The in-situ formation of dispersed polyaramide whiskers during melt processing of polymers represents a new route to thermoplastic and elastomeric organic microcomposites. When N-(p-aminobenzoy1)-caprolactam (PAC) is injected into melts of high molecular weight polyamide-6 or dihydroxy-terminated poly(oxytetramethylene) liquid rubber, stable dispersions of polymeric whiskers are formed. At temp...

Shock wave induced cavitation experiments and atomic force microscopy measurements of flat polyamide and hydrophobized silicon surfaces immersed in water are performed. It is shown that surface nanobubbles, present on these surfaces, do not act as nucleation sites for cavitation bubbles, in contrast to the expectation. This implies that surface nanobubbles are not just stable under ambient cond...

Abstract The dyeing of recycled polyamide nonwoven fabrics based on nanofibers (PA-NWNF), which were fabricated from wastes, was conducted in this study. Since PA-NWNF exhibited a high surface area to volume ratio, it dyed with different particle sizes Disperse Red 167 dye (DR 167, DR 167-B, and 167-C) without auxiliary agents prevent further environmental pollution. undyed PA-NWNF, as well the...

Polyamide 6 (PA6) nanocomposites with electric and thermal conductive properties were formulated via melt processing of PA6 diff erent inclusion reduced graphene oxide (RGO). These showed that the small percolation threshold perfect formation link form 0.5 wt % ~3.0 RGO, respectively. Examination crystallization confi rmed RGO enabled structure mostly through speeding up ofcrystal nucleus, reac...

Some most representative results for semicrystalline polymers by positron annihilation spectroscopy method, showing the influence of crystallinity and morphology of samples on positron annihilation characteristics, are reminded. The latest finding of the author’s experiment on modified polyamide 6 is presented. The latter reveals that the interfacial zone between a lamella and an amorphous regi...