Tensile test of polymers

Experiment 58 Tensile Testing of Polymers Using a Homemade Tester ... 

Stiffness-Temperature - One simple tensile test of polymers involves the measurement of a modulus as a function of temperature. Figure 5 illustrates the characteristics of such a measurement. 

Atomic force microscope Polymer adsorption onto the nanocrystals [50] In situ tensile testing of polymer fibers [36]... 

G Sell, C., Hiver, J. M., Dahoun, A., and Souahi, A. (1992) Video-controlled tensile testing of polymers and metals beyond the necking point, J. Mater. Sci., 27, 5031-5039. 

In Fig. 24.6 we show several types of behavior seen in tensile testing of polymers. For performing a specific test, consult one of the standards listed in Table 24.2. 

Figure 23.3 Tensile testing of polymers showing key properties.

Chapter 8 Curved Interface Tensile Test of Polymer-Polymer Joints... 

Zankel, A., Poelt, R, Gahleitner, M., IngoUc, E., Grein, C. Tensile tests of polymers at low temperatures in the environmental scanning electron microscope an improved cooling platform. Scanning 29, 261-269 (2007)... 

C. G Sell, J. M. Hiver, A. Dahouin, and A. Souahi, Video-Controlled Tensile Testing of Polymers and Metals beyond the Necking Point , J. Mater. Sci. 27,5031-5039 (1992). 

Figure 15.2 Tensile testing instrumentation. Polymer samples are stretched under controlled conditions and the tensile properties are evaluated. (Courtesy of Du Pont)...

All these tests are in common use to measure the tensile stiffness of polymers. For example, tests at constant extension rate are often carried out on an Instron tensile testing machine. Tensile creep is used in many cases while stress relaxation is not so common. Dynamic testing is commonly performed using the Rheovibron or other commercial equipment32 or home made equipment33,... 

Besides crystallinity itself, the kind and amount of side chains is of importance for crazing. A schematic investigation of the influence of chain branches was performed in PE that were introduced via copolymerization [84], A long-chain branched low-density polyethylene (PE-LD) was compared to a linear low-density polyethylene (PE-LLD) with different short chains [85]. Type and concentration of the copolymers were chosen in order to attain the same density of 0.920 g/cm3 and melt flow rate of 25 g/10 min for all polymers. The ESC resistance was measured in a long-term tensile test of notched specimens at 50 °C in 10% Igepal solution. 

Using tensile testing of free films, researchers have shown that plasticizer type and concentration influence the mechanical properties of both acrylic and cellulosic polymers. ° Fig. 10 shows the influence of dibutyl sebacate concentration on the tensile properties of free ethyl cellulose films. ° As the concentration of the... 

Table 12.1. Standard test methods for the determination of the tensile properties of polymer s...

The preceding brief summary of the important principles that need to be considered in tensile testing fiber polymers and filaments will we hope be useful to the reader in looking at the detail of the following standard methods of test. 

Method of test for tensile strength of polymer-modified mortar ... 

Ultimate tensile strength, stifihess, and strain-to-failure were determined quasi-statically for each class of as-received material in accordance with ASTM D 3039 Standard Test Method for Tensile Properties of Polymer Matrix Composite Materials using a deflection rate of 2.5 mm/min (0.10 in./min). A total of thirty samples were tested, ten of each material type. In addition, two samples of each material were set aside for crack density analysis using x-ray and optical microscopy techniques. 

Tensile testing of single crystalline metallic microwhiskers can also be studied following the experimental tensile testing constructed by Brenner and (b) results of whisker fracture strength as a function of whisker size, showed the clear size dependence (Fig. 3.34). The chitin whiskers are usually incorporated into polymer matrix to prepare CWs reinforced polymer nanocomposite. Thus, the mechanical... 

These considerations apply to the simple tensile test of film adhesion shown in Fig. 14.18(a), which illustrates a thin polymer film adhering to a thicker polymer sheet The edge of the film is lifted up before the test to ensure that a long starter aack is in position. When the sheet was stretched elastically, the... 

Cyclic, Thermomechanical Tensile Tests of Dual-Shape Polymers. 118... 

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