The use of omec particle size analyzer (LS-POPIV) size of the test material, Holland 'panalytical production company X Pert type PRO X - ray diffraction phase analysis of samples, the Japanese JSM-6380LV scanning electron microscope (SEM) on the surface morphology of the samples were microscope observation.
According to the national standard GB/T3810.3 - 1999 test water absorption of ceramic proppant rate (W), press (a) formula.
w = (m1-m0)/m0 ×100% （a）
M0, M1 as the quality of samples when dry and immersion after saturation
the unit is g.
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