PMID- 37724860
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20240209
IS  - 1864-564X (Electronic)
IS  - 1864-5631 (Linking)
VI  - 17
IP  - 3
DP  - 2024 Feb 8
TI  - Oxidization and Chain-Branching Reaction for Recycling HDPE and Mixed HDPE/PP 
      with In-situ Compatibilization by Ozone-Induced Reactive Extrusion.
PG  - e202301035
LID - 10.1002/cssc.202301035 [doi]
AB  - High-density polyethylene (HDPE) and isotactic polypropylene (iPP) are widely 
      used in industrial and residential applications due to their low cost and 
      chemical stability, thus their recycling process can contribute to a circular 
      economy. However, both polymers are non-polar materials, and the incompatibility 
      with most other materials leads to substantially inferior properties of blends. 
      In this work, we propose a flexible compatibilization strategy to improve the 
      compatibility of HDPE/iPP blends. Ozone is adopted to induce reactive extrusion 
      for rapid oxidation of HDPE and chain-branching reactions for both HDPE and 
      HDPE/iPP blends. During extrusion process, ozone oxidizes HDPE effectively in a 
      short time and introduces oxygen-containing groups such as carbonyl and ester 
      groups, which improves the hydrophilicity. The addition of trimethylolpropane 
      triacrylate (TMPTA) could promote branching reaction and facilitate the formation 
      of HDPE-g-iPP copolymers, which improved the compatibility for HDPE/iPP. As a 
      result, the impact strength of ozone-modified HDPE and HDPE/iPP blends increased 
      by 22 % and 82 %, respectively, and the tensile strength also increased. This 
      strategy would have potential applications in the field of sorting-free and 
      solvent-free recycling of waste polyolefin plastics.
CI  - (c) 2023 Wiley-VCH GmbH.
FAU - Wei, Shi-Yi
AU  - Wei SY
AUID- ORCID: 0009-0005-1577-138X
AD  - National Engineering Research Center of Novel Equipment for Polymer Processing, 
      The Key Laboratory of Polymer Processing Engineering of Ministry of Education, 
      Guangdong Provincial Key Laboratory of Technique and Equipment for Macromolecular 
      Advanced Manufacturing, School of Mechanical & Automotive Engineering, South 
      China University of Technology, Guangzhou, 510640, China.
FAU - Wang, Chun-Yan
AU  - Wang CY
AUID- ORCID: 0000-0003-1492-8152
AD  - National Engineering Research Center of Novel Equipment for Polymer Processing, 
      The Key Laboratory of Polymer Processing Engineering of Ministry of Education, 
      Guangdong Provincial Key Laboratory of Technique and Equipment for Macromolecular 
      Advanced Manufacturing, School of Mechanical & Automotive Engineering, South 
      China University of Technology, Guangzhou, 510640, China.
FAU - Guo, Chao
AU  - Guo C
AD  - National Engineering Research Center of Novel Equipment for Polymer Processing, 
      The Key Laboratory of Polymer Processing Engineering of Ministry of Education, 
      Guangdong Provincial Key Laboratory of Technique and Equipment for Macromolecular 
      Advanced Manufacturing, School of Mechanical & Automotive Engineering, South 
      China University of Technology, Guangzhou, 510640, China.
FAU - Zhu, Ya-Nan
AU  - Zhu YN
AD  - National Engineering Research Center of Novel Equipment for Polymer Processing, 
      The Key Laboratory of Polymer Processing Engineering of Ministry of Education, 
      Guangdong Provincial Key Laboratory of Technique and Equipment for Macromolecular 
      Advanced Manufacturing, School of Mechanical & Automotive Engineering, South 
      China University of Technology, Guangzhou, 510640, China.
FAU - Cao, Xian-Wu
AU  - Cao XW
AD  - National Engineering Research Center of Novel Equipment for Polymer Processing, 
      The Key Laboratory of Polymer Processing Engineering of Ministry of Education, 
      Guangdong Provincial Key Laboratory of Technique and Equipment for Macromolecular 
      Advanced Manufacturing, School of Mechanical & Automotive Engineering, South 
      China University of Technology, Guangzhou, 510640, China.
FAU - Kuang, Qing-Lin
AU  - Kuang QL
AD  - Siiico Technology Co., Ltd, Foshan, 528200, China.
FAU - He, Guang-Jian
AU  - He GJ
AUID- ORCID: 0000-0001-6309-1040
AD  - National Engineering Research Center of Novel Equipment for Polymer Processing, 
      The Key Laboratory of Polymer Processing Engineering of Ministry of Education, 
      Guangdong Provincial Key Laboratory of Technique and Equipment for Macromolecular 
      Advanced Manufacturing, School of Mechanical & Automotive Engineering, South 
      China University of Technology, Guangzhou, 510640, China.
LA  - eng
GR  - 51973068/National Natural Science Foundation of China/
GR  - 2021A1515010487/Natural Science Foundation of Guangdong Province/
GR  - xjkcpy-2021003/Special Fund for Scientific and Technological Innovation of 
      Xinjiang Academy of Agricultural Sciences/
PT  - Journal Article
DEP - 20231113
PL  - Germany
TA  - ChemSusChem
JT  - ChemSusChem
JID - 101319536
SB  - IM
OTO - NOTNLM
OT  - chain-branching
OT  - oxidization
OT  - polyethylene
OT  - reactive extrusion
EDAT- 2023/09/19 17:43
MHDA- 2023/09/19 17:44
CRDT- 2023/09/19 09:03
PHST- 2023/08/14 00:00 [revised]
PHST- 2023/07/18 00:00 [received]
PHST- 2023/09/19 17:44 [medline]
PHST- 2023/09/19 17:43 [pubmed]
PHST- 2023/09/19 09:03 [entrez]
AID - 10.1002/cssc.202301035 [doi]
PST - ppublish
SO  - ChemSusChem. 2024 Feb 8;17(3):e202301035. doi: 10.1002/cssc.202301035. Epub 2023 
      Nov 13.