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  • improvement of bleached wheat straw pulp properties by using aspen high-yield pulp

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1390/01/01
    • تاریخ انتشار در تی پی بین: 1390/01/01
    • تعداد بازدید: 730
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     the bleached wheat straw pulp (bwsp) accounts for about 25% of the virgin fiber supply in the chinese pulp and paper industry. as a non-wood chemical pulp, bwsp is known to have low bulk, low light scattering coefficient and poor drainage due to its high content of parenchyma cells. in this study, a high-quality aspen high-yield pulp (hyp) was used to improve the bwsp properties at the laboratory scale. the results indicate that adding 5–20% aspen hyp into unrefined or refined bwsp can minimize many of the drawbacks associated with the bwsp: improving its drainage, bulk, light scattering coefficient and opacity. the addition of a small amount (up to 20%) of aspen hyp can also significantly increase the tear index of bwsp with only a slight decrease of the tensile index.

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