Dispersed phase morphology and fractionated crystallization of high-density polyethylene in PET/HDPE blends

Mbarek, Souad; Jaziri, Mohamed; Chalamet, Yvan; Elleuch, Boubaker; Carrot, Christian

doi:10.1007/s12289-008-0386-4

Cited by 3 publications

(4 citation statements)

References 41 publications

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“…Moreover, the crystallization peaks of PA 6 in P1 samples are much wider than other samples. As pointed out in literature, 36 this peculiar crystallization behavior can be related with fractionalized crystallization, which has relation with the size of dispersing phase and compatibilizer. Because iPP component is still in the melt state during the crystallization process of PA 6, the nucleating effect for PA 6 has to be attributed to MWCNTs-supported calcium pimelate.…”

Section: Tests and Characterizationmentioning

confidence: 66%

Effect of carbon nanotube‐supported β nucleating agent on the thermal properties, morphology, and mechanical properties of polyamide 6/isotactic polypropylene blends

Wang

Zhan

et al. 2011

J of Applied Polymer Sci

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A new kind of b nucleating agent, multi-wall carbon nanotube (MWCNT)-supported calcium pimelate was introduced into polyamide 6 (PA 6)/isotactic polypropylene (iPP; 10/90 by weight) blend and the thermal properties, morphology, and mechanical properties were investigated. The results showed that b-iPP appeared at low content of MWCNT-supported calcium pimelate which surmounted the a-nucleating effect of PA 6 for iPP, and the content of b-iPP increased with increasing content of MWCNTsupported calcium pimelate. The impact strength, elongation at break, and flexural modulus were improved with increasing content of MWCNT-supported calcium pimelate without significantly deteriorating the tensile strength.

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Section: Tests and Characterizationmentioning

confidence: 66%

Effect of carbon nanotube‐supported β nucleating agent on the thermal properties, morphology, and mechanical properties of polyamide 6/isotactic polypropylene blends

Wang

Zhan

et al. 2011

J of Applied Polymer Sci

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“…For PE150K, a bimodal distribution of domains is observed with small droplets coexisting with larger ones. The thermal properties and especially the consequences on the fractionated crystallization have been discussed in our previous article 19, 20. It was shown that for the blend containing the high molecular weight PE, the compatibilizer does not induce any change in the thermograms in comparison to the blends with lower molecular weight HDPE where significant fractionated crystallization occurs.…”

Section: Resultsmentioning

confidence: 97%

“…Consequences of these morphologies on the specific process of fractionated crystallization of HDPE within the droplets have been reported and discussed elsewhere. 19,20 Anyway, it has been shown that even if the process and temperatures of crystallization or HDPE are changed, the global crystal content of HDPE remains unchanged. Crystallization of PET is not affected by the process within the range of concentration under investigation.…”

Section: Effect Of Hdpe Molecular Weight On the Morphology Of Pet/hdpmentioning

confidence: 99%

“…The thermal properties and especially the consequences on the fractionated crystallization have been discussed in our previous arti-cle. 19,20 It was shown that for the blend containing the high molecular weight PE, the compatibilizer does not induce any change in the thermograms in comparison to the blends with lower molecular weight HDPE where significant fractionated crystallization occurs. This was consistent with the SEM pictures showing little size reduction due to the lowering of the interfacial tension in this later case.…”

Section: Effect Of the Drying Protocol Of The E-gma Compatibilizer Onmentioning

confidence: 99%

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Effect of the viscosity ratio on the morphology and properties of PET/HDPE blends with and without compatibilization

Mbarek

Jaziri

Chalamet

et al. 2010

J of Applied Polymer Sci

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The influence of the molecular weight of polyethylene on the morphology and mechanical properties of blends of high-density polyethylene (HDPE) dispersed as droplets in a poly(ethylene terephthalate) (PET) matrix at various compositions was investigated. The difference of morphologies can be easily explained by the influence of the molecular weight on the viscosity ratio and therefore, on the critical capillary number. The compatibilizing efficiency of copolymers containing glycidyl methacrylate groups was also addressed in relation to their nature, the protocol for their drying and the molecular weight of the HDPE phase. The increase of adhesion between PET and HDPE was found to have a larger influence on tensile properties than the reduction of interfacial tension. The amount of compatibilizer needed for adhesion improvement depends on the interfacial area that is defined by both the interfacial tension and viscosity ratio of the components. A qualitative relation between the optimum amount of compatibilizer and the critical capillary number can be written.

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Morphology and Mechanical Properties of High Density Polyethylene and Ethylene-Methyl Acrylate Copolymer Blends with Organoclay

Wacharawichanant,

Chaweejan,

Boonsrinui

et al. 2023

MSF

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In this research, the effect of ethylene-methyl acrylate copolymer (EMAC or EMAC30) and clay surface modified with aminopropyltriethoxysilane 0.5-5 wt% and octadecylamine 15-35 wt% (Clay-ASO) on the morphological, mechanical, and thermal properties of high density polyethylene (HDPE) were investigated. The polymer blends and composites were prepared by an internal mixer and then samples were molded by compression molding. The morphology analysis showed that the presence of fibrous surface at the specimen fracture surface of HDPE/EMAC30 blends. The phase morphology of HDPE blends with Clay-ASO 3, 5 and 7 phr was observed the phase separation of EMAC30 and aggregate of Clay-ASO at high EMAC30 content. Young’s modulus of HDPE/Clay-ASO composites increased with increasing Clay-ASO composites. The presence of Clay-ASO did not improve Young’s modulus and tensile strength of HDPE/EMAC30/Clay-ASO composites. The strain at break of HDPE/EMAC30 blends increased with increasing EMAC30 content. The incorporation of EMAC30 and Clay-ASO had no effect on the melting temperature of HDPE blends and composites, respectively. The percent crystallinity of HDPE/EMAC30 and HDPE/EMAC30/Clay-ASO was lower than that of pure HDPE. The addition of EMAC30 and Clay-ASO decreased the degradation temperatures of HDPE/EMAC30 blends and composites.

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Dispersed phase morphology and fractionated crystallization of high-density polyethylene in PET/HDPE blends

Cited by 3 publications

References 41 publications

Effect of carbon nanotube‐supported β nucleating agent on the thermal properties, morphology, and mechanical properties of polyamide 6/isotactic polypropylene blends

Effect of carbon nanotube‐supported β nucleating agent on the thermal properties, morphology, and mechanical properties of polyamide 6/isotactic polypropylene blends

Effect of the viscosity ratio on the morphology and properties of PET/HDPE blends with and without compatibilization

Morphology and Mechanical Properties of High Density Polyethylene and Ethylene-Methyl Acrylate Copolymer Blends with Organoclay

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