Mechanical properties and structure development in poly(butylene succinate)/organo-montmorillonite nanocomposites under uniaxial cold rolling

Phua, Y.J.; Chow, W. S.; Ishak, Z. A. Mohd

doi:10.3144/expresspolymlett.2011.11

Cited by 53 publications

(38 citation statements)

References 29 publications

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“…Besides that, the higher amount of grafted MA contained in C2 is able to provide higher intercalation of the OMMT galleries, which in turn provides a better dispersion of the clay platelets. The addition of stiff reinforcements, such as OMMT was able to improve both the tensile and the flexural modulus [15][16]29]. Table 3 shows that the modulus is slightly increased after the incorporation of PBS-g-MA into the nanocomposites.…”

Section: Characterizations Of Nanocomposites 321 Mechanical Testsmentioning

confidence: 89%

“…In our previous work, the effects of OMMT loading on the mechanical and rheological properties of biodegradable PBS/OMMT nanocomposites were reported. The optimum mechanical properties of PBS nanocomposites were observed at 2 wt% OMMT loading [15][16]. However, the improvement is rather limited due to the low polarity of PBS, which restricted the dispersion of clay platelets because of the absence of any strong interactions [17].…”

mentioning

confidence: 96%

“…1 and 1.5 phr. At our previous research, the optimum mechanical properties of PBS nanocomposites were observed at 2 wt% OMMT loading [15][16]. Hence, as an extension of the previous study, PBS-g-MA was added into the 2 wt% OMMT filled PBS nanocomposites, to investigate the effects of initiator content on the grafting efficiency, and its compatibilizing effects on PBS nanocomposites.…”

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confidence: 99%

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Reactive processing of maleic anhydride-grafted poly(butylene succinate) and the compatibilizing effect on poly(butylene succinate) nanocomposites

Phua¹,

Chow²,

Ishak³

2013

Express Polym. Lett.

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Abstract. In this study, maleic anhydride-grafted poly(butylene succinate) (PBS-g-MA) was synthesized via reactive meltgrafting process using different initiator contents. The grafting efficiency was increased with the initiator content, manifested by the higher degree of grafting in PBS-g-MA. The grafting reaction was confirmed through Fourier transform infrared (FTIR) spectroscopy and nuclear magnetic resonance (NMR) spectroscopy. Then, PBS-g-MA was incorporated into organo-montmorillonite (OMMT) filled poly(butylene succinate) (PBS) nanocomposites as compatibilizer. Mechanical properties of PBS nanocomposites were enhanced after compatibilized with PBS-g-MA, due to the better dispersion of OMMT in PBS matrix and the improved filler-matrix interfacial interactions. This was verifiable through X-ray diffraction (XRD), transmission electron microscopy (TEM) and scanning electron microscopy (SEM). Differential scanning calorimetry (DSC) showed that the degree of crystallinity and melting temperature increased after addition of PBS-g-MA. However, the presence of PBS-g-MA did not favor the thermal stability of the nanocomposites, as reported in the thermogravimetry (TGA).

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Section: Characterizations Of Nanocomposites 321 Mechanical Testsmentioning

confidence: 89%

mentioning

confidence: 96%

mentioning

confidence: 99%

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Reactive processing of maleic anhydride-grafted poly(butylene succinate) and the compatibilizing effect on poly(butylene succinate) nanocomposites

Phua¹,

Chow²,

Ishak³

2013

Express Polym. Lett.

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“…Crystallization, H f100 of PBS is 110.3 J/g [9] W f = Weight fraction of fiber Morphology of the composites was investigated from surface of impact fractured specimens by scanning electron microscope (JEOL-JSM-6510). Gold was sputtered on the specimens for electron conductivity and avoid specimen charging.…”

Section: Sample Preparationmentioning

confidence: 99%

“…Mechanical and physical properties of polymer composites are depended on their crystallization behavior [5][6][7][8][9]. The crystallization kinetic study is useful to describe the crystallization characteristics of the composites, which uses for understanding mechanical performance and physical properties of the composites.…”

Section: Introductionmentioning

confidence: 99%

Crystallization kinetics and thermal resistance of bamboo fiber reinforced biodegradable polymer composites

Thumsorn

Srisawat

on³

et al. 2014

AIP Conference Proceedings

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Bamboo fiber reinforced biodegradable polymer composites were prepared in this study. Biodegradable poly(butylene succinate) (PBS) was blended with bamboo fiber in a twin screw extruder with varied bamboo content from 0 -20 wt%. PBS/bamboo fiber composites were fabricated by compression molding process. The effect of bamboo fiber contents on properties of the composites was investigated. Non-isothermal crystallization kinetic study of the composites was investigated based on Avrami equation. The kinetic parameters indicated that bamboo fiber acted as heterogeneous nucleation and enhanced crystallinity of the composites. Bamboo fiber was well dispersed on PBS matrix and good adhered with the matrix. Tensile strength of the composites slightly deceased with adding bamboo fiber. However, tensile modulus and impact strength of the composites increased when increasing bamboo fiber contents. It can be noted that bamboo fiber promoted crystallization and crystallinity of PBS in the composites. Therefore, the composites were better in impact load transferring than neat PBS, which exhibited improving on impact performance of the composites.

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Polyoxymethylene Processing

Pielichowska¹

2014

Polyoxymethylene Handbook

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In this chapter major issues of polyoxymethylene (POM) and its nanocomposites processing are presented. Diff erent processing methods-injection molding, extrusion, blow molding, melt blowing, compression molding, rolling, sintering and spinning-as well as fabrication of highly oriented products, waste recycling, machining and assembling of moldings and semi-fi nished parts are described in regard to POM, which is an important engineering polymer used as structural material in all industrial sectors. However, processing of POM requires special attention since this polymer undergoes facile decomposition with evolution of formaldehyde. Some of the processing methods are for POM at infancy stage, such as electrospinning, due to poor solubility of this polymer in common solvents. Only recently has the successful electrospinning of polyoxymethylene nanofi bers with porous surface using a hexafl uoroisopropanol (HFIP)-based solvent been reported on. Polyoxymethylene types include impact modifi ed, fi lled and reinforced polymers in a wide range of sorts-this diversity may cause some problems during recycling by recompounding and remelting where extensive POM decomposition should be avoided because of formaldehyde release.

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Mechanical properties and structure development in poly(butylene succinate)/organo-montmorillonite nanocomposites under uniaxial cold rolling

Cited by 53 publications

References 29 publications

Reactive processing of maleic anhydride-grafted poly(butylene succinate) and the compatibilizing effect on poly(butylene succinate) nanocomposites

Reactive processing of maleic anhydride-grafted poly(butylene succinate) and the compatibilizing effect on poly(butylene succinate) nanocomposites

Crystallization kinetics and thermal resistance of bamboo fiber reinforced biodegradable polymer composites

Polyoxymethylene Processing

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