Soil Specific Surface Area and Non-Singularity of Soil-Water Retention at Low Saturations

PFI mill was used to prepare PBO fibrils from PBO fiber. With the help of the observation of SEM and the measure of water retention value as well as the analysis of specific surface area, it was found that the milling parameters, including the beating rotation number, beating spacing, beating pressure and beating concentration, influenced the fibrillation of PBO fiber. The processing parameters were studied. The optimal milling conditions were obtained: beating rotation number of 40000-50000r, spacing of 2.4mm, pressure of 4.89N/mm, and concentration of 7.5%. The prepared PBO fibrillar fiber has high specific surface area of 5.001m2/g, while the original PBO fiber has only a specific surface area of 0.476m2/g.

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Theoretical and experimental substantiation of a thermogravimetric method for assessing the water-retention capacity and specific surface area of disperse systems

Eurasian Soil Science ◽

10.1134/s1064229316100136 ◽

2016 ◽

Vol 49 (12) ◽

pp. 1382-1391 ◽

Cited By ~ 4

Author(s):

A. V. Smagin ◽

N. B. Sadovnikova ◽

A. S. Bashina ◽

A. V. Kirichenko ◽

V. G. Vityazev

Keyword(s):

Specific Surface ◽

Surface Area ◽

Specific Surface Area ◽

Water Retention ◽

Water Retention Capacity ◽

Disperse Systems ◽

Thermogravimetric Method ◽

Retention Capacity ◽

Experimental Substantiation

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Relationship between specific surface area and the dry end of the water retention curve for soils with varying clay and organic carbon contents

Water Resources Research ◽

10.1029/2010wr010229 ◽

2011 ◽

Vol 47 (6) ◽

Cited By ~ 49

Author(s):

Augustus C. Resurreccion ◽

Per Moldrup ◽

Markus Tuller ◽

T. P. A. Ferré ◽

Ken Kawamoto ◽

...

Keyword(s):

Organic Carbon ◽

Specific Surface ◽

Surface Area ◽

Specific Surface Area ◽

Water Retention ◽

Water Retention Curve ◽

Retention Curve

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Modification of Cellulase to Different Bleached Softwood Pulp

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.550-553.1186 ◽

2012 ◽

Vol 550-553 ◽

pp. 1186-1189

Author(s):

Min Du ◽

Xin Ping Li ◽

Jin Wang ◽

Peng Zhou Wang

Keyword(s):

Specific Surface ◽

Surface Area ◽

Specific Surface Area ◽

Water Retention ◽

Raw Material ◽

Enzymatic Modification ◽

Water Retention Value ◽

Wetting Properties ◽

Before And After ◽

Wetting Property

Cellulase named as Novozym 476 was used to modify three kinds of bleached softwood pulps respectively. By analyzing the changes of refining degree, water retention value, specific surface area, wetting properties of fiber before and after enzymatic treatment, studied the influence of characteristics of raw material to the effect of enzymatic modification. The results indicate that in the same conditions, the refining property, water retention value, specific surface area and wetting property of the three pulps all increase. Among these three pulps, the pulp of Kamloops Kraft has the best modification effect. Refining degree of Kamloops Kraft pulp increases 36.0 °SR when refining for 10,000 PFI revolutions, and the water retention value increases by 68.0%, the dye loading increases with 0.1 mg/g, the contact angle decreases by 4.5%. It illustrates that the fiber raw material with a thin cell wall would have a better effect of enzymatic modification and the wrapping way of microfibers would influence the effect of enzymatic modification.

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