Friction spun core yarn has two components: filament core and staple fiber sheath. Under axial rubbing action, the failure mode of the core yarn is the stripping of the sheath from the core. This paper introduces a me...Friction spun core yarn has two components: filament core and staple fiber sheath. Under axial rubbing action, the failure mode of the core yarn is the stripping of the sheath from the core. This paper introduces a method to test the anti - stripping property of the core yarn. With a modified Universal Testing Machine, the stripping resistance of friction spun core yarn can be continuously measured. Some factors Influencing the measurements are discussed in detail. The testing results are compared with those from a Y731 Yarn Abrasion Tester and fur - ther confirmed by weaving practice.展开更多
以本征机械性能良好的溶胶-凝胶酸催化SiO2和TiO2薄膜为基础,设计并制备了具有高透过率和良好机械性能的λ/4-λ/4 Si O2/Si O2-TiO2双层增透膜.所得薄膜在中心波长处的峰值透过率达到99.9%,与设计膜层的透过率曲线高度吻合.经耐摩擦和...以本征机械性能良好的溶胶-凝胶酸催化SiO2和TiO2薄膜为基础,设计并制备了具有高透过率和良好机械性能的λ/4-λ/4 Si O2/Si O2-TiO2双层增透膜.所得薄膜在中心波长处的峰值透过率达到99.9%,与设计膜层的透过率曲线高度吻合.经耐摩擦和黏附性测试后,该双层增透膜峰值透过率基本保持不变,硬度高达4H,表明其具有良好的机械性能.水表面接触角测试结果显示该双层增透膜具有超亲水性,表现出良好的冷/热防雾效果.展开更多
文摘Friction spun core yarn has two components: filament core and staple fiber sheath. Under axial rubbing action, the failure mode of the core yarn is the stripping of the sheath from the core. This paper introduces a method to test the anti - stripping property of the core yarn. With a modified Universal Testing Machine, the stripping resistance of friction spun core yarn can be continuously measured. Some factors Influencing the measurements are discussed in detail. The testing results are compared with those from a Y731 Yarn Abrasion Tester and fur - ther confirmed by weaving practice.
文摘以本征机械性能良好的溶胶-凝胶酸催化SiO2和TiO2薄膜为基础,设计并制备了具有高透过率和良好机械性能的λ/4-λ/4 Si O2/Si O2-TiO2双层增透膜.所得薄膜在中心波长处的峰值透过率达到99.9%,与设计膜层的透过率曲线高度吻合.经耐摩擦和黏附性测试后,该双层增透膜峰值透过率基本保持不变,硬度高达4H,表明其具有良好的机械性能.水表面接触角测试结果显示该双层增透膜具有超亲水性,表现出良好的冷/热防雾效果.