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一、引言随着我国碳纤维的生产、研究、应用的发展,在要求较多数量的同时,对碳纤维的质量也提出了更高的要求。为此,我们于一九七六年开展了高强度Ⅰ型连续碳纤维的研制工作。本工作内容是:以吉林化工研究院硝酸一步法纺制的聚丙烯腈纤维为原料,以空气氧化法为基础,在保证一定原纤维质量及预氧化条件下通过改变碳化过程中惰性保
I. INTRODUCTION With the development of carbon fiber production, research and application in our country, more requirements on the quality of carbon fiber have been put forward at the same time. To this end, we started the development of a high-strength type I continuous carbon fiber in 1976. The content of this work is: taking polyacrylonitrile fiber spinning by nitric acid one-step method from Jilin Chemical Industry Research Institute as raw material, based on air oxidation method, under the condition of guaranteeing certain fibril quality and pre-oxidation,