纤维素酶处理对深度预水解硫酸盐竹溶解浆性能的影响

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作者简介：林小河，高级工程师；研究方向：制浆造纸新技术。

关键词：竹溶解浆；深度预水解；纤维素酶；Fock反应性能中图分类号：TS745 文献标识码：A DOI： 10.11980/j.issn.0254-508X.2025.08.014

Effect of Celulase Treatment on the Performance of Deep Prehydrolysis Sulfate Bamboo Dissolving Pulp

LIN Xiaohe'GUO Xuefang²CHEN Lihui²HU Huichao²LI Jianguo² （1.FujianQigCo，dmignroce;lgftelsineing，alF Grassand Administration KeyLabfor PlantFiberFunctional Materials，FujianAgricultureand Forestry University， Fuzhou，FujianProvince，350108）

Abstract：Thissudyemplodthbamboasthawmaterialstomanufacturethdisolvingpulp，andanalydtheectsofdepprehy drolysisandcellulasetreatmentsontheperformanceofbambodisolvingpulp.Teresultssowedthatextendingthetieofprehdolysis treatmentdecreasedthehemicellosecontenthileimprovedtheockreactivityHwever，teoverlongprehydrolysistreatmentladedto the low content of α -celulose inthe bamboodisslving pulp.Celluase treatmentcut thecellulose molecularchain and“etched”thedissolvingpulpfber，andthusmodifiedthefibermorphologyandmicro-nanostructure.Asaesult，celulasetreatmenreducedthedegreeofpo lymerization and α -celulosecontent and enhanced theFock reactivity.Compared with the sample with 135min prehydrolysisand coling andbleachingtreatment，thedpprehydrolyss-sulfatebmboodisolvingpulpwithprehdrolysis（85in），cookingandbleacingand 0.25mg/g cellulase treatments，had the decreased degree of polymerization from 9O5 to 442（with areduction by 51.2% ），reduced α -cellulose content from 97% to 92% （with a reduction by 5 percentage points），and increased Fock reactivity from 24% to 75% （with an increase by 51 percentage points）.

Key words：bamboo dissolving pulp；deep prehydrolysis；cellulase;Fock reactirity

溶解浆是一种高纯度的化学浆，其具有高 α -纤维素含量（ 90%～99% ）、低木质素和低半纤维素含量的特点。（剩余8457字）