改性木质纤维土壤保水材料的制备及性能研究

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作者简介：，在读硕士研究生；研究方向：生物基高分子吸水聚合物。

关键词：木粉；聚谷氨酸；紫外光聚合；复合土壤保水材料中图分类号：TS79 文献标识码：A DOI： 10.11980/j.issn.0254-508X.2025.04.009

Study on Preparation and Performances of Modified Wood Fiber Soil Water Retention Materials

WANG XiaoyongNIU Junjie ZHANG Liying QIU YetongWANG Huowang LIU Zehua*

（NationalKeyLabofBbasedFiberMaterials，ianjinKeyLbofPulpandPape，hinaKeyabofPapermakingandBiomasefining

forLightIndustrKebgefoceFibet-doalsfextiledstrinUesity Technology，Tianjin，） （*E-mail： zehual@tust. edu. cn）

Abstract：Inthisstudy，woodpowderproducedduringoodprocesingasusedas thefersource.Afterpretreamentbyhemicalo chanicalpulpingandalkalinehydrogenperoxidebleaching，odifiedoodfber（CRF）wasbtainedbyEMPOoxidationandcoldmiling. Subsequently，tecompositesoilwaterrelentionmaterial（GA-CRFSWR）waspreparedbyulravioletpolymerizaionwithpolygutaicacid （PGA），acrylic acid （AA），and acrylamide（AM）. The results showed that adding CRF with the dosage of 6 % could significantly improve the mechanicalprotiofolatereetateialdompesiergsdfroatoao age of PGA increased from 3 % to 12 % ，the compressive strength further increased to O. O46 7 MPa.When the pH value was 7 and the water temperature was ，thewater absorptionrate and waterretentionrateofPGA-CRF/SWRreached thebest，and whenthedosages of CRFand PGA were both 6 % ，the best water absorption rate of PGA-CRF/SWR in deionized water and tap water were 688.5 and 298.7 g / g ，respectively，and the water retention rate were 6 5 5 . 7 and 2 7 7 . 9 g / g ，After5 cycles of water absorption and swelling，the water absorption rate could still reach 6 2 . 2 % of the initial value，the residual mass after soil burial for 6O days was 7 9 . 2 % ，which showed good thermal stability before 309.1℃. Key words：wood powder；polyglutamic acid;UV polymerization；composite soil water retention material

农业生产是人类生存和发展的基础，水资源则是影响农业可持续发展的重要因素之一。（剩余20015字）