Polioksimetilēna/etilēna -oktēna kopolimēra kompozītu struktūra un īpašības

Izpētītas POM/EOK maisījumu īpašibas

The Effect of Small Additions of a Liquid-Crystalline Polymer on the Mechanical Properties of Polyethylene

Results of an investigation into the mechanical properties of polyethylene with small, no more than 3 wt.%, additions of a thermotropic liquid-crystalline polymer (LCP) are reported. Experimental data on the influence of LCP additions on the tensile stress–strain diagram, elastic modulus, long-term (up to a 1000-h) creep, and creep recovery after unloading of the specimens are obtained. The elastic properties of the materials are analyzed taking into account the effect of self-reinforcement owing to the formation of extended LCP inclusions. The results obtained are compared with experimental data. Analytical descriptions of the creep and creep recovery of the materials investigated are also presented

Improvement of the Properties of the Recyclable Polyethylene Terephtalate Blends through Modification

Key to the sucess of the most of commercially used blends is hidden in the selection of intrinsically complementing components or in the development of effective compatibilization procedure. The current research reflects investigation of the poly(ethylene terephtalate) blends with polypropylene compatibilized by polypropylene grafted maleic anhydride and ethylene-vinyl acetate copolymer. Results of the investigation show that the effect of compatibilization is strongly dependant on the composition of the blends

The effect of small additions of a liquid-crystalline polymer on the mechanical properties of polyethylene

Results of an investigation into the mechanical properties of polyethylene with small, no more than 3 wt.%, additions of a thermotropic lioquid-crystalline polymer (LCP) are reported. Experimantal data on the influence of LCP additions on the tensile stress-strain diagram, elastic modulus, long-term (up to a 1000-h) creep, and creeep recovery after unloading of the specimens are obtained. The elastic properties of the materials are analyzed taking into account the effect of self-reinforcement owing to the formation of extended LCP inclusions. The results obtained are compared with experimental data. Analytical descriptions of the creep and creep recovery of the materials investigated are also presented