原位调控细菌纤维素微凝胶孔径构建抗高表活“岛-链”触变网络

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关键词：细菌纤维素微凝胶；孔径调控；岛-链网络；流变行为中图分类号：TS71 文献标识码：A DOI： 10.11980/j.issn.0254-508X.2025.10.009

In-situPore Regulationof BacterialCeluloseMicrogelforHigh-surfactant-resistant“Island-Chain”Network

SHI ZhipingWANG Yingchao LI Kai* （Schoolof Chemical Enginering，Kunming UniversityofScienceand Technology，Kunming，Yunnan Province，50500） （ *E -mail：lkjnkmwh@hotmail.com）

Abstract：Inthisstudy，hierarchical-porebacterialcelulosemicrogels（BC-microgel）werepreparedviamethodsincludngCaCO 3 content regulation （ 0～1200mg/L ），particle size screening （0.5～100μm ）.Then，AEO/BC-miccrogel/HPMC composite systems were constructed bycombining withhydroxypropylmethylcellose（HPMC）andfatyalcohol-polyoxyethyleneether（AEO）.Theresultsshowedthatwhen the CaCO 3 content was 3OO mg/L and the particle size was 15μm ，the microgel structure with an average pore diameter of 3. 17μm could be formed.Atthis point，the“island-chain”network was stable and the yield stressof the composite system reached 0.89Pa ，and the thixotropic loop area increased to O.58 Pa/s. Excessive CaCO 3 or improper particle size'lead to disorder in pore structure and deterioration of performance.Thisstudyelucidatedthetructureactiityelatoshipetweenporesizergulationdnetwrkpefomancethbyproviding a theoretical basis for the functional development of high-concentra-tion surfactant systems.

Keywords：bacterialcellulose microgel；pore size regulation；island-chainnetwork；rheological behavior

在高浓度表面活性剂体系中实现固体粒子（如微胶囊、酶或抗菌剂等）的稳定悬浮，是推动洗涤剂、涂料等功能性产品向浓缩化、高附加值化发展的核心挑战-3]。（剩余15196字）