Abstract
A new single-phased thermosetting resin (propargyloligosilazane, POSZ) was prepared through Hofmann alkylation of oligosilazane with propargylbromide; the propargyl content in POSZ was controlled by monitoring the amount of propargylbromide in synthesis. The characterizations showed that POSZ has ideal rheology during material processing, the thermal curing temperature could be lowered when isocyanate was used as crosslinking agent, and the thermally cured POSZ can be pyrolyzed into anti-oxidative ceramic at a high yield of >70%. For POSZ-matrixed carbon-fabric laminate composite, it possessed high mechanical properties and retained the original shape with the increase of temperature as high as 800 °C. The POSZ-matrixed laminate has the mechanical properties combining polymer character at room temperature and ceramic character at high temperature, and it will find many prospective high temperature applications in need of polymer and ceramic properties simultaneously.
Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
Research funding: None declared.
Conflict of interest statement: The authors declare no conflicts of interest regarding this article.
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Artikel in diesem Heft
- Frontmatter
- Articles
- Performance and microbial community of a novel PVA/iron-carbon (Fe–C) immobilized bioreactor for nitrate removal from groundwater
- Modeling of dry reforming of methane for hydrogen production at low temperatures using membrane reactor
- Formation mechanism and chaotic reinforcement elimination of the mechanical stirring isolated mixed region
- CFD-DEM simulation of powders clogging in a packed bed with lateral inlet
- Degradation of basic violet 16 dye by electro-activated persulfate process from aqueous solutions and toxicity assessment using microorganisms: determination of by-products, reaction kinetic and optimization using Box–Behnken design
- Propargyloligosilazane matrixed composite for high temperature material combining polymer and ceramic properties
- An application of continuous flow microreactor in the synthesis and extraction of rabeprazole
- Numerical study on gas–liquid two-phase flow and mass transfer in a microchannel
- A new two-layer passive micromixer design based on SAR-vortex principles
Artikel in diesem Heft
- Frontmatter
- Articles
- Performance and microbial community of a novel PVA/iron-carbon (Fe–C) immobilized bioreactor for nitrate removal from groundwater
- Modeling of dry reforming of methane for hydrogen production at low temperatures using membrane reactor
- Formation mechanism and chaotic reinforcement elimination of the mechanical stirring isolated mixed region
- CFD-DEM simulation of powders clogging in a packed bed with lateral inlet
- Degradation of basic violet 16 dye by electro-activated persulfate process from aqueous solutions and toxicity assessment using microorganisms: determination of by-products, reaction kinetic and optimization using Box–Behnken design
- Propargyloligosilazane matrixed composite for high temperature material combining polymer and ceramic properties
- An application of continuous flow microreactor in the synthesis and extraction of rabeprazole
- Numerical study on gas–liquid two-phase flow and mass transfer in a microchannel
- A new two-layer passive micromixer design based on SAR-vortex principles