Enhancement of Mechanical Properties of FDM-PLA Parts via Thermal Annealing

被引:170
|
作者
Wach, Radoslaw A. [1 ]
Wolszczak, Piotr [2 ]
Adamus-Wlodarczyk, Agnieszka [1 ]
机构
[1] Lodz Univ Technol, Inst Appl Radiat Chem, Fac Chem, Wroblewskiego 15, PL-93590 Lodz, Poland
[2] Lublin Univ Technol, Dept Automat, Nadbystrzycka 38D, PL-20618 Lublin, Poland
关键词
crystallinity degree; FDM; poly(lactic acid); radiation sterilization; thermal annealing; PROCESS PARAMETERS; MOLECULAR-WEIGHT; POLYLACTIC ACID; CRYSTALLIZATION; CRYSTALLINITY; DEGRADATION; MORPHOLOGY; LACTIDE; IMPACT; MELT;
D O I
10.1002/mame.201800169
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The objective of this study is to investigate the possibility of enhancing mechanical properties of poly(lactic acid) (PLA) samples processed by a rapid manufacturing (RM) technique by increasing PLA crystallinity degree via thermal annealing. The samples are manufactured by fused deposition modeling (FDM) at different temperatures and subsequently evaluated by three-point bending flexural and tensile tests. The polymer processed at 215 degrees C is thermally annealed over its glass transition temperature in order to increase the degree of crystallinity to the maximum attainable level as measured by the differential scanning calorimetry and confirmed by X-ray diffraction. The increase in the degree of crystallinity of FDM-PLA enhances flexural stress of the samples by 11-17%. The study also demonstrates applicability of radiation sterilization for FDM-PLA parts. Therefore, thermal annealing might be introduced into a standard RM technology of PLA, particularly for sterilizable customized implants, to efficiently improve their mechanical properties.
引用
收藏
页数:9
相关论文
共 50 条
  • [1] Mechanical Properties of FDM Printed PLA Parts before and after Thermal Treatment
    Chalgham, Ali
    Ehrmann, Andrea
    Wickenkamp, Inge
    POLYMERS, 2021, 13 (08)
  • [2] Mechanical and antibacterial properties of FDM additively manufactured PLA parts
    Nyabadza, Anesu
    Mc Donough, Louis Michael
    Manikandan, Arul
    Ray, Abhishek Basu
    Plouze, Anouk
    Muilwijk, Corne
    Freeland, Brian
    Vazquez, Mercedes
    Brabazon, Dermot
    RESULTS IN ENGINEERING, 2024, 21
  • [3] Effects of carbon nanotube on the thermal, mechanical, and electrical properties of PLA/CNT printed parts in the FDM process
    Yang, Leipeng
    Li, Shujuan
    Zhou, Xing
    Liu, Jia
    Li, Yan
    Yang, Mingshun
    Yuan, Qilong
    Zhang, Wei
    SYNTHETIC METALS, 2019, 253 : 122 - 130
  • [4] Process parameter optimisation and characterisation of fused deposition modelling-polylactic acid (FDM-PLA) parts
    Chowdhury, Sagnik
    Mandal, Abhishek
    Banik, Abhijit
    PLASTICS RUBBER AND COMPOSITES, 2024, 53 (5-7) : 125 - 136
  • [5] Analysis and Investigation the Effect of the Printing Parameters on the Mechanical and Physical Properties of PLA Parts Fabricated via FDM Printing
    Abdulridha, Hind H.
    Abbas, Tahseen F.
    ADVANCES IN SCIENCE AND TECHNOLOGY-RESEARCH JOURNAL, 2023, 17 (06) : 49 - 62
  • [6] Thermal annealing optimization for improved mechanical performance of PLA parts produced via 3D printing
    Kahya, Caglar
    Tuncel, Oguz
    Cavusoglu, Onur
    Tufekci, Kenan
    POLYMER TESTING, 2025, 144
  • [7] Investigation on the mechanical and thermal properties of metal-PLA composites fabricated by FDM
    Ulkir, Osman
    RAPID PROTOTYPING JOURNAL, 2024, 30 (10) : 2113 - 2122
  • [8] Assessing the effect of FDM processing parameters on mechanical properties of PLA parts using Taguchi method
    Maguluri, Nagarjuna
    Suresh, Gamini
    Rao, K. Venkata
    JOURNAL OF THERMOPLASTIC COMPOSITE MATERIALS, 2023, 36 (04) : 1472 - 1488
  • [9] Optimization of a combined thermal annealing and isostatic pressing process for mechanical and surface enhancement of Ultem FDM parts using Doehlert experimental designs
    de Bruijn, Ariadna Chueca
    Gomez-Gras, Giovanni
    Fernandez-Ruano, Laura
    Farras-Tasias, Laia
    Perez, Marco A.
    JOURNAL OF MANUFACTURING PROCESSES, 2023, 85 : 1096 - 1115
  • [10] Investigations of mechanical, thermal and morphological properties of FDM fabricated parts for friction welding applications
    Kumar, Ranvijay
    Singh, Rupinder
    Ahuja, I. P. S.
    MEASUREMENT, 2018, 120 : 11 - 20