磷酸处理对三维编织芳纶纤维/双马来酰亚胺力学性能的影响  

EFFECT OF PHOSPHORIC ACID SURFACE TREATMENT ON MECHANICAL PROPERTIES OF 3D-BRAIDED KEVLAR FIBER REINFORCED BISMALEIMIDE

作　　者：贾志刚[1] 王玉林[1] 万怡灶[1] 

机构地区：[1]天津大学复合材料研究所,天津300072

出　　处：《玻璃钢／复合材料》2004年第6期20-21,47,共3页Fiber Reinforced Plastics/Composites

基　　金：天津市科技发展计划项目 (0 1 31 1 1 71 1 )

摘　　要：本文采用RTM工艺制备了三维编织芳纶纤维增强双马来酰亚胺复合材料 ,并考察了磷酸处理芳纶纤维对复合材料界面结合及力学性能的影响。结果表明 ,磷酸处理能增加纤维表面活性官能团含量 ,改善纤维与基体间的界面结合 ,提高复合材料的弯曲、剪切和冲击性能。Resin transfer molding technique was used to prepare 3D-braided kevlar fiber reinforced bismaleimide composites. Surface properties of Kevlar fiber modified with phosphoric acid were studied. Effect of phosphoric acid treatment on fiber-matrix bonding was evaluated. Air-oxidized fibers showed an improvement in the amount of oxygen-containing groups. The fiber-matrix bonding was strengthened and therefore the flexural strength, shear strength and impact strength of the composites were improved.

关 键 词：三维编织 芳纶纤维 双马来酰亚胺 

分 类 号：TB332[一般工业技术—材料科学与工程]