{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,11,4]],"date-time":"2026-11-04T17:07:33Z","timestamp":1793812053437,"version":"4.6.1"},"reference-count":35,"publisher":"MDPI AG","issue":"17","license":[{"start":{"date-parts":[[2024,9,9]],"date-time":"2024-09-09T00:00:00Z","timestamp":1725840000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Materials"],"abstract":"<jats:p>This study aims to develop thermoplastic (TP) and thermoset (TS) based mixed matrix composite using design dependent physical compatibility. Using thermoplastic-based (PLA) skeletal lattices with diverse patterns (gyroid and grid) and different infill densities (10% and 20%) followed by infiltration of two different thermoset resin systems (epoxy and polyurethane-based) using a customized FDM 3D printer equipped with a resin dispensing unit, the optimised design and TP-TS material combination was established for best mechanical performance. Under uniaxial tensile stress, the failure modes of TP gyroid structures with polyurethane-based composites included \u2018fiber pull-out\u2019, interfacial debonding and fiber breakage, while epoxy based mixed matrix composites with all design variants demonstrated brittle failure. Higher elongation (higher area under curve) was observed in 20% infilled gyroid patterned composite with polyurethane matrix indicating the capability of operation in mechanical shock absorption application. Electron microscopy-based fractography analysis revealed that thermoset matrix properties governed the fracture modes for the thermoplastic phase. This work focused on the strategic optimisation of both toughness and stiffness of mixed matrix composite components for rapid fabrication of construction materials.<\/jats:p>","DOI":"10.3390\/ma17174426","type":"journal-article","created":{"date-parts":[[2024,9,9]],"date-time":"2024-09-09T05:06:06Z","timestamp":1725858366000},"page":"4426","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":11,"title":["An Investigation into Mechanical Properties of 3D Printed Thermoplastic-Thermoset Mixed-Matrix Composites: Synergistic Effects of Thermoplastic Skeletal Lattice Geometries and Thermoset Properties"],"prefix":"10.3390","volume":"17","author":[{"given":"Saleh","family":"Khanjar","sequence":"first","affiliation":[{"name":"Mechanical Engineering Department, Shumaker Research Building, University of Louisville, Kentucky, KY 40208, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Srimanta","family":"Barui","sequence":"additional","affiliation":[{"name":"Mechanical Engineering Department, Shumaker Research Building, University of Louisville, Kentucky, KY 40208, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2564-8682","authenticated-orcid":false,"given":"Kunal","family":"Kate","sequence":"additional","affiliation":[{"name":"Mechanical Engineering Department, Shumaker Research Building, University of Louisville, Kentucky, KY 40208, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kameswara Pavan Kumar","family":"Ajjarapu","sequence":"additional","affiliation":[{"name":"Mechanical Engineering Department, Shumaker Research Building, University of Louisville, Kentucky, KY 40208, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2024,9,9]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Grumezescu, V., and Grumezescu, A.M. (2019). Introduction in thermoplastic and thermosetting polymers. Materials for Biomedical Engineering, Elsevier. Chapter 1.","DOI":"10.1016\/B978-0-12-816874-5.00001-3"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"162","DOI":"10.1016\/j.compositesb.2016.06.005","article-title":"A study on the failure behavior and mechanical properties of unidirectional fiber reinforced thermosetting and thermoplastic composites","volume":"99","author":"Ma","year":"2016","journal-title":"Compos. Part B Eng."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"453","DOI":"10.1016\/j.matpr.2020.04.297","article-title":"Comparison of Properties of Carbon Fiber Reinforced Thermoplastic and Thermosetting Composites for Aerospace Applications","volume":"24","author":"Sudhin","year":"2020","journal-title":"Mater. Today Proc."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"105870","DOI":"10.1016\/j.compositesa.2020.105870","article-title":"New approaches to bonding thermoplastic and thermoset polymer composites","volume":"133","author":"Zhang","year":"2020","journal-title":"Compos. Part A Appl. Sci. Manuf."},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"298","DOI":"10.1016\/j.compstruct.2017.03.044","article-title":"Thermoplastic\/thermoset multilayer composites: A way to improve the impact damage tolerance of thermosetting resin matrix composites","volume":"171","author":"Sonnenfeld","year":"2017","journal-title":"Compos. Struct."