In Part 2, we irradiated three samples of LLDPE with the electron beam to impart long chain branching and we achieved the improvement in melt tension we were looking for. In Part 3, we irradiated one of the samples with a higher dose to produce LCB (long chain branched) LLDPE with a melt tension measurement […]
Hypothesis: long chain branching of LLDPEs can improve melt strength in terms of drawability. We irradiated 3 LLDPE feedstocks with an electron beam and compared the properties of the 3 processed resins to a LDPE Control. The starting samples were: Radiation Processing We dosed the samples with a 150kW, 4.5 MeV electron beam accelerator. The […]
This is the first of a three part series highlighting the advantages of long chain branching and crosslinking – – valuable modifications made by electron beam treatment. History Linear low density polyethylene (LLDPE) has been used in extrusion coating and blown film since the 1950s, where its excellent melt strength created new possibilities. Polypropylene (PP) […]