Mechanical, Thermal and Morphological Characterization of High-Density Polyethylene and Vermiculate Composites

Oliveira, Iara Thais D.; Visconte, Leila L. Y.; Vendramini, Ana Lucia A.

doi:10.1080/00914030903035345

Cited by 4 publications

(1 citation statement)

References 11 publications

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“…Oliveira et al 13 evaluated the effect of VMT clay on the thermal and morphological properties of high-density polyethylene (HDPE)/VMT composites. The authors observed a decrease in the degree of crystallinity of HDPE with the increase in VMT content and the presence of VMT increased the thermal stability of HDPE.…”

Section: Introductionmentioning

confidence: 99%

Effect of the organically modified vermiculite clay loading on the rheological and flammability properties of biopolyethylene/vermiculite clay biocomposites

Hanken

Cavalcanti

Araújo

et al. 2019

Journal of Thermoplastic Composite Materials

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In this work, the effect of the vermiculite (VMT) clay loading on the rheological properties and flammability of bio-based high-density polyethylene/organically modified VMT (BioHDPE/OVMT) clay biocomposites containing 0.5–10 phr of OVMT clay was investigated. X-ray diffraction patterns showed that the BioHDPE was intercalated between the OVMT clay galleries. BioHDPE/OVMT biocomposites containing 5 and 10 phr of OVMT clay exhibited a shear-thinning behavior and a better dispersion/distribution in the BioHDPE matrix. The biocomposite containing 10 phr of organoclay presented a percolated network structure. The elastic modulus increased with the increase in the OVMT loading whereas the tensile and impact strength remained almost unaffected. For the biocomposites containing the unmodified VMT clay, the burning rate decreased with the increase in the VMT loading. The opposite was observed for the biocomposites containing OVMT clay.

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Section: Introductionmentioning

confidence: 99%

Effect of the organically modified vermiculite clay loading on the rheological and flammability properties of biopolyethylene/vermiculite clay biocomposites

Hanken

Cavalcanti

Araújo

et al. 2019

Journal of Thermoplastic Composite Materials

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Polyamide 6–wheat straw composites: Effects of additives on physical and mechanical properties of the composite

2012

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Polyamide 6 was modified with lithium chloride (LiCl) salt and N‐butyl benzenesulfonamide (N‐BBSA) plasticizer (additives). The modification was done in order to develop an environmentally friendly composite, composed of wheat straw (WS). A 15 wt% of ground WS was compounded with Polyamide 6 along with the additives. Addition of LiCl decreased the melting point of the matrix, allowing for a lower compounding temperature. However, a pseudo‐crosslinking formation upon addition of salt limited the polymer chain movement and restricted the processing temperature. LiCl addition increased the tensile and flexural modulus of the composite, but decreased the tensile and flexural strength. Decrease in the strength was found to be related to the increase in the residence time of material during extrusion causing severe WS thermal degradation. Addition of N‐BBSA eased the processing due to lubrication effect, however, when used in excess, lowered the flexural modulus and strength. Addition of WS to Polyamide 6 increased the modulus of the matrix. Matrix tensile modulus and flexural modulus were enhanced by 27%; however, a decrease in strength of the matrix was obtained. Addition of WS, LiCl, and plasticizer lowered the impact properties of Polyamide 6. It was concluded that combination of 2 wt% LiCl and of 2 wt% N‐BBSA gives the best mechanical properties. POLYM. COMPOS., 2012. © 2012 Society of Plastics Engineers

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Effect of natural and expanded vermiculite clays on the properties of eco-friendly biopolyethylene-vermiculite clay biocomposites

Hanken

Arimatéia

Farias

et al. 2019

Composites Part B: Engineering

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Mechanical, Thermal and Morphological Characterization of High-Density Polyethylene and Vermiculate Composites

Cited by 4 publications

References 11 publications

Effect of the organically modified vermiculite clay loading on the rheological and flammability properties of biopolyethylene/vermiculite clay biocomposites

Effect of the organically modified vermiculite clay loading on the rheological and flammability properties of biopolyethylene/vermiculite clay biocomposites

Polyamide 6–wheat straw composites: Effects of additives on physical and mechanical properties of the composite

Effect of natural and expanded vermiculite clays on the properties of eco-friendly biopolyethylene-vermiculite clay biocomposites

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