华南理工大学学报(自然科学版) ›› 2015, Vol. 43 ›› Issue (2): 144-150.doi: 10.3969/j.issn.1000-565X.2015.02.022

• 材料科学与技术 • 上一篇    

三维打印器件后处理液研究

程江1 吴皎皎1 徐守萍1 周东卫2 周亮3   

  1. 1. 华南理工大学 化学与化工学院,广东 广州 510640; 2. 佛山市赫宇化工有限公司,广东 佛山 528313;3. 广东轻工职业技术学院 轻化工程系,广东 广州 510300
  • 收稿日期:2014-07-01 修回日期:2014-09-05 出版日期:2015-02-25 发布日期:2014-12-31
  • 通信作者: 程江(1965-),男,博士,教授,主要从事精细化工研究. E-mail:cejcheng@scut.edu.cn
  • 作者简介:程江(1965-),男,博士,教授,主要从事精细化工研究.
  • 基金资助:

    广东省教育部产学研结合项目(2012B091100442)

Infiltrants for Post-Processing of Three-Dimension Printing Specimens

Cheng Jiang1 Wu Jiao-jiao1 Xu Shou-ping1 Zhou Dong-wei2 Zhou Liang3   

  1. 1. School of Chemistry and Chemical Engineering,South China University of Technology,Guangzhou 510640,Guangdong,China;2. Foshan Heyu Chemical Co. ,Ltd. ,Foshan 528313,Guangdong,China; 3. Department of Light Chemical Engineering,Guangdong Industry Technical College,Guangzhou 510300,Guangdong,China
  • Received:2014-07-01 Revised:2014-09-05 Online:2015-02-25 Published:2014-12-31
  • Contact: 程江(1965-),男,博士,教授,主要从事精细化工研究. E-mail:cejcheng@scut.edu.cn
  • About author:程江(1965-),男,博士,教授,主要从事精细化工研究.
  • Supported by:
    Supported by the Project of Integration of Industry,Education and Research of Guangdong Province and Ministry of Education of China(2012B091100442)

摘要: 分析了不同的填充强化剂(后处理 A 液)、不同的后处理 B 液基料、后处理 B 液中水性环氧乳液的掺量及后处理液浸泡时间对石膏基打印器件耐水性、抗压强度、尺寸偏差、表面微观结构的影响. 结果表明:经纳米硅超硬固化剂处理后的打印器件抗压强度大幅提高,纳米硅超硬固化剂最适宜作为后处理 A 液;水性聚氨酯乳液 PU-202B 最适宜作为后处理 B 液的基料;后处理 B 液中加入水性环氧乳液,处理后打印器件的抗压强度增加、吸水率降低,但水性环氧乳液含量增加到一定程度后会出现尺寸偏差;后处理 A、B 液最佳浸泡时间分别为 130 s 和 35 s;先浸泡后处理 A 液、后浸泡后处理 B 液的打印器件具有抗压强度高、吸水率小、表面较光滑、不脱粉等优良性能.

关键词: 三维打印, 打印器件, 后处理液, 抗压强度, 吸水率

Abstract: This paper deals with the water resistance,compressive strength,dimensional deviation and surficial mi-crostructure of gypsum-based three-dimension printing specimens affected by filling enhancers(namely infiltrant A),base materials of infiltrant B,dosage of waterborne epoxy emulsion in infiltrant B and immersion time. The re-sults show that(1) nano-silicone superhard curing agent is the most suitable enhancer for infiltrant A because it sig-nificantly improves the compressive strength of printing specimens; (2) waterborne polyurethane emulsion PU-202B is the most appropriate base material of infiltrant B; (3) the addition of waterborne epoxy emulsion in infiltrant B improves the compressive strength and water resistance of printing specimens,but excess waterborne epoxy emulsion may result in a dimensional deviation of the specimens; (4) the best immersion time for the three-dimension print-ing specimens into infiltrants A and B is 130s and 35s,respectively; and (5) after being immersed in infiltrant A and subsequently in infiltrant B,the specimens are of high compressive strength,weak water absorption,smooth surface and strong bond capability.

Key words: three-dimension printing, printing specimen, post-processing infiltrant, compressive strength, water absorption

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