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首页> 外文会议>International Conference on Digital Printing Technologies: Final Program and Proceedings; 20050918-23; Baltimore,MD(US) >A Preparation of Spherical Calcium Carbonate and Application to Paper
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A Preparation of Spherical Calcium Carbonate and Application to Paper

机译：球形碳酸钙的制备及其在造纸中的应用

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摘要

Silica is generally used for ink-jet paper as a coating pigment for high print quality. As a substitute of expensive silica, calcium carbonate having a crystal form of vaterite was examined in terms of the preparation method for high purity and surface wetting behavior of its coated paper. Pure vaterite synthesis was successfully achieved by the modified interfacial reaction method, i.e., at a temperature of 25℃ of all the reacting liquids and high shear rate during mixture. Spherical vaterite aggregates developed so is around 1 μm diameter and consists of primary particle less than 100 nm diameter. As for vaterite-coated paper, comparatively adequate surface wetting behavior for ink-jet printing was obtained. Contact angle between a water droplet and a paper surface decreased with time by absorption for vaterite while it decreased by lateral spreading for silica. These phenomena suggest that vaterite is potential to absorb water very quickly. Thus, the potential ofvaterite as a coating pigment was suggested.
机译：二氧化硅通常用作喷墨纸的涂料颜料，以提高印刷质量。作为昂贵的二氧化硅的替代品，根据其涂布纸的高纯度和表面润湿行为的制备方法，检查了具有球v石晶形的碳酸钙。通过改进的界面反应方法，即在所有反应液体的温度均为25℃且混合期间的高剪切速率下，成功实现了纯球ate石的合成。球形球ate石聚集体的直径约为1μm，由直径小于100 nm的初级粒子组成。对于球ate石涂布纸，获得了用于喷墨印刷的相对适当的表面润湿行为。由于球v石的吸收，水滴与纸张表面之间的接触角随时间而减小，而由于二氧化硅的横向扩散而减小。这些现象表明，球rite石具有很快吸收水的潜力。因此，提出了潜在的v石作为涂料颜料。

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