The effect of cross-linking on the thermal properties of LDPE/wax blends

Mtshali, Thato N.; Krupa, Igor; Luyt, A. S.

doi:10.1016/s0040-6031(01)00636-0

Cited by 49 publications

(34 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The calorimetric curves of PE and XPE (Fig. 3) are modified by the presence of the peroxide, even with the lower peroxide concentration, producing a decrease of the melting temperature as well as the melting peak area which indicates that crosslinking occurs, in good agreement with data reported by Mtshali et al [23]. These authors explained the decrease in the area of the melting peak as a consequence of a reduction in crystallinity, and the shift to lower temperatures of the melting peak by a reduction of lamellar thickness of crystallites.…”

Section: Resultssupporting

confidence: 90%

Thermal and catalytic pyrolysis of crosslinked polyethylene

Marcilla

Ruiz‐Femenia

Hernández

et al. 2006

Journal of Analytical and Applied Pyrolysis

View full text Add to dashboard Cite

Section: Resultssupporting

confidence: 90%

Thermal and catalytic pyrolysis of crosslinked polyethylene

Marcilla

Ruiz‐Femenia

Hernández

et al. 2006

Journal of Analytical and Applied Pyrolysis

View full text Add to dashboard Cite

“…The lower ΔH f and higher T g further confirm that the PVA was effectively crosslinked by MA. The higher T g and lower crystallinity after crosslinking are due to the restricted segmental motion of the molecules, a phenomenon commonly observed in most polymers (Kim et al 1992;Mtshali et al 2001). Figure 4 (b) presents typical DSC thermograms of (a) HNTs-PVA nanocomposites and (b) MA crosslinked HNTs-PVA nanocomposites.…”

Section: Field Emission Scanning Electron Microscopymentioning

confidence: 91%

Physical Properties of Halloysite Nanotubes-Polyvinyl Alcohol Nanocomposites Using Malonic Acid Crosslinked

Gaaz¹,

Hussein²,

Al-Amiery³

2017

JKUKM

View full text Add to dashboard Cite

show abstract

“…The lower crystallinity is largely because of the cross-links formed in the PVA that restrict crystallization. The crosslinks are also known to play the role of defect centers impeding the folding of the macromolecular chains, and thus decrease the size of the crystals [44,45].…”

Section: Wxrd Of Bc Pva and Their Highly Cross-linked Specimensmentioning

confidence: 99%

Bacterial cellulose-based membrane-like biodegradable composites using cross-linked and noncross-linked polyvinyl alcohol

Qiu

Netravali

2012

J Mater Sci

View full text Add to dashboard Cite

Bacterial cellulose (BC)-based membrane-like biodegradable composites were produced by immersing wet BC pellicles in polyvinyl alcohol (PVA) solution. The BC content in the BC-PVA composites can be adjusted by varying the concentration of PVA solution. Chemical cross-linking of PVA was carried out using glutaraldehyde to increase the mechanical properties of the composites as well as to make the PVA partially to highly water insoluble. Examination by scanning electron microscopy indicated that the PVA not only penetrated the BC network, but also filled the pores within the BC pellicle. Attenuated total reflectance-Fourier transform infrared spectroscopy showed that acetal linkages could be formed in the BC-PVA composites by a cross-linking reaction. Sol-gel results indicated that cross-linking reaction increasingly made PVA insoluble in water resulting in higher gel (crosslinked fraction) content in the PVA. Wide-angle X-ray diffraction results showed decreased crystallinity in crosslinked BC and PVA, as expected. It was also found that crystal size was smaller in PVA after cross-linking. The BC-PVA composites had excellent tensile properties and cross-linking increased these properties further. Thermogravimetric analysis showed higher thermal stability for BC-PVA composites compared to PVA. The cross-linked specimens, especially the highly cross-linked ones, showed even higher thermal stability. The methods developed in this study make it possible to control the PVA content in the composites as well as the cross-linking level of PVA. These composites could be good candidates for replacing traditional non-biodegradable plastics.

show abstract

The effect of cross-linking on the thermal properties of LDPE/wax blends

Cited by 49 publications

References 18 publications

Thermal and catalytic pyrolysis of crosslinked polyethylene

Thermal and catalytic pyrolysis of crosslinked polyethylene

Physical Properties of Halloysite Nanotubes-Polyvinyl Alcohol Nanocomposites Using Malonic Acid Crosslinked

Bacterial cellulose-based membrane-like biodegradable composites using cross-linked and noncross-linked polyvinyl alcohol

Contact Info

Product

Resources

About