Search Results for polycarbonate

Fig. 1 Activation spectra of 760 μm (30 mil) polycarbonate source using 6000 W xenon weatherometer with borosilicate filters plus short-wavelength cutoff filters. Source: Ref 2 More

Fig. 5 Stress-strain curves for rubber-modified polycarbonate at room temperature as a function of strain rate More

Fig. 4 Hysteresis loops for several loading-unloading cycles for a polycarbonate/polybutylene terephthalate blend. D , specimen displacement; HR, ratio of hysteresis energy to total strain energy. Source: Ref 41 More

Fig. 1 Stress-strain behavior of polycarbonate as a function of strain rate, λ ˙ , at 22.2 °C (72 °F). (Note: For small strains, extension, e , is approximately equal to engineering strain, ε.) More

Fig. 2 Strain-rate and temperature dependence of yield stress for polycarbonate More

Fig. 7 Impact test of a polycarbonate box section More

Fig. 8 Stress-strain curves for rubber-modified polycarbonate at room temperature as a function of strain rate More

Fig. 9 Load-displacement behavior of an impacted rubber-toughened polycarbonate box More

Fig. 12 Permanent deformation of flat polycarbonate plate due to puncture test. (a) View from specimen underside. (b) Cross section of puncture area showing thinning of section More

Fig. 13 True stress/true strain behavior of polycarbonate. E 1 = 2.06 GPa (0.30 ksi); yield stress, σ y = 73 MPa (10.6 ksi); draw strain, σ d = 0.375; hardening modulus, E 3 = 145 MPa (21 ksi) More

Fig. 14 Phenomenon of propagating neck in a polycarbonate tensile specimen. 1 kN = 0.11 tonf; 1 cm = 0.4 in. More

Fig. 20 Comparison of load-deflection behavior of polycarbonate disk at room temperature and at −90 °C (−130 °F) More

Fig. 21 Comparison of failed polycarbonate disk from puncture tests (a) at room temperature and (b) at −90 °C (−130 °F) More

Fig. 1 Environmental stress crazing in a sample of polycarbonate under three-point bending. (a) Sample before exposure to acetone. (b) Sample after exposure to acetone (on cotton swab) More

Fig. 7 Critical strain for environmental craze initiation in polycarbonate. (a) Versus solubility parameter of the solvent, δ 0 . (b) Versus molar volume, V 0 , times the square of the difference in solubility parameters between polymer, δ p , and solvent, δ 0 . Source: Ref 20 More

Fig. 8 Solubility parameter map of critical strain to craze in polycarbonate, taking into account molar volumes, V 0 , and polar contributions to the solubility parameter. The numbered symbols represent critical strain to craze. δ pa , solubility parameter for a polar polymer; δ 0a More

Fig. 7 Polycarbonate creep compliance at 23 °C (73.4 °F) and 60 °C (140 °F) with Arrhenius plot of shift factor. a T , amount of curve shift. Source: Ref 22 More

Fig. 2 Photo-Fries reaction in aromatic polycarbonate; h , Planck’s constant; ν, photon frequency More

Fig. 2 Craze formation in a polycarbonate polymer in tension under alcohol. Source: Ref 2 More

Fig. 6 Isochronous plot of polycarbonate stress-strain behavior as a function of temperature. Note that the crazing locus decreases in strain value with increasing temperature. (a) 23 °C (73.5 °F). Relative humidity, 50%. (b) 40 °C (104 °F). (c) 80 °C (176 °F). (d) 100 °C (212 °F). Courtesy More