碳酸鈣礦物疏水性改質及應用

近年來海洋環境時常出現大型船舶擱淺且發生溢油事件頻繁，其中擱淺船舶所裝載的油品若外洩至周遭水域，這將對於海洋與環境生態造成非常大的破壞。開發對海洋或是任何水體去除油污的新材料與技術是不可或缺的。因此，本研究發展出一套非常快速且簡單的程序，在單一程序、單一反應槽以及室溫下，將天然碳酸鈣礦物改質成超疏水碳酸鈣，其產量達100%。此程序中，僅利用酸鹼間的控制，就能使疏水和親水比率(active ratio)高達98%。透過XRD儀器檢測，結果顯示改質碳酸鈣產物為方解石。超疏水碳酸鈣其水接觸角高達143.8度。超疏水碳酸鈣與泡棉再製後，碳酸鈣每克油污吸附能力高達18.5克油污，與原始泡棉相比，再製後吸油效果成長1017%，再使用至10次回收後，還保有吸附能力。本研究結果大幅降低生產超疏水碳酸鈣的能量消耗與原料成本，此簡便的生產方式，更有利於疏水性碳酸鈣發展，並開拓其在各類型工業之研發與應用。

關鍵字

疏水性；碳酸鈣；油污去除

並列摘要

In recent years, we often see large ships run aground in our marine environment and complex spills occur, where the ships run aground. If the loaded oil leaks to the surrounding waters, which will cause great damage to the marine environment and ecology. The development of any new materials and technologies to degrease and remove the oil spills in the marine water is essential. Therefore, this research study found a very quick and simple procedure; under this one procedure, in one reaction vessel, and at room temperature, the natural calcium carbonate mineral modified into a super-hydrophobic calcium carbonate, its yield up to 100%. In this program, simply utilizing along the pH scale, acid-base, we can make the hydrophobic and hydrophilic ratio (active ratio) as high as 98%. Through XRD instrument, and the results show the modified calcium carbonate product as calcite. Super-hydrophobic calcium carbonate water contact angle as high as 143.8 degrees. After the super-hydrophobic foam reconstituted with calcium carbonate, calcium carbonate oil adsorption capacity is 18.5 grams of oil per gram, compared with the original foam, reconstituted after the adsorption effect of the growth is 1017%, 10 times to re-use recovered, but also to maintain the adsorption capacity. This research results significantly reduce the production of calcium carbonate super-hydrophobic energy consumption and raw material costs, this simple mode of production, is more conducive to the development of hydrophobic calcium carbonate, the development of its R&D, and application to various types of industry.

並列關鍵字

Hydrophobic ； Calcium carbonate ； Remove oil

參考文獻

Baoqing, SHENTU, LI Jipeng and WENG Zhixue, Effect of Oleic Acid-modified Nano-CaC03 on the Crystallization Behavior and Mechanical Properties of Polypropylene, Chinese J. Chem. Eng., 14(6) 814-818 (2006)

Chen, Yinxia, Xianbing Ji, Gaiqing Zhao, and Xiaobo Wang, Facile preparation of cubic calcium carbonate nanoparticles with hydrophobic properties via a carbonation route, Powder Technology 200 (2010) 144–148

Cheng, Bei, Ming Lei, Jiaguo Yua, and Xiujian Zhao, Preparation of monodispersed cubic calcium carbonate particles via precipitation reaction, Materials Letters 58 (2004) 1565– 1570

Cheng, Qijun, Yanwei Dong, Ming Kang, and Ping Zhang, Preparation and tunable luminescence of CaCO3: Eu3+, Tb3+ phosphors, Journal of Luminescence 156 (2014) 91–96

Hu, Linna, Pengfei Dong, and Guanwei Zhen, Preparation of active CaCO3 nanoparticles and mechanical properties of the composite materials, Materials Letters 63 (2009) 373–375

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碳酸鈣礦物疏水性改質及應用

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