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Cellulose nanocrystal filled synthetic rubber: Sustainable production, environmental assessment and end-of-life biodegradation by polyphagous pests

文献类型： 外文期刊

作者： Yasin, Sohail 1 ; Hafeez, Muhammad 4 ; Hussain, Munir 6 ; Mahmood, Awais 7 ; Yihu, Song 2 ; Qiang, Zheng 2 ; Gheewala, Shabbir H. 7 ; Li, Xiaowei 9 ; Li, Yang 1 ; Shi, Jianfeng 1 ; Gu, Chaohua 1 ;

作者机构： 1.Zhejiang Univ, Hydrogen Energy Inst, Coll Energy Engn, Hangzhou 310000, Peoples R China

2.Zhejiang Univ, MOE Key Lab Macromol Synth & Functionalizat, Dept Polymer Sci & Engn, Hangzhou 310027, Peoples R China

3.Zhejiang Univ, Inst Proc Equipment, Coll Energy Engn, Hangzhou 310027, Peoples R China

4.Oregon State Univ, Dept Hort, Corvallis, OR 97331 USA

5.USDA, ARS, Hort Crops Res Unit, 3420 NW Orchard Ave, Corvallis, OR 97330 USA

6.Zhejiang Sci Tech Univ, Coll Text Sci & Engn, Hangzhou 310018, Peoples R China

7.King Mongkuts Univ Technol Thonburi, Joint Grad Sch Energy & Environm, Bangkok 10140, Thailand

8.Minist Higher Educ Sci Res & Innovat, Ctr Excellence Energy Technol & Environm, Bangkok 10400, Thailand

9.Zhejiang Acad Agr Sci, Inst Plant Protect & Microbiol, Hangzhou 310021, Peoples R China

10.Donghai Lab, Zhoushan 316021, Peoples R China

关键词： Plastic and rubber recycling; Life cycle assessment; Cellulose nanocrystal; Waste biodegradation; SBR; Fall armyworm(SpodopteraFrugiperda)

期刊名称：SUSTAINABLE MATERIALS AND TECHNOLOGIES （ 影响因子：9.6； 五年影响因子：9.9 ）

ISSN： 2214-9937

年卷期： 2024 年 40 卷

页码：

收录情况： SCI

摘要： Plastic and rubber productions have reached staggering levels, leading to environmental concerns and accumulation of microplastics (MPs) rising in ecosystems. Rubber tires, a major source of MPs, pose further challenges due to excessive use of carbon black (CB) nanofillers in their manufacturing process, stresses on adding the element of sustainability to these products. This study emphasizes on the production of bio-based cellulose nanocrystals (CNC) filled synthetic rubber with sustainability assessment through life cycle assessment (LCA). It investigates the end-of-life (EOL) biodegradation potentials of rubber waste using a polyphagous pest, fall armyworm (FAW) (Spodoptera frugiperda). The results revealed that the production of CNC filled rubber demonstrate enhanced modulus compared to CB nanofillers, while requires substantial resource consumption, impacting abiotic resource depletion-fossil fuels (ADPf), freshwater ecotoxicity (CTUe), global warming potential (GWP), particulate matter (PM) and other impact categories. Emissions associated with CNC filled rubber during EOL phase are comparatively lower than CB, rendering CNC based rubbers a potentially viable choice from an environmental sustainability perspective. EOL pest biodegradation of CNC filled rubber showed negligible to no discernible physiological effects, potentially attributed to the presence of a diverse gut microbiota community in FAW (S. frugiperda). These findings highlight the relationship between physiochemical properties and CNC biodegradability in synthetic rubbers, aiding the development of sustainable EOL strategies for rubber waste management.

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