Processing Conditions vs. Selected Properties of Mouldings Made of ABS with Addition of Flame Retardant |
| M. Trzaskalska
Częstochowa University of Technology, 42-201 Częstochowa, Poland |
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| The scope of application of polymers is gradually expanding, thanks to the possibility of their modification. The most common choice is dyeing. Regardless of the color of the used coloring agent, titanium white is always applied. It gives white color or is used as an optical brightener. At the same time, TiO2 is recommended as a flame retardant. It is mostly used in the form of a pigment (powder). However, there are no studies where TiO2 is used as a colorbatch. The aim of this work was to investigate the effect of titanium dioxide in the form of a colorbatch on the flammability and selected properties of mouldings manufactured in various processing conditions. A colorbatch on an ABS matrix was used in the research. The variable processing conditions were: injection temperature Tw, volume flow rate Vw, plasticization delay and the addition of the colorbatch. It was found that the processing conditions and the addition of the colorbatch did not have a significant effect on the hardness, which was in the range from 72.81°Sh (Shore) to 75.95°Sh (Shore). It was also noted that the addition of a colorbatch and increasing Tw reduces the impact strength even by several dozen percent. Moreover, it was noted that use of the colorbatch with TiO2 causes a delay in the ignitability of the samples in selected cases. It is difficult to determine whether the variable processing conditions or the addition of the colorbatch have a greater impact on the ignitability of the mouldings. |
DOI:10.12693/APhysPolA.139.590 topics: injection moulding, ABS, TiO2, flame retardant |