景观用的偏高岭土-地聚物纤维材料制备及性能  

Preparation and properties test of metakaolin-geopolymer fiber material for landscape use

作　　者：张艺尧 王秋利[2] 李俊梅[3] ZHANG Yiyao;WANG Qiuli;LI Junmei(Yangling Vocational and Technical College,Yangling 712100,China;Ankang College,Ankang 725000,China;Business School of Xinjiang Vocational University,Urumqi 830013,China)

机构地区：[1]杨凌职业技术学院,陕西杨凌712100 [2]安康学院,陕西安康725000 [3]新疆职业大学商学院,新疆乌鲁木齐830013

出　　处：《化工科技》2024年第4期6-10,共5页Science & Technology in Chemical Industry

基　　金：国家自然科学基金项目(72262028);陕西省科技厅青年基金项目(2021JQ-835);陕西省院士专家工作站资助项目(21JK0464);杨凌职业技术学院2022年院内基金项目(ZK22-62)。

摘　　要：针对传统园林景观造型材料耐久性差的问题,制备一种偏高岭土-地聚物纤维材料,并对制备材料的性能进行研究。结果表明,偏高岭土-地聚物纤维材料的最佳配比为m(水)∶m(胶材料)=0.35、w(纤维)=12%、水玻璃模数1.95、w(偏高岭土)=16%;该条件下制备的地聚物材料养护时间从10 d增至60 d,静曲强度从8.3 MPa降至6.5 MPa;经过冻融处理后,偏高岭土-地聚物静曲强度从9.8 MPa降至7.0 MPa,静曲强度损失率约为28.8%,内结合强度为1.1 MPa,握螺钉力强度为1.854 kN,吸水厚度膨胀率为1.28%,浸水后静曲强度为8.2 MPa;改性的地聚物纤维材料各项性能均符合GB/T 24312—2009标准,可在园林景观中发挥作用。In response to the problem of poor durability of materials used in traditional garden landscape modeling,a type of metakaolin-geopolymer fiber material is proposed,and the performance of the prepared material is studied.The experimental results show that the optimal ratio of metakaolin-geopolymer fiber material is:water cement ratio is 0.35,flax short fiber content is 12%,water glass modulus is 1.95,and metakaolin content is 16%.After increasing the curing time of the geopolymer material prepared under this condition from 10 days to 60 days,its static bending strength decreases from 8.3 MPa to 6.5 MPa.After freeze-thaw treatment,the static bending strength of metakaolin-geopolymer decreases from 9.8 MPa to 7.0 MPa,the loss rate of static bending strength is about 28.8%,the internal bonding strength is 1.1 MPa,the grip screw strength is 1.854 kN,the water absorption thickness expansion rate is 1.28%,and the static bending strength after immersion is 8.2 MPa.All properties of the geopolymer fiber material modified in this experiment meet the standard requirements of GB/T 24312—2009,which can play a role in garden landscapes.

关 键 词：静曲强度 园林景观造型 环保材料 建筑装饰 

分 类 号：TQ177[化学工程—硅酸盐工业]