Effects of nanoclay and coupling agent on the physico-mechanical, morphological, and thermal properties of wood flour/polypropylene composites

2010 ◽  
Vol 51 (2) ◽  
pp. 272-277 ◽  
Author(s):  
Hasan Ziaei Tabari ◽  
Amir Nourbakhsh ◽  
Alireza Ashori
2018 ◽  
Vol 32 (8) ◽  
pp. 1056-1067 ◽  
Author(s):  
Matheus Poletto

In this study, composites with interesting mechanical and thermal properties were prepared using chemically modified vegetable oil as coupling agent in wood-fibers-reinforced recycled polypropylene. Soybean oil was reacted with maleic anhydride to produce maleated soybean oil (MASO). The mechanical, thermal, and morphological properties of the composite were evaluated. The usage of MASO as a coupling agent clearly improved the interfacial adhesion between wood fibers and the polypropylene matrix and increased the mechanical and thermal properties evaluated. Based on the obtained results, it is concluded that MASO can act as an alternative source of coupling agent dispensing with the addition of petroleum-based compatibilizers to improve the mechanical and thermal properties of composites reinforced with natural fibers.


BioResources ◽  
2014 ◽  
Vol 9 (3) ◽  
Author(s):  
Brent H. Tisserat ◽  
Louis Reifschnedier ◽  
Juan Carlos López Núñez ◽  
Stephen R. Hughes ◽  
Gordon Selling ◽  
...  

Polymer Korea ◽  
2017 ◽  
Vol 41 (4) ◽  
pp. 599-609
Author(s):  
Minchul Lee ◽  
Yeongseon Kim ◽  
Hyunjun Ryu ◽  
Sung-Hyun Baeck ◽  
Sang Eun Shim

2013 ◽  
Vol 22 (6) ◽  
pp. 096369351302200
Author(s):  
Vinay Kumar ◽  
Manohar Singh Saini ◽  
Bikram Kishore Kanungo ◽  
Shishir Sinha

Abundantly available rice husk was used to reinforce polypropylene for the development of rice husk polypropylene composites (RHPP) by extrusion and compression molding techniques. Maleic anhydride polypropylene (MAPP) compatibilizer and titanate coupling agent were used to improve the adhesion between rice husk and polypropylene. Effect of fillers such as mica, talc, zirconium oxide, silica and calcium carbonate on thermal properties of RHPP composites was studied. Improvement in heat deflection temperature (HDT), degradation temperature of RHPP was observed but enthalpies of melting and degradation decreased by the addition of these fillers. No significant change in melting point of composites was noticed by the addition of these fillers. Composites thus prepared to have applications in building, automobile, and sport sectors.


2017 ◽  
Vol 51 (30) ◽  
pp. 4147-4155
Author(s):  
Nadir Ayrilmis ◽  
Türker Güleç ◽  
Emrah Peşman ◽  
Alperen Kaymakci

The effect of cotton dust as filler on the mechanical and thermal properties of polypropylene composites was investigated and the results were compared with the properties of wood plastic composites. Cotton dust was obtained from the dust filtration system located in a textile manufacturing unit. Different mixtures of cotton dust (30 to 60 wt%) or wood flour (30 to 60 wt%) were compounded with polypropylene with a coupling agent (maleic anhydride grafted polypropylene 3 wt%) in a twin-screw co-rotating extruder. The test specimens were produced by injection molding machine. The tensile strength and flexural modulus of the specimens improved with the increase in the filler content. There was no significant difference in the strength and modulus values between the cotton dust and wood flour filled composites. The highest thermal stability was found to be in the composites produced with 40 wt% of cotton dust according to the results of differential scanning calorimetry analysis. Based on the findings obtained from the present study, the optimum mechanical and thermal properties for the filled polypropylene composites were found to be a 50/50/3 formulation of cotton dust, polypropylene, and maleic anhydride grafted polypropylene, respectively.


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