摘要
为了提升装配式建筑用纤维复材的力学性能,采用双螺杆挤出机制备了4种不同组分的纤维复材层压板,对比分析了Ti/CF/PA6、Ti/GB/CF/PA6、Ti/nano-CaCO_(3)/CF/PA6、Ti/GB/nano-CaCO_(3)/CF/PA6的剪切性能、弯曲性能和冲击性能,并观察了断口形貌。结果表明,在Ti/CF/PA6中单独加入GB或nano-CaCO_(3),以及复合加入GB和nano-CaCO_(3)都会提升复合材料的剪切强度,且单独加入nano-CaCO_(3)后复合材料的剪切强度最大。在Ti/CF/PA6中单独加入GB或nano-CaCO_(3)会降低复合材料的弯曲强度,而单独加入nano-CaCO_(3)会提升复合材料的弯曲强度。在Ti/CF/PA6中单独加入GB或nano-CaCO_(3),以及复合加入GB和nano-CaCO_(3)都会提升复合材料的冲击强度,且复合加入GB和nano-CaCO_(3)后复合材料的冲击强度最大。单独加入nano-CaCO_(3)或者复合加入GB和nano-CaCO_(3)后复合材料具有良好的力学性能,可以在装配式建筑结构材料中应用。
In order to improve the mechanical properties of fiber composites for prefabricated buildings,four kinds of fiber composite laminates with different components were prepared by using a twin-screw extrusion mechanism,the shear properties,bending properties and impact properties of Ti/CF/PA6、Ti/GB/CF/PA6、Ti/nano-CaCO_(3)/CF/PA6 and Ti/GB/nano-CaCO_(3)/CF/PA6 were compared and analyzed,and the fracture morphology was observed.The results showed that adding GB or nano-CaCO_(3)to Ti/CF/PA6 alone,as well as the addition of GB and nano-CaCO_(3)together,increased the shear strength of the composite,and the shear strength of the composite material was the highest when nano-CaCO_(3)was added alone.Adding GB or nano-CaCO_(3)to Ti/CF/PA6 alone reduced the flexural strength of the composite,while addition of nano-CaCO_(3)alone increased the flexural strength of composites.Adding GB or nano-CaCO_(3)to Ti/CF/PA6 alone,as well as the addition of GB and nano-CaCO_(3)together,increased the impact strength of the composite,and the impact strength of the composite material was the highest when GB and nano-CaCO_(3)were added together.After adding nano-CaCO_(3)alone or the combination of GB and nano-CaCO_(3),the composites have good mechanical properties and can be applied in prefabricated building structural materials.
作者
罗天贵
LUO Tiangui(Power China Road Bridge Group Co.,Ltd.,Dongying 257091,Shandong China)
出处
《粘接》
2025年第7期60-63,共4页
Adhesion
关键词
装配式建筑
纤维复材
颗粒增强
力学性能
断口形貌
prefabricated buildings
fiber composite materials
particle enhancement
mechanical properties
fracture morphology
