Polypropylene filament was used as the warp yarn, and respectively Basalt filament and Polypropylene filament was applied to the weft yarn, several samples were woven in different organizational structure. Then the effect factors of filtration were tested, and permeability, abrasion resistance and air permeability of these samples were measured, filtration resistance was evaluated indirectly through the Flow Tester. How the influence of the performances of raw material the filtrating properties of the samples were investigated, which based on the above experiment, as well as the other factors. The results show that permeability and air permeability had little change in the same process parameters, however, abrasion resistance of the samples by basalt filament significantly were superior to the performance of polypropylene filament.
Response surface analysis was applied to optimize the processing of preparing the heat-resistance of the cotton stalks bast fiber reinforced PLA composite. Effects of all factors were evaluated and three factors were selected, which were addition of TAIC, mass fraction of fibers and length of fibers. Subsequently, response surface analysis based on Box-Behnken experimental design was employed to evaluate the interactive effects of three factors. One mathematical model for the processing of composites as functions was established. The results showed that the optimal processing was that the addition of TAIC was 2.1%, the mass fraction of fibers was 26.7%, the length of fibers was 11.7mm, and the HDT of composite was 161.39°C. Under the optimal conditions, the true value was close to the predicted value.
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