By means of oxidation themal gravity (TG) on new ribbon-shaped mesophase pitch-based fibers,its system of increasing temperature in thermal-oxidized stabilization process was estabilished.
通过分析 带形截面中间相沥青基纤维的氧化热失重图,确定其不熔化阶段升温制度。
It is also found that the velocity of pitch stabilization process is increased.
研究了添加对甲苯磺酸对沥青不熔化处理的影响 ,试验发现对甲苯磺酸的加入促进了沥青的分解以及沥青与氧的结合 ,加速了沥青不熔化的过程。
The oxidative stabilization of pitch spheres from coal tar and petroleum pitch, respectively, was studied by TGA (Thermal Gravimetric Analysis), DTG (Different Thermal Gravimetry) and DTA (Different Thermal Analysis).
结果表明：石油沥青球由于与氧气的反应活性较强，更难于不熔化；增加萘含量和提高原沥青的软化点有利于沥青球的不熔化。
Study on Curing of Polycarbosilane Fibers (III)—Air-Curing Mechanism;
聚碳硅烷纤维的不熔化处理研究(III)——不熔化机理的探讨
Study on Curing of Polycarbosilane Fibers (I)Weight Gain and kinetics Calculation During Curing Reaction;
聚碳硅烷纤维不熔化处理的研究(Ⅰ)反应过程的增重及其动力学计算
The influence of curing time at 190℃ on the weight gain, Si-H bond reaction degree, gel content, and oxygen content of PCS fiber was investigated.
以聚二甲基硅烷(PDMS)为原料,在高压釜内高温高压反应制备了聚碳硅烷(PCS)先驱体,经熔融纺丝制备了PCS纤维,研究了在190℃下不同不熔化时间对PCS纤维氧化增重、Si-H键反应程度、凝胶含量、氧含量及最终SiC纤维氧含量与性能的影响。
In the paper, two common types of heattreatment furnaces (vertical curing furnace and tunnel curing furnace) were studied as influence factors on the uniformity of polycarbosilane fibers.
讨论了陶瓷纤维不熔化处理中常用的两种热处理炉(垂直式不熔化炉和隧道窑式不熔化炉)对聚碳硅烷(PCS)纤维不熔化均匀性的影响。