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A platform for research: civil engineering, architecture and urbanism
Preparation method of high-temperature-resistant antioxidant BNf/SiBN wave-transparent composite material and product thereof
The invention discloses a preparation method of a high-temperature-resistant antioxidant BNf/SiBN wave-transparent composite material and a product thereof, and belongs to the technical field of preparation of high-temperature wave-transparent composite materials. The preparation method comprises the following steps: carrying out degumming treatment on a BN prefabricated body to serve as a reinforcement body, taking polyborosilazane as a precursor, and obtaining a BNf/SiBN prefabricated body by adopting a dipping-cracking process; and repeating a dipping-cracking process on the BNf/SiBN preform for multiple times, then putting the BNf/SiBN preform into a cracking furnace, vacuumizing and drying to obtain the high-temperature-resistant antioxidant BNf/SiBN wave-transparent composite material. The method is safe in process, low in preparation temperature and small in fiber damage and has the unique near-net forming advantage.
本发明公开了一种耐高温抗氧化BNf/SiBN透波复合材料的制备方法及其产品，属于高温透波复合材料制备技术领域。本发明将BN预制体进行排胶处理后作为增强体，以聚硅硼氮烷为先驱体，采用浸渍—裂解工艺，得到BNf/SiBN预制体；将所述BNf/SiBN预制体重复多次浸渍—裂解工艺，然后放进裂解炉内，抽真空，烘干，得到耐高温抗氧化BNf/SiBN透波复合材料。该方法工艺安全，制备温度较低，对纤维损伤小，并且具有独特的近净成型优势。
Preparation method of high-temperature-resistant antioxidant BNf/SiBN wave-transparent composite material and product thereof
The invention discloses a preparation method of a high-temperature-resistant antioxidant BNf/SiBN wave-transparent composite material and a product thereof, and belongs to the technical field of preparation of high-temperature wave-transparent composite materials. The preparation method comprises the following steps: carrying out degumming treatment on a BN prefabricated body to serve as a reinforcement body, taking polyborosilazane as a precursor, and obtaining a BNf/SiBN prefabricated body by adopting a dipping-cracking process; and repeating a dipping-cracking process on the BNf/SiBN preform for multiple times, then putting the BNf/SiBN preform into a cracking furnace, vacuumizing and drying to obtain the high-temperature-resistant antioxidant BNf/SiBN wave-transparent composite material. The method is safe in process, low in preparation temperature and small in fiber damage and has the unique near-net forming advantage.
本发明公开了一种耐高温抗氧化BNf/SiBN透波复合材料的制备方法及其产品，属于高温透波复合材料制备技术领域。本发明将BN预制体进行排胶处理后作为增强体，以聚硅硼氮烷为先驱体，采用浸渍—裂解工艺，得到BNf/SiBN预制体；将所述BNf/SiBN预制体重复多次浸渍—裂解工艺，然后放进裂解炉内，抽真空，烘干，得到耐高温抗氧化BNf/SiBN透波复合材料。该方法工艺安全，制备温度较低，对纤维损伤小，并且具有独特的近净成型优势。
Preparation method of high-temperature-resistant antioxidant BNf/SiBN wave-transparent composite material and product thereof
一种耐高温抗氧化BNf/SiBN透波复合材料的制备方法及其产品
WANG XINYU (author) / XIA LONG (author) / WANG YUANSHUAI (author) / ZHANG YANXIN (author) / WANG YI (author) / XING LIZHE (author) / YONEZAWA IZUMI (author) / YANG BIN (author) / SHEN HUICHENG (author) / SHAO CHANGTAO (author)
2024-06-25
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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