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Effect of Pulping Conditions on the Properties of Bamboo Paper

机译：制浆条件对竹纸性能的影响

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摘要

We investigated the effect of pulping processes on the strength properties of bamboo paper. Bamboo was pulped by hand and by the kraft process. Handsheets were formed from the pulps obtained and their properties were measured before and after accelerated aging. The pulp made by hand had lower water retention and higher initial viscosity than the kraft pulp. Paper made from the hand-made pulp had considerably higher aging resistance than paper made from the kraft pulp. All the measurements revealed that acid-free paper made from the hand-made pulp retained its mechanical strength (especially folding endurance) better during accelerated aging than acid-free paper made from the kraft pulp. Retention of the folding endurance depended considerably on the retention of the zero-span tensile strength during sealed-tube aging. With the exception of zero-span tensile strength, hand-pulped and kraft-pulped acidic papers did not exhibit any significant difference in their mechanical properties. Although the paper made from the hand -made pulp had higher sheet strength than the paper made from the kraft pulp, both papers exhibited similar reductions in the surface pH during tube aging. Before and after accelerated aging, the paper made from kraft pulp produced by cooking at 170 ℃ for 90 min had higher intrinsic fiber strength than the paper made from kraft pulp produced by cooking at 160 ℃ for 60 min for both acid-free and acidic papers.
机译：我们研究了制浆工艺对竹纸强度性能的影响。手工和牛皮纸制浆将竹浆制浆。由获得的纸浆形成手抄纸，并在加速老化之前和之后测量其性能。手工制得的纸浆比牛皮纸浆具有较低的保水性和较高的初始粘度。由手工制浆制得的纸比由牛皮纸浆制得的纸具有更高的耐老化性。所有测量结果都表明，由手工制浆制成的无酸纸在加速老化过程中保留了比由牛皮纸浆制得的无酸纸更好的机械强度（尤其是耐折性）。耐折曲性的保持很大程度上取决于密封管老化过程中零跨度拉伸强度的保持。除零跨度拉伸强度外，手抄纸和牛皮纸抄纸的酸性纸的机械性能没有任何显着差异。尽管由手工制浆制得的纸具有比由牛皮纸浆制得的纸更高的片材强度，但是两种纸在管老化期间均表现出相似的表面pH降低。在加速老化前后，用无酸纸和酸性纸在170℃下蒸煮90分钟制得的牛皮纸浆的纸的固有纤维强度比在160℃下的60分钟蒸煮后的牛皮纸浆的纸具有更高的固有纤维强度。 。

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  • 来源
    《繊維学会誌》 |2012年第11期|60-65|共6页
  • 作者

    Rhine Rhine Win; Masaaki Ariyoshi; Masazumi Seki; Takayuki Okayama;

  • 作者单位

    United Graduate School of Agricultural Science, Tokyo University of Agriculture and Technology,3-5-8- Saiwai-cho, Fuchu, Tokyo 183-8509, Japan;

    Kochi Prefectural Paper Technology Center, Kochi 781-2128, Japan;

    Kochi Prefectural Paper Technology Center, Kochi 781-2128, Japan;

    United Graduate School of Agricultural Science, Tokyo University of Agriculture and Technology,3-5-8- Saiwai-cho, Fuchu, Tokyo 183-8509, Japan;

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