碳纤维增强硅橡胶复合材料制备.doc

碳纤维增强硅橡胶复合材料制备 武卫莉1,2,*，王骏1 齐齐哈尔大学 材料科学与工程学院,齐齐哈尔 161006； （2.黑龙江省高校聚合物复合改性重点实验室,齐齐哈尔 161006) 摘 要：由于硅橡胶碳纤维作为材料。扫描电镜(SEM)。结果显示材料最佳配方为 100份， 12份，KH-550 2.5扫描电镜，关键词：材料；；碳纤维；Wei-li 1,2,*, WANG Jun 1 ( 1. College of Materials Science and Engineering, Qiqihar University, Qiqihar 161006, China; 2. Key Laboratory of Polymer Composition and Modification, College of Heilongjiang Province, Qiqihar 161006, China ) Abstract: Because the silicon rubber has better heat resistance but its mechanical properties are relatively poor. In this paper, the high-performance carbon fiber (CF) was used as a reinforcement, the silicone rubber (MVQ) as the matrix, and coupling agent as a compatilizer, prepared carbon fiber/rubber composite materials. The content of carbon fiber was determined by testing the mechanical and thermal properties. The effect of coupling agent on the compatibility between rubber and carbon fiber was studied by using as a compatilizer. The crosslinking structure and compatibility of the carbon fiber and rubber were analyzed by Fourier Transform Infrared Spectrometer（FTIR) and scanning electron microscope (SEM). The results show that the formula obtained best mechanical properties is 100 份 , 12 份 carbon fiber, and 2.5 份 KH-550. The best curing conditions for carbon fiber reinforced silicon?rubber are at 175 ℃ under 1 MPa for 30 min. And further demonstrates that compatibility of carbon fiber treated with KH550 is better than no treatment and treated with Si69, with which silicone rubber mix by SEM and IR analysis. Keywords: Composite materials; silicone rubber; Carbon fiber; Preparation 橡胶具有良好的回弹性、绝缘性、隔水性耐屈挠性等特性碳纤维具有高强、高模、低伸长、耐磨性橡胶复合材料的复合材料。 图 1 碳纤维/硅橡胶复合材料的制备过程 表 1 样品制备的基本配方 （质量份） 硅橡胶 碳纤维 白炭黑 DCP 硬脂酸 防老剂D 促进剂M 三氧化二铁 100① 12 20 5 1 1 1 1 ① 份: 1.3 性能测试 邵尔A型硬度用邵尔硬度计按GB/T531-1999测定。拉伸强度的测试按GB /T528—2009测定。热老化性能的测试按GB 3512-2001测定。磨耗测试按GB—1998进行。耐热老化性能GB/T3512-20