Characterization of microstructure of polyethylenes by differential scanning calorimetry

Tsukame, Takahiro; Ehara, Yasushi; Shimizu, Yasuko; Kutsuzawa, Michio; Saitoh, Hirokazu; Shibasaki, Yoshio

doi:10.1016/s0040-6031(97)00132-9

Cited by 31 publications

(14 citation statements)

References 5 publications

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“…5). This is consistent with the employment of high density PE (HDPE), while if a shoulder appeared in the thermogram, that was an indication that HDPE had been blended with low density PE (LDPE) [18] (Fig. 6).…”

Section: Resultssupporting

confidence: 79%

A quantitative differentiation method for plastic bags by infrared spectroscopy, thickness measurement and differential scanning calorimetry for tracing the source of illegal drugs

Causin

Marega

Carresi³

et al. 2006

Forensic Science International

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Section: Resultssupporting

confidence: 79%

A quantitative differentiation method for plastic bags by infrared spectroscopy, thickness measurement and differential scanning calorimetry for tracing the source of illegal drugs

Causin

Marega

Carresi³

et al. 2006

Forensic Science International

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“…The literature shows that the occurrence of a single intermediate melting peak, and sometimes a difference in crystallinity, would be observed when polyethylene blend components can cococrystallize. 2,[12][13][14][15][16] In conventional LLDPE, the low molecular weight, high comonomer fractions have a heterogeneous distribution, and consequently, the folding of these polymer chains during crystallization is not uniform, resulting thicker lamellae with a relatively low number of tie molecules. These tie molecules pass through crystalline lamellae into amorphous regions producing interphase bonding.…”

Section: Pop/pc-lldpe Blendsmentioning

confidence: 99%

Highly filled polyolefin plastomer formulations for possible PVC replacement in flooring

Bani-Hani¹,

Banu²,

Campanelli³

et al. 1999

J. Appl. Polym. Sci.

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Calcium carbonate highly filled composites of a polyolefin plastomer (POP), and its blends with postconsumer linear low-density or high-density polyethylene (PC-LLDPE or PC-HDPE) were prepared and evaluated. The mechanical properties of compounded POP and its blends were compared with those of a PVC-calcium carbonate formulation used for flooring applications. Tensile and impact properties of calcium carbonate-filled POP composites compare very favorably to the PVC-based formulation at filler loadings as high as 200 phr. Moreover, postconsumer LLDPE or HDPE can replace at least 50% of the POP in these composites without affecting their main properties. DSC analyses indicate that the synergism occurring in mechanical properties for some of the blend compositions, may be related to the ability of the individual polymers to cocrystallize in the respective blends. This article presents the results of a preliminary study. Continued research is expected to contribute toward a complete characterization of the compounded POP/postconsumer PE blends to establish if they can replace plasticized PVC compounds in some or all flooring applications.

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“…Hay numerosos estudios sobre la morfología y cristalización de las blendas de LDPE-LLDPE (producido por catalizadores Ziegler-Natta) [102][103][104][105][106][107][108] y de esta bibliografía se puede formular las siguientes conclusiones:…”

Section: Blendas De Poliolefinasunclassified

“…Dicha estructura intermedia se atribuye a un enmarañamiento de las cadenas de PE. [107] Blendas de polietilenos ____________________________________________________________________________________ …”

Section: Blendas De Poliolefinasunclassified

“…[105] • La cristalización del LLDPE desde el estado fundido genera esferulitas de volumen lleno en cuyo interior cristaliza el LDPE. [105][106][107][108][109][110] Ello conducirá a una leve depresión del punto de fusión del LLDPE pero virtualmente no tendrá efecto en el del LDPE. En este tipo de blendas la cristalinidad total se encontró que era independiente de la composición.…”

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Contribución al estudio de la degradación ambiental de poliolefinas fotoestabilizadas.

Arbona¹

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Characterization of microstructure of polyethylenes by differential scanning calorimetry

Cited by 31 publications

References 5 publications

A quantitative differentiation method for plastic bags by infrared spectroscopy, thickness measurement and differential scanning calorimetry for tracing the source of illegal drugs

A quantitative differentiation method for plastic bags by infrared spectroscopy, thickness measurement and differential scanning calorimetry for tracing the source of illegal drugs

Highly filled polyolefin plastomer formulations for possible PVC replacement in flooring

Contribución al estudio de la degradación ambiental de poliolefinas fotoestabilizadas.

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