DOI: 10.1007/s10924-019-01642-5
论文题名: Mechanical–Chemical Recycling of Low-Density Polyethylene Waste with Polypropylene
作者: de Camargo R.V. ; Saron C.
刊名: Journal of Polymers and the Environment
ISSN: 15662543
出版年: 2020
卷: 28, 期: 3 语种: 英语
英文关键词: LDPE
; PP
; Recycling
; Zeolite ZSM-5
; Ziegler–Natta catalyst
Scopus关键词: Catalysts
; Industrial waste treatment
; Low density polyethylenes
; Plastic flow
; Polyethylenes
; Polymer blends
; Polypropylenes
; Recycling
; Reinforced plastics
; Thermomechanical treatment
; Zeolites
; Controlled conditions
; Experimental conditions
; Mechanical recycling
; Polymeric structures
; Recycled materials
; Thermo-mechanical processing
; Thermochemical treatments
; Zeolite ZSM-5
; Plastic recycling
; catalyst
; plastic
; polymer
; recycling
; thermomechanics
; waste management
; zeolite
英文摘要: The global increasing consumption of thermoplastic such as polyethylene and polypropylene has caused the generation of enormous amount of polymeric waste that are a challenge for solid waste management and represents a severe polluting agent, mainly for the marine life. Mechanical recycling is an important alternative to decrease the volume of polymeric waste. However, the mixture of different thermoplastic and other materials on the same object depreciates the properties of the recycled polymer due to the formation of immiscible blends. The aim of this study has been to evaluate the recycling of the post-industrial low-density polyethylene waste (LDPE waste) in presence of polypropylene using thermomechanical processing and thermochemical treatment of the material. For it, blends of LDPE waste and virgin polypropylene (PP) containing until 30 wt% of PP has been prepared with incorporation of zeolite ZSM-5 and Ziegler–Natta catalysts and submitted to the thermal treatment under controlled conditions of temperature and nitrogen flow. The results show the action of zeolite catalyst as modifier of the polymeric structure during step of the thermomechanical processing of the material. The catalysts have caused considerable changes on properties of the LDPE/PP blends, depending of the experimental conditions. The treatment of polymeric waste in presence of catalyst presents potential for recycling of polymeric materials with high contamination by other polymers and can generate recycled materials with improved properties. © 2019, Springer Science+Business Media, LLC, part of Springer Nature. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/159141
Appears in Collections: 气候变化与战略
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作者单位: Department of Materials Engineering, Engineering School of Lorena, University of São Paulo - LOM-EEL/USP, Polo Urbo Industrial, Gleba AI-6, s/n, Lorena, SP CEP: 12602-810, Brazil
Recommended Citation:
de Camargo R.V.,Saron C.. Mechanical–Chemical Recycling of Low-Density Polyethylene Waste with Polypropylene[J]. Journal of Polymers and the Environment,2020-01-01,28(3)