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頁籤選單縮合
題 名 | Synergy of Bentonite and Starch Enhances the Physical Properties of Handsheets from Recycled Pulp=膨皂土及澱粉對於提升回收紙漿物理性質的協同效應 |
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作 者 | 彭元興; 王益真; 葉慶隆; 徐健國; | 書刊名 | 臺灣林業科學 |
卷 期 | 33:2 2018.06[民107.06] |
頁 次 | 頁89-96 |
分類號 | 476.1 |
關鍵詞 | 澱粉; 膨皂土; 回收紙漿; 環壓強度; 破裂強度; Starch; Bentonite; Recycled pulp; Ring-crush strength; Bursting strength; |
語 文 | 英文(English) |
中文摘要 | 本研究主要探討在造紙濕端添加膨皂土來留存生澱粉在紙張中,以提升手抄紙的物理性質的可行性。實驗結果顯示提高澱粉添加量會不利於一次保留率,高分子助凝劑及澱粉的相互效應有助於提升一次保留率。但是澱粉及膨皂土的相互效應及高分子助凝劑、澱粉、膨皂土的三階相互效應則不利於一次保留率。高分子助凝劑及膨皂土的相互效應不利於降低白水中的COD。高分子助凝劑及膨皂土的主效應會改善靜態濾水度。手抄紙的平均環壓強度提升31%,最高可以提升到53%。對於主效應而言,提高澱粉及膨皂土的添加量,會提升環壓強度;但高分子助凝劑則會有負作用。對於相互效應而言,所有相互效應皆不利於環壓強度的提升。對於主效應而言,提高澱粉的添加量,會提升破裂強度;但高分子助凝劑及膨皂土則會有負作用。對於相互效應而言,所有相互效應皆不利於破裂強度的提升。 |
英文摘要 | In this study, we investigated the feasibility of applying bentonite to the papermaking wet end to retain raw starch in paper sheets. The results indicated that an increased starch dosage reduced the first-pass retention (FPR), while a polymer and starch showed an interaction and was helpful for increasing the FPR. However, the interaction of starch and bentonite, and the triple interaction among polymer, starch, and bentonite were detrimental to the FPR. The interaction of a polymer and bentonite hampered the decrease in the white water chemical oxygen demand. The main effect of the polymer and bentonite application was to improve static drainage. On average, the ring-crush strength of the resulting paper increased 31%, with a maximum gain of 53%. With respect to the main effects, increasing starch and bentonite dosages were both helpful for the ring-crush strength; conversely, the polymer tended to decrease the ring-crush strength. As for interactions, all were detrimental to gains in the ring-crush strength. On average, the burst index increased 25%, and the maximum gain was 61%. For the main effects, an increase in the starch dosage enhanced the burst index, while polymer and bentonite combination reduced the burst index. All interactions were found to detract from increasing the burst index. |
本系統中英文摘要資訊取自各篇刊載內容。