Deposition of thick polymer or inorganic layers with flame-retardant properties by combination of plasma and spray processes
Deposition of thick polymer or inorganic layers with flame-retardant properties by combination of plasma and spray processes
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DOI：
10.1016/j.surfcoat.2013.04.039
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发表时间：
2013-08
影响因子：
5.4
通讯作者：
Zeinab R. Farag;S. Krüger;G. Hidde;A. Schimanski;C. Jäger;J. Friedrich
中科院分区：
文献类型：
--
作者：
Zeinab R. Farag;S. Krüger;G. Hidde;A. Schimanski;C. Jäger;J. Friedrich
用六甲基二硅氧烷(HMDSO)和氧气的混合物在低压条件下通过等离子体聚合在聚乙烯和聚苯乙烯上沉积了类SiO_2层。将水玻璃浇铸在厚度为5~40μm的0.5μm等离子体硅氧烷双层膜上，测试了双层膜体系的附着力和阻燃性能。研究了不同的等离子体参数如单体/气体比、放电压力和功率对沉积速率和成层成分的影响。用红外光谱、X射线光电子能谱和固体核磁共振光谱对所形成的薄膜进行了表征和化学成分分析。测试了复合材料的剥离强度，检测了剥离前沿的扩展轨迹。用热重分析法对复合材料的热性能进行了分析。最后，通过暴露在火焰中测定了厚涂层聚合物的阻燃性能，并直观地观察了聚合物表面涂层在燃烧过程中的行为。
Mixtures of hexamethyldisiloxane (HMDSO) and oxygen have been used for deposition of SiO2-like layers by plasma polymerization under low-pressure conditions onto polyethylene and polystyrene used as basecoat. Water glass was cast onto these 0.5μm plasma thick siloxane-like layers with a thickness of 5 to 40μm. The adhesion of these bilayer systems and their flame resistance were tested. The effect of different plasma parameters such as monomer/gas ratio, pressure and power input into the discharge on the deposition rate and the composition of the formed layers was studied. Characterization and chemical composition of the formed films were performed using infrared, X-ray photoelectron and solid state nuclear magnetic resonance spectroscopy. Peel strengths of composites were measured and the locus of peel front propagation was detected. Thermal properties of composites were analyzed by thermo-gravimetric analysis. Finally, the fire-retardant properties of thick coated polymers were determined by exposure to flames and the behavior of coatings on the polymers during flaming was observed visually.