scholarly journals The impact of reducing fatty acid desaturation on the composition and thermal stability of rapeseed oil

2019 ◽  
Vol 18 (4) ◽  
pp. 983-991 ◽  
Author(s):  
Harjeevan Kaur ◽  
Lihong Wang ◽  
Natalia Stawniak ◽  
Raymond Sloan ◽  
Harrie Erp ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Fatty Acid ◽  
Rapeseed Oil ◽  
Fatty Acid Desaturation ◽  
The Impact ◽  
Thermal Stability Of

Evaluation of the Impact of Fatty Acid Methyl Ester (FAME) Contamination on the Thermal Stability of Jet A

2013 ◽  
Author(s):  
Jr Morris ◽  
Shardo Robert W. ◽  
Higgins James ◽  
Cook Kim ◽  
Tanner Rhonda ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Fatty Acid ◽  
Methyl Ester ◽  
Fatty Acid Methyl Ester ◽  
Acid Methyl Ester ◽  
Acid Methyl ◽  
The Impact ◽  
Thermal Stability Of

Thermal stability of photosystem II of Arabidopsis mutants deficient in fatty acid desaturation

1994 ◽  
Vol 22 (3) ◽  
pp. 379S-379S
Author(s):  
NELLY M. TSVETKOVA ◽  
EMELIA APOSTOLOVA ◽  
W. PATRICK WILLIAMS ◽  
PETER J. QUINN
Keyword(s):  
Thermal Stability ◽  
Fatty Acid ◽  
Photosystem Ii ◽  
Fatty Acid Desaturation ◽  
Arabidopsis Mutants ◽  
Thermal Stability Of

Thermal Stability of Rapeseed Oil Fortified with Unsaturated Fatty Acid Sterol Esters

2014 ◽  
Vol 91 (10) ◽  
pp. 1793-1803 ◽  
Author(s):  
Deng Qianchun ◽  
Shi Jie ◽  
Zheng Mingming ◽  
Xu Jiqu ◽  
Wan Chuyun ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Fatty Acid ◽  
Unsaturated Fatty Acid ◽  
Rapeseed Oil ◽  
Sterol Esters ◽  
Thermal Stability Of

Properties of HDPE/Clay/Wood Nanocomposites

2007 ◽  
Author(s):  
Q. Wu ◽  
Y. Lei ◽  
F. Yao ◽  
Y. Xu ◽  
K. Lian
Keyword(s):  
Thermal Stability ◽  
Tensile Elongation ◽  
Tensile Modulus ◽  
Crystallization Rate ◽  
Clay Content ◽  
Melt Compounding ◽  
Storage And Loss Moduli ◽  
Organic Clay ◽  
The Impact ◽  
Thermal Stability Of

Composites based on high density polyethylene (HDPE), pine flour, and organic clay were made by melt compounding and injection molding. The influence of clay on crystallization behavior, mechanical properties, water absorption, and thermal stability of HDPE/pine composites were investigated. The HDPE/pine composites containing exfoliated clay were made by a two-step melt compounding procedure with a maleated polyethylene (MAPE) as a compatibilizer. Adding 2% clay to a HDPE/pine composite without MAPE decreased the crystallization temperature (Tc) and rate, and the crystallinity level. When 2% MAPE was added, the Tc and crystallization rate increased, but the crystallinity level was lowered. The flexural strength and the tensile strength of HDPE/pine composites increased 19.6% and 24.2% respectively with addition of 1% clay but then decreased slightly as the clay content was increased to 3%. The tensile modulus and tensile elongation were increased 11.8% and 13% respectively with addition of 1% clay but the storage and loss moduli barely change as the clay content was increased to 3%. The impact strength was lowered 7.5% by adding 1% clay, but did not decrease further as more clay was added. The moisture content and thickness swelling of the HDPE/pine composites was reduced by the clay, but did not improve the thermal stability.

The Effects of Oil Palm Fruit Bunch (OPFB) Fiber and Coupling Agent Loadings on the Performance of Hybrid Composites

2012 ◽  
Vol 535-537 ◽  
pp. 154-160 ◽  
Author(s):  
Anizah Kalam ◽  
M.N. Berhan ◽  
Hanafi Ismail
Keyword(s):  
Thermal Stability ◽  
Tensile Strength ◽  
Oil Palm ◽  
Hybrid Composites ◽  
Tensile Modulus ◽  
Palm Fruit ◽  
Degradation Tests ◽  
Mechanical Performances ◽  
The Impact ◽  
Thermal Stability Of

Hybrid composites were prepared by incorporating oil palm fruit bunch (OPFB) fibre in the mixture of clay and polypropylene as secondary filler. OPFB and MAPP loadings were varied to investigate it effects on the performance. Tensile and impact tests were performed on the hybrid composites to evaluate their mechanical performances. Water absorption and thermal degradation tests were also conducted on the hybrid composites. Results indicated that the incorporation of OPFB in PP/PPnanoclay has decreased the thermal stability of hybrid composites. Tensile modulus of hybrid composites increased as the OPFB loading increases and further increased with the increasing of MAPP loading. Generally the tensile strength has decreased with the addition of OPFB, however slight increased was observed when the MAPP loading was increased. The impact strength has also increased with the increasing of OPFB for higher MAPP loading.

