PMID- 31489944
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20201001
IS  - 2073-4360 (Electronic)
IS  - 2073-4360 (Linking)
VI  - 11
IP  - 9
DP  - 2019 Sep 6
TI  - Recycling of Polypropylene/Polyethylene Blends: Effect of Chain Structure on the 
      Crystallization Behaviors.
LID - 10.3390/polym11091456 [doi]
LID - 1456
AB  - The combination of high-density polyethylene (HDPE), low-density polyethylene 
      (LDPE) and polypropylene (PP) is frequently found in polymer waste streams. 
      Because of their similar density, they cannot be easily separated from each other 
      in the recycling stream. Blending of PP/ polyethylenes (PEs) in different ratios 
      possibly eliminate the sorting process used in the regular recycling process. PP 
      has fascinating properties such as excellent processability and chemical 
      resistance. However, insufficient flexibility limits its use for specific 
      applications. Blending of PP with relative flexible PEs might improve its 
      flexibility. This is a unique approach for recycling or upcycling, which aims to 
      maintain or improve the properties of recycled materials. The effects of the 
      branched-chain structures of PEs on the crystallization behavior and the related 
      mechanical properties of such blends were investigated. The overall kinetics of 
      crystallization of PP was significantly influenced by the presence of PEs with 
      different branched-chain structures. The presence of LDPE was found to decrease 
      the overall crystallization rate while the addition of HDPE accelerated the 
      crystallization process of the blends. No negative effect on the mechanical 
      performance and the related crystallinity was observed within the studied 
      parameter range.
FAU - Aumnate, Chuanchom
AU  - Aumnate C
AUID- ORCID: 0000-0003-4377-333X
AD  - Metallurgy and Material Sciences Research Institute, Chulalongkorn University, 
      Bangkok 10330, Thailand. Chuanchom.a@chula.ac.th.
FAU - Rudolph, Natalie
AU  - Rudolph N
AD  - AREVO, Inc., Milpitas, CA 95035, USA.
FAU - Sarmadi, Majid
AU  - Sarmadi M
AD  - Textile Science, Department of Design Studies and Materials Science Graduate 
      Program, University of Wisconsin-Madison, Madison, WI 53706, USA.
LA  - eng
PT  - Journal Article
DEP - 20190906
PL  - Switzerland
TA  - Polymers (Basel)
JT  - Polymers
JID - 101545357
PMC - PMC6780393
OTO - NOTNLM
OT  - crystal structure
OT  - crystallization
OT  - kinetics
OT  - polymer blends and alloys
OT  - recycling
COIS- The authors declare no conflict of interest.
EDAT- 2019/09/07 06:00
MHDA- 2019/09/07 06:01
PMCR- 2019/09/06
CRDT- 2019/09/07 06:00
PHST- 2019/08/17 00:00 [received]
PHST- 2019/09/04 00:00 [revised]
PHST- 2019/09/05 00:00 [accepted]
PHST- 2019/09/07 06:00 [entrez]
PHST- 2019/09/07 06:00 [pubmed]
PHST- 2019/09/07 06:01 [medline]
PHST- 2019/09/06 00:00 [pmc-release]
AID - polym11091456 [pii]
AID - polymers-11-01456 [pii]
AID - 10.3390/polym11091456 [doi]
PST - epublish
SO  - Polymers (Basel). 2019 Sep 6;11(9):1456. doi: 10.3390/polym11091456.