I am working on UHMWPE based composite and have a problem with forming the composite by hot press.
Hello dear, If you want to obtain UHMWPE, you can dissolve it in hot xylene and the precipitate it in methanol.
It is known that more than 50% of Ultra-High-Molecular-Weight Polyethylene is processed via compression molding. The typical molding operation involves placing a pre-weighed charge, either as a powder or a preformed cake, in the lower half of a heated mold and the upper half is then forced, causing the material to be squeezed out to fill the mold cavity and take the mold shape. Often it is of interest to determine the function h1(t) indicating the separation distance between the lower half and upper half at different times of t > 0. Section 8.2 of Chapter 8 on COMPRESSION MOLDING in the book A. V. Shenoy and D. R. Saini, Thermoplastic Melt Rheology and Processing, Marcel Dekker Inc., New York (1996), deals specifically with the determination of the parameters for this operation for UHMWPE, and may be useful in this context.
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