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PET/PC blends

Similar PET-PC and PBT-PET-PC blends have been developed in unfilled, glass-filled and mineral-filled versions. One can begin to see how all of the building blocks of PBT formulation can be used interchangeably to tailor product performance. [Pg.310]

PET can be blended with PBT or polycarbonate (PC) to make blends or alloys. Polycarbonate is a high Tg (150 °C) ductile, high-impact-strength polymer but has rather poor solvent resistance because of its amorphous nature. PET/PC blends have therefore proved advantageous because they combine the solvent-resistance... [Pg.528]

Transesterification of PET/PC blends can lead to copious gas evolution (carbon dioxide). To suppress transesterification of binary polyesters, inhibitors such as inorganic phosphates can be added. [Pg.530]

Table 14.14 Effect of a titanate alloying agent (Kenrich Lica-12) on a 80/20 PET/PC blend (data obtained from Kenrich Petrochemicals Ltd)... Table 14.14 Effect of a titanate alloying agent (Kenrich Lica-12) on a 80/20 PET/PC blend (data obtained from Kenrich Petrochemicals Ltd)...
B. Swoboda, E. Leroy, F. Laoutid, and J.M. Lopez-Cuesta, Flame retardant PET/PC blends compatibilized by organomodified montmorillonites, Proceedings of the ACS Conference, New Orleans, LA, 2008. [Pg.326]

ESSENTIAL WORK OF FRACTURE OF INJECTION MOULDED SAMPLES OF PET AND PET/PC BLENDS... [Pg.77]

PET, PET/PC Blends, Essential Work of Fracture (EWF), Injection Mould, Orientation... [Pg.77]

Essential Work of Fracture of Injection Moulded Samples of PET and PET/PC Blends 79... [Pg.79]

Fig. 8. Essential components (Wc and We") from the partitioning as a function of global essential work of fracture (we) for PET/PC blends. Solid and dashed lines represent the trends followed. Fig. 8. Essential components (Wc and We") from the partitioning as a function of global essential work of fracture (we) for PET/PC blends. Solid and dashed lines represent the trends followed.
The conclusion that the starting PET/PC blends are converted via coreactive blending into a one-component material with only one phase (amorphous) has important consequences when the blend is characterized with respect to its mechanical properties. Unfortunately, this peculiarity of such blends is frequently... [Pg.138]

Vybex. [Fetra/Engineering Thermc las-tics] PBT or PET/PC blends, some glass leinfoiced therm(q>lastics. [Pg.403]

Miscibility of the blend components has an obvious effect on morphology (for more detailed discussions see Chapter 8). During processing, the hydrostatic and shear stresses can change the lower critical solubility temperature (LCST) by at least 60°C. This may result in formation (inside the processing unit) of a miscible blend. The blend emerging from the extruder may phase separates by the spinodal decomposition mechanism into a co-continuous structure, whose degree of dispersion can be controlled example PET/PC blends. [Pg.17]

The crystallization in PEO/PMMA blends is influenced by the nature of the casting solvent. Phase segregation in the blend and PEO crystal growth inhibition by PMMA in certain directions have been observed in these miscible blends [Radhakrishnan and Venkatachalapati, 1996]. In PET/PC blend (Makroblend 4T 1018), the chemical and solvent influences are improved, compared to constituent polymers. The chemical resistance of this blend is shown in Table 12.17 [Mark et al., 1988]. [Pg.894]

For these applications cycle times have been reduced by between 18 and 36% with the use PET/PC blends. The blends having a tensile strength of 56 MPa, a tensile modulus of 2.3 GPa, and a heat distortion temperature of 113°C at 1.8 MPa offer good colorability, gloss and... [Pg.974]

Polyurethane/ABS resins combine elastomeric toughness with the scratch- and scuff-resistance, and processability of ABS. Flexural moduli ranging from 344 to 1000 MPa and the resin s low temperature impact strength qualify this blend for applications in hard-sided luggage and furniture armrests. Furniture components represent another possible application for PET/PC blends, for the reasons cited earlier. [Pg.975]

Commercial impact modified (elastomer blended) polycarbonates are used for the production of protective headgear, sporting goods, bobbins for textile industry and automotive components requiring high toughness. Impact modified PC has to compete with the more solvent resistant impact modified PBT/PC, PET/PC blends and polyamides in some of the applications. [Pg.1084]

PBT/polycarbonate blend, first introduced in 1980 by General Electric (Xenoy ) has enjoyed a fast growth in automotive applications, particularly for bumpers. The blend was developed to meet the low temperature impact strength, dimensional stability and paintability requirements of rigid bumper fascias [Bertolucci and Delany, 1983], which accounted for the bulk of the current market volume for the PBT/PC blend (estimated 25 kton/y in the USA). The development of commercial PET/PC blends followed shortly after the initial success of PBT/PC blends. Currently there are several commercial blends of both PBT/PC and PET/PC blends available. [Pg.1087]

All the commercial PBT/PC and PET/PC blends also contain typically 10-20 wt% of an additional elastomeric impact modifier. The exact nature and the content of the impact modifier is kept proprietary and often forms the basis for a particular blend patent. Typically core-shell rubbers such as polymethylmethacrylate grafted butadiene-styrene rubber (MBS) or an all acrylic core-shell rubber such as poly (MMA-g-n-BuA) are used [Nakamura, 1975 Chung, 1985]. ABS (with high polybutadiene content S 50%) or ASA... [Pg.1088]

Under the normal extrusion blending conditions PET/PC blend forms a 2-phase blend morphology. The melt residence times are short enough such that the interchange reaction does not occur, and the PC can be quantitatively extracted out with methylene chloride. From the observed glass transitions of the PET-rich phase and PC-rich phase, measured by DSC or DMA, the blend can be classified as partially miscible with an estimated interaction parameter of slightly positive... [Pg.1089]

Commercial PBT/PC and PET/PC blends contain about 15-20 % of such core-shell mbber impact modifiers for maximum toughness, i.e., notched Izod impact strengths of typically > 700 J/m which is maintained even at low temperature (Tables 15.26 and 15.27). The ratio of PBT/PC or PET/PC is usually kept between 50/50 to 40/60 to optimize the ductility in the blend, while still maintaining a continuous or co-continuous phase of the polyester. A continuous phase of PBT or PET with PC as dispersed phase, would be preferred for solvent resistance. [Pg.1090]

Injection molded PET/PC blends, on the other hand, generally lead to an essentially amorphous PET phase. Short term annealing at elevated temperatures (120-150°C) causes this PET phase to crystalfize and leads to some loss in ductility especially when the polycarbonate content in the blend is < 30% [Akkapeddi et al., unpubfished results]. [Pg.1090]

The excellent low temperature toughness and solvent resistance of PBT/PC and PET/PC blends have found good appfication in automotive exte-... [Pg.1090]

See other pages where PET/PC blends is mentioned: [Pg.277]    [Pg.529]    [Pg.277]    [Pg.312]    [Pg.77]    [Pg.77]    [Pg.78]    [Pg.84]    [Pg.85]    [Pg.86]    [Pg.87]    [Pg.1087]    [Pg.1089]    [Pg.1090]    [Pg.1090]    [Pg.1091]    [Pg.1097]    [Pg.1135]    [Pg.529]   
See also in sourсe #XX -- [ Pg.77 ]



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PET Blends

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