How organo-montmorillonite truly affects the structure and properties of polypropylene

Ding, Chao; Jia, Demin; He, Hui; Guo, Baochun; Hong, Hao

doi:10.1016/j.polymertesting.2004.06.005

Cited by 134 publications

(95 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…According to the literature, the decomposition temperature can be studied through various points in the TGA curves. In this work, the onset of the decomposition temperature (T d5 ) was determined by the temperature at 5% weight loss [42][43][44], whilst the decomposition temperature at the point of greatest rate of change on the weight loss curve (T dmax ) was measured through the derivative weight loss curves ( Figure 10). Table 5 shows that the addition of OMMT into PBS does not produce any appreciable changes in the T d5 and T dmax .…”

Section: Thermogravimetry (Tga)mentioning

confidence: 99%

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.

View full text Add to dashboard Cite

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).

show abstract

Section: Thermogravimetry (Tga)mentioning

confidence: 99%

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.

View full text Add to dashboard Cite

show abstract

“…ΔH is a standard value and represents the enthalpy of fusion if the polymer were 100% crystalline, it has been taken to be 293J/ g for PE (LDPE and HDPE) 36,37 . MMT, in addition has minimal effects on the melting temperature of both the waste HDPE and LDPE, respectively.…”

Section: Differential Scanning Calorimetrymentioning

confidence: 99%

“…A higher decrease in the behaviours were observed with the MMT contents addition, in comparison to the OMMT content studies. The considerable reduction in the mechanical properties, at clay loadings is because of the regularly sparse MMT tactoids with the inserted structures 37 .…”

Section: Fig 7 Effect Of Clay Loading On Tensile Properties Of Ldpementioning

confidence: 99%

Mechanical and Thermal Properties of the Waste Low and High Density Polyethylene-nanoclay Composites

Hadi¹,

AbdulKadir²,

Hadi³

et al. 2018

Orient. J. Chem

View full text Add to dashboard Cite

In extension with the previous work, recycling of the waste polyolefins by dissolution/ reprecipitation method, has been investigated. The goal of study was to explore the influence of organo-modified/ unmodified sodium montmorillonite clays, on the behaviours of waste polyolefins inclusive low density polyethylene (LDPE) and high density polyethylene (HDPE). 1-5 wt % of unmodified (MMT) and Organo-modified clay (OMMT) were added to the polyolefins, to prepare polyolefin-clay nanocomposites by melt intercalation method. X-ray diffraction (XRD) and Field Emission Scanning Electron Microscope (FESEM) were used to estimate the dispersion of clay in the polymer matrices and the morphology of nanocomposites. Thermogravimetric analysis (TGA) and Differential Scanning Calorimetry (DSC) were used to analyse the change in the thermic properties of the waste polyolefins nanocomposites. The XRD and FESEM results showed an intercalated structure in the HDPE and LDPE with Organo-clay nanocomposites, whereas no exfoliation was observed with unmodified clay in both waste HDPE and LDPE, respectively. DSC and TGA, showed an improved thermal behaviours in the HDPE/Organo-clay nanocomposites (3 wt%) clay loading. Melting temperature and crystallization percentage were observed to increase in 1, 2, and 3 wt% loadings. In waste LDPE/ clay nanocomposites, no improvement was established in the thermal stability.

show abstract

“…It is known that polymer nanocomposites display electroconductive and barrier properties. The development of possible applications of polymer nanocomposites is not only correlated with their durability, barrier, and flame-retardant properties but also with their biocompatibility [1,2]. Polymer nanocomposites are obtained by introduction of, e.g., either small molecules like silicas, silica, or titania oxides or macromolecules like whisker-structure cellulose fibers or carbon nanotubes into the polymer matrix in an as well-dispersed way as possible [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Thermal and utility properties of amide clay modifying agents

Garman

Olewnik

Czerwiński

2012

J Therm Anal Calorim

View full text Add to dashboard Cite

This article presents the results of investigation into receiving amide modification agents of smectic clays, used as nanofillers in polymer nanocomposites. Prepared materials were obtained on the base of terephthalic and isophthalic acids and simple aliphatic amines. Such structure makes them good layered silicates modifying agents as well as makes them well affiliate to structure of polymers containing aromatic, carbonyl, amide, etc. groups. Obtained compounds were introduced into clays' structure in protonated form, according to formulated method. Conducted research confirmed that the modification of montmorillonite clay (MMT) with received compounds had taken place. In order to establish that fact elementary analysis and X-ray diffraction (XRD) methods were used. Modificator molecules must display thermal resistance in full range of polymer processing temperatures. To investigate these properties the Thermogravimetric analysis (TG) of obtained compounds was carried out. These studies indicate that among the obtained compounds there were the ones with thermal stability over 523 K. Thermal resistance makes it possible for these substances to be used in poly(ethylene terephthalate) processing.

show abstract

How organo-montmorillonite truly affects the structure and properties of polypropylene

Cited by 134 publications

References 14 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

Mechanical and Thermal Properties of the Waste Low and High Density Polyethylene-nanoclay Composites

Thermal and utility properties of amide clay modifying agents

Contact Info

Product

Resources

About