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| The Reinforce Effect of Polyimide Resin on PPTA Paper |
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| DOI：10.11980/j.issn.0254-508X.2015.08.002 |
| Key Words:polyimide resin PPTA paper impregnation process optimum concentration |
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| Abstract:The structure and thermal stability of four kinds of polyimide resin were analyzed by using FT-IR, DSC-TG analysis; The effect of impregnated amount of resin in poly(p-phenylene terepthalamide)(PPTA) paper on its strength property, the compatibility between PPTA paper and four kinds of resin were invertingated when the PPTA paper was impregnated with the resins. The optinal impregnating conditions to produce high-performance PPTA paper was determined through the studies. The results showed that: PM1 resin had higher amidation degree and was the aromatic polyimides with an armine end group having similar molecular structure with PPTA, therefore PM1 resin had good compatibility with PPTA. The amount of resin in PPTA paper increased with the increasing of resin concentration, the amount of resin in the PPTA paper was up to 36.68% when the concentration of PM1 resin was 25%, the tensile index of the PPTA compsite was 52.4 N·m/g, elongation 0.8%, tear index 43.1 N·m2/g. |
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