高温碳化温度对碳纤维性能的影响  

The effects of high temperature carbonization temperature to carbon fiber performence

作　　者：王文胜[1] 孙海英[1] 张贵[2] 宋云飞[1] 

机构地区：[1]中国石油吉林石化公司研究院,吉林吉林132021 [2]中国石油吉林石化公司染料厂,吉林吉林132021

出　　处：《化工科技》2014年第6期12-13,共2页Science & Technology in Chemical Industry

基　　金：中国石油科技管理部基金项目(7C-12C088)

摘　　要：对经过相同预氧化、低温碳化和不同高温碳化处理的碳纤维样品进行了拉伸强度、拉伸模量、密度的分析,找出了2种原丝在经过碳化工艺处理后拉伸强度、拉伸模量、密度与高温碳化温度的相关性,并对其影响机理进行了研究。研究结果表明:在一定的温度范围内碳纤维拉伸强度随着高温碳化温度的提高而增加,在高温碳化温度达到一定值时,碳纤维拉伸强度将下降;碳纤维拉伸模量均随着高温碳化温度的提高而增加;碳纤维密度均随着高温碳化温度的提高而降低。By analysing the tensile strength, tensile modulus and denisty of carbon fiber sample produced by the same preoxidation and low temperature carbonization condition and with different high temperature carbonization processing, we found out that the tensile strength,tensile modulus, density of two kind of precursor of Jilin Petrochemical Company after carbonization processing, are related to the high temperature carbonization temperature, and studied the influence mechanism. The results showed that within a certain range,with increasing of high temperature carbonization temperature,the tensile strengh of carbon fiber will increase. When high temperature of carbonization reaches a certain value,the tensile strengh of carbon fiber will decline. With the increase of high temperature carbonization temperature,carbon fiber tensile modulus will increase and carbon fiber density will reduce.

关 键 词：碳纤维 高温碳化温度 拉伸强度 拉伸模量 密度 

分 类 号：TQ342[化学工程—化纤工业]