The Reinforcement of Acicular Wollastonite on Polypropylene

Abstract:

The wollastonite/PP composites were manufactured by twin-screw extruder and the effects of compatabilizer, feeding method and screw configuration on the properties of wollastonite/PP composites were investigated in this paper. The dispersion of fibrous wollastonite in PP matrix was determined by scanning electron microscope (SEM). The results showed that the strength, toughness and flowability of the composite were simultaneously guaranteed by using three different types of PP resins, and the interfacial adhesion was improved greatly by adding the compatabilizer of PP-g-MAH, which increases the comprehensive properties of wollastonite/PP composite. The fibrous dispersion of wollastonite in PP matrix was achieved by using of side feeding and the weak-shear screw configuration, which reaches the good reinforcing effect.

• Periodical: Advanced Materials Research (Volume 92)
• Pages: 283-288
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.92.283
• Online since: January 2010
• Authors: Ming Shan Yang
• Keywords: Composite, Filling, Polypropylene (PP), Reinforcing, Wollastonite

References

[1] Y. W. Li, Y. L. Ouyang. The research developments of wollastonite modified plastics. Chinese J. of Glass Fiber Reinforced Plastics and Composites, 2008, (4): 45-48.

[2] Upinder Pal Singha, Bidyut Kumar Biswasb, Bidhan Chandra Rayb, Evaluation of mechanical properties of polypropylene filled with wollastonite and silicon rubber. Materials Science and Engineering A, 2009, 501: 94-98.

DOI: 10.1016/j.msea.2008.09.063

[3] A.S. Luyt, M.D. Dramicanin, Z Antic, V. Djokovic, Morphology, mechanical and thermal properties of composites of polypropylene and nanostructured wollastonite filler. Polymer Testing (2009), doi: 10. 1016/j. polymertesting. 2009. 01. 010.

DOI: 10.1016/j.polymertesting.2009.01.010

[4] G.D. Ransinchung, Brind Kumar, Veerendra Kumar. Assessment of water absorption and chloride ion penetration of pavement quality concrete admixed with wollastonite and microsilica. Construction and Building Materials, 2009, 23: 1168-1177.

DOI: 10.1016/j.conbuildmat.2008.06.011

[5] V. Cecen, A. Boudenne, L. Ibos, I. Novák, Z. Nógellová, J. Prokeš, I. Krupa. Electrical, mechanical and adhesive properties of ethylene-vinyl acetate copolymer (EVA) filled with wollastonite fibers coated by silver. European Polymer Journal, 2008, 44: 3827-3834.

DOI: 10.1016/j.eurpolymj.2008.07.053

[6] Caner Yilmaz, Turan Korkmaz. The reinforcement effect of nano and microfillers on fracture toughness of two provisional resin materials. Materials and Design, 2007, 28: 2063-(2070).

DOI: 10.1016/j.matdes.2006.05.029

[7] J.A. Juhasz, S.M. Best, R. Brooks, M. Kawashita, N. Miyata, T. Kokubo, T. Nakamura, W. Bonfield. Mechanical properties of glass-ceramic A-W-polyethylene composites: effect of filler content and particle size. Biomaterials, 2004, 25: 949-955.

DOI: 10.1016/j.biomaterials.2003.07.005

[8] K. Hanumantha Rao, K.S.E. Forssberg, W. Forsling. Interfacial interactions and mechanical properties of mineral filled polymer composites: wollastonite in PMMA polymer matrix. Colloid and Surface A: Physicochemical and Engineering Aspects, 1998, 133: 107-117.

DOI: 10.1016/s0927-7757(97)00130-1

[9] M. S. Yang. Modification and formulations of Polypropylene. Beijing：Chinese Chemical Industry Press，(2009).