DING Qian, ZHANG Zishou, LUO Jianxin, et al. β-Nucleating effect of calcium pimelate-supported wollastonite filled polypropylene[J]. Acta Scientiarum Naturalium Universitatis SunYatseni, 2016,55(2):64-67.
DING Qian, ZHANG Zishou, LUO Jianxin, et al. β-Nucleating effect of calcium pimelate-supported wollastonite filled polypropylene[J]. Acta Scientiarum Naturalium Universitatis SunYatseni, 2016,55(2):64-67. DOI: 10.13471/j.cnki.acta.snus.2016.02.012.
In order to obtain wollastonite filled β-polypropylene composites
calcium pimelate-supported wollastonite (β-W) was prepared through the chemical reaction between wollastonite and pimelic acid
and the heterogeneous nucleating effect of wollastonite and β-W on PP crystallization was investigated. FTIR and TGA analyses confirmed the formation of calcium pimelate on the surface of wollastonite. The results of DSC
XRD and POM indicated that calcium pimelate formed on the surface of wollastonite
resulting in α→β transition of nucleation mechanism of wollastonite surface. The β-W filled PP composites mainly formed β-phase
and the β-nucleating ability of β-W was dependent of the mass ratio of wollastonite/pimelic acid.