Synthesis, structure, and mechanical properties of castor oil-based polyamidoamines toughened epoxy coatings

2012 ◽  
Vol 128 (6) ◽  
pp. 4023-4030 ◽  
Author(s):  
Ehsan Abbasi ◽  
Mohammad Vatankhah ◽  
Yaser Hosseini ◽  
Mohammad Amin Ariana ◽  
Masoumeh Ayazi
Keyword(s):  
Mechanical Properties ◽  
Castor Oil ◽  
Epoxy Coatings ◽  
Toughened Epoxy

Effect of Castor Oil Impregnation on the Physical and Mechanical Properties of Bacterial Cellulose

2012 ◽  
Vol 3 (1) ◽  
pp. 13-26
Author(s):  
Myrtha Karina ◽  
Lucia Indrarti ◽  
Rike Yudianti ◽  
Indriyati
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Bacterial Cellulose ◽  
Young’S Modulus ◽  
Castor Oil ◽  
Young's Modulus ◽  
Physical And Mechanical Properties ◽  
Scanning Electron Micrographs ◽  
Elongation At Break ◽  
Acetone Water

The effect of castor oil on the physical and mechanical properties of bacterial cellulose is described. Bacterial cellulose (BC) was impregnated with 0.5–2% (w/v) castor oil (CO) in acetone–water, providing BCCO films. Scanning electron micrographs revealed that the castor oil penetrated the pores of the bacterial cellulose, resulting in a smoother morphology and enhanced hydrophilicity. Castor oil caused a slight change in crystallinity indices and resulted in reduced tensile strength and Young's modulus but increased elongation at break. A significant reduction in tensile strength and Young's modulus was achieved in BCCO films with 2% castor oil, and there was an improvement in elongation at break and hydrophilicity. Impregnation with castor oil, a biodegradable and safe plasticiser, resulted in less rigid and more ductile composites.

Castor Oil Based Polyurethane Nanocomposites with Cellulose Nanocrystallites Fillers

2013 ◽  
Vol 856 ◽  
pp. 309-313 ◽  
Author(s):  
Anupama Kaushik ◽  
Alka Garg
Keyword(s):  
Mechanical Properties ◽  
Castor Oil ◽  
Barrier Properties ◽  
Filler Loading ◽  
Total Weight ◽  
High Shear ◽  
Homogeneous Dispersion ◽  
Cotton Linters ◽  
Polyurethane Nanocomposites ◽  
Polyurethane Matrix

In this study the castor oil based polyurethane (PU) nanocomposites were prepared by dispersing the cellulose nanocrystallites (CNC) isolated from cotton linters. CNC was dispersed in PU matrix using ultrasonicator coupled with high shear homogenizer. The filler loading was varied from 0-10% of the total weight of the mixture. The PU/CNC nanocomposites were characterized by SEM, XRD, FTIR, mechanical and barrier properties. SEM confirmed homogeneous dispersion of CNCs in polyurethane matrix with small agglomerates at certain places. Improvement in mechanical properties was observed as compared to neat PU. Diffusivity and permeability of the nanocomposites was reduced at higher loadings of CNC.

Effect of CePO4 nanostructures in transparent PMMA/castor-oil based PU IPNs on thermal stability, optical and mechanical properties

2017 ◽  
Vol 24 (9) ◽  
Author(s):  
D. Palma-Ramírez ◽  
M. A. Domínguez-Crespo ◽  
A. M. Torres-Huerta ◽  
H. Dorantes-Rosales ◽  
J. A. Andraca-Adame ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Thermal Stability ◽  
Castor Oil ◽  
Optical And Mechanical Properties

Structure-Property Relationship of Castor Oil Based Chain Extended Polyurethane/Starch Biocomposites

2010 ◽  
Vol 123-125 ◽  
pp. 371-374
Author(s):  
Siddaramaiah ◽  
Manjula Koregala Sidde Gowda ◽  
Joong Hee Lee
Keyword(s):  
Mechanical Properties ◽  
Water Uptake ◽  
Castor Oil ◽  
Structure Property ◽  
X Ray ◽  
Property Relationship ◽  
Structure Property Relationship ◽  
Relationship Of

Polyurethane (PU)/starch biocomposites have been prepared with different weight fractions of starch (viz., from 0 to 40 wt %). The fabricated PU/starch composites were characterized by mechanical properties and thermal (DSC and TGA) behaviors. Microcrystalline parameters were calculated using X-ray profile. Water uptake and its effect on mechanical properties have been evaluated.

Toughened epoxy‐liquid polybutadiene networks cured with anhydride with outstanding thermal and mechanical properties

2020 ◽  
Vol 138 (14) ◽  
pp. 50175
Author(s):  
Bluma Guenther Soares ◽  
Adriana A. Silva ◽  
Verônica D. Lima ◽  
Deborah N. Barros ◽  
Sebastien Livi
Keyword(s):  
Mechanical Properties ◽  
Thermal And Mechanical Properties ◽  
Toughened Epoxy
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