Effects of mixing sequence on epoxy/polyether polyol/organoclay ternary nanocomposites

Date

2020-09-01

Author

Isik-Gulsac, Isil
YILMAZER, ÜLKÜ
Bayram, Göknur

Metadata

Show full item record

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

Item Usage Stats

62
views

0
downloads

The effects of mixing sequence of the polyether polyol and curing agent (triethylenetetramine) on mechanical and thermal properties and morphology of epoxy/polyether polyol/organoclay ternary nanocomposites are investigated in this study. The polyether polyol domain size data are relatively unchanged with mixing order both in epoxy/polyether polyol blends and in ternary nanocomposites. Generally, impact strength data of the ternary nanocomposites prepared by the second addition order are higher than the ones produced by the first addition order. Flexural strength and strain at break may be accepted as unaltered generally for the ternary nanocomposites with respect to addition order. Except for the sample containing 3 wt-% Cloisite(R) 30B and 3 wt. % polyether polyol, flexural modulus data are close to each other in ternary nanocomposites. The highest flexural modulus is obtained for the 5 wt-% Cloisite(R) 30B and 3 wt-% polyether polyol sample prepared by the second addition order, as 2978 +/- 27 MPa.

Subject Keywords

Materials Chemistry, General Chemical Engineering, Polymers and Plastics, Ceramics and Composites

URI

https://hdl.handle.net/11511/38682

Journal

PLASTICS RUBBER AND COMPOSITES

DOI

https://doi.org/10.1080/14658011.2020.1763661

Collections

Department of Chemical Engineering, Article

Suggestions

OpenMETU
Core

Effects of Halloysite Nanotubes on the Performance of Plasticized Poly(lactic acid)-Based Composites Erpek, Canan Esma Yeniova; ÖZKOÇ, GÜRALP; Yılmazer, Ülkü (Wiley, 2016-11-01) The objective of this study is processing and characterization of Halloysite nanotube (HNT)/poly(lactic acid) (PLA) nanocomposites. As HNT filler, a domestic source was used (ESAN HNT). The results obtained from this HNT were compared with a well-known reference HNT (Nanoclay HNT). To achieve the desired physical properties and clay dispersion, composites were compounded via direct melt mixing in a laboratory twin-screw compounder. However, the constituents were observed to be incompatible without a compati...
Synthesis, characterization and electrochromic properties of copolymer of terephthalic acid bis-(thiophen-3-yl-methyl) thioester with thiophene Turkarslan, O; Erden, A; Sahin, E; Toppare, Levent Kamil (Informa UK Limited, 2006-01-01) Terephthalic acid bis-(thiophen-3-yl-methyl thioester) (TTMT) was synthesized via the reaction of thiophen-3-yl methanethiol with terephthaloyl dichloride. Nuclear magnetic resonance ( H-1-NMR) spectroscopy and Fourier transform infrared (FTIR) spectroscopy were utilized for the characterization of the monomer. Electrochemical copolymerization of TTMT with thiophene in acetonitrile/boron trifluoride diethyl etherate (AN/BFEE) (8:2, v/v) solvent mixture was realized by using tetrabutylammonium tetrafluorobor...
Influences of three different ethylene copolymers on the toughness and other properties of polylactide MEYVA, YELDA; Kaynak, Cevdet (Informa UK Limited, 2016-01-01) The aim of this study was to investigate influences of three different ethylene copolymers on the toughness and other properties of very brittle biopolymer PLA (polylactide). For this aim, PLA was melt blended by twin-screw extruder with various amounts of ethylene vinyl acetate (EVA), ethylene-methyl-acrylate (EMA) and ethylene-n-butyl acrylate-glycidyl-methacrylate (EBA-GMA). SEM and DSC analyses indicated that these ethylene copolymers were thermodynamically immiscible with phase separation in the form o...
Effect of ZnO type and concentration on the mophology, thermal, and mechanical properties of poly(ether ester)/ZnO composites ÇELEBİ, HANDE; Bayram, Göknur; DOĞAN, AYDIN (Wiley, 2013-09-15) Poly(ether ester) (PEE) copolymers were synthesized in a two-stage process involving transesterification and polycondensation. The synthesized copolymer and the zinc oxide (ZnO) were used in composite preparation by melt compounding. The influence of ZnO type and concentration on the morphology, thermal and mechanical properties of the composites were studied. DSC and XRD analyses indicated that crystallinity of composites was slightly reduced with ZnO content. Homogeneous dispersion of fillers in the polym...
EFFECT OF ION ASSOCIATION ON THE PROPERTIES OF IONOMERS OBTAINED FROM METHYL-METHACRYLATE METHACRYLIC-ACID COPOLYMER KOCAK, HI; ARAS, L (Elsevier BV, 1990-07-01) The solution behaviour of Na, Ba, Zn and Al ionomers of methyl methacrylate-methacrylic acid copolymer (P(MMA-MAA)) with different ion contents has been studied by viscosity and dipole moment measurements. Two solvents with different character are chosen for viscosity measurements: dioxane (ε = 2.22) and acetone (ε = 20.7). The expected polyelectrolyte behaviour of the ionomers in acetone is reflected by the viscometric measurements. Mean squared dipole moment 〈μ2〉 values are calculated over a temperature r...

Citation Formats

I. Isik-Gulsac, Ü. YILMAZER, and G. Bayram, “Effects of mixing sequence on epoxy/polyether polyol/organoclay ternary nanocomposites,” PLASTICS RUBBER AND COMPOSITES, pp. 368–377, 2020, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/38682.