选择性激光烧结聚丙烯工艺-结构-性能的研究

›› 2023, Vol. 37 ›› Issue (10): 50-55.

选择性激光烧结聚丙烯工艺-结构-性能的研究

张恒源¹,刘涛²,张师军¹,刘建叶³

1. 中石化（北京）化工研究院有限公司
2. 上海克劳斯玛菲机械有限公司
3. 中国石化北京化工研究院

收稿日期:2023-05-18 修回日期:2023-05-30 出版日期:2023-10-26 发布日期:2023-10-26

Study on processing-structure-properties of selective laser sintered of polypropylene

Received:2023-05-18 Revised:2023-05-30 Online:2023-10-26 Published:2023-10-26

摘要/Abstract

摘要： 系统地评价了商用选择性激光烧结（SLS）聚丙烯（PP）的加工性能和力学性能，并比较了它和注射成型（IM）样品的差异。结果表明，预热温度、激光功率和能量密度作为选择性激光烧结的3个重要工艺参数，对最终产品的性能有很大影响。在选择工艺参数时，必须同时兼顾制品的力学性能和尺寸精度。本文的独特之处在于定量分析了不同工艺条件下选择性烧结带的结晶形态，建立了工艺条件、结晶晶型和力学性能之间的关系。通过调整选择性激光烧结的工艺参数，可获得不同晶型含量的样品，以便调控制品的力学性能。

关键词: 聚丙烯, 选择性激光烧结, 工艺参数, 晶型, 力学性能

Abstract: In this paper， the processability and mechanical properties of commercial polypropylene were systematically evaluated， and the differences between sinter laser sintering （SLS） and injection molding were compared. The results indicated that preheating temperature， laser power and energy density were three important process parameters for SLS to generate a great impact on the performance of final products. When the process parameters were selected， both mechanical properties and machining accuracy should be considered. This study exhibits uniqueness in the quantitative analysis of the crystal forms of the selective sintering strips under different technological conditions， and the relationship between technological conditions， crystalline properties， and mechanical properties was established. Through adjusting the process parameters of SLS， different crystal contents could be obtained for molded samples， and therefore then the mechanical properties of the sample could be regulated.

Key words: polypropylene, selective laser sintering, process parameter, crystal form, mechanical property

张恒源刘涛张师军刘建叶. 选择性激光烧结聚丙烯工艺-结构-性能的研究[J]. , 2023, 37(10): 50-55.

参考文献

[1] Kumar S. Selective laser sintering: a qualitative and objective approach[J]. Jom, 2003, 55: 43-47.
[2] Kruth J P, Wang X, Laoui T, et al. Lasers and materials in selective laser sintering[J]. Assembly Automation, 2003, 23(4): 357-371.
[3] Kruth J P, Levy G, Klocke F, et al. Consolidation phenomena in laser and powder-bed based layered manufacturing[J]. CIRP annals, 2007, 56(2): 730-759.
[4] Rietzel D, Drexler M, Kühnlein F, et al. Influence of temperature fields on the processing of polymer powders by means of laser and mask sintering technology[C]//2011 International Solid Freeform Fabrication Symposium. University of Texas at Austin, 2011.
[5] S. Mazur: Polymer powder technology[M]. Wiley, 1995.
[6] Yuan S, Zheng Y, Chua C K, et al. Electrical and thermal conductivities of MWCNT/polymer composites fabricated by selective laser sintering[J]. Composites Part A: Applied Science and Manufacturing, 2018, 105: 203-213.
[7] Yuan S, Chua C K, Zhou K. 3D‐printed mechanical metamaterials with high energy absorption[J]. Advanced Materials Technologies, 2019, 4(3): 1800419.
[8] Zhu W, Yan C, Shi Y, et al. Investigation into mechanical and microstructural properties of polypropylene manufactured by selective laser sintering in comparison with injection molding counterparts[J]. Materials & Design, 2015, 82: 37-45.
[9] Tan L J, Zhu W, Sagar K, et al. Comparative study on the selective laser sintering of polypropylene homopolymer and copolymer: Processability, crystallization kinetics, crystal phases and mechanical properties[J]. Additive Manufacturing, 2021, 37: 101610.
[10] Ho H C H, Gibson I, Cheung W L. Effects of energy density on morphology and properties of selective laser sintered polycarbonate[J]. Journal of Materials Processing Technology, 1999, 89: 204-210.
[11] Krigbaum W R, Uematsu I. Heat and entropy of fusion of isotactic polypropylene[J]. Journal of Polymer Science Part A: General Papers, 1965, 3(2): 767-776.
[12] Lezak E, Bartczak Z, Galeski A. Plastic Deformation of the γ Phase in Isotactic Polypropylene in Plane-Strain Compression[J]. Macromolecules, 2006,39:4811-4819.
[13] Lezak E, Bartczak Z. Plastic Deformation of the γ Phase Isotactic Polypropylene in Plane? Strain Compression at Elevated Temperatures[J]. Macromolecules, 2007, 40(14): 4933-4941.
[14] Alamo R G, Kim M H, Galante M J, et al. Structural and kinetic factors governing the formation of the γ polymorph of isotactic polypropylene[J]. Macromolecules, 1999, 32(12): 4050-4064.

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