Trexel offers chemical foaming for molded PP and PE parts

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  • Microcellular foaming of unfilled PP and PE with chemical blowing agent
  • No corrosive byproducts, no need for scavenger technology
  • Homogeneous gas/cell matrix by utilizing uniform size CaCO3 particles of .08 microns

Trexel Inc. is widely known as the company that developed and commercialized the MuCell Process for the production of microcellular foamed parts in injection molding, blow molding and extrusion. This additive system, originally developed by Polyfil, represents the next generation in chemical foaming technologies. Having only one reaction point, unlike most foaming additive systems, TecoCell does not produce corrosive byproducts or require scavenger technology.

At 200°C/393°F the microcellular structure is created

TecoCell has a reaction temperature of 200°C (393°F), at which point the system releases CO2 to create a microcellular structure in the range of 20-80 microns. As with other foaming systems, the optimum size of the cell will depend on the process conditions and type of material used as well as the part geometry. This system is targeted at injection molding across all industries and specifically at automotive blow molding applications. Weight reductions of 30-35% for blow molding and 7-10% for injection molding parts are typical for this additive package. The blow molding applications have seen very good property retention.

Homogeneous cell matrix by utilizing uniform size CaCO3 particles of .08 microns

TecoCell, which is produced through a specialized and patented process, creates a homogeneous gas/cell matrix by utilizing uniform size CaCO3 particles of .08 microns. The CaCO3 nano particles distribute themselves evenly in the material system, resulting in a strong and constant cell structure throughout the blow molded or injection molded part. The uniformity of the cell gives the user a light weight part with low warpage, faster cycles times, better stiffness and higher heat distortion properties. This even distribution and small cell size of the TecoCell additive is especially effective in unfilled PP and PE materials. These materials are commonly used for blow molded automotive ducts and injection molded thin wall packaging.

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