Preparation and thermal properties of polyethylene terephthalate/huntite–hydromagnesite composites

Baştürk, Emre; Madakbaş, Seyfullah; Karadoğan, Betül; Kahraman, Memet Vezi̇r

doi:10.1002/pc.23526

Cited by 9 publications

(1 citation statement)

References 24 publications

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“…It is mostly found in nature as a mixture of hydromagnesite and while the chemical formula of huntite is Mg 3 Ca(CO 3 ) 4 , the chemical formula of hydromagnesite is Mg 5 (CO 3 ) 4 (OH) 2 ·4H 2 O. Because of its thermal behavior, huntite mineral is widely used as a flame retardant [ 15 – 17 ]. Many composite studies are carried out by using huntite as an additive.…”

Section: Introductionmentioning

confidence: 99%

Structural and dielectrical behavior of polypyrrole/huntite composites

Türk¹,

Şahin²,

Madakbaş³

et al. 2023

Turkish Journal of Chemistry

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In order to characterize stable composites that will contribute to industrial applications, polypyrrole (PPy)/huntite composites were prepared by the physical method. Polypyrrole (PPy)/huntite composites were produced at various huntite concentrations (10, 20, 30, 40 wt.%). Polypyrrole/huntite was characterized by Fourier transform infrared spectroscopy (FTIR), Thermal Gravimetric Analyses (TGA), Differential Thermal Analyses (DTA), Scanning electron microscopy (SEM), and dielectrical properties were investigated by Impedance Analyzer at the room temperature. The FTIR spectra show that huntite mineral coordinate with polymers through carbonate groups. TGA results indicate the main cause of mass loss can be moisture in the samples and unreacted pyrrole monomer. SEM images show that the composites have a granular and spherical geometry. Dielectric measurements showed that at lower frequencies dielectric constants decrease exponentially with an increase in frequency and this behavior indicates that the effect of interfacial polarization becomes more predominant at a lower frequency.

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Section: Introductionmentioning

confidence: 99%

Structural and dielectrical behavior of polypyrrole/huntite composites

Türk¹,

Şahin²,

Madakbaş³

et al. 2023

Turkish Journal of Chemistry

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High‐efficiency modification of PET by the low addition of a self‐assembled functional nanocellulose film prepared from waste paper

Lei,

Hou,

Fang

et al. 2024

Polymer Composites

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Polyethylene terephthalate (PET) is a conventional packaging material. Its modification has attracted immense attention in the industry and academia. Here, office waste paper, white cardboard waste, and waste corrugated paper were first employed as raw materials for cellulose nanocrystal (CNC) extraction by acid hydrolysis. Thereafter, CNC/PET composite films with various CNC additions were prepared via a self‐assembly technique. The results revealed that the CNCs formed a self‐assembled film on the PET surface via the synergistic effect of the complex interactions among the CNCs as well as between the CNCs and PET. Moreover, the CNCs improved the barrier property of PET and decreased the oxygen and water vapor transmittances of CNC/PET by 30.7% and 21.7%, respectively. Additionally, the coating of the PET surface with 0.2 wt.% CNCs extracted from the waste paper decreased the surface wettability of PET, exhibiting application potentials in the hydrophobic modification of polymers. This study realized waste paper recycling and provided a basis for constructing self‐assembled functional films on PET surfaces. The findings and insights of this study could exhibit application potentials in the fields of waste recycling and packaging materials.Highlights A functional cellulose nanocrystal (CNC) film is prepared from waste paper. Self‐assembled CNC is coated on a PET surface to form a CNC/PET composite film. The synergistic interactions among CNCs and between CNC and PET modified PET. The low addition of CNCs realized the efficiency modification of PET. The study achieves waste paper recycling and high‐value utilization.

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