Deciphering van der Waals interaction between polypropylene and carbonated fly ash from experimental and molecular simulation

Hwang, Sosan; Jin, Sung Hoon; Kim, Yongha; Seo, Jin Sung; So, Jae-Il; Kim, Jin-Cheol; Lee, Yongjin; Baeck, Sung‐Hyeon; Shim, Sang Eun; Qian, Yingjie

doi:10.1016/j.jhazmat.2021.126725

Cited by 5 publications

(1 citation statement)

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“…Following the impression of combining cementitious materials with fly ash, many researchers have extended the reinforcing technology beyond construction industries, including polymer composites [ 39 , 40 , 41 ]. Scientists also found high interfacial compatibility between fly ash and plastics, making them suitable for fabricating composites of such kind [ 40 , 42 , 43 ]. The ceramic nature of fly ash particles improves the mechanical performance and physical properties of their reinforced composites, allowing them to be used in several heavy industries, including automotive, aerospace and construction.…”

Section: Introductionmentioning

confidence: 99%

Performance for Fly Ash Reinforced HDPE Composites over the Ageing of Material Components

Alghamdi

2022

Polymers

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The by-product abundances of fly ash allow them to be used as the reinforcing filler for high-volume and high-performance thermoplastic composites. However, the durability of the composites remains questioned as polymer degradation during environmental weathering creates brittle materials, leading to surface cracks, which potentially release hazardous fly ash particles into the environment. This paper reports the effect of environmental ageing (UV and moisture exposure) on the morphological and mechanical properties of fly ash mixed high-density polyethylene (FA/HDPE) composites with three dissimilar weight fractions (5, 10 and 15 wt%) of filler and compared the results with similarly aged neat HDPE samples. The consequence of environmental ageing on the elevated mechanical properties of composites is investigated. Fifteen wt% fly ash reinforced composite appears to have better morphological and mechanical properties after 20 weeks of ageing, with only ~5 and ~9% reduction in Young’s modulus and tensile strength, respectively. The driving factors controlling the ageing effects are broadly discussed and recommendations are made for research advancements.

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