},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"2968","DOI":"10.4028\/www.scientific.net\/MSF.706-709.2968","article-title":"Thermoplastic Adhesive for Thermosetting Composites","volume":"706\u2013709","author":"Hou","year":"2012","journal-title":"Mater. Sci. Forum"},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"172","DOI":"10.1016\/j.compositesa.2015.07.002","article-title":"On avoiding thermal degradation during welding of high-performance thermoplastic composites to thermoset composites","volume":"77","year":"2015","journal-title":"Compos. Part A Appl. Sci. Manuf."},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"9108458","DOI":"10.1155\/2022\/9108458","article-title":"The Effect of Polymer Composite Materials on the Comfort of Sports and Fitness Facilities","volume":"2022","author":"Feng","year":"2022","journal-title":"J. Nanomater."},{"key":"ref_9","doi-asserted-by":"crossref","unstructured":"Mallick, P.K. (2021). Thermoplastics and Thermoplastic\u2013Matrix Composites for Lightweight Automotive Structures. Materials, Design and Manufacturing for Lightweight Vehicles, Woodhead Publishing. [2nd ed.]. Chapter 5.","DOI":"10.1016\/B978-0-12-818712-8.00005-7"},{"key":"ref_10","doi-asserted-by":"crossref","unstructured":"Rowe, J. (2012). Polymer and Composite Moulding Technologies for Automotive Applications. Advanced Materials in Automotive Engineering, Woodhead Publishing. Chapter 8.","DOI":"10.1533\/9780857095466"},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"106525","DOI":"10.1016\/j.compositesa.2021.106525","article-title":"Recent developments on the overmolding process for the fabrication of thermoset and thermoplastic composites by the integration of nano\/micron-scale reinforcements","volume":"149","author":"Aliyeva","year":"2021","journal-title":"Compos. Part A Appl. Sci. Manuf."},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"110671","DOI":"10.1016\/j.tws.2023.110671","article-title":"On the application of strong thermoplastic\u2013thermoset interactions for developing advanced aerospace-composite joints","volume":"186","author":"Quan","year":"2023","journal-title":"Thin Walled Struct."},{"key":"ref_13","unstructured":"Joseph, K., Oksman, K., George, G., Wilson, R., and Appukuttan, S. (2021). Fiber Reinforced Composites for Aerospace and Sports Applications. Fiber Reinforced Composites, Woodhead Publishing. Chapter 25."},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"1473","DOI":"10.1177\/0021998320972471","article-title":"Comparison of progressive damage between thermoset and thermoplastic CFRP composites under in-situ tensile loading","volume":"55","author":"Rao","year":"2021","journal-title":"J. Compos. Mater."},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"109843","DOI":"10.1016\/j.compscitech.2022.109843","article-title":"Microscale evaluation of epoxy matrix composites containing thermoplastic healing agent","volume":"232","author":"Guerra","year":"2023","journal-title":"Compos. Sci. Technol."},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"383","DOI":"10.1016\/j.jmapro.2022.04.050","article-title":"Mechanical investigation and microstructure performance of a two-matrix continuous carbon fibre composite fabricated by 3D printing","volume":"79","author":"Liu","year":"2022","journal-title":"J. Manuf. Process."},{"key":"ref_17","doi-asserted-by":"crossref","unstructured":"Adumitroaie, A., Antonov, F., Khaziev, A., Azarov, A., Golubev, M., and Vasiliev, V.V. (2019). Novel Continuous Fiber Bi-Matrix Composite 3-D Printing Technology. Materials, 12.","DOI":"10.3390\/ma12183011"},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"87","DOI":"10.1134\/S1995421217010026","article-title":"Development of a two-matrix composite material fabricated by 3D printing","volume":"10","author":"Azarov","year":"2017","journal-title":"Polym. Sci. Ser. D"},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"1103","DOI":"10.1177\/0892705719864623","article-title":"Investigations on 3D printed thermosetting and ceramic-reinforced recycled thermoplastic-based functional prototypes","volume":"34","author":"Singh","year":"2019","journal-title":"J. Thermoplast. Compos. Mater."},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"4365","DOI":"10.1016\/j.jmrt.2023.08.132","article-title":"An investigation into mechanical properties of a 3D printed two-matrix continuous fiber composites with multi-cavity structure","volume":"26","author":"Kong","year":"2023","journal-title":"J. Mater. Res. Technol."},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"115113","DOI":"10.1016\/j.compstruct.2021.115113","article-title":"Structural behavior of 3D-printed sandwich beams with strut-based lattice core: Experimental and numerical study","volume":"281","author":"Ghannadpour","year":"2022","journal-title":"Compos. Struct."