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．

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．