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Processing and mechanical properties of recycled PVC and of homopolymer blends with virgin PVC

✍ Scribed by Ma Wenguang; F. P. La Mantia

Publisher
John Wiley and Sons
Year
1996
Tongue
English
Weight
959 KB
Volume
59
Category
Article
ISSN
0021-8995

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✦ Synopsis

Mechanical and processing properties of recycled polyvinylchloride (PVC, from bottles and pipes) were compared with those of virgin pipe grade PVC. Blends of recycled and pipe grade PVC were also prepared and characterized. It was found that the particle size and the restabilization of the recycled PVC are the two main points to be considered for obtaining virgin/recycled PVC blends with uniform and good mechanical properties. In general, recycled PVC not only does not significantly reduce the modulus and tensile strength, but also improves the impact strength and processing behavior of pipe grade virgin PVC. Only the thermomechanical resistance is slightly lowered. The latter points hold, of course, only when the recycled PVC contains both reinforcing and modifier agents.

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