Vegetable oils are a viable sustainable substitute for mineral oils in industrial lubrication owing to their biodegradability and environmental benefits. However, their inadequate tribological properties hinder widespread adoption. This study addresses this challenge by developing and characterizing novel lubricant formulations based on blends of Neem Seed Oil (NSO) and Polyalphaolefin (PAO6), incorporating Ti3C2Tx MXene nanoparticles as an additive through different tribological techniques by considering various characteristics like Coefficient of friction, Wear scar diameter, extreme pressure properties etc. and wear scar morphology. A systematic investigation explored the impact of varying MXene concentrations (0.01–0.20 wt.%) and NSO-PAO6 ratios on tribological performance. Our findings reveal a combined interaction between NSO and PAO6, with a 75:25 NSO-PAO6 blend exhibiting superior base oil properties. Addition of 0.08 wt.% Ti3C2Tx MXene to this optimal blend significantly enhanced its tribological characteristics, demonstrating a 10% improvement in the coefficient of friction (COF) compared to the base oil and achieving performance comparable to ideal mineral oil blends. This optimized bio-lubricant formulation demonstrates the potential of NSO-PAO6-MXene nanoblend for sustainable lubrication in demanding automotive and industrial applications, offering a viable pathway towards replacing environmentally detrimental mineral oil-based lubricants.
AhmedMSNairKPTirthV, et al.Tribological evaluation of date seed oil and castor oil blends with halloysite nanotube additives as environment friendly bio-lubricants. Biomass Convers Biorefinery2021: 1–10.
2.
OudaOKMRazaSANizamiAS, et al.Waste to energy potential: a case study of Saudi Arabia. Renew Sustain Energy Rev2016; 61: 328–340.
3.
NajiSZTyeCTAbdAA. State of the art of vegetable oil transformation into biofuels using catalytic cracking technology: recent trends and future perspectives. Process Biochem2021; 109: 148–168.
4.
BrahmaSNathBBasumataryB, et al.Biodiesel production from mixed oils: a sustainable approach towards industrial biofuel production. Chem Eng J Adv2022; 10: 100284.
5.
SherFYaqoobASaeedF, et al.Torrefied biomass fuels as a renewable alternative to coal in co-firing for power generation. Energy2020; 209: 118444.
6.
Al-JubooriOSherFKhalidU, et al.Electrochemical production of sustainable hydrocarbon fuels from CO2Co-electrolysis in eutectic molten melts. ACS Sustain Chem Eng2020; 8: 12877–12890.
7.
KhademMKangW-BKimDE. Green tribology: a review of biodegradable lubricants—properties, current Status, and future improvement trends. Int J Precis Eng Manuf - Green Technol2024; 11: 565–583.
8.
AluyorEOOri-jesuM. Biodegradation of mineral oils - A review. African J Biotechnol2009; 8: 915–920.
9.
ChoudhuryNDSahaNBhaumikS,et al.Production and evaluation of physicochemical, rheological, and tribological properties of Cucurbita pepo L. Seed oil. Biomass Conversion and Biorefinery2023; 13: 1101–1114.
10.
JayadasNHPrabhakaran NairKGA. Tribological evaluation of coconut oil as an environment-friendly lubricant. Tribol Int2007; 40: 350–354.
11.
EdlaSThampiADPrasannakumarP,et al.Evaluation of physicochemical, tribological and oxidative stability properties of chemically modified rice bran and karanja oils as viable lubricant base stocks for industrial applications. Tribol Int2022; 173: 107631.
12.
RaniSJoyMLNairKP. Evaluation of physiochemical and tribological properties of rice bran oil - biodegradable and potential base stoke for industrial lubricants. Ind Crops Prod2015; 65: 328–333.
13.
ShahabuddinMMofijurMRizwanul FattahIM, et al.Study on the tribological characteristics of plant oil-based bio-lubricant with automotive liner-piston ring materials. Curr Res Green Sustain Chem2022; 5: –6.
14.
BhaumikSDattaSPathakSD. Analyses of tribological properties of castor oil with various carbonaceous microand nano-friction modifiers. J Tribol2017; 139: 061802.
15.
