Fillers and reinforcements in polymers

To modify the property profiles of thermoplastics (and also thermosets) different fillers and reinforcements are applied. We work on the questions with which filler and which modification what property profile can be reached. Also we deal with the influence of processing, which is especially prominent in the case of fibre reinforcement, to also investigate the structure- property-processing-relationships.

AdInComp

In the scope of the project AdInComp (program “Regionale Wettbewerbsfähigkeit 2007-2013”, co-funded by the Upper Austrian government and the EU) we worked, besides other topics, on the adhesion of basalt fibres in a polymer matrix via selected interface and matrix modification. Via materials selection, aided in the pre-screening with a micromechanical test (the microdebond-test) we were able to improve elastic modulus and stiffness up to 50% in regard to the initial formulation.

Ecotool

Injection moulding for small scale production is often not realised due to the high cost of the moulds. Through injection moulds from metal powder filled resin casts a cost effective alternative to aluminium- and steel-moulds should be created, which is applicable for fully automated injection moulding up to at least 2,000 shots. In this project first steps towards testing the feasibility of this idea were undertaken. We found, that it is necessary to have a well-developed material for the casting material as well as a well-developed process, to succeed in manufacturing injection moulding tool inserts, which are applicable for producing 2,000 shots at least.

EMU-Spiro

Photochromic spiro-pigments can be applied in autarkic controlled shading systems to reduce energy in buildings. However, these colours can be used only to a limited extent due to the low light fastness and UV-instability. Additionally, the properties of the different photochromic additives are modifiable depending on the material’s matrix.

Thus, the aim of the project is the determination of the significant influence parameters of photochromic spiro-pigments (depending on the enveloping shell) to investigate a structure-property-relationship-model.

ModiTalc

The project “ModiTalc”, a sub-project within the project “ReBiComp” (program “Regionale Wettbewerbsfähigkeit 2007-2013”, co-funded by the Upper Austrian government and the EU), dealt with the surface modification of talc with silanes. The results show, that, depending on the organo-functionality of the silane the interfacial interaction with the compatibilizer varies, which is also represented in differences in the macroscopic properties.

References

APF (Stiwa), Artweger, ATC, Battenfeld-Cincinnati, Borealis, Camo, Carbotech, E.G.O., EMO, Erema, FACC, Faschang, FCI, FH Wels, Fill, Greiner Packaging, Greiner Tool Tec, Haidlmair, Hawle, ifw, Intier, isiQiri interface technologies, KMI, Kruschitz, KTM Technologies, Kuvag, KWK, Linz AG, Lipp-Terler, Lynx, M2C, MACO, Magna, MBA Polymers, Mondi Frantschach, NGR, OFI, Oswald Kienbacher, PCE, Peak Technology, Pollmann, Poloplast, Polytec Composites, PPE, Praher, R3PC, Rosenbauer, Scheuch, Semperit, SFC, Sony DADC, SV Brandstätter, Teufelberger, Teufelberger Seil, TGW, Theurl Leimholzbau, Tiger Lacke, TIZ Grieskirchen, Trodat, Tyrolit, Ulbrichts Witwe, W&H Dentalwerk, Wethje, Willidal, WP Suspension Austria, Zitta