马尾松贮存期对其化学组分及制浆性能的影响研究

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关键词：溶解浆；贮存期；化学组分； α -纤维素；反应性能中图分类号：TS74 文献标识码：A DOI：10.11980/j.issn.0254-508X.2025.09.012

Study on the Impact of Masson Pine Storage Period on the Chemical Composition and Pulping properties

LIN Xiaohe（Fujian Qingshan Paper Industry Co.，Ltd.，Sanming，Fujian prorince，365500）（E-mail： linsiqiu2008@qq.com）

Abstract：TispapersudiedtecangeofsrageperodonecemicalcompositionandcotentofMasonpineawmaterialdfurter investigateditsoeldosityghsactiitofssoiatealriolisd bleachingproceesWithteinceaseofstoragei，econtentofaOextractivandcid-insoublelgiofodchipsgraduall creased （from 16. 16% and 27.33% of fresh wood to 17.33% and 28. 53% of5-month stored wood），while the holocellulose content and （204 α -cellulose content showed decreasing trend （from 73.86% and 33.89 % of fresh wood to 71.24% and 32. 04% of 5-month stored wood）. Withtheamountofalkalirequiedforkraftpulpingafterpr-hdrolysisgraduallincreased，andtheyeldandviscosityofubleachdpulp gradually decreased.After bleaching treatment（OD （EP）D），the whiteness of pulp was increased to above 90% . The degree of polymeriza0

tion，the content of α -celluloseand reactivitywere 609，91.85% and587.4s of5-month storedwood，while the reactivityof9-month and 12-month stored wood were too low to be detected.

Key words：dissolving pulp；storage period;chemical composition; α -cellulose；reactivity

20世纪以来，人造纤维3大品种，即黏胶纤维、铜氨纤维和醋酯纤维实现了产业化并迅速发展，其长纤维产品可作为真丝的替代品，短纤维可用以替代羊毛和棉花，因而得到普遍应用。（剩余7626字）