Results 11 to 20 of about 2,759 (198)

Synthesis and tribological evaluation of sesame oil-based trimethylolpropane ester

Journal of the Chinese Advanced Materials Society, 2015
Synthesis of polyol ester as novel biodegradable base stock from sesame seed oil for lubricant production was conducted via chemical transesterification of sesame methyl ester (SME) with trimethylolpropane (TMP) using calcium hydroxide catalyst. The reactions were carried out under varying temperatures (80 to 160°C) and methyl esters to TMP mole ratios
Menkiti, Matthew Chukwudi, Ocheje Ocholi, Kechinyere Bibian Oyoh, Okechukwu Dominic Onukwuli   +3 more
openaire   +3 more sources

Wear prevention characteristics of a palm oil-based TMP (trimethylolpropane) ester as an engine lubricant [PDF]

Energy, 2013
This paper presents the experimental results carried out to evaluate wear prevention characteristics of a palm oil-based TMP (trimethylolpropane) ester using a four-ball machine for different regime of lubrication. The TMP ester is produced from palm oil,
Ahmmad, Md Shahabuddin, Hassan, Masjuki, Kalam, Md. Abul, Mohd Zulkifli, Nurin Wahidah, Yunus, Robiah   +4 more
core   +3 more sources

Kinetics and thermodynamics of synthesis of palm oil-based trimethylolpropane triester using microwave irradiation

Journal of Saudi Chemical Society, 2020
Enhancement of reaction performance utilizing microwave irradiation has drawn so much interest due to its shorter reaction time and low catalyst loading. These advantages are particularly significant from kinetics and thermodynamics perspectives.
Nur Atiqah Mohamad Aziz, Hamidah Abd Hamid, Robiah Yunus, Zulkifly Abbas, Rozita Omar, Umer Rashid, Azhari Muhammad Syam   +6 more
doaj   +3 more sources

Synthesis of high oleic palm oil-based trimethylolpropane esters in a vacuum operated pulsed loop reactor [PDF]

Fuel, 2016
The experimental studies have shown that a pulsed loop reactor can be used to successfully reduce the reaction time for the transesterification of oils and fats.
Abd Hamid, Hamidah, Ali, Salmiaton, Choong, Thomas Shean Yaw, Muhammad Syam, Azhari, Rashid, Umer, Yunus, Robiah   +5 more
core   +3 more sources

Optimisation of trimethylolpropane ester synthesis from waste cooking oil methyl ester by response surface methodology, and its physicochemical properties and tribological characteristics

Results in Engineering
This study is focused on optimising the process variables of trimethylolpropane (TMP) ester synthesis from waste cooking oil methyl ester (WCOME) using response surface methodology with Box–Behnken experimental design in order to maximise the TMP ester ...
Teuku Meurah Indra Riayatsyah, Arridina Susan Silitonga, Md Abul Kalam, Islam Md Rizwanul Fattah   +3 more
doaj   +3 more sources

D-Optimal Design Optimization for Esterification of Palm Fatty Acids Distillate with Polyhydric Alcohols for Biolubricants Production [PDF]

Iranian Journal of Chemistry & Chemical Engineering, 2022
Plant-based bio-lubricant is crucial to be developed and adopted by many industries.  This is due to the presence of toxicity risk, climate change, energy security as well green-environmental approach issues.
Majd Ahmed Jumaah, Nadia Salih, Jumat Salimon   +2 more
doaj   +1 more source

Study on kenaf powder reinforced cement materials for concrete 3d printing process [PDF]

, 2021
The use of kenaf fibre in concrete possesses great advantages than other natural fibres. The advance development like three-dimensional concrete printing (3DCP) is still at early stage which is at development of concrete composite materials for ...
Mohd Zainuri, Mohamad Izwan Saifudin
core   +1 more source

Prospects of Plant-Based Trimethylolpropane Esters in the Biolubricant Formulation for Various Applications: A Review

Frontiers in Mechanical Engineering, 2022
Biodegradable lubricants from renewable feedstocks have been successfully developed to meet the demands of new machines with stringent requirements of the global standards, which address sustainability and environmental policy.
Nurliyana A. Raof, Hamidah Abd Hamid, Nur Atiqah Mohamad Aziz, Robiah Yunus   +3 more
doaj   +1 more source

In Situ UV Torsional Force Spectroscopy for Real-Time Mapping of Cross-linking Kinetics and Mechanical Properties in Polymeric Films. [PDF]

Small Methods
This study introduces an in situ UV torsional force spectroscopy method to track how polymers harden under UV light. The technique maps stiffness and energy loss beneath the surface in real time. It reveals how cross‐linking develops and identifies regions with different mechanical behavior, helping optimize UV curing processes in polymer materials ...
Hoffer M, Petersein F, Dehnert M, Lintner TA, Sezen H, Hofmann JP, Dietz C.   +6 more
europepmc   +2 more sources

Flow activation quantities of trimethylolpropane ester.

Journal of The Japan Petroleum Institute, 1982
The flow activation quantities of eight trimethylolpropane esters and two mixtures were experimentally determined at 313.2K. The relation between activation quantities and molecular structures of these esters was discussed. The activation quantities of the physical mixtures were compared with those of the corresponding "chemical" mixtures of the same ...
Yasukatsu TAMAI, Takashi KYOTANI
openaire   +2 more sources