T. S. Natarajan gives an insight his research on mechano-adaptive composites for future applications conducted ipf Dresden. A. Ansarifar (Loughborough University) has explored an alternative method for the vulcanization of rubber articles using a single material additive. Scientists at Dow describe the advantages of low temperature cure of LSR and the properties of ultra-high molecular weight EPDM for automotive, consumer, and infrastructure applications.
In this issue:
- New ultra-high molecular weight EPDM for automotive, consumer, and infrastructure applications
V. Thakur (Dow Europe GmbH), S. Wu and C. Li Pi Shan (Dow Packaging & Specialty Plastics)
In this paper a new UHMW Nordel 4655OE EPDM and its use in the development of softer black and non-black rubber compounds requiring very high levels of physical, compression, and chemical resistance properties is introduced. These compounds are commonly used in under the hood automotive molded parts, injection molded gaskets, and for extruded construction profiles.
- Mechano-adaptive composites for future applications
T. S. Natarajan, A. Das und G. Heinrich (Leibniz-Institut für Polymerforschung Dresden)
This article describes a class of novel smart materials known as mechano-adaptive composites. Mechanical adaptability is realized by exploiting the polymorphic phase transition characteristics of certain abundantly available inorganic filler particles incorporated in the elastomer matrix.
- An alternative method for the vulcanization of rubber articles
A. Ansarifar, K. Noulta, G. W. Weaver, and K. G. U. Wijayantha (Loughborough University)
A surface-modified zinc oxide is prepared using a sulfenamide accelerator to provide a convenient single material component to use as additive. The effect of an increasing loading of this additive on the cure properties EPDM and BR containing elemental sulfur was subsequently measured. All the indications are that the use of surface-modifi ed zinc oxide in combination with sulfur cure systems improves efficiency of the vulcanization process.
- Low temperature cure of liquid silicone rubber
P. Beyer, N. Gerard, H. P. Wolf (Dow Silicones Deutschland)
In co-molding applications, the cure temperature of LSR is inherently limited by the thermal stability of the overmolded counterpart, and conventional high process temperatures often cannot be used. A new generation of low temperature cure (LTC) LSR materials that cure between 90 °C and 120 °C can overcome those co-molding challenges and enable new designs and applications.
Further information about the new issue at https://www.gupta-verlag.com/magazines/rfp-rubber-fibres-plastics-international/03-2019.URL: https://www.gupta-verlag.com/news/literature/23196/the-new-issue-of-rfp-is-out