Effects of hybrid nucleating agents on glass fiber‐reinforced polyethylene terephthalate/polybutylene terephthalate alloy crystallization

Fu, Jie-Hui; Chen, Xiao; Xu, Qing; Wang, Ruiyuan; Wang, Xijun

doi:10.1002/pc.23280

Cited by 12 publications

(13 citation statements)

References 22 publications

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“…An improvement in the stability during processing and, hence, in many other properties, may be achieved by blending PET with other polymers or copolymers , forming polymer blends. The addition of chemically active copolymers to PET is an effective way of modifying its properties and thus, obtaining desirable results.…”

Section: Introductionmentioning

confidence: 99%

Effect of copolymers containing glycidyl methacrylate functional groups on the rheological, mechanical, and morphological properties of poly(ethylene terephthalate)

Nascimento

Agrawal

Mélo

2018

Polymer Engineering & Sci

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The aim of this work was to investigate the effect of ethylene‐glycidyl methacrylate (EGMA) and ethylene‐methyl acrylate‐glycidyl methacrylate (EMAGMA) copolymers on the rheological, mechanical, and morphological properties of Poly(ethylene terephthalate) (PET). The results of torque rheometry showed an increase in the torque of PET with the addition of EGMA and EMAGMA copolymers due to the reactions between the GMA groups present in the copolymers and the carboxyl and hydroxyl groups present in PET. The torque of PET/copolymer blends increased with the increase in the copolymer content and was more pronounced for the blends containing EGMA copolymer. X‐ray diffraction and differential scanning calorimetry analyzes showed that neat PET and the PET in PET/copolymer blends are amorphous. The addition of EGMA and EMAGMA copolymers delayed the crystallization of PET. Rheological measurements showed an increase in the viscosity at low frequencies with the addition of EGMA and EMAGMA copolymers to PET. This increase was more pronounced for PET/copolymer blends containing higher amount of copolymers and for the blends containing EGMA, corroborating the results obtained by torque rheometry. The impact strength of PET/EMAGMA blends was higher than that of PET/EGMA blends. Morphology analysis by SEM showed that PET/EMAGMA blends presented higher average dispersed phase domains size than PET/EGMA blends. POLYM. ENG. SCI., 59:683–693, 2019. © 2018 Society of Plastics Engineers

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Section: Introductionmentioning

confidence: 99%

Effect of copolymers containing glycidyl methacrylate functional groups on the rheological, mechanical, and morphological properties of poly(ethylene terephthalate)

Nascimento

Agrawal

Mélo

2018

Polymer Engineering & Sci

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“…10 The commonly used nucleating methods for enhancing the crystallization properties include inorganic nucleating agent, [11][12][13][14][15] organic nucleating agent 16,17 and polymer nucleating agent. [18][19][20] Inorganic nucleating agents (silica, mica, zinc oxide, carbon nanotubes, etc.) are widely used in PET nucleation modification due to excellent nucleation ability.…”

Section: Introductionmentioning

confidence: 99%

Research on synthesis and thermal properties of poly(ethylene terephthalate) sulfonate group containing ionomer

Yin

Jiang

Lian

2020

J of Applied Polymer Sci

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In order to solve the poor nucleation ability and slow crystallization rate of polyethylene terephthalate (PET), we propose a new strategy to prepare PET with self-nucleation ability based on the mechanism of mutual attraction of ions. In this study, a hydroxyl-terminated sulfonate monomer, sulfonated 1,4-butanediol (SBDO) without rigid structure was synthesized as nucleating agent functionalized PET third monomer, and then PET ionomers (PETi) were prepared through melt polycondensation with different contents of SBDO. The half-crystallization time of PETi was sharply decreased in contrast with pure PET and the crystallization temperature was significantly increased from 182.6 C to 210.8 C for PETi1. Due to the high nucleation efficiency of SBDO, the crystallization temperature of PET was significantly increased, avoiding the excessive addition of traditional nucleating agents to deteriorate the mechanical properties of PET. The increased nucleation efficiency was contributed to the aggregation of SBDO induced by the ionic interactions.

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“…The peaks of crystallization temperature ( T p ) moved to low temperature with the cooling rate increasing, crystallization rate of PBT/PET blends increased with the lower GF contents while it was baffled by higher GF contents. Fu et al studied the crystallization behaviors of GF‐reinforced PET/PBT alloy with compound nucleating agents of Surlyn 8920 and AX 8900. They demonstrated the hybrid nucleating agents of Surlyn 8920 and AX 8900 not only can accelerate crystal growth but also can significantly reduce the energy barrier, and it had a good effect on the nucleation in the alloy.…”

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 hybrid nucleating agents on glass fiber‐reinforced polyethylene terephthalate/polybutylene terephthalate alloy crystallization

Cited by 12 publications

References 22 publications

Effect of copolymers containing glycidyl methacrylate functional groups on the rheological, mechanical, and morphological properties of poly(ethylene terephthalate)

Effect of copolymers containing glycidyl methacrylate functional groups on the rheological, mechanical, and morphological properties of poly(ethylene terephthalate)

Research on synthesis and thermal properties of poly(ethylene terephthalate) sulfonate group containing ionomer

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

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