刮涂型人工脱粘层的力学和烧蚀性能研究  

Research on the Mechanical and Ablation Properties of Scratchable Stress Release Materials

作　　者：李洋[1,2] 陈雁彬 胡俊杰 吴谦秋 黄海龙 LI Yang;CHEN Yanbin;HU Junjie;WU Qianqiu;HUANG Hailong(Hubei Institute of Aerospace Chemotechnology,Xiangyang 441003,Hubei,China;National Key Laboratory of Aerospace Chemical Power,Xiangyang 441003,Hubei,China)

机构地区：[1]湖北航天化学技术研究所,湖北襄阳441003 [2]航天化学能源全国重点实验室,湖北襄阳441003

出　　处：《材料导报》2025年第10期237-241,共5页Materials Reports

基　　金：湖北省科技厅技术攻关项目(2023BAA004);湖北省自然科学基金联合基金项目(2022CFD088)。

摘　　要：为提高人工脱粘层的成型效率,期望设计一种可刮涂成型的人工脱粘材料。为此,研究了碳纤维粉、聚酰亚胺纤维、芳纶浆粕对端羧基液体丁腈橡胶(CTBN)基复合材料力学和烧蚀性能的影响。结果发现,添加适量碳纤维粉能够将复合材料的拉伸强度由3.97 MPa提升至4.54 MPa,材料的耐烧蚀性能也有一定的提高;添加聚酰亚胺纤维虽然能够将材料的氧乙炔线烧蚀率由0.292 mm/s降低至0.151 mm/s,但力学性能有明显的下降;而添加芳纶浆粕能够大幅提升烧蚀性能同时保留材料良好的力学性能。进一步地,添加0.9 phr芳纶浆粕的CTBN基复合材料的拉伸强度为3.96 MPa、断裂伸长率为144%、烧蚀率为0.165 mm/s、与EPDM基复合材料的粘接强度为1.80 MPa,且可刮涂成型,具备作为刮涂型人脱层的潜力。To enhance the efficiency of stress release layer formation,a novel scratchable composite is devised to develop the stress-release material.Herein,the effects of carbon fiber powder,polyimide fiber,and aramid pulp on the mechanical and ablation properties of CTBN-based composites are studied.It is found that the addition of carbon fiber powder can increase the tensile strength of the composites from 3.97 MPa to 4.54 MPa,and the ablation resistance of the composites is also improved to a certain extent.In addition,the addition of polyimide fiber can reduce the line ablation rate of the composites from 0.292 mm/s to 0.151 mm/s,but the mechanical properties are also significantly reduced.Moreover,the addition of aramid pulp can greatly improve the ablation performance while retaining the most mechanical properties of the composites.Furthermore,with 0.9 phr aramid pulp added,the CTBN-based composites maintain the tensile strength of 3.96 MPa,the elongation at break of 144%,the ablation rate of 0.165 mm/s,and the tear strength from EPDM-based composites of 1.80 MPa,and can be formed through scrape coating,which is a potential candidate for the scratchable stress release materials.

关 键 词：人工脱粘层 端羧基液体丁腈橡胶(CTBN) 力学性能 烧蚀性能 

分 类 号：TQ333.7[化学工程—橡胶工业]