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Sodeyama, Kenichi; Sakka, Yoshio; Kamino, Yoshitaka; Seki, Hiromitsu

doi:10.1023/a:1004579120164

Cited by 66 publications

(31 citation statements)

References 11 publications

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“…By contrast alternative fillers offer new opportunities to modify the compound's property profile. Expanded perlite is a glassy, volcanic rock, which can be expanded up to 15 times of its original volume due to the chemically bound water (2 -5 wt %) [1]. This spherical filler can be used without functionalization of the filler itself or of the polymer matrix.…”

Section: Introductionmentioning

confidence: 99%

Influence of processing conditions on the morphology of expanded perlite/polypropylene composites

Mattausch

Laske

Cirar

et al. 2014

AIP Conference Proceedings

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Perlite is an oversaturated, volcanic, glassy rock, which has chemically bound water from 2 to 5 wt%. Upon heating, perlite can be expanded up to 20 times of its original volume. Important applications are in the field of building industry, in refrigeration engineering or the pharmaceutical industry. As mineral filler in polymers, expanded perlite can increase the thermal conductivity, the viscosity and the mechanical properties of polypropylene composites. But there are still many challenges that must be analyzed to reach the full potential of those composites. This research work focuses on the morphology of expanded perlite/polypropylene (PP) compounds and the interactions between filler and polymer. To achieve good performance a homogenous dispersion of the filler in the polymer matrix is needed because the enhancement of the material correlates strongly with the morphology of the composite. Therefore it is necessary to characterize the microstructure of these materials in order to establish adequate structure-process-property relationships. The expanded perlite/PP composites were compounded with a corotating twin screw extruder Theysohn TSK 30/40D. For producing the closed cell expanded perlite a new technology, the bublon process, was used. For the material characterization two particles sizes were chosen and the filler content was varied at 5, 10 and 15 wt%. For the analysis of the effects of the screw geometry, two setups have been chosen for the processing of the materials. The produced materials were analyzed by scanning electron microscope (SEM) and tensile testing. The results show a reinforcement effect of the filler and differences in the inner structure of expanded perlite and in the morphology.

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Section: Introductionmentioning

confidence: 99%

Influence of processing conditions on the morphology of expanded perlite/polypropylene composites

Mattausch

Laske

Cirar

et al. 2014

AIP Conference Proceedings

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“…This peak can also be related to the bending vibration of water molecule available in perlite . The peak at 3604 cm −1 is attributed to a combination of OH stretching arising from hydrogen‐bonded and free SiOH .…”

Section: Resultsmentioning

confidence: 99%

Investigating Thermal and Surface Properties of Low‐Density Polyethylene/Nanoperlite Nanocomposites for Packaging Applications

Heidari¹,

Davachi

Sahraeian

et al. 2018

Polymer Composites

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Nanocomposites films based on low‐density polyethylene (LDPE) and different compositions of treated and untreated nanoperlite were prepared via melt mixing of the ingredients on a corotating twin‐screw extruder and then film blowing the nanocomposites. The physical dispersion of the nanocomposites is confirmed using Fourier transform infrared‐attenuated total reflectance (FTIR‐ATR) method. According to the thermal studies, the nanocomposites with untreated nanoperlite showing higher melting temperature and crystallinity, while their thermal stability is lower than nanocomposites with treated nanoperlite. The thermal and FTIR‐ATR studies also revealed the ethylene absorption of the nanocomposites. According to the surface energy results, the treatment of the nanoparticles completely changes the surface behavior and hydrophobicity of the films. Finally, peel color index and field study observations showed that increase in nanoperlite will increase the shelf life of the fruits; however, the nanocomposite with 6% untreated nanoperlite is the best choice for the packaging applications. POLYM. COMPOS., 40:2929–2937, 2019. © 2018 Society of Plastics Engineers

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“…The peaks located at 1044 cm -1 and 791 cm -1 show Si-O stretching vibrations of Si-O-Si and Si-Al-Si, respectively. An O-Si-O bending vibration was determined at 463 cm -1 [27][28][29].…”

Section: Ftir Analysismentioning

confidence: 99%

Analyses of cement mortars containing reclaimed asphalt pavement by using DTA/TG and FTIR

2019

JCE

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Research paper Ozlem Celik Sola, Cemil Ozyazgan Analyses of cement mortars containing reclaimed asphalt pavement by using DTA/TG and FTIR The reclaimed asphalt pavement (RAP) is used in the study as a recycled material for the production of cement composite. 5 %, 10 % and 15 % of RAP was added to the cement to produce samples. TG/DTA analyses, performed after flexural analyses, revealed that the minimum mass loss occurred in the samples with 5 % RAP additive at stable conditions. The highest mass loss was 11.8 %, and the second highest value amounted to 8.2 % for samples with 15 % of C additive cured in MgSO 4 environment.

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Untitled

Cited by 66 publications

References 11 publications

Influence of processing conditions on the morphology of expanded perlite/polypropylene composites

Influence of processing conditions on the morphology of expanded perlite/polypropylene composites

Investigating Thermal and Surface Properties of Low‐Density Polyethylene/Nanoperlite Nanocomposites for Packaging Applications

Analyses of cement mortars containing reclaimed asphalt pavement by using DTA/TG and FTIR

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