碩士 / 大漢技術學院 / 土木工程與環境資源管理研究所 / 105 / Because of cushioning and insulating properties, Styrofoam is widely used in one-time packaging of a variety of goods. A considerable amount of waste is, as a result, produced, which makes it difficult to be recycled and transported. Recent studies have shown that up to 90% of floating oceanic debris is Styrofoam and it has posed a serious threat to the ecology.
In this research, CH3COOSO3H is used as sulfonatingagent. After the Sulfonation of deserted Styrofoam, it then has highly economic ion exchange capacity. By comparing it with the same type of ion exchange resin on the market, an analysis of sulfonation of the deserted Styrofoam is conducted to see if Sulfonation could induce ion exchange capacity and thus increase the possibilities of recycling and reusing of Styrofoam.
In the following is the research method. First, Divinylbenzene is used as the main solvent to dissolve Polystyrene and deserted Styrofoam. Next, different amounts of CH3COOSO3H (20ml, 50ml, and 80ml respectively) are added for Sulfonation in order for SO3H- to make bond with experimental materials. Finally, degree of Sulfonation and ion exchange capacity are adopted for criteria to see if there is a distinction between Polystyrene and Styrofoam and ion exchange resin on the market.
The experiment aims to find out
(1) The properties of absorption and regeneration of ion exchange resin on the market.
(2) How Sulfonatingagent would affect degree of Sulfonation after the Sulfonation of Polystyrene and deserted Styrofoam
(3) How grain size would affect ion exchange capacity after the Sulfonation of Polystyrene and deserted Styrofoam.
(4) The properties of absorption and regeneration of the Sulfonation of Polystyrene and deserted Styrofoam.
In the following are the results of the experiment. As for Polystyrene, the sulfonation of Polystyrene could induce ion exchange capacity. Degree of Sulfonation is approximately 90% of theoretical degree of Sulfonation, while its ion exchange capacity could barely have 58% of that of ion exchange resin on the market. As for the deserted Styrofoam, the Sulfonation of Styrofoam could induce ion exchange capacity. Degree of Sulfonation is 70% of theoretical degree of Sulfonation, whereas its ion exchange capacity could barely have 30% of that of ion exchange resin on the market. It is found that the foaming agent and dyes in the deserted Styrofoam are the factors in affecting the degree of Sulfonation. Also, because the Sulfonation of Polystyrene and Styrofoam does not cross link with Divinylbenzene, its structure is looser than that of ion exchange resin on the market. This property, however, turns out to help accelerate ion exchange.
| Identifer | oai:union.ndltd.org:TW/105DH000015006 |
| Date | January 2017 |
| Creators | CHEN, CHUN TING, 陳俊廷 |
| Contributors | HO, CHIH-HSUAN, 何志軒 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 82 |
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