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首页> 外文期刊>Nordic Pulp & Paper Research Journal >Electroconductive paper - a study of polymer deposition and conductivity influenced by sheet forming and fibre beating
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Electroconductive paper - a study of polymer deposition and conductivity influenced by sheet forming and fibre beating

机译：导电纸-纸张成型和纤维打浆对聚合物沉积和电导率影响的研究

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摘要

A conducting polymer modified paper was produced by depositing poly(3,4-ethylenedioxy thiophene)/poly(4-styrene sulfonate) (PEDOT:PSS) and W-methylpyrrolidone blend onto dynamically-formed and handsheet-formed paper substrates. The effect of fibre beating on the conducting polymer deposition and the bulk conductivity of the coated papers was investigated. A bulk electrical conductivity of the order 10"1 S/cm was established for unbeaten samples coated with PEDOT:PSS dispersion. It was observed that the bulk conductivity of the coated papers depended on the quantity of PEDOT:PSS deposited; although at a lower polymer application, degree of fibre beating was of higher consequence. This was due to the increased surface contact of the highly refined and well-packed fibres which decreased the distance between PEDOT molecules. To understand the nature of the conductance, the location of the conducting polymer within the paper substrate was investigated by mercury porosimetry, nitrogen adsorption analysis and scanning electron microscopy. Results showed a preferential deposition of PEDOT:PSS at fibre crossings as a remnant of the wetting front. In addition, traces of PEDOT:PSS could be seen throughout the fibre network. Still, the detailed conductance process remains unknown as the presence and contribution of ions to conductance cannot be excluded. The influence of the deposited polymer on the physical behaviour of the substrate was examined by tensile index data and contact angle measurement. No detrimental effect of the water from the PEDOT:PSS solution was observed.
机译：通过将聚（3,4-亚乙二氧基噻吩）/聚（4-苯乙烯磺酸盐）（PEDOT：PSS）和W-甲基吡咯烷酮共混物沉积到动态成型的和手抄纸成型的纸质基材上，制成导电聚合物改性纸。研究了纤维打浆对导电聚合物沉积和涂层纸体导电率的影响。对于涂覆有PEDOT：PSS分散体的未打样样品，其总电导率确定为10“ 1 S / cm。观察到，涂布纸的总电导率取决于沉积的PEDOT：PSS的数量；尽管较低在聚合物的应用中，纤维跳动的程度具有更高的影响，这是由于高度精炼和堆积良好的纤维增加了表面接触，从而减小了PEDOT分子之间的距离。通过水银孔率法，氮吸附分析和扫描电子显微镜研究了纸基材中的聚合物，结果表明PEDOT：PSS在纤维交叉处优先沉积，作为润湿前沿的残留，此外还可以看到PEDOT：PSS的痕迹。整个光纤网络中，详细的电导过程仍然未知，因为离子的存在和对电导的贡献无法被排除迷住了。通过拉伸指数数据和接触角测量来检查沉积的聚合物对基材的物理性能的影响。没有观察到来自PEDOT：PSS溶液的水的有害影响。

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