KETJENBLACK Conductive Carbon Blacks

Ketjenblack EC-600 JD is a carbon black having a unique morphology. It is extremely suitable for electroconductive applications. Due to its structure only one sixth the asKnint of Ketjenblack EC-600 JD is needed compared to conventional carbon blacks in many applications. Ketjenblack EC-600 JD is especially useful in applications requiring extremely high conductivity at relatively low loadings of carbon black. 

BftSF Corp. Dyes for plastics SUiMW/LUMOGEM/THEBtlOPLAST  

Fastness to light (1/3 SD GPPS) 8 (8=best fastness to light) Specific Gravity 1.29 cm3 

0 = Suitable under certain conditions only, preliminary trials 

Type of Dye Azo dye Color Index Solvent Yellow 56/11021 Heat Stability (GPPS) 240C Fastness to Light (1/3 SD GPPS)  

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Ketjenblack, Conductive carbon black, Akzo Nobel Chemicals Inc. 

Another strategy has to be chosen. This is to let the piezofiber (ie, the conductive core with high-density polyethylene (Aspun 6835A, Dow, USA) and carbon black (Ketjenblack EC-600JD Akzo Nobel, the Netherlands) and the piezoelectric sheath with PVDE (Solef 1006, Solvay Solexis, Italy)) mecharucaUy come into close proximity with a conductive thread. Here we take a thread from Class El above, Shieldex (Statex, Germany, silver-coated polyamide). By this we form a textile variant of the triad with the conductive carbon black core as the inner electrode, PVDF sheath as the active layer, and the Shieldex as the outer electrode. 

The first filler used in this study was Ketjenblack EC-600 JD. This is an electrically conductive carbon black (CB) available from Akzo Nobel, Inc. The highly branched, high smface area CB structure allows it to... 

The effects of nano-structured carbon fillers [fuUerene C60, single wall carbon nanotube (SWCNT), carbon nanohom (CNH), carbon nanoballoon (CNB), and ketjenblack (KB) and conventional carbon fillers [conductive grade and graphi-tized carbon black (CB)]] on conductivity (resistance), thermal properties, crystallization, and proteinase K-catalyzed enzymatic degradation of PLA films were investigated by Tsuji et al. [70]. The researchers found that the addition of 1 wt% SWCNT effectively decreased the resistivity of PLA film compared with that of conventional CB. The crystallization of PLA further decreased the resistivity of films. The addition of carbon fillers, except for C60 and CNB at 5 wt%, lowered the glass transition temperature, whereas the addition of carbon fillers, excluding... 

CNB), and Ketjenblack (KB), Conductive grade and graphitized carbon black (CB) ... 

Recently, nanostructured carbon-based fillers such as Ceo [313,314], single-wall carbon nanotubes, carbon nanohorns (CNHs), carbon nanoballoons (CNBs), ketjenblack (KB), conductive grade and graphitized carbon black (CB) [184], graphene [348], and nanodiamonds [349] have been used to prepare PLA-based composites. These fillers enhance the crystalUza-tion ofPLLA [184,313,314].Nanocomposites incorporating fibrous MWCNTsandSWCNTs are discussed in the section on fibre-reinforced plastics (section 8.12.3). 

Carbon is generally used as catalyst support material because of its high electric and thermal conductivity, chemical stability, and porous structure [11]. The catalytic activity of the catalyst layer increases with increasing carbon surface area due to better platinum dispersion. High surface area carbon blacks such as Ketjenblack and Vulcan are therefore preferred in PEMFC application. However, carbon is thermodynamically unstable at normal cathode potentials between 0.5 and 1V. As shown in Figure 20.1a, carbon is oxidized to carbon dioxide (CO2) or carbon monoxide (CO) at high electrode potentials whereas it is reduced to methane (CH4) at low electrode potentials. The following reactions are relevant for fuel-cell operation ... 

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