McNuttJHeQS. Development of biolubricants from vegetable oils via chemical modification. J Ind Eng Chem2016; 36: 1–12.
16.
IslasJFAcostaEG-BuentelloZ, , et al.An overview of neem (Azadirachta indica) and its potential impact on health. J Funct Foods2020; 74: 104171..
17.
KumarSSinghNDeviLS, et al.Neem oil and its nanoemulsion in sustainable food preservation and packaging: current status and future prospects. J Agric Food Res2022; 7: 100254.
18.
MenonKSRajasekaranA. Evaluation of tribological properties and sustainability of bio-lubricant developed from neem seed oil for real-life application. Tribol Int2023; 190: 248–264.
19.
LiKZhangXDuC, et al.Friction reduction and viscosity modification of cellulose nanocrystals as biolubricant additives in polyalphaolefin oil. Carbohydr Polym2019; 220: 228–235.
20.
KumarHHarshaAP. Augmentation in tribological performance of polyalphaolefins by COOH-functionalized multiwalled carbon nanotubes as an additive in boundary lubrication conditions. J Tribol2021; 143: 102202.
21.
MariñoFLiñeira del RíoJMGonçalvesDEP, et al.Effect of the addition of coated SiO2 nanoparticles on the tribological behavior of a low-viscosity polyalphaolefin base oil. Wear2023; 530–531: 205025.
22.
KreivaitisRGumbytėM. Investigation of mixture of vegetable oil and synthetic esters as environmentally friendly base stock for low-temperature lubrication applications. Tribol Ind2018; 40: 401–409.
23.
ShalwanAYousifBFAlajmiFH,et al.Tribological behavior of mild steel under canola biolubricant conditions. Adv Tribol2021; 2021: 1–13.
24.
KotturuCMVSrinivasVVandanaV, et al.Investigation of tribological properties and engine performance of polyol ester–based bio-lubricant: commercial motorbike engine oil blends. Proc Inst Mech Eng Part D J Automob Eng2020; 234: 1304–1317.
25.
BahariALewisRSlatterT. Friction and wear response of vegetable oils and their blends with mineral engine oil in a reciprocating sliding contact at severe contact conditions. Proc Inst Mech Eng Part J J Eng Tribol2018; 232: 244–258.
ValeruSBSrinivasYSumanKNS. An attempt to improve the poor performance characteristics of coconut oil for industrial lubricants. J Mech Sci Technol2018; 32: 1733–1737.
28.
PadgurskasJRukuižaRKreivaitisR, et al.Tribologic behaviour and suspension stability of iron and copper nanoparticles in rapeseed and mineral oils. Tribol - Mater Surfaces Interfaces2009; 3: 97–102.
29.
ShafiWKRainaAUl HaqMI. Friction and wear characteristics of vegetable oils using nanoparticles for sustainable lubrication. Tribol - Mater Surfaces Interfaces2018; 12: 27–43.
30.
RiaziHNemaniSKGradyMC, et al.Ti3C2MXene-polymer nanocomposites and their applications. J Mater Chem A2021; 9: 8051–8098.
31.
MaWLiTLiW, et al.Ti3C2Tx MXenes – an effective and long-storable oil lubricant additive. Tribol Int2023; 180: 1–10.
32.
LiuYZhangXDongS, et al.Synthesis and tribological property of Ti3C2TX nanosheets. J Mater Sci2017; 52: 2200–2209.
33.
ZaharinHAGhazaliMJKhalidM, et al.Tribological, oxidation and thermal analysis of advanced microwave–hydrothermal synthesised Ti3C2Tx MXene as additives in outboard engine oil. Lubricants2023; 11: 264.
34.
ZhouCLiZLiuS, et al.Synthesis of MXene-based self-dispersing additives for enhanced tribological properties. Tribol Lett2022; 70: 1–13.
35.
DasPSharmaNPuzariA, et al.Synthesis and characterization of neem (Azadirachta indica) seed oil-based alkyd resins for efficient anticorrosive coating application. Polym Bull2021; 78: 457–479.
36.
Ribeiro FilhoPRCFdo NascimentoMRCavalcanteCL,et al.Synthesis and tribological properties of bio-based lubricants from soybean oil. Biomass Convers Biorefinery2024; 14: 20509–20521.
