Modeling the Rheological Behavior of Chemically Interesterified Blends of Palm Stearin/Canola Oil as a Function of Physicochemical Properties

2019 ◽  
Vol 96 (11) ◽  
pp. 1219-1234 ◽  
Author(s):  
Zahra Saghafi ◽  
Mohammad Hossein Naeli ◽  
Mahnaz Tabibiazar ◽  
Azizollaah Zargaraan
Keyword(s):  
Physicochemical Properties ◽  
Rheological Behavior ◽  
Canola Oil ◽  
Palm Stearin

Chemical Interesterification of Blends of Palm Stearin, Coconut Oil, and Canola Oil: Physicochemical Properties

2012 ◽  
Vol 60 (6) ◽  
pp. 1461-1469 ◽  
Author(s):  
Fabiana Andreia Schäfer De Martini Soares ◽  
Roberta Claro da Silva ◽  
Márcia Hazzan ◽  
Isabele Renata Capacla ◽  
Elise Raduan Viccola ◽  
...  
Keyword(s):  
Physicochemical Properties ◽  
Canola Oil ◽  
Coconut Oil ◽  
Palm Stearin ◽  
Chemical Interesterification

scholarly journals Physicochemical Properties of Blends of Palm Mid-Fraction, Palm Stearin and Olive Oil

2014 ◽  
Vol 37 (1) ◽  
pp. 57-62 ◽  
Author(s):  
Nazaruddin Ramli ◽  
Mamot Said ◽  
Abu Bakar Aftar Mizan ◽  
Yen-Nee Tan ◽  
Mohd Khan Ayob
Keyword(s):  
Physicochemical Properties ◽  
Olive Oil ◽  
Palm Stearin

INFLUENCE OF SPACE HOLDER ON RHEOLOGICAL BEHAVIOR OF COPPER FEEDSTOCKS FOR METAL INJECTION MOLDING

2015 ◽  
Vol 76 (6) ◽  
Author(s):  
Mohammad Dahar Kamal Bahrin ◽  
Nor ‘Aini Wahab ◽  
Nor Amalina Nordin ◽  
Muhammad Hussain Ismail ◽  
Ismail Nasiruddin Ahmad
Keyword(s):  
Injection Molding ◽  
Rheological Behavior ◽  
Flow Behavior ◽  
Palm Stearin ◽  
Metal Injection Molding ◽  
Plastic Behavior ◽  
Flow Behavior Index ◽  
Space Holder ◽  
Porous Copper

The characterization of MIM feedstock consisting of 63 vol% of copper powder with a binder system consisting of palm stearin (PS) and low density polyethylene (LDPE) was studied. To achieve porous structure, sodium chloride (NaCl) was added as a space holder. The effect of shear rate (s-1), temperature (oC) and viscosity (Pa.s) on the rheological behavior of solid and porous copper feedstocks were investigated by using the Rosand RH2000 Capillary Rheometer at temperatures of 160, 170 and 180oC. The feedstocks achieved desirable injection molding characteristics such as pseudo-plastic behaviour, stable flow, flow behavior index less than 1 (n<1) and low activation energy (E). It can be concluded from the analysis that both feedstocks showed a good pseudo-plastic behavior within acceptable ranges in MIM. 

An Influence of a Binder System to the Rheological Behavior of the SS316L Metal Injection Molding (MIM) Feedstock

2011 ◽  
Vol 264-265 ◽  
pp. 554-558 ◽  
Author(s):  
Khairur Rijal Jamaludin ◽  
Norhamidi Muhamad ◽  
Hooman Abolhasani ◽  
Hadi Murthadha ◽  
Mohd Nizam Ab. Rahman
Keyword(s):  
Activation Energy ◽  
Shear Rate ◽  
Injection Molding ◽  
Rheological Behavior ◽  
Flow Behavior ◽  
Palm Stearin ◽  
Metal Injection Molding ◽  
Binder System ◽  
Flow Behavior Index ◽  
Injection Molded

The influence of a binder system to the rheological behavior of a Metal Injection Molding (MIM) feedstock is presented in the paper. The binder systems used are: a) PEG & PMMA b) Palm stearin & LLDPE and, c) Tapioca starch & LLDPE. The viscosity and shear rate of the feedstocks were measured at various range of temperature and shear rate across the L/D = 10 capillary rheometer. The flow behavior index, n and activation energy, E of each feedstock were measured to show its significance as MIM feedstock. Generally, the result indicates all feedstock exhibits a shear thinning behavior and the binders are suitable as MIM binder. Additionally, the present paper has discovered that the binder system does not have much influence to the activation energy. In order to show the relevance of the rheological behavior to the actual injection molding performance, green parts has been injection molded and the result shows an agreement with the rheological behavior result.

Rheological Behavior of Yttria Stabilized Zirconia (YSZ) Feedstock for Ceramic Injection Moulding (CIM) Process

2017 ◽  
Vol 882 ◽  
pp. 119-123
Author(s):  
Mahfuzah Zainudin ◽  
Muhammad Hussain Ismail
Keyword(s):  
Rheological Behavior ◽  
Injection Moulding ◽  
Flow Behavior ◽  
Palm Stearin ◽  
Stabilized Zirconia ◽  
Flow Behavior Index ◽  
Green Strength ◽  
Ceramic Injection Moulding ◽  
Behavior Index

The characterization of CIM feedstock consisting 58, 59, 60vol% of YSZ powder with binder system comprising a palm stearin (PS) and low density polyethylene (LDPE) were studied. The effects of powder loading and temperature (°C) on the rheological behavior of the YSZ were investigated by using Rosand RH2000 Capillary Rheometer. The results showed all the feedstock achieved desirable injection moulding characteristics such as pseudoplastic behavior, flow behavior index (n) less than 1 and low activation energy (E). The rectangular parts were successfully injected moulded at optimum temperature of 170°C with the highest green strength was 12.7 N, obtained from 60 vol% powder loading which correspond to greater density and low porosity of the samples.

scholarly journals Development of zero-trans shortenings with high thermo-oxidative stability by enzymatic transesterification

2020 ◽  
Vol 71 (4) ◽  
pp. 375
Author(s):  
E. Gruczynska-Sekowska ◽  
F. Aladedunye ◽  
F. Anwar ◽  
P. Koczon ◽  
D. Kowalska ◽  
...  
Keyword(s):  
Canola Oil ◽  
Structured Lipids ◽  
Solid Fat Content ◽  
Palm Stearin ◽  
Novozym 435 ◽  
Crystal Formation ◽  
The Novel ◽  
Enzymatic Transesterification ◽  
Frying Performance ◽  
Novozym 435 Lipase

Novel zero-trans frying shortenings were formed by enzymatic transesterification by exploring a palm stearin and canola oil mixture and stearic acid as substrates. Both immobilized (Novozym 435, Lipase PS “Amano” IM) and non-immobilized (Lipomod TM 34P) enzymes were applied as biocatalysts. Palmitic acid, the fatty acid which defines the proper type of crystal formation, was present at the 15% level in the reaction mixtures. The novel structured lipids had comparable physical properties and offered similar frying performance to those of commercial shortening. Needle-shaped crystals were predominant both in the transesterification products and the commercial frying shortening. Furthermore, solid fat content profiles of the zero-trans structured lipids produced by Novozym 435 and Lipase PS “Amano” IM were close to those of the commercial shortening.

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