Boron Oxide on Mechanical and Degradation Property of Calcium Polyphosphate Fibers

doi:10.15541/jim20180188

Abstract

Abstract:

Calcium polyphosphate fibers (CPPF) were prepared by melt-drawing method. Effect of B₂O₃ with different mass fraction on degradation and mechanical properties of CPPF was studied. The obtained CPPF were characterized by Fourier transform infrared spectroscopy (FT-IR) and scanning electron microscopy (SEM). Results showed that tensile strength and modulus of CPPF were improved obviously with increase of mass fraction of B₂O₃. Moreover, the surface morphology of CPPF was influenced by the introducing of B₂O₃. In addition, the degradation ratio and cracks on the surface of CPPF decreased with increase of B₂O₃ content. Tensile strength and modulus of CPPF with B₂O₃ loading of 9% increased sharply by 146% and 153% compared to neat CPPF, respectively. After 16 d, the mass loss ratio of CPPF with B₂O₃ loading of 9% in the degradation process is reduced by 31% compared to the neat CPPF.

Key words: calcium polyphosphate fiber, B₂O₃, mechanical property, degradation property

CLC Number:

TQ174

QIANG Xiao-Hu, LI Bin-Bin, HUANG Da-Jian, ZHOU Song-Yi. Boron Oxide on Mechanical and Degradation Property of Calcium Polyphosphate Fibers[J]. Journal of Inorganic Materials, 2019, 34(2): 201-206.

Figures/Tables 8

Fig. 1 SEM images of CPPF with different content of B2O3(a) CPPF-0; (b) CPPF-1; (c) CPPF-5; (d) CPPF-9

Fig. 2 FT-IR spectra of CPPF with different content of B2O3

Fig. 3 Effect of B2O3 loadings on the mechanical properties of CPPF

Fig. 4 Degradation photographs of calcium polyphosphate fiber at different time

Fig. 5 XRD spectra of samples (A) and precipitation (B) after degradation

Fig. 6 Surface SEM images of CPPF with different loadings after degradation

Fig. 7 pH value in PBS for samples with different loading proportions after degradation for different periods

Fig. 8 Weight residual ratio of calcium polyphosphate fiber with various B2O3 loadings

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