本研究針對TPU/EVA混摻系統之共押出熱熔膠薄膜之材料組成、加工參數及貼合性能進行探討，用以達成紡織業無車縫、無溶劑之高效環保要求之熱熔膠貼合膜。
實驗上先分別測定熱熔膠型熱塑性聚氨酯(TPUHM)與乙烯醋酸乙烯酯(EVA)之性質，經由熔流指數(MFI)、熱重損失(TGA)、示差掃描量熱(DSC)及流變等分析，鑑定各成分之組合特性，綜合以上相關原料性質，進而歸納出最適化之混摻加工參數。原料依據不同的配方組成，以雙螺桿混煉機進行摻合造粒，藉由混練機之高剪切力，塑料於熔融狀態下均勻混和，押出並製成塑膠粒狀。測定各配方塑膠粒之性質，經由TGA、DSC及流變等分析，分析其組合之特性，並以原料鑑定為參考基礎，綜合歸納出製備薄膜之加工參數的設定。薄膜製備使用三軸共押出機來進行，將混和完成之配方塑膠粒以押出機熔融押出，經由共押出模頭之結構設計，產出熱熔膠單層膜和具有TPU基材層及熱熔膠層之雙層複合膜。
薄膜經由力學性能、貼合之剝離特性、耐水解性及彈性回復率，綜合評析而獲致最佳之組成膠膜材料及加工參數。並於最佳之熱熔膠膜配方加入交聯劑(Aceox® TBEHC)，以交聯改質的方式來增強膠膜的耐水解性與黏著力。將含有交聯劑之功能性EVA母粒(Masterbatches)與TPUHM以最佳配方之組成比例，經由三軸共押出機製成未交聯之熱熔膠膜後，以自動熱壓成型機進行交聯反應，經由力學性能、貼合之剝離特性、耐水解性及彈性回復率，綜合評析薄膜經交聯反應之前後差異性，歸納出更具競爭力之紡織貼合膜。

In this research, the composition, processing parameters, and the ability of lamination in TPU/EVA blends system co-extrusion hot melt adhesive films were investigated, which were used to produce high-efficiency environmental-friendly sewing free and solvent free lamination film for textile.
In the experiment, hot melt adhesive type thermoplastic polyurethane elastomer(TPUHM) and ethylene-vinyl acetate(EVA) were analyzed by melt flow index tester(MFI), thermogravimetric analysis(TGA), differential scanning calorimetry(DSC), and cone/plate rheometer to determine the best processing parameters for blending. Then, raw materials were blended into certain composing by using twin screw extrusion mixer. Due to the high shear stress of the mixer, melted polymers were completely mixed and extruded into plastic particles. Analyzed by TGA, DSC, and cone/plate rheometer, the plastic particles were defined. The parameters of film process were concluded through the reference analysis above. The hot melt adhesive films were manufactured by tri-axial co-extruder. Getting the hot melt single-layer adhesive film and the double-layers film consisting of TPU base-layer and hot melt single-layer film, the plastic particles were extruded in the t-die which structure was designed for co-extrusion.
As the hot melt adhesive films were analyzed through the tests of mechanical properties, peeling properties of lamination, resistance to water, and elasticity recovery, the best composition of the adhesive films and the processing parameters were concluded. Then, we added Aceox® TBEHC as a cross-linking agent to the best adhesive film in order to strengthen the resistance to water and the peeling properties of lamination. The EVA masterbatches containing cross-linking agent were blended with TPUHM in the best composing and extruded into un-crosslinked films by tri-axial co-extruder. After finishing cross-linking reaction with automatic hot-forming machine, the films were analyzed by the tests above and compared with the un-crosslinked ones. In the end, the more competitive hot melt adhesive lamination film for textile was generalized.

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