Improving the dyeability of poly (lactic acid) fiber using octa (aminophenyl) POSS nanoparticle during melt spinning

Baykus, Onur
DOĞAN, Şengül Dilem
Tayfun, Umit
DOĞAN, Mehmet
Disperse dye structure affects the dyeability of poly (lactic acid) (PLA) fiber due to the low dyeing temperature and the short dyeing time. Thus, the dye uptake value of PLA fiber is low for some disperse dyes and needs to be improved. In this study, the dyeability of PLA fiber is improved with the addition of synthesized octa (aminophenyl) polyhedral oligomeric silsesquioxane (OAP-POSS) nanoparticle during the melt spinning process. The effects of dyeing conditions including dyeing temperature and time, OAP-POSS concentration, disperse dye types, and concentrations are investigated on the dyeability properties of PLA fiber samples. The tensile, thermal, and morphological properties of the fiber samples are also characterized by tensile testing, differential scanning calorimetry, scanning electron microscopy, and transmission electron microscopy. It is concluded that the percent crystallinity and the tensile strength of pure PLA fiber decrease as the added amount of OAP-POSS increases. According to the dyeing results, OAP-POSS, which behaves as a good sorbent for the disperse dyes used in this study, greatly improves the dyeability of PLA fiber, especially for disperse dyes with low dye uptake values.


Improving the dyeability of poly(lactic acid) fiber using organoclay during melt spinning
Tayfun, Umit; DOĞAN, Mehmet (2016-06-01)
The dyeability of poly(lactic acid) (PLA) fiber was tried to be improved with the addition of organoclay during melt spinning process. The tensile, thermal and morphological properties of the fiber samples were characterized by tensile testing, differential scanning calorimeter, X-ray diffraction and transmission electron microscopy, respectively. The effects of disperse dye type, dye bath and organoclay concentrations on the dyeability and wash fastness properties of the fiber samples were investigated. It...
Effects of surface pretreatments and coating period on hydroxyapatite coating of Ti6Al4V alloy
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In this study, Ti6Al4V plates were gone through three steps of pretreatment process (sandblasting + acid etching + preheating) followed by biomimetic coating of pure hydroxyapatites (HAp) on pretreated substrate. Pretreated substrates were examined by SEM, EDS, AFM, FTIR, and XRD; meanwhile, prepared coatings were examined by SEM, EDS, FTIR, XRD, XPS, scratch test, and in vitro cell studies (SaOS-2 cell line). Prepared coatings were also investigated in terms of antibacterial property by determining the sur...
Effect of color and surfactants on nanofiltration for the recovery of carpet printing wastewaters
Capar, Goksen; Yetiş, Ülkü; Olceroglu, A. Hande; Yılmaz, Levent (Informa UK Limited, 2006-01-01)
Carpet printing wastewater (CPW) was spiked with metal-complex dyes at concentrations of 10 and 30 mg/L to investigate the effect of feed color on separation performance of nanofiltration (NF). The rejection was excellent; 98-100% for color and COD under all spiking conditions. Although the flux decline increased with increasing dye concentration, the concentration polarization was the main cause of the flux decline. The effect of surfactants on NF separation performance was also investigated by preparing s...
Effect of Alkaline Treatment and Pre-impregnation on Mechanical and Water Absorbtion Properties of Pine Wood Flour Containing Poly (Lactic Acid) Based Green-Composites
Altun, Yasemin; DOĞAN, Mehmet; Bayramlı, Erdal (2013-09-01)
The effect of surface treatments and wood flour (WF) ratio on the mechanical, morphological and water absorption properties of poly (lactic acid) (PLA) based green-composites were studied. WF/PLA interfacial adhesion was promoted by means of alkaline treatment and pre-impregnation with dilute solution of matrix material. The composite materials were manufactured with twin screw extruder and injection molded samples were used for characterization. According to tensile test results, the inclusion of WF withou...
Enhancing electrochromic and kinetic properties of poly(2,3-bis(4-tert-butylphenyl)-5,8-di(1H-pyrrol-2-yl) quinoxaline) by copolymerization
Celebi, Selin; Baran, Derya; Balan, Abidin; Toppare, Levent Kamil (Elsevier BV, 2010-02-28)
Electrochemical copolymerization was utilized to combine several properties into a single material in order to obtain a highly stable polymer with a low band gap to meet the requirements for color variation. In that sense, two new donor acceptor type electrochromic copolymers of 2,3-bis(4-tert-butylphenyl)5,8-di(1H-pyrrol-2-yl) quinoxaline (TBPPQ) with bis(3,4-ethylenedioxythiophene) (BiEDOT) and with 4,7-bis(2,3-dihydrothieno[3,4-b][1,4]dioxin-5-yl)-2-dodecyl-2H-benzo [ 1,231 triazole (BEBT) were synthesiz...
Citation Formats
O. Baykus, Ş. D. DOĞAN, U. Tayfun, A. DAVULCU, and M. DOĞAN, “Improving the dyeability of poly (lactic acid) fiber using octa (aminophenyl) POSS nanoparticle during melt spinning,” JOURNAL OF THE TEXTILE INSTITUTE, pp. 569–578, 2017, Accessed: 00, 2020. [Online]. Available: