Mechanical and Thermal Properties of ABS/PVC Composites: Effect of Particles Size and Surface Treatment of Ground Calcium Carbonate

From our previous study, natural rubber (NR) was used to improve toughness of poly (lactic acid) (PLA). Impact strength and elongation at break of PLA was increased when adding NR. Moreover, by using NR-g-GMA as compatibilizer for PLA and NR blend, impact strength and elongation at break was improved. However, tensile strength and modulus of PLA/NR blend with and without NR-g-GMA were decreased. In this study, calcium carbonate (CaCO3) and vetiver grass fiber were used as fillers in PLA/NR blend. With the addition of CaCO3 into PLA/NR blend with NR-g-GMA, impact strength and modulus of the composite were further increased with a loss in tensile strength. In contrast, the addition of vetiver grass fiber into PLA/NR blend with NR-g-GMA led to an increase in tensile strength and modulus and a decrease in impact strength and elongation at break. The onset degradation temperatures of PLA composites were lower than that of PLA and PLA/NR blend.

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Effect of calcium carbonate on the mechanical and thermal properties of isotactic polypropylene/ethylene vinyl acetate blends

Journal of Applied Polymer Science ◽

10.1002/app.21555 ◽

2005 ◽

Vol 96 (4) ◽

pp. 1126-1137 ◽

Cited By ~ 12

Author(s):

Mustafa Öksüz ◽

Hüseyin Yıldırım

Keyword(s):

Thermal Properties ◽

Calcium Carbonate ◽

Vinyl Acetate ◽

Isotactic Polypropylene ◽

Ethylene Vinyl Acetate ◽

Mechanical And Thermal Properties

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Effects of Fiber Surface Treatment on Mechanical and Thermal Properties of Coir-MCC/Polylactic Acid Composites

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.488-489.638 ◽

2012 ◽

Vol 488-489 ◽

pp. 638-642 ◽

Cited By ~ 2

Author(s):

Tanawat Tayommai ◽

Duangdao Aht-Ong

Keyword(s):

Mechanical Properties ◽

Thermal Properties ◽

Surface Treatment ◽

Polylactic Acid ◽

Natural Fiber ◽

Fiber Surface ◽

Mechanical And Thermal Properties ◽

Coir Fibers ◽

Twin Screw ◽

Fiber Surface Treatment

Biodegradable plastic reinforced natural fiber composites are finding applications in many fields ranging from construction industry to food industry. The use of natural bio based fillers as reinforcements in composites has several advantages over inorganic fillers including lower density, renewability, and biodegradability. In this research, polylactic acid (PLA)/ microcrystalline cellulose (MCC) composites were investigated as a means to reduce the material cost and enhance the material properties. The coir fibers were used to prepare microcrystalline. Subsequently, the prepared MCC was treated with 3-amiopropyl triethoxysilane (APS) to improve interfacial adhesion between fiber and polymer matrix. Treated and untreated MCC were then mixed at 0-10 wt.% with PLA by twin-screw extruder and fabricated into test specimens by compression molding. The effects of MCC loading and surface treatment on morphology, mechanical properties, and thermal properties of PLA/MCC composites were investigated. The results showed that the PLA with 5 wt.% of MCC exhibited the best mechanical properties compared with all prepared composites. Thermal stability of PLA composites were decreased with increasing MCC content but it can be improved by treated the MCC with APS.

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