Impact of the Fused Deposition (FDM) Printing Process on Polylactic Acid (PLA) Chemistry and Structure

Cuiffo, Michael; Snyder, John Evan; Elliott, Alicia; Romero, Nicholas; Kannan, Sandhiya; Halada, Gary P.

doi:10.3390/app7060579

Cited by 207 publications

(129 citation statements)

References 30 publications

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“…An understanding of the structural aspects and thermal behavior of both the filament and 3D prints is of utmost importance in designing functional products with improved properties. There are many studies to date concerning the mechanical behavior of 3D printed structures originating from several types of filaments (standalone polymers, polymer blends, or composites), but only a few deal with the structural and thermal behavior of both filament and corresponding 3D print . Furthermore, among these, most of the studies deal with custom‐made filaments, which may have limited practical applicability to mass production of 3D printed objects.…”

Section: Introductionmentioning

confidence: 99%

Structural changes during 3D printing of bioderived and synthetic thermoplastic materials

Pop

Croitoru

Bedő

et al. 2018

J of Applied Polymer Sci

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Three‐dimensional (3D) printing processes are nowadays leading the charge in transforming traditional art, engineering, and manufacturing processes. In this study, the structural and thermal behavior of commercially available filaments composed of synthetic poly(acrylonitrile‐co‐butadiene‐co‐styrene) thermoplastic as well as poly(lactic acid) and poly(lactic acid)/polyhydroxyalcanoate reinforced with bamboo (Bambusa sp.) wood flour composite biothermoplastics were assessed by differential scanning calorimetry and infrared spectroscopy, aiming to understand the modifications that occur at the molecular level during their 3D printing. It has been determined that the biothermoplastic materials undergo both molecular reorientations related to tacticity increase and crystallinity decrease when submitted to 3D printing extrusion, while the synthetic thermoplastic undergoes crosslinking due to its butadiene component. All of the studied materials present good water stability (with water uptake values between 0.8% and 24%), and the water absorption follows a pseudo‐Fickian mechanism. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019.

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Section: Introductionmentioning

confidence: 99%

Structural changes during 3D printing of bioderived and synthetic thermoplastic materials

Pop

Croitoru

Bedő

et al. 2018

J of Applied Polymer Sci

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“…Since PLA is compostable, one of the justifications for its use is to improve solid waste disposal problems and lessen the use of petroleum-based plastics for packaging. PLA belongs to the family of aliphatic polyesters derived from -hydroxyl acids and possesses advantageous optical, physical, mechanical, and barrier properties compared to existing petroleum-based polymers [60][61][62]. In the family of biodegradable polyesters, PLA is useful because it is renewable and compostable.…”

Section: Polylactic Acid (Pla) and Blendsmentioning

confidence: 99%

Characterization and Processing Behavior of Heated Aluminum-Polycarbonate Composite Build Plates for the FDM Additive Manufacturing Process

Messimer

Patterson

Muna

et al. 2018

JMMP

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Abstract:One of the most essential components of the fused deposition modeling (FDM) additive manufacturing (AM) process is the build plate, the surface upon which the part is constructed. These are typically made from aluminum or glass, but there are clear disadvantages to both and restrictions on which materials can be processed on them successfully. This study examined the suitability of heated aluminum-polycarbonate (AL-PC) composite print beds for FDM, looking particularly at the mechanical properties, thermal behavior, deformation behavior, bonding strength with deposited material, printing quality, and range of material usability. Theoretical examination and physical experiments were performed for each of these areas; the results were compared to similar experiments done using heated aluminum and aluminum-glass print beds. Ten distinct materials (ABS, PLA, PET, HIPS, PC, TPU, PVA, nylon, metal PLA, and carbon-fiber PLA) were tested for printing performance. The use of a heated AL-PC print bed was found to be a practical option for most of the materials, particularly ABS and TPU, which are often challenging to process using traditional print bed types. Generally, the results were found to be equivalent to or superior to tempered glass and superior to standard aluminum build plates in terms of printing capability.

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“…2. Scheme of PLA [8] Polylactic acid or polylactide (PLA) is a biodegradable and bioactive thermoplastic aliphatic polyester derived from renewable resources, such as corn starch, cassava roots, chips or starch, or sugarcane. PLA is very brittle, with less than 10 % elongation at break, thus it is not suitable for demanding mechanical performance applications unless it is suitably modified.…”

Section: Abs and Pla Materialsmentioning

confidence: 99%

“…This material is also strongly hydrophobic and can elicit an inflammatory response from the tissues of living hosts, because of its low affinity with cells when it is used as a tissue engineering material. Another limitation of PLA material towards its wider industrial application which is limited by gas barrier properties which prevent its complete access to industrial sectors such as packaging [8]. Main properties of PLA plastic are following: density (ρ): 1.210 3 -1.430 3 , melting point: from 150 to 160 °C.…”

Section: Abs and Pla Materialsmentioning

confidence: 99%

Research of ABS and PLA Materials in the Process of Fused Deposition Modeling Method

Milde¹,

Hrušecký²,

Zaujec³

et al. 2017

DAAAM Proceedings

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This article focused on comparing of the properties of the two most used materials, Acrylonitrile-Butadiene-Styrene (ABS) and Polylactic Acid (PLA), in the Rapid Prototyping (RP) process using the Fused Deposition Modeling (FDM) method. The thin-walled components were manufactured by Zortrax M200 and DeeGreen 3D printer. Print settings and printer parameters are also mentioned in the article. The printed models were 3D digitized using the GOM ATOS Triple Scan II optical 3D scanner. Main section is focused on the analysis of individual components in the GOM Inspect software. Authors used this software to measure the individual distances. The last section of the paper focuses especially on the evaluation of obtained results in the form of tables and a chart.

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Impact of the Fused Deposition (FDM) Printing Process on Polylactic Acid (PLA) Chemistry and Structure

Cited by 207 publications

References 30 publications

Structural changes during 3D printing of bioderived and synthetic thermoplastic materials

Structural changes during 3D printing of bioderived and synthetic thermoplastic materials

Characterization and Processing Behavior of Heated Aluminum-Polycarbonate Composite Build Plates for the FDM Additive Manufacturing Process

Research of ABS and PLA Materials in the Process of Fused Deposition Modeling Method

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