天津工业大学学报2024，Vol.43Issue(3)：16-22,7.DOI:10.3969/j.issn.1671-024x.2024.03.003
含镍铬合金丝纬编电热层复合材料的拉伸性能
Tensile property of composites with Ni-Cr alloy wire weft knitted electrothermal layer
摘要
Abstract
In order to develop a kind of electrothermal composites which can be used for aircraft anti ice,six kinds of electric heating fabrics made of nickel chromium alloy wire were preferred and prepared based on three kinds of weft knitted structures:plain,rib and interlock.The glass/epoxy electrothermal composite was prepared using Ni-Cr alloy wire weft knitted as the electrothermal layer.The effects of the fineness of Ni Cr alloy wire and weft knitted structure on the electrothermal properties and tensile properties of electric heating fabrics and electrothermal composites were studied by experiments.The results show that with the same weft knitted structure,the fineness of Ni Cr alloy wire is larger,the electrothermal conversion efficiency of the fabric is lower,the maximum equilibrium temperature of the surface of the electric heating fabric and its composite is higher,and the tensile strength of the electrothermal composite is lower.With the same fineness of Ni-Cr alloy wire,the surface of the composite with plain structure increased from room temperature to 74.1 ℃ at 11 VDC for 30 s,and the heating rate reached 1.63 ℃/s,which was 154.69％and 33.61％higher than that of the composite with rib and interlock structure,respectively;the tensile strength of plain structure composite is 450.2 MPa,which is 3.68％and 4.53％higher than that of rib and interlock structure composite respectively.The preliminary work shows that composites with Ni-Cr alloy wire weft knitted electrothermal layer is expected to meet the needs of the electrothermal composite for aircraft anti icing.关键词
复合材料/纬编结构/镍铬合金丝/电热性能/拉伸性能/防冰Key words
composite/weft knitted structure/Ni-Cr alloy wire/electrothermal property/tensile property/anti ice分类
轻工纺织引用本文复制引用
孙颖,冯亚,刘梁森,崔艳超,陈利..含镍铬合金丝纬编电热层复合材料的拉伸性能[J].天津工业大学学报,2024,43(3):16-22,7.基金项目
天津市自然科学基金资助项目(19JCYBJC18300) （19JCYBJC18300）
