Preparation and Properties of Polyurethane Adhesive Derived from Modified Rubber Seed Oil and Toluene Diisocyanates

2014 ◽  
Vol 931-932 ◽  
pp. 52-56
Author(s):  
Nitinart Saetung ◽  
Darunrat Dawkrajai ◽  
Anuwat Saetung
Keyword(s):  
Seed Oil ◽  
Peel Strength ◽  
Chain Extender ◽  
Polyurethane Adhesive ◽  
Rubber Seed Oil ◽  
Rubber Seed ◽  
H Nmr ◽  
Ft Ir ◽  
Cure Temperature ◽  
Adhesive Formulation

In this research, the polyurethane adhesive based on modified rubber seed oil with toluene diisocyanates was successfully synthesized in presence of DBTL catalyst. The chemical structure of modified rubber seed oil was characterized by 1H-NMR. The suitable reaction time of the polyurethane adhesive synthesis was 4h by providing with FT-IR technique. The effects of NCO index and chain extender (1,4-butane diols) content in adhesive formulation as well as cure temperature were also studied by leather to leather on adhesion peel strength. It was found that the higher NCO index or chain extender content gave the higher adhesion of substrate. The cure temperature of adhesive at 70 °C gave the better peel strength than that at 30 °C during 24 h.

Characterization of Epoxidized Rubber Seed Oil

2017 ◽  
Vol 728 ◽  
pp. 295-300
Author(s):  
Jutamas Kantee ◽  
Somjai Kajorncheappunngam
Keyword(s):  
Seed Oil ◽  
Proton Nuclear Magnetic Resonance ◽  
Epoxide Ring ◽  
Rubber Seed Oil ◽  
Spectra Analysis ◽  
Rubber Seed ◽  
H Nmr ◽  
Infrared Spectrometer ◽  
Ft Ir

Epoxidation of rubber seed oil was carried out using a peroxyacid generated in situ from glacial acetic acid and hydrogen peroxide to produce epoxidized rubber seed oil. The maximum relative conversion to oxirane of 88 % could be obtained at 60 °C after a reaction time of 7 hours. The presence of oxirane ring of epoxidized rubber seed oil was confirmed by fourier transform infrared spectrometer (FT-IR) and proton nuclear magnetic resonance (1H NMR) spectra analysis which displayed a disappearance of double bonds peak in rubber seed oil and an existing of epoxide ring peak in epoxidized rubber seed oil.

scholarly journals Preliminary Assessment on the Effect of Bentonite and Ibeshe Clay on Bleaching of Rubber (Hevea Brasiliensis) Seed Oil

2019 ◽  
Vol 8 (4) ◽  
pp. 12274-12278
Keyword(s):  
Seed Oil ◽  
Research Work ◽  
Bentonite Clay ◽  
Xrd Analysis ◽  
Rubber Seed Oil ◽  
Physiochemical Properties ◽  
Rubber Seed ◽  
Natural Sense ◽  
Ft Ir ◽  
Removal Of Impurities

Rubber seed though not common known is very rich in its oil yield and over time its importance is becoming more prominent. Bleaching in the natural sense is relative to the removal of impurities from the oil or material. In this research work, Rubber seed oil was bleached using bentonite clay and Ibeshe clay at 0.5M, 1M and 2M concentrations of Hydrochloric acid. Physiochemical properties as well as spectroscopic analysis such as FT-IR and XRD analysis were carried out and aided in obtaining the bleaching efficiency of both clays. The FT-IR results displayed a visible change in the oil after it was bleached with Ibeshe clay but still retained most its functional group when bleached with bentonite clay. At 2M concentration of the acid, the oil bleached with bentonite showed 53% while with Ibeshe clay it remained at 16%. This summarizes that Ibeshe clay has little to no effect on bleaching performance.

scholarly journals Biodiesel production from rubber seed oil using calcium oxide derived from eggshell as catalyst – optimization and modeling studies

2019 ◽  
Vol 8 (1) ◽  
pp. 430-442 ◽  
Author(s):  
A.V.S.L. Sai Bharadwaj ◽  
Madhu Singh ◽  
S. Niju ◽  
K.M. Meera Sheriffa Begum ◽  
N. Anantharaman
Keyword(s):  
Calcium Oxide ◽  
Seed Oil ◽  
Biodiesel Production ◽  
Molar Ratio ◽  
Resonance Spectroscopy ◽  
Rubber Seed Oil ◽  
Rubber Seed ◽  
H Nmr ◽  
Marquardt Algorithm ◽  
Artificial Neural Network Ann

