Tensile elongation percent

The following polymer characteristics were obtained on the variously irradiated test specimens melt index (ASTM 1238-62T), Vicat softening temperature (modified ASTM 1525-58T) heat distortion (ASTM D 1220-63T) physical strength yield strength ultimate tensile strength percent elongation at break (ASTM D 412-64T) chemical resistance to boiling toluene. 

Composites of polypyrrole and poly(vinyl chloride) have been prepared by several groups (64-67). Polythiophene-poly(vinyl chloride) composites have also been prepared (68). The electropolymerization of pyrrole on poly(vinyl chloride)-coated electrodes yielded composites with mechanical properties (tensile strength, percent elongation at break, percent elongation at yield) similar to poly(vinyl chloride) (65) but with a conductivity of 5-50 S/cm, which is only slightly inferior to polypyrrole (30-60 S/cm) prepared under similar conditions. In addition, the environmental stability was enhanced. Morphological studies (69) showed that the polypyrrole was not uniformly distributed in the film and had polypyrrole-rich layers next to the electrode. Similarly, poly(vinyl alcohol) (70) poly[(vinylidine chloride)-co-(trifluoroethylene)] (69) and brominated poly(vinyl carbazole) (71) have been used as the matrix polymers. The chemical polymerization of pyrrole in a poly(vinyl alcohol) matrix by ferric chloride and potassium ferricyanide also yielded conducting composites with conductivities of 10 S/cm (72-74). 

Figure 3-57. Tensile Elongation vs Percent Fiberglass Reinforcement, Nylon 6/6 (Ref. 22)...

Specific Durometer Tensile Elongation, gravity shore strength, psi percent ASTM ASTM ASTM ASTM D-792 D-2240 D-412 D-412 Modulus ASTM D-412 psi % ... 

TEEEs combine flexural fatigue strength, low-temperature flexibility, good apparent modulus (creep resistance), DTUL and heat resistance, resistance to hydrolysis, and good chemical resistance to nonpolar solvents at elevated temperatures. A tensile siress/percent elongation curve reveals an initial narrow linear region. COPEs are attacked by polar solvents at elevated temperatures. The copolymers can be completely soluble in meta-cresol, which can be used for dilute solution polymer analysis. ... 

Fluids Immersion Conditions Durometer. Points Change Tensile Strength, Percent Chenge Elongation. Percent Change Volume Swell, Percent Change... 

Styrene acrylonitrile copolymers can be rendered to be antistatic by adding a copolymer composed from epichlorohydrin and ethylene oxide and PMMA (7). The mixture is compounded in a Banbury mixer and then injection molded at 220°C. The surface resistivity, the percent of tensile elongation and the electrostatic dissipative rate from 5 kV to 0 V at 15 and 50% relative humidity have been measured. The results are given Table 9.2. 

Note ACI318 requires that the anchor material in a ductile anchor have an elongation of at least 14 percent and a reduction of area of at least 30 percent during a tensile elongation test. See Table 2.1 for guidance on ductile material selection. For a discussion of ductility ofpost-installed anchors, see 4.5.3. 

Tensile strength Percent elongation Hardness, shore A... 

Heat-treatment 2000-2050°F water-quenched to room temperature Yield strength (measured) 38,700 psi Tensile strength (measured) 76,400 psi Elongation percent (2 in,) 39%... 

Material Yield Strength (MPa) Ultimate Tensile Strength (MPa) Elongation (Percent) Tensile Toughness (J/cm )... 

Material/Property Aging Yield strength (MPa) Tensile strength (MPa) Elongation (percent) ... 

Material Percent neutralized Melt index at 190°C, dg/min Secant modulus, % extension, MPa Ultimate tensile strength, MPa Elongation at break, %... 

Figure 10 (a) Percent elongation at break (Cb), and (b) tensile strength (o-b) versus irradiation time for polystyrene films O-control -2,4-DHBP -2H-4MBP -2H-4BBP X-DHBP-F A-HMBP-F and Q-HBBP-F. 

Anorin-38 has also shown an interesting effect as a multifunctional additive (a single additive to replace many of the conventional additives) for natural rubber (NR). It showed excellent blending behavior and compatibility with NR. Aorin-38 enhances the tensile properties and percent elongation, decreases fatigue, acts as an antioxidant and antiozonant, and positively affects many of the other properties, apart from acting as a process aid and a cure enhancer [183-186]. 

Percent of graft copolymer Stress at 50% elongation (N/mm) Stress at 100% elongation (N/mm) Stress at 130% elongation (N/mm) Tensile strength (N/mm ) Elongation at break (%)... 

The presence of a few atomic percent of oxygen in tantalum increases electrical resistivity, hardness, tensile strength, and modulus of elasticity, but decreases elongation and reduction of area, magnetic susceptibility, and corrosion resistance to HF . 

Dielectric constant and dissipation factor measurements were conducted according to the procedures of ASTM D-150-87. Tensile strength and modulus and percent elongation were measured on an Instron model 1125 according to the procedures of ASTM-D-882-83. 

Physical characterization of polymers is a common activity that research and development technologists at the Dow Chemical Company perform. A material property evaluation that is critical for most polymer systems is a tensile test. Many instruments such as an Instron test frame can perform a tensile test and, by using specialized software, can acquire and process data. Use of an extensometer eliminates calibration errors and allows the console to display strain and deformation in engineering units. Some common results from a tensile test are modulus, percent elongation, stress at break, and strain at yield. These data are then used to better understand the capabilities of the polymer system and in what end-use applications it may be used. 

---