Einar® anti-stat solutions for polypropylene (PP) injection moulding applications • Einar® 201 is the perfect food contact approved general purpose anti-stat for PP injection moulding applications • Einar® 201 offers excellent mould release and de-nesting properties Application background PP is a very versatile polymer used for many different purposes including medical and food packaging, appliances and a broad portfolio of everyday products. All of which may require anti-stat properties in some form. A good anti-stat will secure an attractive appearance of the products towards the consumer – dust-free products are obtainable by the use of efficient migratory anti-stats that are able to build an additive concentration on the polymer surface that form a conductive layer. . This will enable dissipation of static charges whereby dust and other fine particles will not be attracted. A good antistat for both homopolymer and random copolymer PP is required to deliver good and reliable anti-static performance, but it is also expected to work well as a mould release. In the final moulded product, de-nesting properties are often requested and that functionality is also provided by anit-stats that lubricate the polymer surface and allows easy separation of stacked parts.
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