PEI composite

Figure 11.3 Partial fluxes of isoamyl alcohol, ethyl acetate, isoamyl acetate and ethyl hexanoate as a function of their feed crossflow velocity (bottom axis) and Reynolds number (top axis) in a singlechannel module, using a POMS-PEI composite membrane. Notice that external mass-transfer limitations are not fully overcome when soluteswith a high affinity towardsthe membrane are processed (Adapted from Ref. 32.)...

Zenasni R, Bachir AS, Vina I, Argiielles A, Vina J. Effects of hygro-thermomechanical aging on the interlaminar fracture behavior of woven fabric fiher/PEI composite materials. J Compos Mater 2006 19 385-98. http //dx.doi.org/ 10.1177/0892705706059743. 

Figure 5.19 Influence of aggressive fluids on the secant modulus of a PEI composite during fatigue (45° orientation, = 95MPa). A, in air , in hydraulic fluid , in MEK...

Cross-linked PDMS/PEI composite membranes were used in PV separation of thiophene-n-heptane, 2-methylthiophene-n-heptane, 2,5-dimethylthiophene-n-heptane, n-butyl mercaptan-n-heptane, and n-butyl sulfide-n-heptane mixtures (Chen et al. 2008). PV results indicated that as the feed temperature increased from 50°C to 90°C, the partial flux increased and the enrichment factor decreased. The partial flux and the enrichment factor of sulfur species had the same order n-butyl sulfide < n-butyl mercaptan < 2,5-dimethyl thiophene < 2-methylthiophene < thiophene. As the organic S content increased from 50 ng/pl to 250 ng/pl, the partial flux of organic sulfur increased and the enrichment factor dcCTcased slightly but the total flux was scarcely influenced by the concentration of organic sulfur as very low content of organic sulfur led to minor contribution to the total flux. 

Figure 5.2 Relationship between friction coefficient and load of 20% glass fibre reinforced PSU composites and 20% glass fibre reinforced PEI composites against a 30% glass fibre reinforced PA 4,6 composite of different sliding speeds. Reproduced with permission from Z. Demir, Journal of Polymer Engineering, 2009, 29, 8-9, 549. 2009, De Gruyter Publishing [22]...

The O2-N2 and H2-N2 separation factors of the PTFPMS-PEI composite membranes with different PTFPMS molecular weights are presented in Fig. 6.5. When the concentration of PTFPMS was less than 5wt%, the separation factors of the PTFPMS-PEI composite membranes were low. Interestingly, upon... 

Figure 6.5 Effect of nwlecular weight of PTFPMS sealing layer on the gas separatbn factor of PTFPMS-PEI composite membranes (a) H2-N2 separation factor and (b) O2-N2 separation factor. Reproduced with permission from Ref [ 106].

Figure 6.4. Process used for making MWNT/PEI composite thin films. Reproduced from [47] with permission from lOP Publishing Ltd...

Figure 6.14. DC resistivity of MWNT/PEI composite at room temperature. Reproduced from [46] with...

Figure 1. Schematic representation of resistance welding of a CF/PEI composite laminate. ...

Figure 2. Interior configuration of a CF/PEI composite (a) before thermal deconsolidation and (b) after thermal deconsolidation.

Figure 3. Void migration in a CF/PEI composite at various heating times/...

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