SBIR Phase I: Photo-Curable Silicon Oxycarbide Fiber for Diesel Engine Particulate Filters

这个小型企业创新研究(SBIR)第一阶段项目将开发一种创新的可紫外线(UV)固化的陶瓷前聚合物化学，用于制造用于柴油微粒过滤器和其他应用的高产量和低成本的碳氧硅(SOC)纤维。从紫外光固化预陶瓷聚合物到碳化硅和氮化硅/碳化硅，制备了碳化硅、氮化硅和氮化硅/碳化硅(Si3N4/SiC)陶瓷，陶瓷成品率超过85%。初步实验表明，SOC纤维也可以由高粘度、光固化的热塑性预陶瓷聚合物制成。聚乙炔基硅氧烷预陶瓷聚合物在SOC/SOC复合材料中也具有作为粘结剂或基质相的潜力。第一阶段将优化纤维生产技术。汽车和卡车市场制造商的微粒柴油过滤器有望实现潜在的商业应用。

This Small Business Innovation Research (SBIR) Phase I project will develop an innovative new ultraviolet (UV) curable pre-ceramic polymer chemistry for the fabrication of high yield and low cost silicon oxycarbide (SOC) fibers for diesel particulate filters and other applications. Silicon carbide (SiC), silicon nitride (Si3N4), and silicon nitride/silicon carbide (Si3N4/SiC) ceramics have been fabricated from UV photocurable pre-ceramic polymers to SiC and Si3N4/SiC with higher than 85 percent ceramic yield. Preliminary experiments have demonstrated that SOC fibers can also be fabricated from high-viscosity, photocurable thermoplastic pre-ceramic polymers. The poly(ethynyl)siloxane pre-ceramic polymers also have potential as a binder or matrix phase in SOC/SOC composites. Phase I will optimize fiber production techniques.Potential commercial applications are expected in particulate diesel filters for manufacturers in the automotive and truck markets.