采用聚二甲基硅烷(PDMS)与不同比例的聚氯乙烯(PVC)共裂解合成制备富碳Si-C-O纤维先驱体聚合物.经熔融纺丝制成聚合物原丝。通过热分析、红外光谱研究了聚合物原丝的空气不熔化处理机理。结果表明:聚合物原丝的不熔化机理与纤维的组成有关。考察了不熔化温度、时间及升温速率等因素对纤维不熔化处理的影响。
The precursor polymers which were prepared by means of thermal rearrangement reaction of Polyvinylchloride(PVC) and Polydimethysilane(PDMS) were melt-spun and cured in air. The stabilization mechanism was studied by TG, DTA and IR. The stabilization process of green fibers were related to the structure of fibers. The influence factors, such as stabilization temperature, stabilization time and heat rising rate, were researched as well.
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