Vinyl-terminated butadiene acrylonitrile improves the toughness, processing window, and thermal stability of bismaleimide resin

2016 ◽  
Vol 29 (10) ◽  
pp. 1199-1208 ◽  
Author(s):  
Dezhi Wang ◽  
Xin Wang ◽  
Lizhu Liu ◽  
Chunyan Qu ◽  
Changwei Liu ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Mechanical Performance ◽  
Resin System ◽  
Excellent Performance ◽  
Bismaleimide Resin ◽  
Processing Window ◽  
Low Viscosity ◽  
Isothermal Test ◽  
The Impact ◽  
Thermal Stability Of

Structural materials with excellent toughness, a wide processing window, outstanding mechanical performance, and high thermal stability are highly desired in engineering. This work reports a novel bismaleimide (BMI) resin system fabricated using bis[4-(4-maleimidephen-oxy)phenyl)]propane (BMPP), 1-(2-methyl-5-(2,5-dioxo-2H-pyrrol-1(5 H)-yl) phenyl)-1H-pyrrole-2,5-dione (BTM), and diallyl bisphenol A (DABPA) by a melt method. The behaviors of the BTM/BMPP/DABPA resin were modified by adding vinyl-terminated butadiene acrylonitrile (VTBN) in various amounts. The cured BTM/BMPP/DABPA/VTBN resin system exhibited all of the abovementioned desirable properties. Excellent performance was achieved by the post-cured BMI resin containing 6 phr of VTBN (VTBN-6). The glass transition temperature ( Tg) and the 5% weight loss temperature of VTBN-6 were 278°C and 408°C, respectively. Relative to VTBN-0 (BMI resin without VTBN), the impact strength of cured VTBN-6 (12.32 KJ/m2) improved by 45.6%, and the fracture toughness values, KIC and GIC, increased by 48.7% and 26%, respectively. Moreover, the prepolymer of VTBN-6 exhibited low viscosity over a wide temperature range (70–200°C) under dynamic conditions and for an extended time (70 min; 75% improvement over VTBN-0) in an isothermal test. These results confirm the wide processing window of VTBN-6. The high toughness of the VTBN-containing BMI resin was compatible with other excellent performances of the modified resin.

The impact of calendar aging on the thermal stability of a LiMn2O4–Li(Ni1/3Mn1/3Co1/3)O2/graphite lithium-ion cell

2014 ◽  
Vol 268 ◽  
pp. 315-325 ◽  
Author(s):  
Patrick Röder ◽  
Barbara Stiaszny ◽  
Jörg C. Ziegler ◽  
Nilüfer Baba ◽  
Paul Lagaly ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Lithium Ion ◽  
Lithium Ion Cell ◽  
The Impact ◽  
Thermal Stability Of

Synthesis and Optimization of Trimethylolpropane Rapeseed Oil Ester

2014 ◽  
Vol 1015 ◽  
pp. 610-614
Author(s):  
Ying Wang ◽  
Cun Zhou ◽  
Guo Zheng ◽  
Yu Sun
Keyword(s):  
Thermal Stability ◽  
Fatty Acids ◽  
Rapeseed Oil ◽  
Acid Methyl Ester ◽  
Mass Ratio ◽  
Optimum Conditions ◽  
Reaction Conditions ◽  
Base Oil ◽  
Acid Methyl ◽  
Thermal Stability Of

Lubricant base oil is an environmentally friendly lubricant with good lubricity and biodegradability. The thermostability and stability of rapeseed oil get improved through chemical modification. Fatty acid methyl ester (FAME),prepared by rapeseed oil as starting material with methanol by transesterification,the composition of FAME was detected by gas chromatograph-mass spectrometer (GC-MS).Trimethylolpropane (TMP) esters of fatty acids were synthesized by transesterifying FAME with TMP using zinc oxide as catalyst. The structures of products were characterized by mean of FTIR. The reaction conditions were studied and optimized, the optimum conditions were as follows: the temperature at 140°C~150°C, the reactant mass ratio of 1:9, the reaction time for 6 h, the mass content of catalyst of 0.5%.The thermal stability of product was conducted by thermogravimetry (TG) .It could be concluded that TMP esters of fatty acids possess better thermal stability.

The Experimental Research on the Thermal Properties of Shape-Stabilized Phase Change Materials

2013 ◽  
Vol 291-294 ◽  
pp. 1159-1163
Author(s):  
Quan Ying Yan ◽  
Li Hang Yue ◽  
Li Li Jin ◽  
Ran Huo ◽  
Lin Zhang
Keyword(s):  
Thermal Stability ◽  
Fatty Acid ◽  
Phase Change ◽  
Phase Change Materials ◽  
Liquid Paraffin ◽  
Capric Acid ◽  
Good Thermal Stability ◽  
Change Material ◽  
Thermal Stability Of ◽  
Better Than

This paper investigated the thermal performance of shape stabilized phase change paraffin and shape-stabilized phase change fatty acid. And the PCMs are mixtures of 60% 46# paraffin and 40% liquid paraffin, 65 % 48# paraffin and 35% liquid paraffin,30%capric acid and 70% lauric acid, 30%capric acid and 70% myristic acid. Support material is high-density polyethylene. The results in this paper show that: Thermal stability of both of the two types of phase change materials are good, thermal stability of shape stabilized phase change fatty acid is better than that of paraffin. Results in this paper can provide references and basis for the application of phase change material walls in the practice building.

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