含氟水性PU混成樹脂在織物表面撥水處理應用

Fluoro-containing Aqueous-based PU Hybrids for Water-repellent Textile Treatment

羅敏飴(Min-Yi Luo)

指導教授 ： 陳幹男

淡江大學/理學院/化學學系碩士班/碩士(2012年)

https://doi.org/10.6846/TKU.2012.01117

摘要

我們利用含浸塗佈加工的方式將含氟水性混摻樹脂塗佈在聚酯(PET)織物上，目的是將原本具有親水性的PET織物表面呈現具疏水性質。塗佈加工過程是首先將含氟水性聚胺酯(PU)與水性丙烯酸酯共聚物一定比例混摻，並以水稀釋15%至5%含浸塗佈在PET織物上後，其含有氟素的混摻樹脂會在織物表面上，利用常溫硬化反應，形成化學鍵結的互穿式網狀交聯(IPN)系統，嵌入織物纖維之間，其高度架橋含氟水性混摻樹脂會固定在織物纖維間，進而提高其耐水洗性。常溫交聯型混摻樹脂在最適加工條件下，經撥水加工後的織物其對水的接觸角超過135°，且經過50次洗滌後仍能維持其原有的撥水效果。

關鍵字

撥水 ； 水性化 ； 半乳化 ； 開環反應 ； 自身架橋

並列摘要

Polyurethane (PU) skeleton consists of hydrophobic side-chains
A fluoro-containing aqueous-based polyurethane (PU) has been prepared by conventional method and various ratio of fluoro-containing monomer is incorporated during the preparation process. A water-reducible GMA (glycidyl methacrylate) containing acrylate copolymer is prepared by free-radical copolymerization of GMA,butyl acrylate and acrylic acid; And PU hybrids with various fluoro-contents are obtained from blending these two resins in different ratios. GMA-containing acrylate copolymer functioned as a polymeric cross-linker of aqueous-based PU and its amino groups react with epoxy groups of GMA copolymer. A water-repellent PET textile is obtained from a treatment with fluoro-containing aqueous-based PU hybrids and the hybrids form polymeric networks among fibers and that enhance the water-washing durability.This treated water-repellent textile (PET) has a water contact angle over 135∘only with PU containing long chain hydrocarbons side-chains without sssany content of fluorine or polysiloxane.

並列關鍵字

hydrophobic ； aqueous-based ； self-emulsion ； ring-opening ； self-cured

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