About removal resin excess under autoclave forming of products from polymer composite materials
Dushin M.I., Khrulkov A.V., Raskutin A.E. About removal resin excess under autoclave forming of products from polymer composite materials // Proceedings of VIAM. 2013. No. 1. URL: https://test.viam.ru/en/journal/2013/1/3
Abstract
Method of approach to a definition of the time for resin excess removal from the pre-preg semiproduct package for PCM products on the base of Darsi’s law with preliminary experimental definition of permeability coefficient of reinforcing filler , viscosity and durability of the resin at autoclave forming temperature also, was described. For definition of permeability coefficient the calculated method of combination of leakage (percolation) and reduction to elementary cell was used. The results of calculation of porous system permeability ,consisting of 7 µm Ø fibers depending on porosity of the structure were shown, but also experimental data on changing of viscosity and lifetime of the epoxy resin depending on temperature.