PDF(Pubmed)
Abstract：
In the present research work is demonstrated a cross-scale manufacturing approach for the production of multifunctional glass fiber reinforced polymer (GFRP) composite tubes with a purposely redesigned filament winding process. Up until now, limited studies have been reported towards the multiscale reinforcement direction of continuous fibers for the manufacturing of hierarchical composites at the industrial level. This study involved the development of two different multi-walled carbon nanotube (MWCNT) aqueous-based inks, which were employed for the modification of commercial glass fiber (GF) reinforcing tows via a bath coating unit in a pilot production line. The obtained multifunctional GFRP tubes presented a variety of characteristics in relation to their final mechanical, hydrothermal aging, electrical, thermal and thermoelectric properties. Results revealed that the two individual systems exhibited pronounced differences both in crushing behavior and durability performance. Interestingly, for lateral compression the MWCNT coatings comprising a polymeric dispersant minorly affected the mechanical response of the produced tubes. The crashworthiness indicators of the multifunctional tubes displayed a slight 5% variation to the respective reference values, combined with a more ductile behavior. Moreover, regarding the bulk electrical and thermal conductivity values, as well as the Seebeck coefficient factor, the corresponding tubes displayed a variance of 233% and 19% and an opposite semi-conducting sign denoting a p- and n-type character, respectively.
摘要：
在目前的研究工作中，展示了一种跨规模的制造方法，用于生产多功能玻璃纤维增强聚合物（GFRP）复合管，并具有故意重新设计的长丝缠绕工艺。直到现在,有限的研究已经报道了对连续纤维的多尺度增强方向，用于在工业水平上制造分层复合材料。这项研究涉及开发两种不同的多壁碳纳米管（MWCNT）水基油墨，通过中试生产线中的浴涂单元，用于改性商用玻璃纤维（GF）增强丝束。所获得的多功能GFRP管具有与其最终机械相关的各种特性，热液老化,电气,热和热电性能。结果表明，两个单独的系统在压碎行为和耐久性能方面均表现出明显的差异。有趣的是,对于横向压缩,包含聚合物分散剂的MWCNT涂层微小地影响所生产的管的机械响应。多功能管的耐撞性指标显示与各自的参考值略有5%的变化，结合更具延展性的行为。此外，关于整体电导率和热导率值，以及塞贝克系数因子，相应的管显示出233％和19％的方差，以及相反的半导电符号表示p型和n型字符，分别。