},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"2300399","DOI":"10.1002\/admt.202300399","article-title":"Non-Planar Multiprocess Additive Manufacturing of Multifunctional Composites","volume":"8","author":"Chauvette","year":"2023","journal-title":"Adv. Mater. Technol."},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"114866","DOI":"10.1016\/j.compstruct.2021.114866","article-title":"Compression and flexural properties of rigid polyurethane foam composites reinforced with 3D-printed polylactic acid lattice structures","volume":"279","author":"Tao","year":"2022","journal-title":"Compos. Struct."},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"e53488","DOI":"10.1002\/app.53488","article-title":"Overmolded hybrid thermoset-thermoplastic structures: Experimental study on the bonding strength of co-curing thermoplastic film onto thermoset composite","volume":"140","author":"Miao","year":"2023","journal-title":"J. Appl. Polym. Sci."},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"1754S","DOI":"10.1177\/15280837221104260","article-title":"Assessing the tensile properties of interlayer hybrid thermoset-thermoplastic composites","volume":"51","author":"Goodarz","year":"2022","journal-title":"J. Ind. Text."},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"963","DOI":"10.1080\/10601325.2012.722858","article-title":"Microwave Assisted Synthesis of Poly (lactic acid) and its Characterization using Size Exclusion Chromatography","volume":"49","author":"Singla","year":"2012","journal-title":"J. Macromol. Sci. Part A"},{"key":"ref_27","doi-asserted-by":"crossref","first-page":"10017","DOI":"10.1016\/j.polymer.2005.08.056","article-title":"A new biodegradable blends prepared from polylactide and hyaluronic acid","volume":"46","author":"Wu","year":"2005","journal-title":"Polymer"},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"93","DOI":"10.3390\/polym6010093","article-title":"Poly (lactic acid)\/Poly(ethylene glycol) Polymer Nanocomposites: Effects of Graphene Nanoplatelets","volume":"6","author":"Chieng","year":"2014","journal-title":"Polymers"},{"key":"ref_29","doi-asserted-by":"crossref","first-page":"63","DOI":"10.1109\/T-DEI.2008.4446737","article-title":"Improvement in surface degradation properties of polymer composites due to pre-processed nanometric alumina fillers","volume":"15","author":"Maity","year":"2008","journal-title":"IEEE Trans. Dielectr. Electr. Insul."},{"key":"ref_30","unstructured":"Teixeira, L., Junior, V., and Luz, S. (2022, January 24\u201328). The Influence of Cur\u0131ng Agent Rat\u0131o On Epoxy Res\u0131n By Us\u0131ng Ft\u0131r Spectroscopy. Proceedings of the 16th Brazilian Polymer Conference, Minas Gerais, Brazil."},{"key":"ref_31","unstructured":"Theophile, T. (2012). Applications of FTIR on Epoxy Resins\u2014Identification, Monitoring the Curing Process, Phase Separation and Water Uptake. Infrared Spectroscopy, IntechOpen."},{"key":"ref_32","doi-asserted-by":"crossref","first-page":"43974","DOI":"10.1002\/app.43974","article-title":"Sequential liquefaction of Nicotiana tabacum stems biomass by crude polyhydric alcohols for the production of polyols and rigid polyurethane foams","volume":"133","author":"Patel","year":"2016","journal-title":"J. Appl. Polym. Sci."},{"key":"ref_33","doi-asserted-by":"crossref","first-page":"263","DOI":"10.1002\/app.31096","article-title":"Characterization of polyurethane resins by FTIR, TGA, and XRD","volume":"115","author":"Trovati","year":"2010","journal-title":"J. Appl. Polym. Sci."},{"key":"ref_34","doi-asserted-by":"crossref","first-page":"269","DOI":"10.1080\/15685551.2016.1231045","article-title":"Design and synthesis of bio-based UV curable PU acrylate resin from itaconic acid for coating applications","volume":"20","author":"Patil","year":"2017","journal-title":"Des. Monomers Polym."},{"key":"ref_35","first-page":"1","article-title":"FTIR spectroscopy analysis of the prepolymerization of palm-based polyurethane","volume":"18","author":"Binti","year":"2010","journal-title":"Solid State Sci. Technol."}],"container-title":["Materials"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/1996-1944\/17\/17\/4426\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,10]],"date-time":"2025-10-10T15:51:58Z","timestamp":1760111518000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/1996-1944\/17\/17\/4426"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2024,9,9]]},"references-count":35,"journal-issue":{"issue":"17","published-online":{"date-parts":[[2024,9]]}},"alternative-id":["ma17174426"],"URL":"https:\/\/doi.org\/10.3390\/ma17174426","relation":{},"ISSN":["1996-1944"],"issn-type":[{"value":"1996-1944","type":"electronic"}],"subject":[],"published":{"date-parts":[[2024,9,9]]}}}