低温等离子体预处理对混杂纤维复合材料性能的影响  

Effect of low-temperature plasma pretreatment on mechanical properties of hybrid fiber-reinforced composites

作　　者：文爱诗 何素萍 潘浩津 KEHINDE Olonisakin 杨越飞 杨文斌[1] WEN Aishi;HE Suping;PAN Haojin;KEHINDE Olonisakin;YANG Yuefei;YANG Wenbin(College of Material Engineering,Fujian Agriculture and Forestry University,Fuzhou,Fujian 350002,China;Fujian Huaxiangyuan Tea Co.,Ltd,Xiamen,Fujian 361009,China;Xiamen Products Quality Supervision&Inspection Institute,Xiamen,Fujian 361000,China)

机构地区：[1]福建农林大学材料工程学院,福建福州350002 [2]福建华祥苑茶业股份有限公司,福建厦门361009 [3]厦门市产品质量监督检验院,福建厦门361000

出　　处：《福建农林大学学报（自然科学版）》2023年第3期423-428,共6页Journal of Fujian Agriculture and Forestry University:Natural Science Edition

基　　金：福建华祥苑茶业有限公司资助项目(KH210200A);福建省科技厅自然科学基金面上项目(2020J01579);国家科技项目备案(2022L3006);福建省林业科技项目[闽林科(2020)29号]。

摘　　要：为了提高纤维与基体不饱和聚酯界面的结合强度,利用低温等离子体技术对纤维表面进行预处理,探讨了低温等离子体预处理对混杂纤维(亚麻纤维与玄武岩纤维)复合材料性能的影响.SEM分析表明,改性后的玄武岩纤维、亚麻纤维表面与基体界面之间的结合强度增大.FTIR分析表明,低温等离子体预处理产生的-C-OH、-C-O、-COOH和-COO-含氧基团提高了纤维与基体之间界面的结合强度.力学测试试验结果表明,PB/F、PB/PF和B/PF的弯曲和冲击性能明显提高,B/PF的弯曲强度比未处理的B/F提高40.5%,PB/PF、B/PF的冲击韧性比B/F提高116%.混杂纤维复合材料表现出较好的弯曲和冲击性能.To improve the interface bonding strength between fiber and matrix unsaturated polyester,the surface of hybrid fiber-reinforced composites,mainly made up of basalt fiber and flax fiber,was pretreated by low-temperature oxygen plasma,and the effect on its mechanical properties was further discussed.Scanning electron microscopy showed enhanced binding capacity between the surface of modified basalt/flax composites and matrix polyesters.Fourier transform infrared(FTIR)spectroscopy verified that this strengthened bonding capacity was mainly due to the synthesis of 4 oxygen-containing groups,-C-OH,-C-O,-COOH and-COO-,after the treatment,resulting in enhanced compatibility between the hybrid composites and matrix surface.Mechanical tests showed significantly higher bending property and impact property of plasma-treated basalt/flax composites(PB/F),plasma-treated basalt/plasma-treated flax composites(PB/PF)and basalt/plasma-treated flax composites(B/PF),resulting in 40.5%greater bending strength in B/PF and 116%higher impact toughness in PB/PF or B/PF compared with the untreated ones.Overall,the modified composite material showed improved bending property and impact property.

关 键 词：界面结合强度 等离子体 不饱和聚酯 玄武岩纤维 亚麻纤维 

分 类 号：TU531.3[建筑科学—建筑技术科学]