Interpenetrating polymer network from castor oil-based polyurethanes and poly(methyl acrylate). XIV

1989 ◽  
Vol 37 (3) ◽  
pp. 841-850 ◽  
Author(s):  
Prashant Patel ◽  
Bhikhu Suthar
Keyword(s):  
Methyl Acrylate ◽  
Castor Oil ◽  
Polymer Network ◽  
Interpenetrating Polymer Network

Effect of Cenosphere on the Performance of Polyurethane/Polystyrene Interpenetrating Polymer Network Green Composites

2017 ◽  
pp. 158-185
Author(s):  
Roopa S. ◽  
Siddaramaiah
Keyword(s):  
Thermal Stability ◽  
Tensile Strength ◽  
Thermogravimetric Analysis ◽  
Castor Oil ◽  
Polymer Network ◽  
Thermal Characteristics ◽  
Mechanical Analysis ◽  
Interpenetrating Polymer Network ◽  
Toluene Diisocyanate ◽  
Green Composites

The effect of cenosphere content on the performances of polyurethane/polystyrene (PU/PS, 90/10) interpenetrating polymer network (IPN) based green composites have been studied. The PU/PS IPNs have been prepared using castor oil, toluene diisocyanate and styrene. IPN/cenosphere composites have been prepared with different weight fractions viz., 0, 5, 10, 20 and 30 wt % of cenosphere. The prepared IPN composites have been characterized by physico – mechanical, chemical and thermal behavior. The tensile strength of unfilled IPN was 1.79 MPa and a significant improvement in tensile strength (34%) was noticed for 10% cenosphere loaded IPN composite. The swelling behavior of the composites has been studied in different organic solvents. Thermal characteristics of the composites have been measured using differential scanning calorimeter, thermogravimetric analysis and dynamic mechanical analysis (DMA). A slight improvement in thermal stability was noticed for filler loaded specimens. Morphological features of cryo-fractured IPN/cenosphere green composites have been analyzed using SEM.

scholarly journals Interpenetrating polymer network from castor oil-based polyurethanes and poly(methy1 acrylate). XIV

1989 ◽  
Vol 38 (4) ◽  
pp. 779-779
Author(s):  
Prashant Patel ◽  
Nilesh Parikh ◽  
T. Shah ◽  
Bhikhu Suthar
Keyword(s):  
Castor Oil ◽  
Polymer Network ◽  
Interpenetrating Polymer Network

Mechanical, Thermal and Morphological Behaviors of Coconut Shell Powder Filled Pu/Ps Biocomposites

2010 ◽  
Vol 123-125 ◽  
pp. 331-334
Author(s):  
S. Roopa ◽  
Siddaramaiah
Keyword(s):  
Castor Oil ◽  
Polymer Network ◽  
Interpenetrating Polymer Network ◽  
Toluene Diisocyanate ◽  
Coconut Shell ◽  
Mechanical And Thermal Properties ◽  
Degradation Kinetic ◽  
Particulate Filler ◽  
Coconut Shell Powder ◽  
Shell Powder

Castor oil based polyurethane (PU) interpenetrating polymer network (IPN) has been prepared by using castor oil, toluene diisocyanate and styrene monomer. The coconut shell powder (CSP) particulate filler with different weight ratios viz., 0, 5, 10, 20 and 30 wt % were incorporated into polyurethane/polystyrene (PU/PS, 90/10) IPN. The effects of CSP particulate filler loading on the physico - mechanical and thermal properties of PU/PS IPN biocomposites have been studied. From the tensile behavior, it was noticed that a significant improvement in tensile strength and tensile modulus with increase in CSP filler content. It was found that the degradation of all composites takes place in two steps. Degradation kinetic parameters were obtained for the composites using Broido (BR), Coats–Redfern (CR) and Horowitz-Metzger methods (HM). The damping property reduced after the incorporation of CSP filler. Morphology of the cryo-fractured composites was studied using scanning electron microscopic technique (SEM).

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