Effects of Halloysite Nanotube on the Mechanical Properties and Nonisothermal Crystallization Kinetics of Poly(Butylene Terephthalate) (PBT)

Oburoğlu, Nur; Ercan, Nevra; Durmuş, Ali; Kaşgöz, Ahmet

doi:10.1080/00222348.2011.610231

Cited by 22 publications

(12 citation statements)

References 32 publications

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“…It is clearly seen that Ozawa model cannot fit the nucleated and non‐nucleated MN filled composites. Similarly, it has been reported that the Ozawa equation could not be used for modeling of the nonisothermal crystallization kinetics of some polymer/clay nanocomposite systems 33–35. The Ozawa kinetic parameters for the crystallization process of the PA6 and composite samples including GF are listed in Table IV.…”

Section: Resultsmentioning

confidence: 99%

Effect of nucleating agent on the nonisothermal crystallization kinetics of glass fiber‐ and mineral‐filled polyamide‐6 composites

Şanlı

Durmuş

Ercan

2012

J of Applied Polymer Sci

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In this study, nonisothermal crystallization kinetics of glass fiber (GF) and clay-type mineral (MN)-reinforced polyamide-6 (PA6) composites prepared in a twin screw extruder were investigated by differential scanning calorimetry method in the presence and absence of an organic nucleating agent (NA). Kinetic parameters for the nonisothermal melt-crystallization process of samples were determined with several models namely Ozawa, Avrami, Jeziorny, and Liu-Mo. Crystallization rate parameters of the samples and nucleation activity of the fillers and additives were also calculated by the models suggested by Zhang and Dobreva and Gutzow, respectively. Crystallization activation energies of the samples were determined by the Kissinger model. It was found that the MN filler accelerates dramatically the crystallization rate of PA6 even without a NA. Small amount of NA also has a significant acceleration effect on the crystallization rate of PA6 composites. The rate acceleration effect of NA was found to be more pronounced in the composite sample reinforced with GF. Based on the kinetic study using of GF as major filler and small amount of clay-like MN in the PA6 composites could improve the mechanical properties and crystallization rate of injection-molded parts. V C 2012 Wiley Periodicals, Inc. J Appl Polym Sci 125: E268-E281, 2012

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Section: Resultsmentioning

confidence: 99%

Effect of nucleating agent on the nonisothermal crystallization kinetics of glass fiber‐ and mineral‐filled polyamide‐6 composites

Şanlı

Durmuş

Ercan

2012

J of Applied Polymer Sci

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“…The PBT/silica nanocomposites exhibited higher electromagnetic reflection compared to pure PBT. Oburoğlu et al (2012a) prepared PBT/HNTs using melt processing in a twin-screw extruder. Accordingly, silica nanoparticles are a potential candidate for use in electromagnetic shielding of PBT.…”

Section: Advantages Limitationmentioning

confidence: 99%

“…On the other hand, it was found that OMMT reduced the melt-crystallization rate of PBT. Oburoğlu et al (2012a) reported on the effects of HNT amount on the melt-crystallization kinetics of PBT, and it was found that the HNTs increased the PBT crystallization rate. is important for the crystallization behavior of polymers (Oburoğlu et al, 2012b).…”

Section: Content Of Nanofillermentioning

confidence: 99%

Process–structure–property relationships in poly(butylene terephthalate) nanocomposites

Chow

2015

Manufacturing of Nanocomposites With Engineering Plastics

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“…Mineral filled versions of PBT commonly employ clay , montmorillonite , carbon nanotubes , SiO 2 , talc , wollastonite, and milled glass as fillers. The nonisothermal studies on PBT composites are mainly restricted to nanocomposites . Zhang et al investigated the nonisothermal crystallization of PBT nucleated with elastomer‐modified nano‐SiO 2 , a commercial nucleating agent (P250) and talc and concluded that these fillers lowered the crystallization time by changing the nucleation mechanism and crystal growth in PBT.…”

Section: Introductionmentioning

confidence: 99%

Nonisothermal crystallization kinetics of poly(butylene terephthalate)/epoxidized ethylene propylene diene rubber/glass fiber composites

Liu

2018

Polymer Engineering & Sci

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Nonisothermal crystallization kinetics of poly(butylene terephthalate) (PBT)/glass fiber (GF) and PBT/epoxidized ethylene propylene diene rubber (eEPDM)/GF composites were investigated by differential scanning calorimetry (DSC) at a cooling rates of 2.5, 5, 10, and 20 °C/min, respectively. Morphologies of samples were observed with scanning electron microscopy and polarized optical microscopy. The specimens were prepared by melt blending. Analyses of the melt crystallization data by various macrokinetic models such as Jeziorny‐modified Avrami, Liu–Mo models, and Lauritzen–Hoffman equation revealed that GF accelerated the crystallization rate of PBT; furthermore, the eEPDM had two functions: on the one hand, eEPDM promoted PBT to form nuclei; on the other hand, eEPDM hindered the diffusion of polymer chains, but the nucleation effect exceeded the diffusion effect, thus, the eEPDM could increase the crystallization rate of PBT in PBT/eEPDM/GF. These results were further supported by the effective activation energy calculated by isoconversional method of Friedman. POLYM. ENG. SCI., 59:330–343, 2019. © 2018 Society of Plastics Engineers

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Effects of Halloysite Nanotube on the Mechanical Properties and Nonisothermal Crystallization Kinetics of Poly(Butylene Terephthalate) (PBT)

Cited by 22 publications

References 32 publications

Effect of nucleating agent on the nonisothermal crystallization kinetics of glass fiber‐ and mineral‐filled polyamide‐6 composites

Effect of nucleating agent on the nonisothermal crystallization kinetics of glass fiber‐ and mineral‐filled polyamide‐6 composites

Process–structure–property relationships in poly(butylene terephthalate) nanocomposites

Nonisothermal crystallization kinetics of poly(butylene terephthalate)/epoxidized ethylene propylene diene rubber/glass fiber composites

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