37.
ChoudhuryNDBhaumikSSahaN,et al.Investigating the tribological properties of TiO2 nanoparticles added Thevetia peruviana and Cucurbita pepo L. Blend oils. Tribol Int2024; 197: 109769.
38.
TanwarDStateRControlP,et al.Production and characterization of neem oil methyl ester. Int, J Eng Res Technol2013; 2: 1896–1903.
39.
KareemullahMAfzalARehmanKF, et al.Preparation and physicochemical properties evaluation of epoxidized neem oil-based bio-lubricant. Aust J Mech Eng2023; 21: 942–951.
40.
HassanMSyahrullailSAniFN. The tribological characteristics of the cactus and mineral oil blends using four-ball tribotester. J Teknol2016; 78: 33–38.
41.
JabalMHAniFNSyahrullailS. The tribological characteristic of the blends of rbd palm olein with mineral oil using four-ball tribotester. J Teknol Sciences Eng2014; 69: 11–14.
42.
BantchevGBiresawG. Elastohydrodynamic study of vegetable oil-polyalphaolefin blends. Lubr Sci2008; 20: 283–297.
43.
ShankarSManikandanMKarupannasamyDK, et al.Investigations on the tribological behaviour, toxicity, and biodegradability of kapok oil bio-lubricant blended with (SAE20W40) mineral oil. Biomass Convers Biorefinery2023; 13: 3669–3681.
44.
SureshaBHemanthGRakeshA,et al.Tribological behaviour of neem oil with and without graphene nanoplatelets using four-ball tester. Adv Tribol2020; 968: 1–11.
45.
BiresawG. Biobased polyalphaolefin base oil: chemical, physical, and tribological properties. Tribol Lett2018; 66: 76.
46.
KumarHHarshaAP. Investigation on friction, antiwear, and extreme pressure properties of different grades of polyalphaolefins with functionalized multi-walled carbon nanotubes as an additive. J Tribol2020; 142: 1–14.
47.
SyahrullailSKamitaniSShakirinA. Tribological evaluation of mineral oil and vegetable oil as a lubricant. J Teknol Sciences Eng2014; 66: 37–44.
48.
ZhangZKarimi-MalehH. Label-free electrochemical aptasensor based on gold nanoparticles/titanium carbide MXene for lead detection with its reduction peak as index signal. Adv Compos Hybrid Mater2023; 6: 1–11.
49.
FengWLuoHWangY, et al.Ti3C2 MXene: a promising microwave absorbing material. RSC Adv2018; 8: 2398–2403.
50.
KumarRGautamRK. Tribological investigation of sunflower and soybean oil with metal oxide nanoadditives. Biomass Convers Biorefinery2024; 14: 2389–2401.
51.
Al-JanabiASHussinMAbdullahMZ. Stability, thermal conductivity and rheological properties of graphene and MWCNT in nanolubricant using additive surfactants. Case Stud Therm Eng2021; 28: 101607.
52.
FengQDengFLiK, et al.Enhancing the tribological performance of Ti3C2 MXene modified with tetradecylphosphonic acid. Colloids Surfaces A Physicochem Eng Asp2021; 625: 126903.
53.
BakthavatchalamBHabibKSaidurR, et al.Optimization of thermophysical and rheological properties of mxene ionanofluids for hybrid solar photovoltaic/thermal systems. Nanomaterials2021; 11: 1–28.
54.
WenGWenXCaoH, et al.Fabrication of Ti3C2 MXene and tetradecylphosphonic acid@MXene and their excellent friction-reduction and anti-wear performance as lubricant additives. Tribol Int2023; 186: 108590.
55.
YangJChenBSongH, et al.Synthesis, characterization, and tribological properties of two-dimensional Ti3C2. Cryst Res Technol2014; 49: 926–932.
56.
FengQYangJDouM, et al.Modified Ti3C2TX MXene/GO nanohybrids: an efficient lubricating additive for tribological applications. Arab J Sci Eng2024; 49: 10349–10361.
57.
ChenWThummavichaiKChenX, et al.Design and evaluation the anti-wear property of inorganic fullerene tungsten disulfide as additive in pao6 oil. Crystals2021; 11: 1–17.
