麦草的酶法化学制浆(Ⅱ)--酶法浆漂白性能的研究

对麦草酶法化学浆的漂白性能进行了研究，结果表明，无论是采用有氯漂白，还是采用TCF漂白，麦草酶法化学浆均具有良好的漂白性能，且漂白酶法浆有较好的强度性质；采用XHP漂白程序，当有效氯用量为7％和H2O2用量为1％时，漂白酶法浆的白度可超过90％ISO，裂断长达到5010m；漂白前对浆料进行木聚糖酶预处理可以改善后续漂白段的漂白效率，提高漂白浆白度，同时对漂白浆的物理性能也会产生一定的影响。

Enzymaticn Chemical Pulping of Wheat Straw:(2)Bleachability of the Pulp

Bleachability of the pulp from enzymatic chemical pulping of wheat straw was researched in the paper The results of experiments showed that ble achability of enzymatic-chemical pulp of wheat straw was very well Using chori n e-containing bleaching and total-chlorine-free bleaching,the bleached pulp w ith high brightness and high strength properties could be produced ISO brightness of the bleached enzymatic-pulp reached 90 1% by XHP sequence bleaching with ad d ing 7% effective chlorine and 1% H 2O 2,breaking length of the bleached pulp reac hed 5010 meters Xylanase pretreatment prior to bleaching improved the efficienc y of subsequent bleaching and increased bleached pulp brightness,but physical p roperties of the bleached pulp were influenced in certain degree