针辊轧孔方式对硬质聚氨酯泡沫夹芯结构剥离性能的研究及应用  

Research and application of needle roller hole method on peeling properties of rigid polyurethane foam sandwich structure

作　　者：姚中强 唐鹏飞 顾育慧 李军向 YAO Zhongqiang;TANG Pengfei;GU Yuhui;LI Junxiang(Mingyang Smart Energy Group Limited,Zhongshan 528400,China)

机构地区：[1]明阳智慧能源集团股份公司,中山528400

出　　处：《复合材料科学与工程》2023年第8期112-114,共3页Composites Science and Engineering

摘　　要：以不同表面加工方式的硬质聚氨酯(PU)泡沫为研究对象,以滚筒剥离强度表征泡沫与面板的结合性能,以加工便利性评估其在大尺寸、异形面泡沫表面批量实施的可能性,以加工方式对树脂耗量的增加量评估其综合成本优劣性。测试表明多轴机床加工浅槽、刀片切深缝、针辊轧孔等方式均能改善聚氨酯(PU)泡沫夹芯复合材料的滚筒剥离强度,使用针辊轧孔的方式在剥离性能提升、加工便利性及树脂耗量方面较其他加工方式具有明显优势。此研究内容对较大尺寸且加工面为异形面的聚氨酯(PU)泡沫剥离强度的提升有很好的加工指导意义。In order to verify the method of improving the peel strength when the large-sized,shaped-surface rigid polyurethane(PU)foam is used as the core foam,the rigid polyurethane(PU)foam with different surface processing methods is used as the research object,and the roller peel strength is used to characterize the bonding performance of the foam and the panel,the possibility of batch implementation on the surface of large-sized and special-shaped foam is evaluated by the convenience of processing,and the comprehensive material cost is evaluated by the increase of resin consumption in the processing method.Tests show that multi-axis machine tools can improve the peel strength of polyurethane(PU)foam sandwich composites by processing shallow grooves,blade deep slits,needle roll holes,etc.The method of using needle roll holes can improve the peel strength and process⁃ing.It has obvious advantages over other processing methods in terms of ease of operation and material cost.This re⁃search content has a good guiding significance for the improvement of the peel strength of polyurethane(PU)foams with larger sizes and special-shaped surfaces.

关 键 词：PU泡沫 异形加工面 剥离强度 复合材料 

分 类 号：TB332[一般工业技术—材料科学与工程]