A study of industrial lime sludge waste as filler in hybrid polymeric composites

International Conference on Mechanical, Materials and Renewable Energy

机械制造;材料科学;能源学

Kashyap, Satadru^1 ; Islam, Jahidul^1 ; Datta, Dilip^1

Department of Mechanical Engineering, Tezpur University, Napaam, Assam, Sonitpur

784028, India^1

关键词: Environmental hazards;    High density polyethylene(HDPE);    Interfacial bonding;    Maleic anhydride compatibilizer;    Manufacturing cost;    Polymeric composites;    Reinforcing fillers;    Water absorption rates;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/377/1/012019/pdf
DOI  :  10.1088/1757-899X/377/1/012019

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Industrial lime sludge waste is an environmental hazard, which is usually disposed in dump yards causing pollution. This study aims to increase the viability of lime sludge (LS) by using it as filler in hybrid polymeric composites. Study of the mechanical properties of LS filled high density polyethylene (HDPE) and maleic anhydride grafted high density polyethylene (MAPE) revealed better properties of MAPE due to effective interfacial bonding at the filler-matrix boundary owing to the presence of maleic anhydride compatibilizer. LS also proved to be an effective reinforcing filler in case of short coir fibre - epoxy hybrid composites, thereby increasing their tensile strengths upon filler loading up to 9 wt %. LS improved thermal stability of the LS-coir-epoxy hybrid composites by increasing the thermal degradability and residual wt. %. However, it is observed that the addition of coir and LS in composites increased the water absorption rate of the composites significantly. Nevertheless, lime sludge proves to be an efficient filler in polymeric composites which would not only decrease pollution but also manufacturing cost of polymeric composites.