Thermo-mechanical

Functional groups Glassing point temperature (Tg) K Thermo- mechanic analysis (TMK), K... 

Ljungberg, N. and Wesslen, B. 2003. Tributyl citrate oligomers as plasticizers for polyjlactic add) Thermo-mechanical film properties and aging. Polymer 44 7679-7688. 

Meyer, M., Muhlbach, R., and Harzer, D. (2005). Solubilisation of cattle hide collagen by thermo-mechanical treatment. Polym. Degrad. Stab. 87,137-142. 

Pulp manufacture by stone groundwood, mechanical refiner, thermo-mechanical, chemi-mechanical, or chemi-thermomechanical means for newsprint, coarse papers, tissue, molded fiber products, and fine papers... 

Smirnova and coworkers studied the influence of various types of ionizing radiations on the physiomechanical characteristics of a statistical polymer of butadiene and acrylonitrile137. Although the polymer is a statistical polymer, the nature of its thermo-mechanical curve indicates a block nature of the polymeric basis of the rubber there is a... 

Thermo-mechanical Analysis (TMA) and Dynamic Mechanical Analysis (DMA)... 

Blattellaquinone, 27 259 Bleach activator, ethyleneamines application, 8 500t, 504-505 Bleach boosting, 70 304-305 Bleached board products, 78 130 Bleached chemo-thermo mechanical pulp (BCTMP), 74 57 Bleached montan wax, 9 677 Bleaches. See also Bleaching... 

Chapter 10 - There has been investigated the effect of thermo-mechanical impact conditions on destruction kinetics in polypropylene melts. The conditions served as a basis for obtaining quantitative dependencies and mathematical expressions aimed at describing destruction processes. 

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 ... 

The direct application of this expression in order to estimate the degree of thermomechanic destruction in connection with polymer processing is hindered because the process rate constant depends on the temperature and intensity of thermo-mechanical impact on a material. Consequently, of significant interest is the issue of selecting an attribute for characterizing the degree of destruction. Most researchers consider it worthwhile to simply use viscosity variable (r a) or characteristic viscosity variable. 

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. 

Comparing the values of obtained at testing PP samples processed under various technological regimes and calculated with the aid of a mathematical model allows us to propose applying the criterion to the estimation of physical and chemical transformations occurring in a polymer at modifying the parameters of thermo-mechanical impact. 

Figure 2. The kinetics of changes in the concentration of PP macromolecules at thermo-mechanical impact 1-...

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

Vol. 11 Thermo-Mechanical Processing of Metallic Materials by B. Verlinden,... 

A representative sample of many of the polyimide films that were produced were subjected to thermo-mechanical analysis (TMA), torsional braid analysis (TBA), thermal gravimetric analysis (TGA), infrared spectral analysis and weight loss on prolonged heating (e.g. isothermal studies), TABLE II. The softening temperature as measured by TMA and TBA are in general... 

Good thermo-mechanical and electrical properties rigidity impact strength fatigue endurance heat behaviour with continuous use temperatures from -196°C up to +220°C tribological properties for suitable grades. 

Good thermo-mechanical, chemical and electrical properties rigidity gamma irradiation resistance UHF transparency good creep resistance and fatigue behaviour low moisture uptake low shrinkage heat behaviour fire resistance low coefficient of thermal expansion. 

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