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- W2355124795 abstract "Walnut shell granules of size 20—40 mesh were impregnated with a phenolic resin in ethanol solution and cured at 180℃ to give impregnated granules containing 20% resin;the laters were coated with the resin and cured to form coated granules of resin content 25%,30%,and 35%.These resinified granules had bulk density 0.86—0.87 g/cm3 and true density 1.23—1.25 g/cm3 and their size distribution was mainly between 20—40 mesh.Microscopic observations showed that some pore remained on the surfaces of impregnated granules and the resin coated surfaces became even and smooth.For the impregnated/coated granules in comparison with the original granules,the water absorption at 60℃ lowered from about 30% to about 17% and was affected slightly by resin content;the precent compressebility at close pressure 30 MPa lowered from 7.2% to about 1.4% in dry state and from 25.7% to about 3% in wet state and at close pressure 60 MPa —form 18.0% to about 10% in dry state and from 33.6% to about 15% in wet state while the effect of resin content on the percent compressibility was slight,too.The conductivity of the resinified ganules was measured at a close pressure in range 10—60 MPa,being raised from 41.8 to 113.4 μm2·cm at 60 MPa when the resin content was increased from 20% to 35%." @default.
- W2355124795 created "2016-06-24" @default.
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- W2355124795 date "2009-01-01" @default.
- W2355124795 modified "2023-09-23" @default.
- W2355124795 title "Preparation of Resinified Granulated Walnut Shell as Fracturing Proppant of Ultralow Density" @default.
- W2355124795 hasPublicationYear "2009" @default.
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