The melt strength
of three blends increased with the molecular weights of LDPE, and this may be due to the existence of the long or short side chain branchings in LDPE.
it was targeting thicker industrial blown films that could take advantage of the material's broad MWD, high melt strength
, and extraordinary tensile strength.
The Thermoplastic Materials & Foams Division's ANTEC '99 Best Paper Award in the Polyolefins category was given to the paper titled "Developments in High Melt Strength
PP: Technology, Properties, Applications and Markets." The authors of the paper were Manfred Ratzsch, Ulf Panzer, Achim Hesse, and Hartmut Bucka of Borealis AG, Linz, Austria.
In recent years, the melt strength
of a polymer has been recognised as one of the important processing parameters in melt processing operations where stretching or drawing is involved at one or more stages of the process.
Compared with other products that boost HDPE gloss, POP colors reportedly provide greater stiffness and better melt strength
, allowing for the use of high-gloss HDPE in monolayer bottles and as the skin in multilayer bottles.
The melt strength
of polyethylene (PE) resins is an important property, one that is believed to determine the processing characteristics of a material during product forming.
New resin grades with greater melt strength
are in development for monolayer and multilayer applications, he notes.
Homopolymer PET, as produced, has little melt strength
and is difficult to process on conventional three-roll stacked sheet lines and cast film lines.
They are expected to process much like random copolymers due to comparable shear rheology and melt strength
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However, PP's low elongational viscosity and poor melt strength
have prevented its widespread use in extruded, low-density foams.
of America (Nycoa) Inc., Manchester, N.H., boasts superior melt strength
, resulting in uniform and predictable sag during heating.
A global provider of liquid polybutadiene offers a method to improve melt strength
of polypropylene (PP).