改質水性聚氨酯於紡織品除臭性能之研究

Modification of waterborne polyurethane and its deodorizing application on textiles

邱秉瑜(Ping-Yu Chiu)

指導教授 ： 胡哲嘉

中原大學/工學院/化學工程研究所/碩士(2016年)

https://doi.org/10.6840/cycu201600467

摘要

本研究為針對水性聚氨酯樹脂(waterborne polyurethane, WPU)進行化學結構設計，利用具有羧酸基(-COOH)與側鏈EO(ethylene oxide groups)結構之聚氨酯原料，以預聚物離子混合加工法製備出具有此特殊結構的水性聚氨酯樹脂，並經由含浸(dipping)加工方式固定於紡織品纖維表面，使鹼性臭氣透過與羧酸基的酸鹼中和形成有機鹽類，及側鏈EO上的氫鍵將酸性臭氣吸引結合，賦予紡織品對於酸性與鹼性臭氣的除臭性能，且具有除臭性能還原及耐水洗性能。
透過傅立葉轉換紅外光譜(FTIR)，驗證所製備的水性聚氨酯樹脂具有羧酸基與EO的基團結構，並經由消臭加工紡織品驗證法，驗證改質水性聚氨酯樹脂經由適當地配方設計，不同比例的羧酸基與側鏈EO合成量，對於除臭效果之相關聯性，使紡織品具有除臭特性，再經水洗過程，使紡織品的除臭性能還原；利用掃描式電子顯微鏡(SEM)證明經由水洗過程後，水性聚氨酯樹脂的高分子官能基能固定在紡織品纖維上，增加其耐水洗性。

關鍵字

水性聚氨酯 ； 除臭 ； 羧酸基

並列摘要

The purpose of this study was to examine the structures including carboxylic acid and side-chain EO (ethylene oxide) groups of the polyurethane materials to modify the chemical structure of the waterborne polyurethane (WPU). This study used the prepolymer mixing process to prepare the waterborne polyurethane dispersions and dipped the aqueous resins on fabric to obtain or possess the deodorizing properties, and deodorizing properties generated by the specific functional groups present in the polyurethane molecules.
First, we used the Fourier transform infrared spectroscopy (FTIR) to verify the functional groups including carboxylic acid and EO groups in the WPU. To explore the deodorizing effect of the coated fabric, we found that the deodorizing effects are associated with the carboxylic acid weight percent and a side-chain EO weight percent in the polyurethane chain. The deodorizing experiment results of the treated fabrics showed that, by properly designing the reaction formulations, we can enhance the deodorizing performance and deodorizing properties of the treated fabrics. The scanning electron microscope (SEM) meanwhile proved the fastness of the treated fabric to laundering as related to the fabrics' deodorizing properties.

並列關鍵字

waterborne polyurethane (WPU) ； deodorizing ； carboxylic acid

參考文獻

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