内衬聚偏氟乙烯热塑层的纤维缠绕复合材料管径向平压性能

发布时间：2018-09-08 15:47

【摘要】：纤维缠绕角度、纤维缠绕层厚度及碳/玻纤维混杂比是影响内衬聚偏氟乙烯(PVDF)热塑层的纤维增强热固性复合材料缠绕管径向平压性能的重要因素,其性能直接决定复合材料缠绕管产品掩埋深度和抗碾压能力。将PVDF颗粒经挤出机制成PVDF管,然后以表面喷砂处理后的PVDF管为内衬芯管,采用湿法缠绕技术制备不同结构参数的复合材料缠绕管。利用管平行板外载平压性能测试方法,测试了3种结构参数对复合材料管径向平压性能的影响,并分析其破坏模式与失效机理。结果表明,随缠绕层厚度的增加,径向压缩强度和径向压缩模量逐渐增大;随着缠绕角度的增大,径向压缩强度和径向压缩模量先增大后减小;另外,随着碳/玻纤维混杂比的提高,复合材料缠绕管的压缩强度和压缩模量相应增加。
[Abstract]:The angle of filament winding, the thickness of filament winding layer and the ratio of carbon to glassy fiber are the important factors that affect the radial pressure performance of the fiber reinforced thermosetting composite pipe lined with polyvinylidene fluoride (PVDF) thermoplastic layer. Its performance directly determines the buried depth and rolling resistance of composite wound pipe. The PVDF particles were made into PVDF tubes by extruder, and then the PVDF tubes with surface sand blasting were used as inner liners, and the composite wound tubes with different structure parameters were prepared by wet winding technique. In this paper, the influence of three structural parameters on the diametral flat compressive properties of composite pipe was tested by using the test method of the lateral load of the tube parallel plate, and the failure mode and failure mechanism of the composite pipe were analyzed. The results show that the radial compression strength and the radial compression modulus increase gradually with the increase of the thickness of the winding layer, the radial compression strength and the radial compression modulus increase first and then decrease with the increase of the winding angle. With the increase of carbon / glassy fiber hybrid ratio, the compression strength and compression modulus of the composite wound tube increase accordingly.
【作者单位】：天津工业大学先进纺织复合材料教育部重点实验室;天津工业大学复合材料研究所;威海光威复合材料有限公司;
【基金】：国家高技术研究发展计划(863计划)项目(2012AA03A201) 天津市高等学校科技发展基金计划项目(2012ZD 02) 天津市科技计划项目(13TXSY JC 40500)
【分类号】：TB332

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