吸附Ca<sup>2+</sup>纳米4A沸石与碳酸钙复配用作造纸填料的研究

何月峰; 孙海利; 方　飞; 戴鸿军; 史惠祥<sup>*</sup>

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吸附Ca²⁺纳米4A沸石与碳酸钙复配用作造纸填料的研究

Study of Using Blended Calcium Carbonate and Nano-4A Zeolite Adsorbed Ca²⁺ as Filler

收稿日期：

DOI：10.11980/j.issn.0254-508X.2014.07.003

关键词: 吸附Ca²⁺纳米4A沸石碳酸钙复配加填

Key Words:nano-4A zeolite of adsorbed Ca²⁺ calcium carbonate blending filler

基金项目:浙江省重大科技专项(No. 2012C03004-1) 废纸造纸污水微排放DCS控制关键技术研究与示范。

作者	单位
何月峰	浙江大学环境工程研究所，浙江杭州，310058
孙海利	浙江大学环境工程研究所，浙江杭州，310058
方　飞	浙江大学环境工程研究所，浙江杭州，310058
戴鸿军	浙江大学环境工程研究所，浙江杭州，310058
史惠祥^*	浙江大学环境工程研究所，浙江杭州，310058

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摘要:纳米4A沸石广泛用于高钙废水的处理，本研究探讨了吸附Ca²⁺纳米4A沸石与碳酸钙复配加填对纸张性能的影响。结果表明，吸附Ca²⁺纳米4A沸石与碳酸钙在粒径分布和形貌特征上具有良好的匹配性。吸附Ca²⁺纳米4A沸石替代量在50%时，纸张的抗张指数较碳酸钙填料提高了7.4%；替代量在25%时，耐破指数提高了4.8%，环压指数提高了21.1%。吸附Ca²⁺纳米4A沸石表现出与纤维之间明显的交织作用，纸张纤维之间具有更好的结合度，提高了纸张的平滑度。

Abstract:The effect of using blended calcium carbonate and nano-4A zeolite which has adsorbed Ca²⁺ as filler on the paper strength property was studied. The results showed that nano-4A zeolite adsorbed Ca²⁺ was matched with calcium carbonate on the particle size distribution and morphology features. The tensile index of the paper increased by 7.4% compared with the filler of calcium carbonate when using the blended filler and the replacement of nano-4A zeolite was 50%. Burst index increased by 4.8%, ring crush index increased by 21.1% when the replacement was 25%. There is obvious intertexture between nano-4A zeolite adsorbed Ca²⁺ and fiber. The smoothness of the paper was improved when the paper fiber had better bonding. The application of nano-4A zeolite adsorbed Ca²⁺ could reduce the concentration of Ca²⁺in effluent of the paper mill. It was good for wastewater treatment and recycling.

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