三维经编间隔结构汽车坐垫织物的抗压缩疲劳性能

Compression fatigue resistance of automobile cushion fabric based on three-dimensional warp-knitted spacer structure

为研究三维经编汽车坐垫的抗压缩疲劳性能,选择芳砜纶作为织物表面层的原料,聚偏氟乙烯作为织物间隔层的原料,通过平纹、六角和菱形网孔3种表面层组织的不同组合,设计了4种组织结构方案,并通过对织物厚度的调节,对6块织物试样进行抗压缩疲劳性能测试,比较分析各织物的抗压缩疲劳曲线及压缩疲劳后的破坏形态,探讨织物抗压缩疲劳性能影响因素。结果表明:表面层组织结构越密实,间隔丝的固着程度越高,织物所能承受的载荷越大,其抗压缩疲劳性能越好;在一定范围内,随着织物厚度的增加,织物的抗压缩疲劳性能增强。

Three-dimensional automobile cushion were designed and prepared to study compression fatigue resistance. Spun polysulfonamide yarn was chosen to weave surface layers and polyvinylidene fluoride filament to weave spacer structure. Four kinds of weave structures were designed based on different combinations of plain, hexagonal and diamond weave. And the thicknesses was adjusted on the basis of one structure. Six kinds of samples with different layers and thickness were designed and the compressive properties of the samples were tested. Then, compression fatigue resistance curve and damage pattern were analyzed and compared, and the relevant parameters influencing the compression properties were studied. The result shows that the denser the surface structure is, the better the fixation of spacing filaments, and the heavier load the fabric will support, and the better the compressive properties and in a certain range, the greater the thickness is, the better compressive properties.