The supply of Rayon based CF can not meet the demand of our country.From the standpoint of techno economics, the factors limiting the development of Rayon based CF were analyzed and summarized.

• 从技术经济角度分析其发展的制约因素,原丝质量制约其产品性能,投资比较大、成本较高,生产研究的投入不足制约其发展。