Lightning damage suppression in a carbon fiber-reinforced polymer with a polyaniline-based conductive thermoset matrix
Lightning damage suppression in a carbon fiber-reinforced polymer with a polyaniline-based conductive thermoset matrix
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DOI：
10.1016/j.compscitech.2016.02.022
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发表时间：
2016-04
影响因子：
9.1
通讯作者：
Y. Hirano;T. Yokozeki;Y. Ishida;T. Goto;Tatsuhiro Takahashi;Danna Qian;S. Ito;T. Ogasawara;
中科院分区：
文献类型：
--
作者：
Y. Hirano;T. Yokozeki;Y. Ishida;T. Goto;Tatsuhiro Takahashi;Danna Qian;S. Ito;T. Ogasawara;
本文通过模拟雷击和残余强度试验，研究了新研制的聚苯胺基导电热固性树脂复合碳纤维增强聚合物（CFRP）层压材料抑制雷击损伤的有效性。以十二烷基苯磺酸（DBSA）和对甲苯磺酸（PTSA）为掺杂剂，以二乙烯苯（DVB）为交联剂，制备了聚苯胺基导电热固性树脂，提高了树脂的导电性和均匀性。聚苯胺基复合材料的面内和面外电导率分别为148和0.73 S/cm，分别是常规碳纤维/环氧复合材料的5.92倍和27.4倍。结果表明，在−40 kA和−100 kA的模拟雷击电流下，与传统的CF/环氧树脂复合材料相比，聚苯胺基复合材料的耐雷击损伤能力有了显著提高。在−100 kA的模拟闪电试验后，通过4点弯曲试验检测的残余强度显示，其初始强度仅比初始强度降低10%，而在−40 kA的测试中，损坏的CF/环氧树脂试件的强度降低了76%。因此，CF/PANI复合材料的优越导电性非常有效地抑制了雷击损伤，而无需应用任何雷击保护（LSP）。
In this paper, the effectiveness of lightning damage suppression by a carbon-fiber-reinforced polymer (CFRP) laminate with a newly developed polyaniline (PANI)-based conductive thermosetting resin was experimentally examined by conducting simulated lightning and residual strength tests. We developed the PANI-based conductive thermosetting resin using dodecylbenzenesulfonic acid (DBSA) andp-toluenesulfonic acid (PTSA) as dopants and divinylbenzene (DVB) as a crosslinking agent, which improved the electrical conductivity and homogeneity of the resin. The electrical conductivity values for the PANI-based composite were 148 and 0.73 S/cm in the in-plane and out-of-plane directions, which are 5.92 times and 27.4 times greater than that of a conventional carbon fiber (CF)/epoxy composite, respectively. As a result, the PANI-based composite, when subjected to simulated lightning currents of −40 and −100 kA, showed dramatic improvements in lightning damage resistance compared to the conventional CF/epoxy composite. The residual strength examined by 4-point flexural testing after the simulated lightning test at −100 kA revealed only a 10% reduction from its initial strength, whereas the damaged CF/epoxy specimen tested at −40 kA showed a 76% reduction. Thus, the superior electrical conductivity of the CF/PANI composite quite effectively suppressed lightning damage without applying any lightning strike protection (LSP).