2017 ◽

Vol 320 ◽

pp. 497-502 ◽

Cited By ~ 20

Author(s):

Xiaoxu Liu ◽

Yanpeng Li ◽

Wenmao Guo ◽

Xiaonan Sun ◽

Yu Feng ◽

...

Keyword(s):

Mechanical Properties ◽

Composite Films ◽

Graphene Nanoribbon ◽

Dielectric And Mechanical Properties

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Mechanical Properties Of Polyaniline / Multi-walled Carbon Nanotube Composite Films

MRS Proceedings ◽

10.1557/proc-791-q10.3 ◽

2003 ◽

Vol 791 ◽

Cited By ~ 4

Author(s):

P. C. Ramamurthy ◽

W. R. Harrell ◽

R. V. Gregory ◽

B. Sadanadan ◽

A. M. Rao

Keyword(s):

Mechanical Properties ◽

Carbon Nanotubes ◽

Carbon Nanotube ◽

Composite Films ◽

Weight Percent ◽

Organic Electronic Devices ◽

Multiwalled Carbon ◽

Multi Walled Carbon Nanotube ◽

Contact Devices ◽

Carbon Nanotube Composite

ABSTRACTHigh molecular weight polyaniline / multi-walled carbon nanotube composite films were fabricated using solution processing. Composite films with various weight percentages of multiwalled carbon nanotubes were fabricated. Physical properties of these composites were analyzed by thermogravimetric analysis, tensile testing, and scanning electron microscopy. These results indicate that the addition of multiwalled nanotubes to polyaniline significantly enhances the mechanical properties of the films. In addition, metal–semiconductor (composite) (MS) contact devices were fabricated, and it was observed that the current level in the films increased with increasing multiwalled nanotube content. Furthermore, it was observed that polyaniline containing one weight percent of carbon nanotubes appears to be the most promising composition for applications in organic electronic devices.

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Effect of surface nanocrystallization induced by fast multiple rotation rolling on mechanical properties of a low carbon steel

Materials & Design (1980-2015) ◽

10.1016/j.matdes.2011.10.042 ◽

2012 ◽

Vol 35 ◽

pp. 754-759 ◽

Cited By ~ 26

Author(s):

Pengfei Chui ◽

Kangning Sun ◽

Chang Sun ◽

Chengge Wu ◽

Hongyou Wang ◽

...

Keyword(s):

Mechanical Properties ◽

Carbon Steel ◽

Low Carbon Steel ◽

Low Carbon ◽

Surface Nanocrystallization ◽

Effect Of Surface

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Few-layer graphene aqueous suspensions for polyurethane composite coatings

MRS Advances ◽

10.1557/adv.2016.640 ◽

2016 ◽

Vol 2 (1) ◽

pp. 57-62 ◽

Cited By ~ 2

Author(s):

Eunice Cunha ◽

Fernando Duarte ◽

M. Fernanda Proença ◽

M. Conceição Paiva

Keyword(s):

Mechanical Properties ◽

Tensile Testing ◽

Composite Coatings ◽

Composite Films ◽

Water Vapor Permeability ◽

Waterborne Polyurethane ◽

Vapor Permeability ◽

Layer Graphene ◽

Polyurethane Composite ◽

Few Layer Graphene

ABSTRACTGraphite nanoplates (GnP) have recently attracted attention as an economically viable alternative for the development of functional and structural nanocomposites. The incorporation of GnP into waterborne polyurethane (WPU) with loadings from 0.1 to 10 wt.% was studied. The mechanical properties of the composite films were assessed by tensile testing showing an increase of the Young’s modulus up to 48%. The electrical conductivity increased by 9 orders of magnitude and the water vapor permeability of the composite films decreased 57% for composites containing 5.0 wt.% of GnP.

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