纖維素酶處理對深度預水解硫酸鹽竹溶解漿性能的影響

打開文本圖片集

作者簡介：林小河，高級工程師；研究方向：制漿造紙新技術。

關鍵詞：竹溶解漿；深度預水解；纖維素酶；Fock反應性能中圖分類號：TS745 文獻標識碼：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，F(xiàn)ujianAgricultureand Forestry University， Fuzhou，F(xiàn)ujianProvince，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

溶解漿是一種高純度的化學漿，其具有高 α -纖維素含量（ 90%～99% ）、低木質(zhì)素和低半纖維素含量的特點。（剩余8457字）