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本文主要研究双螺杆法分离胡麻韧皮部和木质部纤维所得纤维的制浆性能,以及加入NaOH等药品对其制浆性能的促进作用。结果发现,双螺杆法可使胡麻韧皮部和木质部纤维得以很好的分离(总得率可达40.4%),加入药品后韧皮部纤维100g/m2定量纸张的抗张和撕裂指数以及耐折度可达56.36 N.m/g、42.84 mN.m2/g和168次,比不加药品是高出了25%、30%和60%左右。与此同时,木质部纤维在经过磨浆处理后也可成浆,其50g/m2定量纸张的抗张和撕裂指数以及耐折度可达42.47N.m/g、5.30 mN.m2/g和10次,与不加药品相比提高了约100%、70%和200%。因此,综合可知,双螺杆法可将胡麻韧皮部和木质部纤维得以较好的分离,加入一定量NaOH等化学药品可提高其制浆性能,最终可针对两种纤维的性质,将二者进行合理利用,提高胡麻作为制浆造纸原料的利用效率。
In this paper, the pulping performance of the fiber obtained from the separation of flax phloem and xylem fiber by the twin-screw method and the promotion of its pulping performance by adding NaOH and other drugs were studied. The results showed that the billet method could separate the phloem and xylem fibers well (the total yield was 40.4%), the tensile and tear index of phloem fiber 100g / m2 after adding the drug and the folding resistance 56.36 Nm / g, 42.84 mN.m2 / g and 168 times, which are 25%, 30% and 60% higher than those without drugs. At the same time, the xylem fibers can be slurried after being pulverized. The tensile and tear index and the folding resistance of the xylem fibers of 50g / m2 are up to 42.47Nm / g, 5.30 mN.m2 / g and 10 times , Increased by about 100%, 70% and 200% compared with no drug. Therefore, we can know that the twin-screw method can be flax phloem and xylem fiber to be better separation, adding a certain amount of NaOH and other chemicals can improve their pulping performance, and ultimately for the nature of the two fibers, both the rational use of , Improve flax as pulp and paper raw material utilization efficiency.