Experimental determination of the mechanical and hydrolytic properties of chitosan/rice husk ash composite membranes

被引:0
|
作者
Bindir, Haleematu Sadiya [1 ,2 ]
Ahmed, Ridwan A. [3 ]
Bello, Abdulhakeem [4 ]
Sanni, Samuel Eshorame [5 ,6 ,7 ]
Ngene, Peter [1 ,8 ]
Fashedemi, Omobosede O. [9 ]
Olatoyinbo, Seyi Festus [2 ]
Agboola, Olufemi [2 ]
Onwualu, Azikiwe Peter [1 ]
机构
[1] African Univ Sci & Technol, Dept Mat Sci & Engn, Abuja Fct 900107, Nigeria
[2] Inst Space Sci & Engn, Aerosp Engn, Abuja Fct 900107, Nigeria
[3] Worcester Polytech Inst, Dept Mech Engn, Program Mat Sci & Engn, 100 Inst Rd, Worcester, MA 01609 USA
[4] African Univ Sci & Technol, Theoret & Appl Phys, Abuja Fct 900107, Nigeria
[5] Covenant Univ, Dept Chem Engn, PMB 1023, Ota, Ogun State, Nigeria
[6] Covenant Univ, Ctr Res Innovat & Discovery, PMB 1023, Ota, Ogun State, Nigeria
[7] Parul Univ, Fac Engn, Dept Chem Engn, Ta Waghodia 391760, Gujarat, India
[8] Univ Utrecht, Debye Inst Nanomat Sci, Mat Chem & Catalysis, Univ Weg 99, NL-3584 CG Utrecht, Netherlands
[9] Univ Nottingham, Dept Mech Mat & Mfg Engn, RAD Bldg,Jubilee Campus, Nottingham NG8 1BB, England
关键词
Bio-filler composite; Chitosan polymer; Membrane swelling; Mixed matrix membrane; Water uptake; ANION-EXCHANGE MEMBRANES; SOLID POLYMER ELECTROLYTE; RICE HUSK; PROTON CONDUCTIVITY; NANOCOMPOSITE MEMBRANES; HYBRID MEMBRANES; GRAPHENE OXIDE; FABRICATION; PERFORMANCE; DERIVATIVES;
D O I
10.1016/j.ijbiomac.2024.138390
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
Chitosan-based membranes are promising alternatives to synthetic membranes in a number of specialized use cases, including water purification and electrochemical devices. In application, excessive swelling when hydrated can lead to poor mechanical integrity, necessitating modifications to the polymer so as to counter this effect. Embedding inorganic fillers within an organic polymer matrix is one method of combining excellent mechanical stability with good performance. This study investigated the effect of rice husk ash (RHA) on the mechanical and hydrolytic properties of chitosan-based composite membranes. We incorporated varying amounts of RHA into a chitosan solution and prepared thin film membranes via solution casting. We performed structural, chemical, and mechanical characterizations on the ash and membranes, observing 82.84 % water uptake in the 1.5 weight percent (wt%) RHA-doped membrane and 13.93 MPa tensile strength in the 2.0 wt% loaded composite. As the RHA content increased, the swelling ratio of the composites with RHA loadings greater than 1.0 wt% decreased, indicating an enhancement in mechanical strength. The observed results demonstrate that combining improved mechanical strength with increased water absorption and reduced swelling can lead to optimal membrane characteristics.
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页数:16
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