Study on the Morphologies and Mechanical Properties of PP/EOC/SGF Composites with and without Compatilizers

2013 ◽  
Vol 331 ◽  
pp. 387-390
Author(s):  
Ji Nian Yang ◽  
Ai Qin Xu

The polypropylene/ethylene-1-octene/short glass fiber (PP/EOC/SGF) ternary composites were prepared by extrusion and subsequent injection processes. The effects of compatilizers, including maleic anhydride grafted PP (PP-g-MAH) and maleic anhydride grafted EOC (EOC-g-MAH), on the evolution of phase structures and mechanical properties of PP composites were examined. Results show that the interfacial adhesion between SGF and matrix are enhanced significantly. Moreover, the EOC-g-MAH promotes to form the elastomeric particle-embedded configuration. Mechanical testing reveals that the PP/EOC/SGF composites characterized by much higher impact toughness and keeping the competitively tensile properties could be obtained through co-incorporation of SGF and EOC as well as right compatilizers adopted.

2013 ◽  
Vol 668 ◽  
pp. 33-36 ◽  
Author(s):  
Ji Nian Yang ◽  
Ai Qin Xu

The short glass fiber (SGF)/polypropylene (PP) composites were prepared by extrusion and subsequently injection processes. The evolution of phase structures and mechanical properties of SGF/PP composites were performed using scanning electron microscopy (SEM), contact angle tensiometer, universal testing machine and impact tester. The results show that the interfacial adhesion between SGF and matrix were enhanced significant with the presence of maleic anhydride grafted PP (PP-g-MAH) and maleic anhydride grafted ethylene-1-octene copolymer (EOC-g-MAH). Moreover, the EOC-g-MAH promoted to form the novel configuration of EOC-g-MAH particles adhered firmly onto SGF surfaces, which resulted in the much higher impact toughness and tensile strength.


2013 ◽  
Vol 365-366 ◽  
pp. 1148-1151 ◽  
Author(s):  
Jia Horng Lin ◽  
Zheng Yan Lin ◽  
Jin Mao Chen ◽  
Chen Hung Huang ◽  
Ching Wen Lou

This study produces the far-infrared emitting composites by using impact-resistant polypropylene, short glass fibers, and far-infrared masterbatches. The addition of short glass fiber and far-infrared masterbatches is then evaluated to determine their influence on the mechanical properties and far-infrared emissivity of the resulting composites. The experimental results show that with an increase in the content of short glass fibers, the tensile strength increases from 34 MPa to 56 MPa, the far-infrared emissivity increases from 0.85 to 0.93, but the impact strength decreases from 1037 J/m to 197 J/m, proving that the resulting composites have desired mechanical properties and far-infrared emission.


2004 ◽  
Vol 856 ◽  
Author(s):  
Guralp Ozkoc ◽  
Goknur Bayram ◽  
Erdal Bayramli

ABSTRACTThe main objective of this study is to determine the effects of short glass fiber (SGF) content and extrusion conditions such as screw speed and barrel temperature, on the mechanical properties and morphologies of structural composites produced by compounding SGFs with poly (acrylonitrile-butadiene-styrene) (ABS). It was also aimed to determine the effects of adhesion at the fiber/matrix interface, which was promoted by incorporation of polyamide-6 (PA6) to the ABS/SGF composite. Results showed that increasing screw speed during extrusion decreased the average fiber length; therefore mechanical properties of the composites affected negatively. The increasing extrusion temperature decreased the fiber length degradation and higher tensile strength and modulus values were obtained. The use of PA6 in composites increased the interfacial adhesion, which was supported by SEM microphotographs; therefore, improved mechanical properties were obtained.


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