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首页> 外文会议>TAPPI International Conference on Nanotechnology 2006 >Layer-by-Layer Nanocoating on Lignocellulose Fibers: Conductive Polymers and Nanoparticles
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Layer-by-Layer Nanocoating on Lignocellulose Fibers: Conductive Polymers and Nanoparticles

机译：木质纤维素纤维上的逐层纳米涂层：导电聚合物和纳米颗粒

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Systematic modification of fiber external surfaces and their lumen was demonstrated by using layer-by-layer (LbL) nanoassemblies via alternate adsorption of positive and negative polyelectrolytes. In the best case scenario of 1:1 mixture of positively and negatively charged LbL-treated pulp, we doubled the paper tensile strength. LbL-coating with multilayers of anionic polythiophene (PEDOT-PSS) in alternation with polycations resulted in conductivity of 5x10~(-3) Scm~(-1) for unbeaten and 10 Scm~(-1) for beaten softwood fibers. Fiber conductivity was proportional to the number of deposited PEDOT-PSS monolayers. Fibers were also coated with organized multilayers of nanoparticles (50-nm diameter TiO_2, SiO_2, and tubule halloysite) with controlled loading in the range of 0.5 - 3 wt %.
机译：纤维外表面及其内腔的系统修饰通过使用正负聚电解质交替吸附的逐层（LbL）纳米组件而得到证明。在带正电和带负电的LbL处理的纸浆1：1混合的最佳情况下，我们将纸张的拉伸强度提高了一倍。多层阴离子聚噻吩（PEDOT-PSS）与聚阳离子交替进行的LbL涂层，未打浆的电导率为5x10〜（-3）Scm〜（-1），打浆的软木纤维的导电率为10 Scm〜（-1）。纤维导电率与沉积的PEDOT-PSS单层数量成正比。纤维还涂覆有纳米颗粒的组织化多层结构（直径为50 nm的TiO_2，SiO_2和微管埃洛石），控制载荷在0.5-3 wt％范围内。

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