Investigations on a plasma polymeric mould coating for the release agent-free demoulding of PU parts
In the discontinuous production of moulded polyurethane parts the use of external or internal release agents is inevitable, but reduces the efficiency of the production process considerably. This paper describes the development of a permanent plasma polymeric release coating based on hexamethyldisiloxane for the release agent-free production of PU-parts. Here, a method is presented, which measures the resulting demoulding forces quantitatively and allows a comprehensive assessment of the release properties. While the demoulding forces are high compared to conventional release agents, additionally the failure mechanism is investigated.
The Journal of Plastics Technology is a peer reviewed internet periodical published under the auspices of the Scientific Alliance of Polymer Technology (WAK)
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