利用免乾燥方法製作混合基質薄膜

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姓名

林孟頡(Lin Meng Jie) 查詢紙本館藏

畢業系所

化學工程與材料工程學系

論文名稱

利用免乾燥方法製作混合基質薄膜
(Fabricating Ideal Gas Separation Membrane by Drying-Free Process)

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摘要(中)

在過去的幾十年中，氣體分離已成為一個重要問題。許多材料用於分離氣體。為了進行良好的氣體分離並降低製造價格，選擇使用混合基質薄膜 (MMM)。因此，我們用多孔材料和聚合物製備混合基質薄膜，以高效分離氣體。
本研究展示了以傳統方式和免乾燥方式製造 MMM 的結果。雖然 HKUST-1 是一種相對容易合成的材料，但它具有吸濕性。以免乾燥方式將 HKUST-1 添加到 Pebax®2533 中可以減少 HKUST-1 吸水的機會。
在這項研究中，通過免乾燥方式製成的 MMM 在 HKUST-1 和 Pebax®2533 之間具有良好的連接性。它還比傳統的 MMM 有著更好的氣體分離效果。三種薄膜他們對氮氣的通透量是很接近的，不過傳統的MMM，他二氧化碳的通透量比Pebax®2533高出了1.1倍，而免乾燥方法製成的MMM，其二氧化碳的通透量比Pebax®2533高出了1.5倍。故免乾燥方法製成的MMM有最好的氣體分離效果。

摘要(英)

Nowadays, global warming is a serious problem. Due to the development of technology, lots of greenhouse gases are discharged into the atmosphere. Gas separation has become an important issue in the past decades. Lots of materials are used to separate the gases. Although inorganic membranes have the best gas separation performance, they have a high cost to fabricate. In order to perform great gas separation and lower the fabrication price, mixed matrix membranes (MMMs) are chosen to use. Therefore, we prepare MMMs with porous material and polymer to separate the gases at high performance.
This research presents the result of fabricating the MMMs in the traditional way and in a drying-free way. Although HKUST-1 is one such material that can be synthesized relatively easily, it is hygroscopic. Its structure will be damaged permanently after adsorbing too much water. Adding HKUST-1 into Pebax®2533 by the drying-free way can reduce the chance for HKUST-1 to absorb water.
In this work, the HKUST-1 and MMMs are tested by XRD, TGA, SEM, and FTIR. They were proven to be successfully synthesized. The MMM which is made by a drying-free process has a good connection between the HKUST-1 and Pebax®2533. It also performs the best gas separation among the Pebax®2533 membrane and traditional MMM. Its CO2 permeability increased 1.5 times compared to the pure Pebax®2533 membrane and 1.1 times compared to traditional MMM. Although drying-free MMM has better gas separation performance at 10 weight percent, its performance drops as its weight loading were add up to over 20 weight percent due to the aggregation.

關鍵字(中)

★ 氣體分離
★ 混合基質薄膜
★ 有機金屬框架
★ 非乾燥方法

關鍵字(英)

★ Gas separation
★ Mixed Matrix Membranes
★ Metal-Organic Frameworks
★ Drying-Free

論文目次

摘要 ii
Abstract iii
Acknowledgment v
Table of Contents vi
List of Figures viii
List of Table 1
Chapter 1 Background 2
1-1 Introduction 2
1-2 Literature Review 4
Chapter 2 Experimental 11
2-1 Materials and Reagents 11
2-2 Analysis Instruments and Characterization 11
2-2-1 X-ray diffraction (XRD) 11
2-2-2 Thermogravimetric analysis (TGA) 12
2-2-3 Scanning electron microscopy (SEM) 12
2-2-4 Fourier-transform infrared spectroscopy (FTIR) 13
2-2-5 Single gas permeation measurement 13
2-3 Instruments Used 15
2-4 Synthesis of HKUST-1 16
2-5 Synthesis of Membrane 16
Chapter 3 Results and Discussion 22
3-1 Characterization for HKUST-1 Powder 22
3-2 Characterization for Membranes 27
3-3 Gas Permeation Measurements 35
Chapter 4 Conclusions 38
Chapter 5 Future Work 39
References 40

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指導教授

張博凱(Bor Kae Chang)

審核日期

2022-9-14

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