Figure 1. Experimental procedure for the chemical modification of 
sepiolite with silica particles prepared in situ from the condensation of TEOS, TESPD, TEOS/TESPD. TEOS/TESPD mixture: 1/1 as 
molar ratio. (Bild: )
RAW MATERIALS AND APPLICATIONS

Sepiolite as reinforcing Filler for Rubber Composites: From the chemical Compatibilization to the commercial Exploitation

Chemically modified sepiolite was used as filler in silica based elastomeric composites. The sepiolite was modified through the reaction with silica (nano) particles from silanes such as TEOS and TESPD. Characterization of silica (nano) particles and sepiolite was performed by means of dynamic light scattering, thermogravimetric, elemental analysis, infrared spectroscopy and field emission scanning electron microscopy. 

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Table 1: Designed compound recipes based on liquid rubber (Bild: )
TESTING AND MEASURING

Additive Manufacturing of Rubber Parts based on liquid Rubber Polymers - Part 2: Development of low-viscosity Compound Formulations for use in additive Manufacturing

This publication shows the investigation of formulations and the production of sulfur-crosslinked compounds based on liquid rubbers for processing by means of additive manufacturing in the „Direct-Ink-Writing” process. This work follows on from the system engineering setup explained in Part 1 [1].

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Figure : Void volume of several CBs at a pressure of  MPa before and after 
pyrolysis. (Bild: )

Fourier Transform Rheology – an Innovative Tool for the Characterization of recovered Carbon Black

Colloidal properties of different carbon black (CB) grades represented by their structure and specific surface area were characterized before and after pyrolysis. Additionally, rubber compounds produced with these fillers were investigated by Fourier Transform (FT) Rheology, since the nonlinear, rheological behavior of filled elastomers under specific conditions is associated with the filler polymer interaction. 

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