摘要
为了响应我国碳达峰和碳中和的环境目标并提高蜂窝芯的性价比,本文采用木纤维纸和混杂纤维纸制备蜂窝芯材,研究蜂窝芯的制备工艺、阻燃性能、力学性能和水迁移性能。结果表明:当阻燃剂与纸张的重量比约为6%时,48 kg/m^(3)体密度的木纤维纸蜂窝芯和混杂纤维纸蜂窝芯都具有优异的阻燃性能,平均自熄时间为0 s,平均烧焦长度分别为79 mm和51 mm,滴落物平均燃烧时间为0 s,能够满足HB 5469-91垂直燃烧阻燃性能要求;木纤维纸蜂窝芯和混杂纤维纸蜂窝芯在常温下稳态平面压缩强度分别为1.64 MPa和1.75 MPa,L向剪切强度分别为1.02 MPa和1.08 MPa,W向剪切强度分别为0.53 MPa和0.61 MPa。
In order to respond to the environmental objectives of carbon peak and carbon neutralization in China and improve the cost performance of honeycomb core,wood fiber paper and hybrid fiber paper are used to prepare honeycomb core materials.The preparation process,flame retardancy,mechanical properties and water migration properties of honeycomb core are studied.The results show that when the weight ratio of flame retardant to paper is about 6%,both wood fiber paper honeycomb core with 48 kg/m3 bulk density and hybrid fiber paper honeycomb core have excellent flame retardant properties.The average self extinguishing time is 0 s,the average burning length is 79 mm and 51 mm,respectively,and the average combustion time of dripping is 0 s,which can meet the requirements of HB 5469-91 vertical combustion flame retardant.At room temperature,the steady-state plane compressive strength of wood fiber paper honeycomb core and hybrid fiber paper honeycomb core are 1.64 MPa and 1.75 MPa,respectively,the L-direction shear strength is 1.02 MPa and 1.08 MPa,respectively,and the W-direction shear strength is 0.53 MPa and 0.61 MPa,respectively.
作者
刘燕峰
刘青曼
陈旭
LIU Yan-feng;LIU Qing-man;CHEN Xu(Soft Materials Technology Center,AECC Beijing Institute of Aeronautical Materials,Beijing 100095,China;National Key Laboratory of Advanced Composites,AECC Beijing Institute ofAeronautical Materials,Beijing 100095,China;AVIC Composite Corporation Ltd.,Beijing 101300,China;Aviation Composite(Beijing)Science and Technology Corporation Ltd.,Beijing 101300,China)
出处
《复合材料科学与工程》
CAS
北大核心
2022年第6期76-80,128,共6页
Composites Science and Engineering
基金
国家重点研发计划项目(2018YFA070330)。
关键词
碳达峰和碳中和
木纤维纸蜂窝芯
混杂纤维纸蜂窝芯
阻燃性能
水迁移性能
复合材料
carbon peak and carbon neutralization
wood fiber paper honeycomb core
hybrid fiber paper honeycomb core
flame retardant performance
water migration performance
composites
