摘要
为定量了解Vectran纤维的耐酸碱性能,为其实际应用提供必要的理论参考,采用硫酸和氢氧化钠溶液对其进行了处理,并测试处理前后纤维的失重率、断裂强度和表面形貌的变化。结果表明,酸碱处理后,Vectran纤维的质量损失率相差不大,只有在浓硫酸中纤维的腐蚀情况比较严重;拉伸试验中,Vectran长丝的强力受酸碱处理的影响不大,只有浓硫酸对其有致命的影响;SEM显示酸碱处理使Vectran纤维表面产生纵向沟槽,沟槽的密度和深度与酸碱的浓度和处理时间有关,其中硫酸的处理效果更为明显。
In order to study Vectran fiber＇s ability to resist acid and alkali and. provide necessary information for its application, sulfuric acid and sodium hydroxide with different concentration were chosen to process Vectran fi- ber. After that, the fiber＇s weight loss, breaking strength and superficial morphology were tested. The results re- vealed that the difference of weight loss between sulfuric acid and sodium hydroxide process was very little, only concentrated sulfuric acid could cause a very serious corrosion on the fiber＇s surface ; the breaking strength of Vect- ran filament wasn＇t affected a lot by the sulfuric acid and sodium hydroxide, only the concentrated sulfuric acid could damage the fiber; SEM showed the sulfuric acid and sodium hydroxide ＇s process led the surface of Vectran fi- ber to generate longitudinal grooves, the density and depth of these grooves related to the sulfuric acid and sodium hydroxide＇s concentration and the process time and the process of sulfuric acid could cause a more obvious superfi- cial damage.
出处
《玻璃钢／复合材料》
CAS
CSCD
北大核心
2014年第3期27-31,共5页
Fiber Reinforced Plastics/Composites
基金
国家科技支撑计划(2011BAE10B00)
中央高校基本科研业务费专项资金项目(13D110126)
