| 摘要: | 本研究是將高強力聚酯/尼龍梭織物以微波、氧氣電漿及遠紅外
線進行兩段式預處理，使纖維表面粗糙化且改善濕潤性，並浸漬異氰
酸鹽水溶液使纖維表面活性化，借以改善RFL 藥劑之包覆性及化學
活性，進而提升橡膠熱壓後輸送帶基布之黏結強力。本研究將高強力
聚酯/尼龍梭織物以微波功率490W 時間60s，氧氣電漿功率240W 時
間60s，遠紅外線溫度200℃時間20s。經處理後之纖維表面因受能量
破壞與蝕刻，由原本的平滑變為粗糙，使得表面積上升。接觸角測量
是將甘油滴於織物表面，測試15s，每0.5s 測量一次，由結果可知，
經處理後之基布其濕潤性較未處理之基布佳，接觸角由原本的25.4
度降至14.1 度。先經氧氣電將處理後再行遠紅外線處理之基布，其
拉伸斷裂強力下降13.99%，符合業界不得下降超過15%之標準。基
布先經微波再行遠紅外線處理後，壓吸率為32.63%；先經遠紅外線
再行微波處理，以及先經微波再行氧氣電漿處理之基布，行預浸漬後
其壓吸率約為31.35%。僅預浸漬後，其布與布層間和布與膠層間黏
結強力上較未處理原布提升至12.7kgf，提升23.30%，及12.1kgf，提
升28.72%；加上預處理後，處理方式為先經氧氣電漿再行遠紅外線
處理之基布，其布與布層間黏結強力提升最多，黏結強力為17.3kgf，
提升69.96%，而處理方式先經遠紅外線再行氧氣電漿處理之基布，
其布與膠層間黏結強力提升最多，黏結強力提升至18.5kgf，上升
96.81%。
This research is to study the high strength polyester/nylon fabric pre-treat by microwave, oxygen plasma and far-infrared, for the purpose of making better wetting ability and fiber surface got rougher. And surface activate by dipping isocyanate solution. Improve the coating performance and activation of RFL solution, in order to the hot pressing with rubber for conveyor belt product has better adhesion strength. In this study, the high strength polyester/nylon fabric has been treated both side by the following conditions, 490W with 60s by microwave, 240W with 60s by oxygen plasma, and 200℃ with 20s by far-infrared. As the result of treatments, the fiber surface changed from smooth to rough and etching effect was occurred after treated, the surface area of fiber was increased as well. The contact angle testing is by glycerol dropping the fabric and testing 15s with interval between 0.5s to get a data. The wetting ability was improved after treated, and the absorption rate is faster than the untreated fabric. The final contact angle of untreated fabric is 25.4 degrees, and the best final contact angle of treatment condition is that first treat by oxygen plasma then treat by far-infrared, the final contact angle is 14.1 degrees. The tensile broken strength is decreased to 13.99%, the treatment condition is that first treat by oxygen plasma then treat by far-infrared, it is within industry standard for less than 15%. The pick up ratio is 32.63%, the treatment condition is that first treat by microwave then treat by far-infrared. The pick up ratio is about 31.35% of pre-dipping fabric, the treatment conditions are that first treat by far-infrared then treat by microwave, and first treat by microwave then treat by oxygen plasma. After pre-dipping without pre-treatment, the adhesion strength of fabric and fabric layer compared with the untreated has raised up to 12.7kgf (23.30%), and fabric and rubber layer has raised up to 12.1kgf (28.72%). With both of pre-treatment and pre-dipping, the adhesion strength of fabric and fabric layer compared with the untreated has raised up 17.3kgf (69.96%), the treatment condition is that first treat by oxygen plasma then treat by far-infrared. The adhesion strength of fabric and rubber layer has raised up to 18.5kgf (96.81%) the treatment condition is that first treat by far-infrared then treat by oxygen plasma. |