Abstract In the present study, Calcium oxide (CaO) obtained from eggshells has been used as a heterogeneous catalyst for biodiesel production from highly viscous non-edible rubber seed oil (RSO). Characterization of synthesized catalyst was done with the help of scanning electron microscope equipped with Energy dispersive spectrometry (SEM-EDS), X-ray diffraction (XRD) and Fourier transform Infrared spectroscopy (FTIR). Response surface methodology (RSM) with central composite design (CCD) was used to optimize the process parameters and 1H-NMR (Nuclear Magnetic Resonance) spectroscopy analysis was performed to find the conversion of RSO to biodiesel. A conversion of 99.7% of RSO to biodiesel was obtained at 12:1 methanol to oil molar ratio, 4 (wt%) of catalyst, and 3 hour reaction time with a quadratic regression model of R2 of value 0.9566 was obtained. The composition of prepared biodiesel is estimated with the help of Gas Chromatogram-Mass Spectroscopy (GC-MS) analysis. Artificial Neural Network (ANN) with Levenberg-Marquardt algorithm was also trained to predict biodiesel conversion and the value of R2 obtained was 0.9976. It was observed that predicted conversion values from ANN were better when compared to prediction using RSM.

scholarly journals Study on Selectivity of Tungstate-based catalyst in Epoxidation Reaction of modified and non-modified Rubber Seed Oil

2018 ◽  
Vol 34 (4) ◽  
Author(s):  
Nguyễn Thị Thủy
Keyword(s):  
Seed Oil ◽  
Titration Method ◽  
Rubber Seed Oil ◽  
Catalyst Selectivity ◽  
Rubber Seed ◽  
Titrimetric Method ◽  
H Nmr ◽  
Nmr Method ◽  
Epoxidation Reaction ◽  
The Difference

The selectivity of tungstate-based catalyst in the epoxidation reaction of rubber seed oil and modified rubber seed oil was studied in two ways. The titration method was performed according to the ASTM standard and the H-NMR method was based on the peaks of the three different standard groups. The catalyst selectivity of the epoxidation reaction of modified rubber seed oil was much higher than that of non-modified rubber seed oil for both methods. The average catalyst selectivity obtained by using H-NMR method of the modified rubber seed oil epoxidation reaction was equal, while of the rubber seed oil epoxidation reaction was 11% lower than that of the titrimetric method. For both types of oils, the difference between the catalytic selectivity obtained by using titration method and by using protons in group α-CH2-(C=O)-O- as the standard peak was the smallest and was the biggest when the protons in group -CH3 was used as the standard peak.

OPTIMISATION OF ENERGY AND MATERIALS IN ACID ESTERFICATION OF RUBBER SEED OIL THROUGH RSM AND ANN

2018 ◽  
Author(s):  
Jilse Sebastian ◽  
Vishnu Vardhan Reddy Mugi ◽  
C. Muraleedharan ◽  
Santhiagu A
Keyword(s):  
Seed Oil ◽  
Rubber Seed Oil ◽  
Rubber Seed

Experimental investigations to predict optimistic biodiesel(s) and its optimistic operating conditions by varying ignition delay period and fuel spray pressures for lower emissions and better performance

2020 ◽  
Vol 234 (19) ◽  
pp. 3890-3902
Author(s):  
Vishal V Patil ◽  
Ranjit S Patil
Keyword(s):  
Methyl Ester ◽  
Ignition Delay ◽  
Seed Oil ◽  
Delay Period ◽  
Operating Conditions ◽  
Experimental Investigations ◽  
Rubber Seed Oil ◽  
Rubber Seed ◽  
Neem Seed Oil ◽  
Ignition Delay Period

In this study, different characteristics of sustainable renewable biodiesels (those have a high potential of their production worldwide and in India) were compared with the characteristics of neat diesel to determine optimistic biodiesel for the diesel engine at 250 bar spray pressure. Optimistic fuel gives a comparatively lower level of emissions and better performance than other selected fuels in the study. Rubber seed oil methyl ester was investigated as an optimistic fuel among the other selected fuels such as sunflower oil methyl ester, neem seed oil methyl ester, and neat diesel. To enhance the performance characteristics and to further decrease the level of emission characteristics of fuel ROME, further experiments were conducted at higher spray (injection) pressures of 500 bar, 625 bar, and 750 bar with varying ignition delay period via varying its spray timings such as 8°, 13°, 18°, 23°, 28°, and 33° before top dead center. Spray pressure 250 bar at 23° before top dead center was investigated as an optimistic operating condition where fuel rubber seed oil methyl ester gives negligible hydrocarbon emissions (0.019 g/kW h) while its nitrogen oxide (NOX) emissions were about 70% lesser than those observed with neat diesel, respectively.

High value polyurethane resins from rubber seed oil

2016 ◽  
Vol 66 (1) ◽  
pp. 126-132 ◽  
Author(s):  
Jian Hong ◽  
Xiao-Qin Yang ◽  
Xianmei Wan ◽  
Zhifeng Zheng ◽  
Zoran S Petrović
Keyword(s):  
Seed Oil ◽  
Rubber Seed Oil ◽  
Rubber Seed

scholarly journals The study of interaction between rubber seed oil and epoxy resin

2021 ◽  
Vol 1030 ◽  
pp. 012011
Author(s):  
Elena Gotlib ◽  
Elena Cherezova ◽  
Anh Nguyen Thi Lan ◽  
Alla Sokolova
Keyword(s):  
Epoxy Resin ◽  
Seed Oil ◽  
Rubber Seed Oil ◽  
Rubber Seed
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