Irradiated LLDPE foam can extrude profiles.Foam profiles have been successfully extruded by a major producer of packaging foams from 100% LLDPE LLDPE Linear Low Density Polyethylene , which typically doesn't have the malt strength required to support cellular structures. Fine-celled foams in 1- to 1.5-pcf densities were extruded from Raprex R-300, an LLDPE modified with electron-beam irradiation irradiation /ir·ra·di·a·tion/ (i-ra?de-a´shun) 1. radiotherapy. 2. the dispersion of nervous impulse beyond the normal path of conduction. 3. to give it long-chain branching. Sterigenics International Inc. in ban Diego developed the patent-pending E-beam pretreatment pretreatment, n the protocols required before beginning therapy, usually of a diagnostic nature; before treatment. pretreatment estimate, n See predetermination. , which is applied to a specific conventional LLDPE. Sterigenics offers three commercial Raprex grades, including highly branched R-300, which boasts nearly double the tensile strength tensile strength Ratio of the maximum load a material can support without fracture when being stretched to the original area of a cross section of the material. When stresses less than the tensile strength are removed, a material completely or partially returns to its and puncture resistance of conventional LLDPE. Foaming was done with a hydrocarbon blowing agent on a conventional tandem extrusion line. Target markets include soft cushioning foams for packaging. Tel: (858) 271-6330 * PTDirect: 966AT |
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