Structure Development in Reactive Polycarbonate‐Poly(Ethylene Terephthalate) Melt Blends

Wilkinson, Andrew; Nita, E. M I; Clemens, M; Jöbstl, Elisabeth; Fairclough, J. Patrick A.

doi:10.1080/00222340500364585

Cited by 10 publications

(2 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…At this the blend higher thermal and mechanical properties of amorphous PC with high chemical resistance of semicrystalline PET makes a very versatile and economic material for engineering applications. [24][25][26][27][28][29][30][31] A few studies have been done on the mechanical and thermal properties of PC/ PET nanocomposites. Mubarak et al 32 prepared PC/PET nanocomposites in the presence of lanthanum acetyl acetonate hydrate as a catalyst.…”

Section: Introductionmentioning

confidence: 99%

Preparation and properties of double percolated co-continuous PC/PET/MWCNT/GNP engineering polymer blend nanocomposites

Zallaghi,

Azizi

2023

Journal of Composite Materials

View full text Add to dashboard Cite

This study reports on the preparation and characterization of nanocomposites based on polycarbonate (PC)/poly ethylene terephthalate (PET) blend containing low amounts of hybrid of multiwalled carbon nanotube (MWCNTs) and graphene nanoplates (GNPs) by melt mixing. To use double percolation mechanism, at first a co-continuous polymer blend was prepared and the influence of nanofiller content on morphology, electrical conductivity, rheological and mechanical properties of co-continuous PC/PET blend was investigated. Blend containing 60 wt. % PET showed co-continuous morphology as observed by scanning electron microscopy and it was found that co-continuity remained unchanged by the addition of nanofillers. The direct current (DC) electrical conductivity results showed a low electrical percolation threshold around 0.5 phr. The results obtained from differential scanning calorimetry (DSC) and thermal gravimetric analysis (TGA) showed an increase in thermal stability and crystallinity of nanocomposites. By increasing nanofiller amount, the storage modulus, loss modulus, and complex viscosity of samples increased as an indication of the strong network formation between nanofillers and polymer chains. The rheological percolation threshold was also found in the range of 2.5–3.5 phr of nanofillers. The tensile measurements results showed that the addition PC to PET increases the tensile strength of PET.

show abstract

Section: Introductionmentioning

confidence: 99%

Preparation and properties of double percolated co-continuous PC/PET/MWCNT/GNP engineering polymer blend nanocomposites

Zallaghi,

Azizi

2023

Journal of Composite Materials

View full text Add to dashboard Cite

show abstract

“…As a reactive compatibilization method, ester–ester and ester–amide exchange reactions have been studied for many years. The reactions for various polymer blends, such as PBS/Polyamide, EVA/PLA, PET/PC, PC/PMMA, etc., were studied, and it was found that some random or graft copolymers were generated by the exchange reactions. The reaction products, which acted as compatibilizer, could effectively improve the compatibility of the blends.…”

Section: Introductionmentioning

confidence: 99%

Study on ester–amide exchange reactions between Nylon 1010 and Ethylene‐vinyl acetate rubber

Zhang

2013

J of Applied Polymer Sci

View full text Add to dashboard Cite

Reactive processing is a useful method to improve the compatibility of immiscible polymer blends. Nylon 1010/Ethylenevinyl acetate rubber (EVM) blends were prepared via melt blending at 240 C and tetrabutyl titanate (Ti(OBu) 4 ) was used as a catalyst. Ester-amide exchange reactions were proven to take place between Nylon and EVM during the shear processing. Melt flow index, Fourier transform infrared spectroscopy, and proton nuclear magnetic resonance spectra were used to study the reactions. It was demonstrated that tuning the shear rate could control the properties and reaction extent of Nylon 1010/EVM/Ti(OBu) 4 blends. The results revealed that the reactions were promoted by high shear rate. Tensile strength of the blends increased from 4.5 to 11.4 MPa when the shear rate increased from 20 to 80 rpm. Meanwhile, scanning electron microscopy was adopted to study the morphology of the reactive blends. It was found that the morphology of the blends was changed from sea-island structures to co-continuous structures while increasing the shear rate from 20 to 100 rpm. Dynamic mechanical analysis confirmed that high-shear processing was found to promote the compatibility of the blends.

show abstract

Effectiveness of the Transesterification Catalyst on the Thermal, Dynamic‐Mechanical and Rheological Properties of PET/PC Reactive Melting Blends

Mendes

Pereira

Ramos

2011

Macromolecular Symposia

View full text Add to dashboard Cite

Reactive poly(ethylene terephthalate) / polycarbonate (PET/PC) melting blends were prepared with different cobalt catalyst and polymer compositions. The presence of catalyst increased the miscibility of the 20/80 (wt%) blend, according to differential scanning calorimetry (DSC) and dynamic‐mechanical analyses (DMA). The catalyst also promoted the amorphisation of the PET chains. Besides, the catalyst caused drastic lowering of both moduli (storage and loss) and melt flow rate (MFR) of some blends. The best mechanical and processing properties were achieved for blends without catalyst, indicating that transesterification reactions prejudice mechanical properties.

show abstract

Structure Development in Reactive Polycarbonate‐Poly(Ethylene Terephthalate) Melt Blends

Cited by 10 publications

References 27 publications

Preparation and properties of double percolated co-continuous PC/PET/MWCNT/GNP engineering polymer blend nanocomposites

Preparation and properties of double percolated co-continuous PC/PET/MWCNT/GNP engineering polymer blend nanocomposites

Study on ester–amide exchange reactions between Nylon 1010 and Ethylene‐vinyl acetate rubber

Effectiveness of the Transesterification Catalyst on the Thermal, Dynamic‐Mechanical and Rheological Properties of PET/PC Reactive Melting Blends

Contact Info

Product

Resources

About