Effect of Modified Diatomite on Crystallinity and Mechanical Properties of Polypropylene

Abstract:

The different coupling agent is used for diatomite modification. The diatomite with different content are melt and mixed with polypropylene to prepare diatomite/polypropylene composites. The modification effects of different coupling agent on diatomite and the influence of agent and diatomite contents on crystallization behavior of polypropylene and mechanical properties of composites are investigated. The results show that different coupling agents have the modification effects on diatomite influence crystallization of polypropylene but the aluminum agent is better than other agents. With the increase of the content of aluminum acid ester coupling agent, the size of bubble pore is uniform, and then the compressive strength reaches to a maximum when aluminum acid ester coupling agent content is 1%. With the increase of the content of diatomite, the porosity of bubble pore of diatomite/polypropylene composite material is gradually increases. The crystallinity of polypropylene and yield strength reach to a maximum (48.15% and 21.5%) when diatomite content is 30%. In addition, the diatomite/polypropylene composites have better compressive strength than the others.

• Periodical: Materials Science Forum (Volume 913)
• Pages: 551-557
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.913.551
• Online since: February 2018
• Authors: Yu Zhao*, Ming Du, Ke Xin Zhang, Liang Gao
• Keywords: Coupling Agent, Crystallinity, Diatomite, Mechanical Properties, Polypropylene

References

[1] Zhu Y D, Allen G C, Jones P G, et al. Dispersion characterization of CaCO3 particles in PP/CaCO3 composites, J. Composites Part A: Applied Science and Manufacturing. 60(2014) 38-43.

DOI: 10.1016/j.compositesa.2014.01.012

[2] Akin S, Schembre J M, Bhat S K, et al. Spontaneous imbibition characteristics of diatomite, J. Journal of Petroleum Science & Engineering. 25(3-4) (2000) 149-165.

DOI: 10.1016/s0920-4105(00)00010-3

[3] Guo Q, Li L, Cheng Y, et al. Laboratory evaluation on performance of diatomite and glass fiber compound modified asphalt mixture, J. Materials & Design, 66 (2015) 51-59.

DOI: 10.1016/j.matdes.2014.10.033

[4] Liu M L, Han G Z, Liu Y L, et al. The influence of diatomite types and compatibilizer content on properties of diatomite-wood flour/polypropylene composites, J. Applied Mechanics and Materials. 448 (2014) 1363-1368.

DOI: 10.4028/www.scientific.net/amm.448-453.1363

[5] Wang H, Zhu M, Li Y, et al. Mechanical properties of dental resin composites by co-filling diatomite and nanosized silica particles, J. Materials Science and Engineering C. 31(3) (2011) 600-605.

DOI: 10.1016/j.msec.2010.11.023

[6] Akatsuka M, Takezawa Y, Amagi S. Influences of inorganic fillers on curing reactions of epoxy resins initiated with a boron trifluoride amine complex, J. Polymer. 42(7) (2001) 3003-3007.

DOI: 10.1016/s0032-3861(00)00669-8

[7] Liang J Z, Zhu Z H. The influence effects of the content and particles diameter of diatomite on the fluidity of polypropylene composites J. Plastics science and technology. 34(1) (2006) 12-14.

[8] Wang G H, Yang S L, Chen Y M, Yao T, He Y C, Zhu H X. Research in performance of diatomite filled rigid polyurethane foams, J. Polyurethane industry. 27(5) (2012) 5-9.

[9] Taniike T, Toyonaga M, Terano M. Polypropylene-grafted nanoparticles as a promising strategy for boosting physical properties of polypropylene-based nanocomposites, J. Polymer. 55(4) (2014) 1012-1019.

DOI: 10.1016/j.polymer.2014.01.016

[10] Hu R, Wang X, Dai S, et al. Application of graphitic carbon nitride for the removal of Pb (II) and aniline from aqueous solutions, J. Chemical Engineering Journal. 260(3) (2015) 469-477.

DOI: 10.1016/j.cej.2014.09.013

[11] Zhang Y S，He X F. Research progress of the crystallizati0n of polypropylene modified by in organic filler, J. Plastic packaging. 22(4) (2012) 29-34.

[12] Zhang J, Huang X, Wei H, et al. Effect of surface modified porous inorganic-organic hybrid polyphosphazene nanotubes on the properties of polyethylene oxide based solid polymer electrolytes, J. Electrochimica Acta. 55(20) (2010) 5966-5974.

DOI: 10.1016/j.electacta.2010.05.051