| 摘要: |
| 研究了乳胶粉、纤维素醚、淀粉醚掺量对水下3D打印建筑砂浆（3DP-BM）流变性能、工作性能、抗分散性能以及力学性能的影响.结果表明：未掺乳胶粉或纤维素醚，以及淀粉醚掺量过高都会导致3DP-BM无法在水下进行打印；同时掺加乳胶粉、纤维素醚和淀粉醚，3DP-BM具有良好的工作性能、适宜的力学强度和水下抗分散性能；当乳胶粉掺量为0.500%、纤维素醚掺量为0.100%、淀粉醚掺量为0.025%时，3DP-BM具有适宜的可操作时间，良好的水下抗分散性能，以及较高的水下强度和水下堆积高度. |
| 关键词: 3D打印 聚合物 水下 性能 |
| DOI：10.3969/j.issn.1007-9629.2023.06.014 |
| 分类号:TU528.01 |
| 基金项目:国家自然科学基金资助项目（51878480，52078369） |
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| Effect of Polymers on Performance of Underwater 3D Printing Building Mortar |
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YANG Qianrong1,2, XING Changxiang2, ZHAO Zongzhi2, JIANG Zhengwu1,2
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1.Key Laboratory of Advanced Civil Engineering Materials of Ministry of Education，Tongji University，Shanghai 201804，China;2.School of Materials Science and Engineering，Tongji University，Shanghai 201804，China
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| Abstract: |
| The effects of latex powder （FX）， cellulose ether （HM） and starch ether （KH） on rheological properties， working properties， anti-dispersant properties and mechanical properties of underwater 3D printing building mortar （3DP-BM） were studied. The results show that 3DP-BM cannot be printed underwater without FX or HM， or with too much KH. Mixed with FX， HM and KH together， 3DP-BM has good working performance， appropriate mechanical strength and underwater anti-dispersion performance. When the content of FX， HM and KH is 0.500%， 0.100% and 0.025% respectively， 3DP-BM has suitable operational time， good underwater anti-dispersion property， and high underwater strength and underwater stacking height. |
| Key words: 3D printing polymer underwater performance |
