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A study on blends of different molecular weights of polypropylene

✍ Scribed by B. L. Deopura; S. Kadam

Publisher: John Wiley and Sons
Year: 1986
Tongue: English
Weight: 791 KB
Volume: 31
Category: Article
ISSN: 0021-8995
DOI: 10.1002/app.1986.070310718

No coin nor oath required. For personal study only.

✦ Synopsis

Blends of small percentage of plastic grade polypropylene with fiber grade polypropylene are studied in unoriented and oriented states. A 3% blend sample has a higher spherulitic growth rate, and improved mechanical behavior in drawn fiber state as compared to the parent sample. These changes are related to the presence of bimodal and trimodal crystal texture of polypropylene in the blend, respectively. At a higher blend percent, specifically at 10 and 15%, the mechanical properties of the drawn fiber are inferior and these are related to partial phase segregation of the components.

The present investigation deals with the blends of fiber grade PP and a small percentage of plastic grade PP with a view to study the crystallization

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