文献类型：期刊文献

中文题名：高碳酚醛树脂及其复合材料的炭化性能演变

英文题名：EVOLUTION OF CARBONIZATION PERFORMANCE OF HIGH CARBON PHENOLIC RESIN AND ITS COMPOSITES

作者：束长朋[1];杨鹏翱[2];施正堂[2];周权[1];吴爱椿[1];顾澄中[1];倪礼忠[1]

机构：[1]华东理工大学特种功能高分子材料及其相关技术教育部重点实验室,上海200237;[2]浙江亚太机电股份有限公司,浙江311203

年份：2019

期号：3

起止页码：76

中文期刊名：玻璃钢／复合材料

外文期刊名：Fiber Reinforced Plastics/Composites

收录：北大核心:【北大核心2017】；

语种：中文

中文关键词：高碳酚醛树脂;炭化性能;C/C复合材料;孔隙率

外文关键词：high carbon phenolic resin;carbonization performance;C/C composite;porosity

摘要：碳纤维增强酚醛树脂基复合材料是制备C/C复合材料的前驱体,但是目前所应用的酚醛树脂残炭率较低,浸渍炭化周期过长,工艺成本过高,限制了C/C复合材料在民用领域的大规模应用。因此,研究新型的高碳酚醛树脂及其作为基体的复合材料在炭化过程中的性能演变情况,可以有效促进酚醛树脂在C/C复合材料生产中的应用。本文探究了高碳酚醛树脂及其复合材料的炭化性能,研究了高碳酚醛树脂的结构、固化、耐热性,对高碳酚醛树脂及其碳纤维增强复合材料的炭化后性能进行了研究。研究结果表明:高碳酚醛树脂具有较普通酚醛树脂更高的残炭率;当炭化温度过高时,会出现无规则的非晶态的碳颗粒,影响材料的有序性、显气孔率等。在1000℃下炭化,会得到较为优异的孔隙率,利于后续制备工艺的进行。
As one of the precursors for the preparation of C/C composites,carbon fiber reinforced phenolic resin matrix composites have been widely used in almost every aspect of modern industry nowadays. Studying the carbonization performance of a novel high-carbon phenolic resin and its composites can effectively promote the production and application C/C composites. We investigated the carbonization properties of high carbon phenolic resin and its composites under different temperatures. It shows that high carbon phenolic resin has the same structure as normal phenolic resin. At 199 ℃,the solidification of high carbon phenolic resin can reach the fastest rate. TGA test result shows that this resin has higher carbon residue rate at 1000 ℃ in N2. The carbonization properties of this resin and its carbon fiber reinforced composites were also studied. The results show that high carbon phenolic resin has a higher residual carbon ratio than the ordinary phenolic resin. Only when the temperature exceeds 1000 ℃,the carbonization process of this resin can be fully carried out. However,when the carbonization temperature is too high,the decomposed same carbon particles will deposit into larger one. Of course,these particles contains only a very small amount of graphite grains,and most of them are amorphous and irregular. Similarly,when it comes to its composites,the large particles produced at higher temperatures will influence the contents of apparent and closed porosities in composites. When the composites are carbonized under 1000 ℃,they can obtain the best apparent porosities. This is benefit for their subsequent processes.