ISSN:
0021-8995
Keywords:
Chemistry
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
,
Physics
Notes:
Blends of vinyl chloride/propylene copolymer (VCM-P) with aromatic polycarbonate (PC) and with ABS terpolymer were studied. Particular emphasis was on characteristics of deflection temperature under load (DTUL), simply referred to as heat deflection temperature (HDT). In a binary system which contained PC and VCM-P, the HDT-composition plot exhibited an S-shaped curve, suggesting incompatibility. In contrast, a straight-line correlation, indicating compatibility, was found for VCM-P/ABS blends. These observations are consistent with dynamic measurements by viscoelastometer (Vibron Model DDV-II). Compatibility of the VCM-P/PC system was improved through incorporation of ABS copolymer, as indicated by the broadening of tan δ peak. Electron photomicrographs revealed that, in a 50% VCM-P binary blend, polycarbonate existed in a string-like morphology which differed from the compatible ABS system where the ABS copolymer was dispersed in a form of discrete particles.
Additional Material:
13 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/app.1979.070230614
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