polyvinylpyrrolidone 中文意思是什麼
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Nanosize silver particles have been prepared by reduction of aqueous solution of agno3 in the presence of polyvinylpyrrolidone, ethanol and de - ionized water, hydrazine hydrate was used for the reduction
摘要採用聚乙烯吡咯烷酮、無水乙醇和去離子水混合溶液，利用水合肼還原硝酸銀制備納米銀粒子。 -
Monodisperse ( coefficient of variation 5 % ) polystyrene microspheres in the size range of 1. 0 ~ 10 m are prepared by dispersion polymerization in ethyl alcohol reaction media using polyvinylpyrrolidone ( pvp ) as a steric stabilizer and 2, 2 ' - azobisizobutyronitrile ( aibn ) as an initiator in suitable condition
摘要以聚乙烯吡咯烷酮為分散劑、無水乙醇為反應介質、偶氮二異丁腈為引發劑，採用分散聚合的方法，通過優化反應條件，成功制備出了粒徑范圍為1 ~ 10 m不同粒徑級別的單分散（分散系數5 % ）聚苯乙烯微球。 -
Friends union enterprises tianjin ltd., which was registered in tianjin free trade zone, is specializing in manufacturing and marketing thiocyanate salts and polyvinylpyrrolidone series in domestic and overseas market
新聯誼天津國際工貿有限公司為天津保稅區注冊的外貿公司，集生產新品開發和銷售為一體的化工產品的生產商和供應商。 -
Friends union enterprises ( tianjin ) ltd., which was registered in tianjin free trade zone, is specializing in manufacturing and marketing thiocyanate salts and polyvinylpyrrolidone series in domestic and overseas market
新聯誼（天津）國際工貿有限公司為天津保稅區注冊的外貿公司，集生產、新品開發和銷售為一體的化工產品的生產商和供應商。
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