| 廖恩泽， 刘禹， 张亚玲.基于主动混合技术的双组分硅胶打印工艺[J].轻工机械,2023,41(5):7-12 |
| 基于主动混合技术的双组分硅胶打印工艺 |
| Two Component Silicone Rubber Printing Process Based on Active Mixing |
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| DOI：10.3969/j.issn.1005 2895.2023.05.002 |
| 中文关键词: 增材制造 双组分硅胶 主动混合技术 控制变量法 硅胶泡沫 |
| 英文关键词:additive manufacturing two component silicone rubber active mixing technology control variable method silicone foam |
| 基金项目:国家自然科学基金：基于含动态共价键聚合物的多响应4D打印（22075258）。 |
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| 中文摘要: |
| 针对目前多数增材制造设备在加工双组分硅胶材料时存在材料属性与工艺参数无法匹配的问题，课题组提出将主动混合技术应用于双组分硅胶的高精度成型，并对此进行了研究。采用控制变量的方法探究了混合间隙以及混合流道长度对硅胶线条成型均匀性以及力学性能的影响；在分析其打印原理的基础上对双组分硅胶打印工艺进行了优化。研究结果表明：双组分硅胶线条的均匀性及力学性能的稳定性随着混合流道长度的增大而增大，而在一定范围内随着混合间隙的减小而增大。通过优化后的工艺参数实现了复杂晶格结构的硅胶泡沫打印，证明了利用主动混合技术打印双组分硅胶的可行性。 |
| 英文摘要: |
| In order to solve the problem that the material properties and process parameters cannot be matched in processing two component silicone rubber in most of current additive manufacturing equipment, active mixing was proposed to apply to the high resolution molding of two component silicone rubber and the research was carried out. The method of control variables was used to explore the influence of mixing gap and length of mixing channel on the forming uniformity and mechanical properties of two component silicone rubber line; and the two component silicone rubber printing process was optimized based on the analysis of its printing principle. The results indicate that the forming uniformity and mechanical property stability of two component silicone rubber line increase with the increase of length of mixing channel, and increase with the decrease of mixing gap within a certain range. The silicone foam with complex lattice structure is printed through the optimized process parameters, which proves the feasibility of using active mixing to print two component silicone rubber. |
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