Mechanical destruction

Both effects resulting from solvent cointercalation, the mechanical destruction and the higher irreversible specific charge losses, seriously complicate the operation... 

Sohma, J. and Sakaguchi, M. ESR Studies on Polymer Radicals Produced by Mechanical Destruction and Their Reactivity. Vol. 20, pp. 109 — 158. 

Toys can be made of plastics that will resist mechanical destruction even though some people consider all toys immediately destructible. ... 

Erosion Erosion of metal is the mechanical destruction of a metal by abrasion or attrition caused by the flow of liquid or gas (with or without suspended solids) in no manner is this metal loss an electrochemical corrosion mechanism (see Velocity Accelerated... 

Chicouene D (2009) Mechanical destruction of weeds. A review. In Lichtfouse E, Navarrete M, Debaeke P, Souchere V, Alberola C (eds) Sustainable agriculture. Springer, pp 399-410. DOI 10.1007/978-90-481-2666-8 26... 

Mathematical Modelling of Thermo-Mechanical Destruction of Polypropylene... 

Keywords Thermo-mechanical destruction, polypropylene, molecular mass, effective viscosity. 

Each criterion obtained from the given expressions represents a concept of one of the interrelated consequences of thermo-mechanical destruction process decrease in molecular weight, the number of macromolecular breakdowns, and the approach to the possible level of macromolecular destructions. The merit of the criteria is that their values do not depend on the initial molecular weight [1-3],... 

Paper 20 dwells on the ideas allowing us to advance in the quantitative assessment of thermo-mechanic destruction degree. 

Taking these data as a basis we can propose an expression for calculating the degree of thermo-mechanic destruction in the form of ... 

Here is proposed the criterion for the rate of thermo-mechanical destruction in the polymeric system TV ... 

This relation is helpful because it provides an opportunity for the quantitative assessment of polymer thermo-mechanical destruction rate in dependence with the thermo-mechanical impact regime during processing. 

Keywords polypropylene, mechanical destruction, oxidation rate, hydroperoxides. 

The research on the processes of mechanical destruction in deformed polypropylene (PP) melts was conducted with the aid of stable radical (tripentachlorphenylmethyl) consumption. There was defined the dependence of radical generation rate on shear rate. At low values y it is approximate to linear. 

At the initial period of mechanical destruction in a polypropylene melt in inert atmosphere the concentration of macromolecules increases (figure 2). The dependence of destruction rate (V ) on temperature is linear in the Arrhenius coordinates. After a certain... 

The Research on the Process of Thermo-Mechanical Destruction in Polypropylene 169... 

Kamba M, Seta Y, Kusai A, Nishimura K. Comparison of the mechanical destructive force in the small intestine of dog and human. Int J Pharm 2002 237 139-149. 

Mechanical destruction of cells, as it occurs as a result of a trauma, is the most unspecific way of histamine release. Another important mechanism are allergic reactions. The triggering reaction is the binding of an antigen at immunoglobulin E (IgE) antibodies present at the surface of mast cells. A series of reactions, one of which is a calcium influx, leads... 

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