[1]辛世煊.连续碳化硅长丝纤维生产技术现状[J].中国材料进展,2014,(5):051-56.[doi:10.7502/j.issn.1674-3962.2014.05.07]
　Shixuan Xin.Current Technologic state of continuous silicon carbide filament[J].MATERIALS CHINA,2014,(5):051-56.[doi:10.7502/j.issn.1674-3962.2014.05.07]
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连续碳化硅长丝纤维生产技术现状()
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中国材料进展[ISSN:1674-3962/CN:61-1473/TG]

卷:
期数:
2014年第5期
页码:
051-56
栏目:
前沿综述
出版日期:
2014-05-31

文章信息/Info

Title:
Current Technologic state of continuous silicon carbide filament
作者:
辛世煊
中国石油天然气股份有限公司石油化工研究院 中国石油天然气集团公司合成树脂重点实验室
Author(s):
Shixuan Xin
PetroChina Petrochemical Research Institute

PetroChina Sythetic Rsesin Key Laboratories

关键词:
β-碳化硅（β-SiC）; 连续碳化硅长丝纤维（SiCF）; 聚硅烷(PS); 聚炭硅烷(PCS);  高温热解
DOI:
10.7502/j.issn.1674-3962.2014.05.07
文献标志码:
A
摘要:
连续炭化硅长丝纤维是目前具有最高比强度和最高比模量，以及高热稳定性的人造纤维。连续炭化硅长丝纤维生产技术发展经历了从高含氧量到超低含氧量，从微量元素参杂到复合连续炭化硅长丝纤维材料的几个关键技术阶段。本文重点探讨连续炭化硅长丝纤维生产的四个关键技术工艺过程：即有机硅烷小分子单体经化学或催化聚合形成有机聚硅烷（PS）的聚合过程；PS的粘溶液或熔浆在惰性气氛中机械纺丝制造PS原丝的工艺过程；PS原丝经过在惰性化学气氛中控温化学转化形成聚炭硅烷（PCS）纤维及同时发生交联的热化学转化过程；最后PCS纤维在惰性以及/或者反应性气氛中高温热交联结晶化形成终烧炭化硅（SiC）纤维的高温热化学转化过程。熟悉并完全掌握每一个工艺过程的技术关键，才能有效选择合适的工艺技术，选择适当的工程技术生产装备，生产出高强度高模量连续炭化硅长丝纤维，为我国航空航天以及高端制造业提供高品质炭化硅连续长丝纤维材料资源。
Abstract:
It is believed that the continuous silicon carbide filament is so far an artificial fiber that has highest tensile strength and the highest tensile modulus， as well as very high thermostability. Its production technology passed from high oxygen content to ultra-low oxygen content, and from trace element composites to multiple elements composites, several key progressive periods. This article focuses mainly on the four key processes of continuous silicon carbide (SiC) filament production technology. These are: the chemical or catalytic process that converting organosilane monomer into organo-polysilane (PS); the process of converting a viscous PS solution or molten PS into long and dry fibers，i.e filament fabrication; the process that converting the original PS filament into polycarbosialne (PCS) in an inert and/or chemical vapor environment under controlled temperatures; and finally the high temperature thermochemical cross-linking process of converting the PCS filament into highly crystalline SiC filament in an inert and/or chemical vapor environment under high temperature program. It is obvious that only if one could completely familiar with and rigorously grasp these key processes, one would be able to effectively select a suitable technical processes, to choose or create suitable manufactureing facilities, and therefore to be able to produce high strength and high modulus continuous silicon carbide filament. And then one would be able to provide high quality source of continuous silicon carbide filaments for the nation’s aero and space, as well as high performance manufacturing industries.
更新日期/Last Update: 2014-06-06