溶解漿纖維形態(tài)結(jié)構(gòu)對(duì)其溶脹-溶解行為及流變性能的影響研究

打開(kāi)文本圖片集

作者簡(jiǎn)介：錢(qián)新玉，在讀碩士研究生；研究方向：溶解漿纖維的溶脹和溶解性能。

關(guān)鍵詞：溶解漿；纖維形態(tài)結(jié)構(gòu)；溶脹性能；溶解性能；流變性能中圖分類(lèi)號(hào)：TS71 文獻(xiàn)標(biāo)識(shí)碼：A DOI：10.11980/j.issn.0254-508X.2025.08.011

Study on the Effect of Fiber Morphological Structure on the Swelling-dissolution Behavior and Spinnability of Dissolving Pulp

QIAN Xinyu 1，2，3 YANG Shuo2* WANG Xin1，3 GUO Yuqian1.3 CHENG Yun1，3 HOU Leilei1，3 CHEN Linghua1.3 ZHANG Hongjie1，.3 *

（1.ChinNallpdRsechsiuteCdein;holfLghtdustrieedEeKeyLabfBiobasedberaterials，hinaextiledustryKeyLbofHghperformanceFibersWet-aidouoenaterials，nKy LabofPulpandPaper，Tianjin UniversityofScienceandTechnology，Tianjin，3OO457;3.National EngineeringLabfor Pulp andPaper，Beijing，） （ E-mail： yangshuo1018@tust. edu.cn； hongjiezhang@cnppri.com）

Abstract：Thefiber（S-HK，S-PHK-R30，-HK-R50）morpholoicalsructureofthesoftwoodpre-hydrolysisraftpulpwasregulatedbyusingfibefractioaionTeifueneoffiberszedestuctuefdisovingpulpibsontheswellngdisolutioeaviod logicalpropertisicellos-NO-watersolutionsuderteLyocellprocesasinvestigatedTersultssowedthatomparedwith S-PHK-R30，the average length of S-PHK-R50 decreased by 50. 4% ，and the specific surface area increased by 123.6% . This resulted in a about 10O percentage points increase in NMMO absorption value and a 25min reduction in dissolution time when the dissolving pulp was swolleninamassratioof 70% NMMO solution for2O min. Thesmall fiber size and high specific surface area were beneficial for promoting thepenetration of aqueous NMMO solution inside the pulp fibers， therebyachieving abetter swelling effect and reducing the required dissolution time.In addition，the fibermorphological structure between fiber fractions of dissolving pulp significantly affected the steady-staterheological properties ofcellulose-NMMO-watersolutions 《中國(guó)造紙》2025年第44卷第8期

制漿與造紙

but did not affect the dynamic rheological properties. Key words：dissolvingpulp;fiber morphologicalstructure;sweling property；disolution property;rheologicalproperties

Lyocell纖維是將天然纖維素溶解在N-甲基嗎啉-N-氧化物（NMMO）水溶液中，再經(jīng)過(guò)干噴濕紡工藝制備而成的再生纖維素纖維，因其原料可再生、生產(chǎn)過(guò)程無(wú)污染、產(chǎn)品棄后可生物降解以及卓越的纖維性能被譽(yù)為21世紀(jì)很有發(fā)展前景的“綠色纖維”。（剩余10707字）