Differential scanning calorimetry (DSC) measurements on melt mixed PA6-PA66 blends with and without MWCNTs

The raw data of the thermal analysis by differential scanning calorimetry (DSC) for heating (1./2.) and cooling of PA6-PA66 blends with and without MWCNTs are stored here. The datas were used in the publication:Beate Krause, Lisa Kroschwald and Petra Pötschke, The Influence of the Blend Ratio in PA6/PA66/MWCNT Blend Composites on the Electrical and Thermal Properties,Polymers 2019, 11, 122; doi:10.3390/polym11010122 experimental part:Two types of polyamide (PA), namely PA6 (Ultramid® B27E) and PA66 (Ultramid® A27E),both from BASF SE (Ludwigshafen, Germany), were used. For the incorporation of multiwalledcarbon nanotubes, two masterbatches containing 15 wt % Nanocyl NC7000TM were used, namelyPlasticyl™ PA1503 (PA6) and Plasticyl™ PA1501 (PA66), both provided by Nanocyl, S.A. (Sambreville,Belgium). To determine the electrical percolation threshold, the masterbatch was diluted with purepolyamide of the same kind (Plasticyl™ PA1503 and Ultramid® B27E or Plasticyl™ PA1501 andUltramid® A27E). The PA66/PA6 blend compositions filled with constant 1 wt % MWCNT wereprepared by dilution of Plasticyl™ PA1501 (PA66) with Ultramid® B27E (PA6) and Ultramid® A27E(PA66) to vary the PA66/PA6 ratio in the blend.The thermal behavior (via differential scanning calorimetry (DSC)) of processed materials wascharacterized using a Netzsch DSC 204 F1 Phoenix instrument (Selb, Germany). This was performedunder a nitrogen atmosphere in a temperature range of 0 C to 290 C, with a cooling/heating rate of10 K/min and a run cycle of first heating-cooling and then heating. The crystallinities of the blendcomponents, alpha, was calculated using the value of enthalpy of melting for 100% crystalline PA6 or PA66of 255 J/g and 230 J/g [Ehrenstein, G.W.; Riedel, G.; Trawiel, P. Praxis der Thermischen Analyse von Kunststoffen, 2nd ed.; Carl Hanser Verlag: Münschen, Germany, 2003.], respectively. The DSC measurements were carried out and evaluated by Ms. Kroschwald. The sample composition is given in the sample name:e.g. "PA66 rein" = pure PA66"PA66PA6-4060" = 40% PA66+60% PA6"PA6 MB" = PA6 masterbatch Plasticyl™ PA1503"PA66PA6-2080-1%CNT" = 20% PA66 + 80% PA6 + 1% CNT"DE-PA66-1% CNT" = direct incorporation (DE) of 1% CNT in pure PA66 (no masterbatch used) The datas are available as Netzsch raw datas and txt-files.