中国塑料2025，Vol.39Issue(9)：81-85,5.DOI:10.19491/j.issn.1001-9278.2025.09.013
TPU气辅3D打印中高温高压气流对制品性能的影响
Effects of high-temperature and high-pressure airflows on product performance in gas-assisted 3D printing of TPU
摘要
Abstract
In this study,a novel high-temperature,high-pressure gas-assisted 3D printing method was proposed to en-hance interlayer bonding strength in polymer additive manufacturing.Using thermoplastic polyurethane(TPU)as a mod-el material,the effects of this approach on the temperature field distribution,tensile strength,cross-sectional morpholo-gy,and surface chemistry of printed parts were systematically investigated.Experimental results indicated that the gas-assisted process achieved a uniform,elevated temperature field in TPU filaments,promoting effective interlayer fusion while maintaining low porosity(≤2%).This optimization leads to a 96%improvement in tensile strength compared to conventional 3D printing methods.Furthermore,surface characterization confirmed that high-temperature oxygen expo-sure did not induce thermal oxidation or chemical degradation of the printed material.These findings established an effec-tive strategy for significantly improving the mechanical performance of polymer 3D-printed components without compro-mising material integrity.关键词
气体辅助/温度场/层间结合/力学强度Key words
gas-assisted/inter-layer bonding/temperature field/mechanical strength分类
化学化工引用本文复制引用
刘英兰,肖建华,高延峰,胥世康..TPU气辅3D打印中高温高压气流对制品性能的影响[J].中国塑料,2025,39(9):81-85,5.基金项目
国家自然科学基金项目(52063021) （52063021）
