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    • 2. 发明申请
    • FLEXIBLE, SEMICONDUCTING NANOCOMPOSITE MATERIALS BASED ON NANOCRYSTALLINE CELLULOSE AND POLYANILINE
    • 基于纳米晶体纤维素和聚氨酯的柔性,半导体纳米复合材料
    • WO2012129659A1
    • 2012-10-04
    • PCT/CA2012000281
    • 2012-03-28
    • FPINNOVATIONSHAMAD WADDOD YASSERATIFI SIHAM
    • HAMAD WADDOD YASSERATIFI SIHAM
    • C08L79/02C08J5/24C08L1/02
    • H01B1/20B82Y30/00C08L1/04C08L79/02
    • A new approach is conceived for the development of organic polymeric conducting materials synthesized from nanocomposites of nanocrystalline cellulose (NCC) and polyaniline (PANI). The process involves oxidative-radical polymerization of aniline in the presence of NCC using either in situ or emulsion polymerization. The resulting NCC-PANI nanocomposite material can be obtained in film or powder form and exhibits electrical conductive properties typical of semiconducting materials. Unlike PANI, a brittle conductive polymer, NCC-PANI nanocomposite materials can be engineered to possess significant flexibility, strength and/or hardness as a result of the NCC acting as a reinforcing scaffold. Depending on the preparation conditions, electrical conductivities for the NCC-PANI nanocomposite materials prepared according to this disclosure range from 9.98 x 10-5 to 1.88 x 10-2 S.cm-1; they could also have hardness > 0.189 GPa or be formed into flexible films of tensile strength of the order of 9.74 MPa and stretch of the order of 0.54%. These unique electrical and mechanical properties render these materials suitable for use in a variety of value-added industrial products, such as batteries, electronics, electrical sensors, separation membranes, anti-static coatings for aerospace applications, as well as anti-corrosive coatings for automotives and other industrial applications.
    • 设计了一种从纳米晶体纤维素(NCC)和聚苯胺(PANI)的纳米复合材料合成的有机聚合物导电材料的开发的新方法。 该方法包括使用原位或乳液聚合在NCC存在下苯胺进行氧化自由基聚合。 所得到的NCC-PANI纳米复合材料可以以薄膜或粉末形式获得,并且表现出典型的半导体材料的导电性能。 与PANI不同,脆性导电聚合物NCC-PANI纳米复合材料可以被设计成具有显着的柔韧性,强度和/或硬度,这是NCC作为增强支架的结果。 根据制备条件,根据本公开制备的NCC-PANI纳米复合材料的电导率范围为9.98×10 -5至1.88×10 -2 S.cm -1; 它们也可以具有> 0.189GPa的硬度,或者形成拉伸强度为9.74MPa,拉伸度为0.54%的柔性膜。 这些独特的电气和机械性能使这些材料适用于各种增值工业产品,如电池,电子,电气传感器,分离膜,航空航天应用的防静电涂料,以及防腐涂料 汽车和其他工业应用。