Effect of expandable graphite on flame retardant, thermal and mechanical properties of thermoplastic polyurethane composites filled with huntite&hydromagnesite mineral

Date

2017-01-10

Author

Guler, Turkan
Tayfun, Umit
Bayramlı, Erdal
DOĞAN, Mehmet

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

278
views

0
downloads

The effect of expandable graphite (EG) was studied on the flame retardant, thermal and mechanical properties of thermoplastic polyurethane (TPU) containing huntite&hydromagnesite (HH). According to the flammability tests results, the synergistic interaction was observed between HH and EG. The maximum limiting oxygen index (LOI value was observed at a ratio of 1:1 (HH:EG) and the highest vertical burning test (UL-94) rating of V0 was observed at a ratios of 4:1, 3:2 and 1:1. The synergistic interaction between EG and HH was also deduced at low percentage of EG (10%) by the help of the mass loss calorimeter test results. Mechanical test observations revealed that the inclusion of HH reduced the tensile strength and elongation at break values and increased the elastic modulus and glass transition temperature of pristine TPU. The addition of EG was further improved the elastic modulus of composites as the loaded amount of EG increased.

Subject Keywords

Mechanical properties, Expandanle graphite, Fire retardancy, Huntite&hydromagnesite, Thermoplastic polyurethane

URI

https://hdl.handle.net/11511/50759

Journal

THERMOCHIMICA ACTA

DOI

https://doi.org/10.1016/j.tca.2016.12.001

Collections

Graduate School of Natural and Applied Sciences, Article

Suggestions

OpenMETU
Core

Effect of microcapsulated red phosphorus on flame retardant, thermal and mechanical properties of thermoplastic polyurethane composites filled with huntite&hydromagnesite mineral ATABEK SAVAŞ, Lemiye; Deniz, Tugba Kaya; Tayfun, Umit; DOĞAN, Mehmet (2017-01-01) The effect of microcapsulated red phosphorus (mRP) was studied on the flame retardant, thermal and mechanical properties of thermoplastic polyurethane (TPU) composites containing Huntite&hydromagnesite (HH). The flame retardant properties of TPU based composites were investigated using limiting oxygen index (LOI), vertical burning test (UL 94), thermogravimetric analysis (TGA) and mass loss calorimeter. The mechanical properties of composites were studied using tensile test and dynamic mechanical analysis (...
Influence of zinc borate on flame retardant and thermal properties of polyurethane elastomer composites containing huntite-hydromagnesite mineral Dike, Ali Sinan; Tayfun, Umit; DOĞAN, Mehmet (2017-11-01) The effect of zinc borate (ZnB) was studied on the flame retardant and thermal properties of thermoplastic polyurethane containing huntite-hydromagnesite. The flame retardant properties of thermoplastic polyurethane-based composites were investigated using limiting oxygen index, vertical burning test (UL 94), thermogravimetric analysis, and mass loss calorimeter. No remarkable effect of ZnB was observed on the flammability properties of composites. UL 94 rating did not change regardless of the added amount ...
Effects of glass fiber reinforcement and thermoplastic elastomer blending on the mechanical performance of polylactide Varsavas, S. Deniz; Kaynak, Cevdet (2018-06-01) The purpose of this study was to investigate how optimum mechanical properties (strength-modulus-toughness) of inherently very brittle polylactide (PLA) could be obtained by reinforcing with E-glass fibers (GF) and blending with thermoplastic polyurethane elastomer (TPU). Composites and blends were compounded by twin-screw extruder melt mixing, while specimens were shaped by injection molding. SEM analyses revealed that 15 wt% GF and 10 wt% TPU domains, alone and together, could be uniformly distributed in ...
Effect of Carbon Black and/or Elastomer on Thermoplastic Elastomer-based Blends and Composites Yaşar, Mehmet Soner; Bayram, Göknur (2014-06-12) It was aimed to investigate the effect of carbon black and/or elastomer on the electrical conductivity and mechanical properties of thermoplastic elastomer (TPE). Carbon black (CB) and ethylene-glycidyl methacrylate (E-GMA) were used as additives in the main matrix. The blends and composites were characterized in terms of their electrical conductivity and mechanical properties. CB concentration was varied as 0.5, 1, 3 and 5 wt.%. In order to modify the surface of CB, paraffinic oil and silane coupling agent...
Effects of glass fiber content, 3D-printing and weathering on the performance of polylactide Varsavaş, Sakine Deniz; Kaynak, Cevdet; Department of Metallurgical and Materials Engineering (2017) The purpose of the first part of this thesis was to investigate how optimum mechanical properties (strength-modulus-toughness) of inherently very brittle polylactide (PLA) could be obtained by reinforcing with E-glass fibers (GF) and blending with thermoplastic polyurethane elastomer (TPU). Composites and blends were compounded by twin-screw extruder melt mixing, while specimens were shaped by injection molding. SEM analyses revealed that 15 wt% GF reinforcements and 10 wt% TPU domains, alone or together, c...

Citation Formats

T. Guler, U. Tayfun, E. Bayramlı, and M. DOĞAN, “Effect of expandable graphite on flame retardant, thermal and mechanical properties of thermoplastic polyurethane composites filled with huntite&hydromagnesite mineral,” THERMOCHIMICA ACTA, pp. 70–80, 2017, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/50759.