Investigation on the Temperature Distribution Uniformity of an Extrusion-Based 3D Print Head and Its Temperature Control Strategy
Open accessAbstract
Extrusion-based 3D printing for thermoplastic polymers manifests potential for the fabrication of biocompatible and biodegradable scaffolds. However, the uncontrollable shape of printed filaments usually negatively impacts on the printing processes. Non-uniform temperature in the print head is a primary cause of inaccuracy in the diameter of filaments formed during the process of extruding thermoplastic polymers. Therefore, the temperature distribution inside the print head must be controlled accurately. This study developed a novel print head configuration with two groups of controllable heat sources for extrusion-based printing of thermoplastic polymers. Subsequently, a numerical thermal analysis based on the finite element method (FEM) was conducted to investigate the temperature field in the print head during the heating process. Moreover, a temperature control strategy is proposed under which the temperature distribution of the print head can be regulated. The temperature uniformity can be improved with the proposed temperature control strategy. Lastly, groups of printing trials were implemented, and the printed filaments showed excellent uniformity of diameter when temperature distribution uniformity was controlled in the print head.
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PLCL has good processability and can be processed into scaffolds of various shapes and sizes through electrospinning, 3D printing and other technical methods to meet application of different repair scenarios.
“PLCL has good processability and can be processed into scaffolds of various shapes and sizes through electrospinning, 3D printing and other technical methods to meet the application of different repair scenarios [206].”
From Application of PLCL as a biodegradable polymer in biomedical engineering (2026) · cites this paper as [206]
The Introduction reports that PLCL was 3D-printed into a scaffold for a skin model intended to aid wound healing, and Section 5.1 describes PLCL as a material used in printing trials. The cited paper does not establish that PLCL scaffolds can be made by electrospinning or in various shapes and sizes for different repair scenarios. (LLM, conf=0.85)
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“…of various shapes and sizes through electrospinning, 3D printing and other technical methods to meet the application of different repair scenarios [206]. de Souza et al. developed an electrospun composite scaffold based on PEG and PLCL, and added calcined and lyophilized silicate chlorinated…”
- Authors
- Gao, Q., Yu, K., Chen, F., Lu, L., & Zhang, P.
- Affiliations
- Harbin Institute of Technology (CN)
- Corresponding author
- Yu, Kaicheng
- Lu, Lihua
- Venue
- Pharmaceutics
- Publisher
- MDPI AG
- Published
- 2022-10-01
- Volume
- 14
- Issue
- 10
- Pages
- 2108
- ISSN
- 1999-4923 (ISSN-L)
- PMC
- PMC9610069
- OpenAlex
- W4303961970
- Cited by
- 8
- References
- 32
- Citations by year
- 2026: 2 · 2024: 2 · 2023: 4
- FWCI
- 0.41
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Licence
- Locations
- Pharmaceutics (publishedVersion, cc-by)
- PubMed Central (publishedVersion, cc-by)
- PubMed (publishedVersion)
- DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
- Funders
- Natural Science Foundation Project of Chongqing (cstc2021jcyj-msxmX0803, IR2021227, 52105439, XNAUEA5640202220-07)
- Interdisciplinary Research Foundation of HIT (cstc2021jcyj-msxmX0803, IR2021227, 52105439, XNAUEA5640202220-07)
- National Natural Science Foundation of China (cstc2021jcyj-msxmX0803, IR2021227, 52105439, XNAUEA5640202220-07)
- the Leading Wild Goose Program Scientific Research Project of Harbin Institute of Technology (cstc2021jcyj-msxmX0803, IR2021227, 52105439, XNAUEA5640202220-07)
- Topics
- Physical Sciences › Engineering › Automotive Engineering › Additive Manufacturing and 3D Printing Technologies
- Physical Sciences › Engineering › Biomedical Engineering › 3D Printing in Biomedical Research
- Physical Sciences › Engineering › Building and Construction › Innovations in Concrete and Construction Materials
- Keywords
- material extrusion, temperature uniformity, temperature control strategy, thermoplastics, biodegradable scaffolds, biocompatible scaffolds
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