Interfacial enhancement of flexible PVC-silica composites by silane coupling agents

Ulutan, Sevgi; Balköse, Devri̇m

doi:10.1163/156855497x00181

Cited by 7 publications

(13 citation statements)

References 12 publications

(24 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The sheets had up to 7.3% empty volume which could be attributed incomplete air removal due to high viscosity of the plastisol. The composites absorbed 1.92 to 6.07% water from liquid water as their silica content increased 20 .…”

Section: Structure Of Compositesmentioning

confidence: 99%

Flexible Pvc-Silica Composites as An Adsorptive Material for Water Soluble Dyes

Ulutan

Yetgin

Balköse

2013

Polymers and Polymer Composites

Self Cite

View full text Add to dashboard Cite

SUMMARyMethylene Blue (MB) adsorption studies were performed on flexible Polyvinyl Chloride/Silica composites which were obtained by using plastisol-plastigel technology. Change of MB concentration in aqueous phase as the adsorption process advanced was followed by using visible spectroscopy. The diffusion of MB through the composites exhibited non-Fickian behavior with a diffusivity of 10 -11 m 2 s -1. Making use of such PVC-silica composite sheets as column packing, the packing time will be reduced and the surface available for diffusion will be increased.

show abstract

Section: Structure Of Compositesmentioning

confidence: 99%

Flexible Pvc-Silica Composites as An Adsorptive Material for Water Soluble Dyes

Ulutan

Yetgin

Balköse

2013

Polymers and Polymer Composites

Self Cite

View full text Add to dashboard Cite

show abstract

“…There are many studies dealing with the use of zeolite as reinforcing agent for polymer, in which both uncalcined and calcined zeolites have been tested [8][9]. In previous study [10], it was reported that reinforcement of PP with zeolites led to significant improvement in the mechanical properties, and the samples reinfroced with calcined zeolites exhibit better properties.…”

Section: Introductionmentioning

confidence: 99%

Mechanical and Thermal Properties of Polypropylene Reinforced by Calcined and Uncalcined Zeolite

Bukit¹

2013

MST

View full text Add to dashboard Cite

This study was carried out to compare mechanical and thermal properties of polypropylene (PP) reinforced with uncalcined and calcined zeolites. The PP samples were reinforced with zeolites at various quantities of 2, 4, and 6 (wt %). The comparison of the two types of zeolite was based on mechanical properties, including tensile strength, elongation at break, and Young's modulus, and thermal characteristics analyzed using DSC, and DTA/TGA technique. The results obtained clearly revealed that both zeolites were able to significantly increase tensile strength and Young's modulus of the samples, with calcined zeolite was found to work better. Addition of calcined zeolite was found to result in increased fracture elongation of the samples reinforced with up to 4 wt% zeolite but decreased sharply for the sample reinforced with 6 wt% zeolite, while for the samples reinforced with uncalcined zeolite, no consistent trend was observed. Thermal analyses demonstrated that the samples reinforced with calcined zeolite are more resistant to thermal treatment than those reinforced with uncalcined zeolite, as indicated by their higher decomposition temperature. DSC analysis revealed that there was no significant difference of the melting points of the samples was observed, but the effect of the quantity of zeolite on enthalphy was quite evident, in which the enthalpies of the samples reinforced with calcined zeolites were relatively lower than those of the samples reinforced with uncalcined zeolites. Abstrak Sifat Mekanik dan Termal dari Polipropilena Diperkuat dengan Zeolit Tanpa Kalsinasi dan Zeolit Kalsinasi.Penelitian ini bertujuan untuk membandingkan zeolite tanpa kalsinasi dan yang dikalsinasi sebagai penguat polipropilena (PP). Sampel PP diperkuat dengan zeolite dengan jumlah yang berbeda, yakni 2, 4, dan 6% berat. Sifat mekanik yang diamati adalah kekuatan tarik, perpanjangan putus dan modulus Young. Sifat termal dianalisis dengan menggunakan DSC dan DTA/TGA. Dari hasil penelitian ini diperoleh kekuatan tarik dan modulus Young zeolit kalsinasi meningkat. Perpanjangan putus pada penambahan zeolit sampai 4% mengalami peningkatan namun terjadi penurunan pada penambahan 6%. Zeolit tanpa kalsinasi menunjukan perpanjangan putus lebih rendah dari zeolit kalsinasi. Analisis termal dengan DTA/TGA pada zeolit kalsinasi memiliki daya tahan termal lebih tinggi dibandingkan dengan zeolit tanpa kalsinasi, yang ditandai dengan peningkatan temperatur dekomposisi zeolit kalsinasi. Dari analisis DSC didapatkan bahwa tidak ada perbedaan yang sigifikan antara titik lebur sampel, namun sampel yang diberi zeolite kalsinasi memiliki entalpi yang relatif lebih rendah.

