摘要
以蜂窝结构的玻璃纤维织物/酚醛树脂材料为增强体,以低密度酚醛树脂为基体,并分别以玻璃微珠和酚醛微珠为填料,制备了两种防隔热材料。经1300℃氧乙炔烧蚀考核60 s,采用酚醛微珠制得的材料F-B表现出较优的抗烧蚀隔热性能,试样的平均烧蚀质量为3.5 g,平均烧蚀厚度为0.7 mm,背面平均温升为52.5℃;采用玻璃微珠制得的材料F-A平均烧蚀质量为2.3 g,平均烧蚀厚度为2.2 mm,背面平均温升为65.7℃。两种材料均具有较低的密度、室温热导率和良好的抗压强度,采用酚醛微珠制得的材料F-B密度为0.48 g/cm^(3),热导率为0.057 W/(m·K),Z向10%应变压缩强度为9.58 MPa、XY方向压缩强度为4.77 MPa;采用玻璃微珠制得的材料F-A密度为0.40 g/cm^(3),室温热导率为0.055 W/(m·K),Z向10%应变压缩强度为7.79 MPa、XY方向的压缩强度为4.93 MPa。酚醛微珠制得的材料表现出较优的综合性能。
In this paper,two kinds of thermal insulation materials were prepared using honeycomb glass fiber fabric/phenolic resin as reinforcement,low density phenolic resin as matrix,and glass beads and phenolic beads as fillers,respectively.After the ablation test by oxyacetylene at 1,300℃for 60,the material F-B made of phenolic beads exhibits excellent ablation resistance and thermal insulation properties.The average ablation mass of the sample is 3.5 g,the average ablation thickness is 0.7 mm,and the average temperature rise on the back side is 52.5℃;The average ablation mass of material F-A made from glass beads is 2.3 g,the average ablation thickness is 2.2 mm,and the average temperature rise on the back side is 65.7℃.Both materials have low density,low room temperature thermal conductivity,and good compressive strength.The density of material F-B made from phenolic beads is 0.48 g/cm^(3),the thermal conductivity is 0.057 W/(m·K),and compressive strength at 10%strain in the Z direction and XY direction of the materialare 9.58 MPa and 4.77 MPa,respectively.The density of material F-A made from glass beads is 0.40 g/cm^(3),the thermal conductivity is 0.055 W/(m·K),the compressive strength at 10%strain in the Z direction and XY direction of the materialare 7.79 MPa and 4.93 MPa,respectively.The materials made from phenolic beads exhibit excellent comprehensive properties.
作者
牟秀娟
姚璐璐
李洋
祁涛
王其坤
MOU Xiujuan;YAO Lulu;LI Yang;QI Tao;WANG Qikun(Beijing Composite Materials Co.,Ltd.,Beijing 102101,China;Key Laboratory of Special Fiber Composite Materials,Beijing 102101,China)
出处
《高科技纤维与应用》
CAS
2023年第3期27-33,共7页
Hi-Tech Fiber and Application
关键词
蜂窝结构增强体
酚醛微珠
玻璃微珠
抗烧蚀性能
隔热性能。
honeycomb structure reinforcement
phenolic beads
glass beads
ablation resistance
thermal insulation performance
