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《工程塑料应用》 2021年第02期
DOI:10.3969/j.issn.1001-3539.2021.02.004
新型蜂窝浸渍树脂及对位芳纶纸蜂窝性能
周凯运,轩立新,王志强,苏韬,陈丽春
航空工业济南特种结构研究所,高性能电磁窗航空科技重点实验室,济南 250023 
New Impregnating Resin and Properties of Para-Aramid Paper Honeycomb
Zhou Kaiyun, Xuan Lixin, Wang Zhiqiang, Su Tao, Chen Lichun
AVIC Research Institute for Special Structure of Aeronautical Composite, Aviation Key Laboratory of Science and Technology on High Performance Electromagnetic Windows, Jinan 250023, China 
摘要:制备了一种适用于对位芳纶纸蜂窝的新型浸渍树脂——F·JN-5-07A/B树脂,并对其黏度和固化特性进行了表征,结果表明,改性后的F·JN-5-07A/B树脂在25~70℃具有适中的对位芳纶纸蜂窝浸渍工艺黏度(11~14 Pa·s),并且在70℃恒温1 h后的黏度升至68 Pa·s;固化温度较改性前降低了109.7℃,大大改善了对位芳纶纸蜂窝制备工艺。采用酚醛树脂和F·JN-5-07A/B树脂两种浸渍树脂制作了2-64和2-80两种规格的对位芳纶纸蜂窝。结果表明,相比于浸渍酚醛树脂的对位芳纶纸蜂窝,浸渍F·JN-5-07A/B树脂的对位芳纶纸蜂窝综合性能优异,2-64和2-80规格的对位芳纶纸蜂窝的室温平压强度分别提高了13.3%和17%,200℃时的平压强度保留率分别为75%和78%,介电常数和介电损耗角正切值分别由1.14和0.0050降低至1.09和0.0020;2-64规格对位芳纶纸蜂窝的L向剪切强度和L向剪切弹性模量分别提高了23.8%和9.2%,2-80规格的对位芳纶纸蜂窝分别提高了18.5%,13.8%。 
Abstract:A new type of resin (F·JN-5-07A/B resin) suitable for para-aramid paper honeycomb was prepared. The viscosity and curing characteristics of the resin were characterized. The results show that the F·JN-5-07A/B resin has a moderate para-aramid honeycomb impregnation viscosity of 11-14 Pa·s at 25-70℃, and the viscosity rises to 68 Pa·s after 1 h of the constant temperature at 70℃. The curing temperature is 109.7℃lower than that before modification, which greatly improved the preparation technology of para-aramid paper honeycomb. Two kinds of para-aramid paper honeycomb with 2-64 and 2-80 specifications were prepared by impregnating phenolic resin and F·JN-5-07A/B resin. The results show that, compared with the para-aramid paper honeycomb impregnated with phenolic resin, the comprehensive properties of the para-aramid paper honeycomb impregnated with F·JN-5-07A/B resin are excellent. The compressive strengths at room temperature of 2-64 and 2-80 para-aramid paper honeycomb increase by 13.3% and 17%, the retention rates of compressive strength at 200℃ is 75% and 78%, the dielectric constant and the tangent value of dielectric loss angle decrease from 1.14 and 0.0050 to 1.09 and 0.0020 respectively. The L-shear strength and L-shear modulus of elasticity of 2- 64 para-aramid paper honeycomb increase by 23.8% and 9.2%, and the L-direction shear strength and L-direction shear elastic modulus of 2-80 para-aramid paper honeycomb increase by 18.5% and 13.8% respectively. 
关键词:浸渍树脂;对位芳纶纸蜂窝;力学性能;介电性能 
Keywords:impregnating resin; para-aramid paper honeycomb; mechanical property; dielectric property 
本文引用格式:
周凯运,轩立新,王志强,等.新型蜂窝浸渍树脂及对位芳纶纸蜂窝性能[J].工程塑料应用,2021,49(2):22-28.
Zhou Kaiyun,Xuan Lixin,Wang Zhiqiang,et al. New impregnating resin and properties of para-aramid paper honeycomb[J]. Engineering Plastics Application,2021,49(2):22-28. 

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