show abstract

“…In spite of the advantages of the fillers, the incorporation of the hydrophilic fillers into PP leads to the loss in the mechanical properties and also the changes in the thermal properties of PP. However, the mechanical properties of polymer composites can be improved by using silane coupling agents as those reported in the literature [1][2][3][4][5][6][7].Also, the previous study done by our group on the effects of interfacial interactions on the mechanical properties of PP-natural zeolite composites has indicated that silane coupling agents provide significant improvement in the mechanical properties of the composites [8]. Furthermore, although there are many studies related to the effects of silane coupling agents on the mechanical properties of polymer composites [1][2][3][4][5][6][7][8], the number of studies related to the effects of filler modification on the thermal properties of the composites is limited [9][10][11].…”

mentioning

confidence: 99%

mentioning

confidence: 99%

See 1 more Smart Citation

The effects of natural zeolite and silane coupling agents on melting and crystallization behaviour of polypropylene

Başalp

Tıhmınlıoğlu

2008

J Therm Anal Calorim

View full text Add to dashboard Cite

Polypropylene (PP) is one of the most important commercial polymers due to its superior properties such as high chemical resistance and low density. Fillers (CaCO 3 , Mg(OH) 2 , talc, mica, etc.) or reinforcing agents (glass fibre) are used in many applications of PP such as in household, automotive and packaging industry to enhance the properties of PP (stiffness, gas permeability, heat resistance, flame retardance, etc.), and to reduce the cost. In spite of the advantages of the fillers, the incorporation of the hydrophilic fillers into PP leads to the loss in the mechanical properties and also the changes in the thermal properties of PP. However, the mechanical properties of polymer composites can be improved by using silane coupling agents as those reported in the literature [1][2][3][4][5][6][7].Also, the previous study done by our group on the effects of interfacial interactions on the mechanical properties of PP-natural zeolite composites has indicated that silane coupling agents provide significant improvement in the mechanical properties of the composites [8]. Furthermore, although there are many studies related to the effects of silane coupling agents on the mechanical properties of polymer composites [1][2][3][4][5][6][7][8], the number of studies related to the effects of filler modification on the thermal properties of the composites is limited [9][10][11].Thermal behaviour of polymer composites is important in the determination of end use applications and processing methods of polymer articles. Generally, thermal degradation and crystalline properties of polymer composites can be analyzed by thermogravimetric analysis (TG) and differential scanning calorimetry (DSC) [12][13][14]. In this study, it was aimed to investigate the effect of silane coupling agents and natural zeolite on the thermal properties of PP using DSC and TG. Particularly, non-isothermal crystallization kinetics of the natural zeolite filled PP composites was investigated to determine the effect of cooling conditions on crystallization properties. The crystallization properties affect mechanical and transport properties of polymer composites [15][16][17]. Because of the importance of crystallization process, non-isothermal crystallization kinetics also was investigated using Avrami and Kissinger models for the determination of spherulite growth rate and crystallization activation energy, respectively. Theory Characterization of polymer composites by TGTG is based on the mass loss of a sample due to the formation of volatile products as a function of temperature. TG is used to characterize the decomposi- Analysis and Calorimetry, Vol. 94 (2008) 3, 757-765 The thermal characterization of polypropylene (PP) composites containing untreated and treated zeolite with different silane coupling agents was carried out using thermogravimetric analysis (TG) and differential scanning calorimetry (DSC) to investigate the effects of natural zeolite and surface modifiers on melting, crystallization and degradation behaviour of PP. 3-aminopro...

show abstract

Interfacial enhancement of flexible PVC-silica composites by silane coupling agents

Cited by 7 publications

References 12 publications

Flexible Pvc-Silica Composites as An Adsorptive Material for Water Soluble Dyes

Flexible Pvc-Silica Composites as An Adsorptive Material for Water Soluble Dyes

Mechanical and Thermal Properties of Polypropylene Reinforced by Calcined and Uncalcined Zeolite

The effects of natural zeolite and silane coupling agents on melting and crystallization behaviour of polypropylene

Contact Info

Product

Resources

About