摘要
利用同轴射流技术制备了聚甲基丙烯酸甲酯(PMMA)及聚碳酸酯(PC)的复合透光材料。同轴共纺技术制备的壳芯复合纳米纤维具有壳层PMMA及芯层PC的有效结构,在特定温度下,芯层PC无序纳米纤维成为壳层熔融PMMA树脂基体中的增强体。扫描电镜和透射电镜结果显示,复合纳米纤维的表面形貌良好,具有壳芯结构的复合纳米纤维均匀分布于无纺布中。热压成型技术制备的复合材料力学性能和光学性能结果表明,由于增强体PC纳米纤维的尺寸效应,复合材料的力学性能明显提高,当PC含量为4%时,材料的拉伸强度提高了17%,且当PC含量控制在3%以内时,复合材料透光性能的下降值可控制在10%以内。
PMMA/PC transparent composite was prepared through co-axial eletrospinning method, with core-shell structure nanofiber which was composed by PMMA as shell and PC as core. PC nanofiber would become reinforced fiber in PMMA resin matrix, which was melted at certain temperature. SEM and TEM results showed that nanofiber had good surface morphology, and the core-shell nanofiber was distributed evenly in fabrics. The mechanical and optical properties of composite, manufactured by hot-press molding technique, indicated that due to nanoscale size effect, the mechanical properties were improved obviously, when PC content reached 4% , the tensile strength was improved by 17% and only 10% decrease in visible light transmittance while PC content was less than 3% at the same time.
作者
陈卢松
CHEN Lusong(Shanghai Aircraft Design and Research Institute,Shanghai 201210,China)
出处
《塑料》
CAS
CSCD
北大核心
2018年第4期43-46,共4页
Plastics
