While the functional compound Polycom JB 7100 is often introduced into polyolefins as a modifier, processing aid and bonding agent, little is known about its influence upon the basic structure and mechanical properties of composite tape yarns. Polycom JB 7100 is a master bath of inorganic materials and polyolefins. To show the effects of different amounts (0 -6 wt%) of this additive in polypropylene (PP)-based composite tape yarns, experiments were made without changes to other additive portions and at constant process parameters. The linear composition-property relations showing the effects of portions of the variable component on the changes in morphology, geometrical properties and tensile behaviour were obtained. Tape yarns, in which a portion of PP was replaced by the functional compound Polycom JB 7100, had tensile properties about 2 -9% lower than the yarns without this additive, whereas the values of width, thickness and linear density after applications of the additive were about 3 -4% greater if compared with those of the basic sample.

Initial consuming properties of polypropylene (PP) based composite tape yarns having different portions of ultraviolet (UV) light stabilizer are studied. In many cases, the samples with different portions of UV light stabilizer exhibit changes at level of initial properties, that is, the statistically significant side effects are obtained. When portion of the additive increases, the initial values of width, thickness and linear density of the modified samples are found to be reduced. The additions of UV light stabilizer also generate the statistically significant changes for the most tensile characteristics. The linear and second order polynomial equations are suggested to show the side effects on the properties. Some visual changes in morphology, that is, the differences in smoothness of the surfaces of the samples are also noticed. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 44400.

The present paper studies the effects of the additions between 3.00 and 7.00 wt% of additive Granic 422 instead of polypropylene on polymeric tapes properties as color difference, structure and tensile parameters. Micro-structural analysis revealed additional agglomerations of calcium carbonate particles on the surfaces of the tapes after application of new portions of the variable additive. Compositionproperty relations showing the changes in properties of tapes were suggested. For increase in color difference of the tapes from zero to 0.18, a logarithmic relation was used. For other indices, the linear relations were proposed. On the basis of the relations, the positive changes of 2.0-2.7% in macrostructural parameters (width, thickness, linear density) and negative changes of 2.1-8.8% in tensile characteristics were obtained.