Studies on Solide State Shear Compounding Technology & Preparation and Properties of the Electric and Thermal Conductive Polypropylene/Graphite Nanocomposites
80% recovery of apparent viscosity is observed in 60 min and 85%—in 10 hrs of standing of the MJ2 and DQ/AP-P5 MS/PSs having been sheared at stirring speed 11000 r/min in 0.5 min.
For AP4 solutions of concentration 800 and 1000 mg/L,having been sheared at 45℃ and different shear rates 200—1550 s~(-1) in 2 minutes,the viscosity retention is of 30—20%,the viscosity recovery on standing is of 80—130% and the recovery is incomplete(<100%) at lower shear rates;
The viscosity recovery accounts 94.5% (at 95℃) and 70.0% (at 135℃) of the initial values when shearing at lower rate, 80 s-1, after having been sheared at high rate, 500 s-1;
The GS losses 87-89% its viscosity after having sheared in 15 min at 3000 r/min however the gel formed at 90℃ from this GS gains 70-85% of gel viscosity for the unsheared GS.
through the analysis of actual measured data, length error is not in excess of allowable error of ±2mm,±4mm within 2～6m,7～10m sheared steel plate length,and the demand of control accuracy is satisfied.
In this paper, the boundary stabilization of the Timoshenko equation of a nonuniform beam, with clamped boundary condition at one end and with bending moment and shear force controls at the other end, is considered.
An important conclusion of wood for musical instruments with proper anisotropy, fine toughness, and weak shear of longitudinal and radial vibration was inducted.
Shear difference of both undisturbed and remolded soils was compared at the same vertical loading, under the condition of the same dry density and water content from the same forest land.
Numerical results of the lubrication show that the differential viscosity is the principal non-Newtonian property affecting the lubrication, it is determined by the material parameters of the lubricant and is affected by the shearing rate.
Considering the effects of bending-shearing strain and tensile-compression strain, the dynamic stress of the links and its position are derived by using the Kineto-Elastodynamics theory and the Timoshenko beam theory.
During the high-temperature wear period, severely influenced by friction heat, obvious softening and plastic flow can be found on the friction surface of the brake block, its anti-shearing ability is weakened, and adhesive wear is intensified.
In this method, the pre-dispersed nano-particle suspensions are blended with melting polymers in a weak shearing field using an extruder, followed by removing the water from the vent.
A significant error will be introduced in the calculation when the artificial horizontal rock surface is assumed in the soil layer according to the shear velocity of the soil media.
The consolidation degree, excess pore water pressure, vertical total stress, and the shear stress of the consolidating layer are analyzed in this study.
In this case, the mixture area consists of abrasive dust from friction pairs, and the surface film is distributed with crumby hard granules, exiguous oxide, carbide granules and sheared slender fibre.
剪切
shear
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