Reprocessing stability.(The Properties of Recycled PVC Bottle Compounds, part 2): An article from: Polymer Engineering and Science
Book Details
Author(s)J.C. Arnold, B. Maund
PublisherSociety of Plastics Engineers, Inc.
ISBN / ASINB00098XL2C
ISBN-13978B00098XL21
MarketplaceFrance 🇫🇷
Description
This digital document is an article from Polymer Engineering and Science, published by Society of Plastics Engineers, Inc. on July 1, 1999. The length of the article is 2769 words. The page length shown above is based on a typical 300-word page. The article is delivered in HTML format and is available in your Amazon.com Digital Locker immediately after purchase. You can view it with any web browser.
From the author: Following a study of the mechanical properties of recycled PVC recovered from post-consumer bottles, this study focuses on the effects of recycled material on processing. In particular, the effects of multiple recycling were studied to investigate any problems that may arise due to the repeated incorporation of recycled material into the processing stream. Batches of recycled flake and powder as well as pure but processed bottle flake material were subjected to simulated multiple recycling using a Torque Rheometer. Ten minutes at 170 [degrees] C followed by granulation represented one recycle. Molecular weight and Infrared analyses were performed to assess the degree of degradation occurring during reprocessing. The results indicated a rapid degradation of the two recycled grades when compared with the purer botfie flake PVC. Further multiple recycling was then performed on bottle flake mixed with 0.2% polyethylene, which showed that the PE impurities accelerate the degradation process. Finally, the effects of restabilizing by adding new bottle flake material at each step were investigated. It was shown that surprisingly small levels of new material (30%) prevented degradation, even after 15 recycle steps.
Citation Details
Title: Reprocessing stability.(The Properties of Recycled PVC Bottle Compounds, part 2)
Author: J.C. Arnold
Publication:Polymer Engineering and Science (Refereed)
Date: July 1, 1999
Publisher: Society of Plastics Engineers, Inc.
Volume: 39 Issue: 7 Page: 1242(9)
Distributed by Thomson Gale
From the author: Following a study of the mechanical properties of recycled PVC recovered from post-consumer bottles, this study focuses on the effects of recycled material on processing. In particular, the effects of multiple recycling were studied to investigate any problems that may arise due to the repeated incorporation of recycled material into the processing stream. Batches of recycled flake and powder as well as pure but processed bottle flake material were subjected to simulated multiple recycling using a Torque Rheometer. Ten minutes at 170 [degrees] C followed by granulation represented one recycle. Molecular weight and Infrared analyses were performed to assess the degree of degradation occurring during reprocessing. The results indicated a rapid degradation of the two recycled grades when compared with the purer botfie flake PVC. Further multiple recycling was then performed on bottle flake mixed with 0.2% polyethylene, which showed that the PE impurities accelerate the degradation process. Finally, the effects of restabilizing by adding new bottle flake material at each step were investigated. It was shown that surprisingly small levels of new material (30%) prevented degradation, even after 15 recycle steps.
Citation Details
Title: Reprocessing stability.(The Properties of Recycled PVC Bottle Compounds, part 2)
Author: J.C. Arnold
Publication:Polymer Engineering and Science (Refereed)
Date: July 1, 1999
Publisher: Society of Plastics Engineers, Inc.
Volume: 39 Issue: 7 Page: 1242(9)
Distributed by Thomson Gale
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