Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Elongation uniform

AMPERE PER METER (A/m). The magnetic field strength in the interior of an elongated uniformly wound solenoid which is excited with c, linear current, density m its winding of 1 ampere per meter of axial distance. (The SI unit of magnetic field strength.)... [Pg.1643]

Samples of narrow molecular weight distribution elongated uniformly and finally ruptured abruptly a type of behavior that has been observed in low-density polyethylene... [Pg.162]

The mechanical input in the flow-induced scission method can be an elongation (uniform) or a turbulent (non-uniform) field. For instance. [Pg.379]

Figure 3.26 presents a comparison of three yarn types with regard to yarn uniformity, twist level, and yarn structure. Table 3.2 shows a comparison of the three most important spinning principles in various characteristics both direct (tenacity, elongation, uniformity, and so on) and indirect (tensile force) parameters were chosen. [Pg.120]

Content of Ot-Olefin. An increase in the a-olefin content of a copolymer results in a decrease of both crystallinity and density, accompanied by a significant reduction of the polymer mechanical modulus (stiffness). Eor example, the modulus values of ethylene—1-butene copolymers with a nonuniform compositional distribution decrease as shown in Table 2 (6). A similar dependence exists for ethylene—1-octene copolymers with uniform branching distribution (7), even though all such materials are, in general, much more elastic (see Table 2). An increase in the a-olefin content in the copolymers also results in a decrease of their tensile strength but a small increase in the elongation at break (8). These two dependencies, however, are not as pronounced as that for the resin modulus. [Pg.396]

Styrene—butadiene—styrene modified bitumen is an elastomeric material mixed into an asphalt between 10 and 15%. By using high energy mixing, the SBS is uniformly dispersed throughout the asphalt to form a network, referred to as phase reversal because the minor component s (SBS) physical properties are displayed by the final mixture. A properly formulated SBS asphalt blend has an elongation of 100% or greater and is flexible down to temperatures below —6°C. [Pg.321]

Corrosion effect of forming Elongation X gauge length Standard hydropress specimen test True stress-strain curve Uniformity of characteristics... [Pg.24]

Strong elongational deformation and use of matrix polymers whose viscosity is higher than that of TLCP phase are better to ensure uniform and fine fibril formation. But application of compatibilizing techniques to in situ composite preparation can be useful to get the most desirable products. These can reduce the high costs of the liquid crystalline polymers and expensive special engineering plastics used for the in situ composite preparation and reduce the processing cost, whereas they can increase the performance of produced in situ composites, hence, their applications, too. [Pg.599]

Poison s ratio It is the proportion of lateral strain to longitudinal strain under conditions of uniform longitudinal stress within the proportional or elastic limit. When the material s deformation is within the elastic range it results in a lateral to longitudinal strain that will always be constant. In mathematical terms, Poisson s ratio is the diameter of the test specimen before and after elongation divided by the length of the specimen before and after elongation. Poisson s ratio will have more than one value if the material is not isotropic... [Pg.50]

Under steady-state conditions, as in the Couette flow, the strain rate is constant over the reaction volume for a long period of time (several hours) and the system of Eq. (87) could be solved exactly with the matrix technique developed by Basedow et al. [153], Transient elongational flow, on the other hand, has two distinctive features, i.e. a short residence time (a few ps) and a non-uniform flow field, which must be incorporated into the kinetics equations. In transient elongational flow, each rate constant is a strongfunction of the strain-rate which varies with time in the Lagrangian frame moving with the center of mass of the macromolecule the local value of the strain rate for each spatial coordinate must be known before Eq. (87) can be solved. [Pg.140]

Tensile and Elongation. Samples of the belt wedge mbber, located between belts 1 and 2, were removed from both shoulders (serial side and opposite serial side) and buffed to a uniform thickness of 0.5-1.0 mm. Care was taken so that no signihcant heat was introduced to the samples by the buffing. Specimens were die-cut using an ASTM D 638 Type V dumbbell die and tested per ASTM D 412. Results obtained included modulus values at 100%, ultimate elongation, and tensile strength. Samples were tested at 20"/min (50.8 cm/min). [Pg.956]


See other pages where Elongation uniform is mentioned: [Pg.382]    [Pg.156]    [Pg.231]    [Pg.75]    [Pg.389]    [Pg.129]    [Pg.382]    [Pg.156]    [Pg.231]    [Pg.75]    [Pg.389]    [Pg.129]    [Pg.30]    [Pg.339]    [Pg.296]    [Pg.425]    [Pg.253]    [Pg.317]    [Pg.504]    [Pg.391]    [Pg.519]    [Pg.296]    [Pg.311]    [Pg.970]    [Pg.108]    [Pg.489]    [Pg.296]    [Pg.618]    [Pg.369]    [Pg.597]    [Pg.528]    [Pg.530]    [Pg.1066]    [Pg.611]    [Pg.15]    [Pg.77]    [Pg.498]    [Pg.126]    [Pg.186]    [Pg.795]    [Pg.958]    [Pg.94]    [Pg.243]    [Pg.291]    [Pg.101]    [Pg.472]   
See also in sourсe #XX -- [ Pg.231 ]




SEARCH



© 2024 chempedia.info