scholarly journals Evaluation of uncertainty of measurement for cellulosic fiber and isotactic polypropylene composites subjected to tensile testing

2016 ◽  
Vol 7 (2) ◽  
pp. 70
Author(s):  
N. Mokaloba ◽  
R. Batane
Keyword(s):  
Isotactic Polypropylene ◽  
Tensile Testing ◽  
Uncertainty Of Measurement ◽  
Polypropylene Composites ◽  
Cellulosic Fiber

scholarly journals Tensile Properties of Polypropylene Filled with Nanoscale Calcium Carbonate Particles

2002 ◽  
Vol 11 (6) ◽  
pp. 096369350201100 ◽  
Author(s):  
Ming Qiu Zhang ◽  
Min Zhi Rong ◽  
Shun Long Pan ◽  
Klaus Friedrich
Keyword(s):  
Calcium Carbonate ◽  
Tensile Properties ◽  
Introduced Species ◽  
Tensile Testing ◽  
Filler Content ◽  
Polypropylene Composites ◽  
Matrix Polymer ◽  
Modification Effect ◽  
The Matrix ◽  
Positive Effect

To bring the positive effect of nanoscale calcium carbonate into play, macromolecular chains were introduced onto the particles by irradiation grafting polymerisation so that the hydrophobicity of the particles was increased and the loosen agglomerates became stronger. Tensile testing results demonstrated that polypropylene composites incorporated with the grafted nano-CaCO3 particles exhibited improved stiffness, strength and toughness at low filler content when proper grafting polymers are introduced. Species of grafting polymers adhered to the nanoparticles is an important factor affecting the modification effect of the matrix polymer. Therefore, composites performance can be purposely tailored accordingly.

Structure and Mechanical Behavior of Isotactic Polypropylene Composites Filled with Silver Nanoparticles

e-Polymers ◽  
2007 ◽  
Vol 7 (1) ◽  
Author(s):  
Sie Chin Tjong ◽  
Suping Bao
Keyword(s):  
Mechanical Behavior ◽  
Isotactic Polypropylene ◽  
Ag Nanoparticles ◽  
Screw Extruder ◽  
Additional Increase ◽  
Polypropylene Composites ◽  
Melt Compounding ◽  
Twin Screw ◽  
Izod Impact ◽  
The Impact

AbstractIsotactic polypropylene (PP) nanocomposites containing 0.1, 0.3, 0.5 and 1.0 wt % silver (Ag) nanoparticles were prepared via melt compounding in a twin-screw extruder followed by injection molding The effects of the Ag nanoparticle additions on the structure and mechanical behavior of PP were studied using DSC, WXRD, optical microscopy, tensile and Izod impact techniques. DSC and WXRD measurements showed that the addition of only 0.1 wt% Ag nanoparticles promote the formation of β-form PP. Further increasing Ag content would not lead to additional increase of the β-PP phase content. The induced β- form PP phase is beneficial to enhance the impact strength and tensile ductility of the PP/Ag nanocomposites.

Structure–property interface correlation of fly ash–isotactic polypropylene composites

2009 ◽  
Vol 44 (22) ◽  
pp. 6078-6089 ◽  
Author(s):  
Dilip Chandra Deb Nath ◽  
Sri Bandyopadhyay ◽  
Aibing Yu ◽  
Qinghua Zeng ◽  
Tapas Das ◽  
...  
Keyword(s):  
Fly Ash ◽  
Isotactic Polypropylene ◽  
Structure Property ◽  
Polypropylene Composites
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