Preparation and Characterization of Pure Pla Filament and Pbat-Reinforced Pla Filament For Fdm 3d Printing / (Record no. 607408)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 02980nam a22001577a 4500 |
| 082 ## - DEWEY DECIMAL CLASSIFICATION NUMBER | |
| Classification number | 670 |
| 100 ## - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Naeem Ul Hassan |
| 245 ## - TITLE STATEMENT | |
| Title | Preparation and Characterization of Pure Pla Filament and Pbat-Reinforced Pla Filament For Fdm 3d Printing / |
| Statement of responsibility, etc. | Naeem Ul Hassan |
| 264 ## - PRODUCTION, PUBLICATION, DISTRIBUTION, MANUFACTURE, AND COPYRIGHT NOTICE | |
| Place of production, publication, distribution, manufacture | Islamabad : |
| Name of producer, publisher, distributor, manufacturer | SMME- NUST; |
| Date of production, publication, distribution, manufacture, or copyright notice | 2023. |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 77p. |
| Other physical details | Soft Copy |
| Dimensions | 30cm |
| 500 ## - GENERAL NOTE | |
| General note | This study focuses on preparing pure polylactic acid (PLA) and polybutylene adipate –coterephthalate (PBAT)-reinforced PLA filaments. PLA and PBAT are biodegradable aliphatic<br/>polyesters and have recently received considerable attentions. Due to its brittle nature, PLA has<br/>limited application in various fields. To overcome this challenge, numerous efforts have been made<br/>to incorporate various additives to enhance its performance. In this work, pure PLA filament and<br/>PBAT-reinforced PLA filament with diameter 1.75 ± 0.02 mm were prepared in the lab. Their<br/>thermal and mechanical properties were analyzed and compared with the commercial PLA<br/>filament bought from the market. Following the previous research works and suggestions of<br/>incorporating no more than 10 wt.% PBAT, we have mixed 8 wt.% PBAT into the PLA mixture.<br/>We then proceeded to extrude pure PLA and PBAT-reinforced PLA filaments at a temperature<br/>range of 170 oC to 180 oC, utilizing single screw extruder. Next, we printed tensile and flexural<br/>specimens using an FDM 3D printer, in accordance with Taguchi L9 OA. Due to PBAT’s high<br/>ductility, 92-8 wt.% PLA-PBAT filament demonstrated a significant increase in elongation at<br/>break, reaching up to 12%. Likewise, the PLA-PBAT filament displayed tensile and flexural<br/>strengths of up to 48.34 MPa and 107.295 MPa respectively. These values are comparable to the<br/>tensile and flexural strengths of pure PLA, which is a great indication that the addition of 8 wt.%<br/>PBAT did not cause any unacceptable reduction in the tensile and flexural strengths. Additionally,<br/>it was found through DSC analysis that PLA-PBAT filament exhibited a higher degree of<br/>crystallinity (Xc) of up to 38.7%, which is significantly higher than that of pure extruded PLA.<br/>Furthermore, the TGA curve indicated that thermal stability of PLA-PBAT filament was improved<br/>by adding 8 wt.% PBAT. Moreover, digital microscopy results revealed that PLA-PBAT filament<br/>had a ductile fracture after necking, whereas pure PLA had a brittle fracture. Lastly, statistical<br/>analysis showed that both material type and layer thickness had significant impact on the results.<br/>The addition of this new PLA-PBAT filament provides an additional alternative to the current<br/>FDM filaments, and it will aid in reducing the constraints of the materials when it comes to additive<br/>manufacturing (AM) progress. |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | MS Design and Manufacturing Engineering |
| 700 ## - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Supervisor : Dr. Shahid Ikramullah Butt |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Uniform Resource Identifier | <a href="http://10.250.8.41:8080/xmlui/handle/123456789/33850">http://10.250.8.41:8080/xmlui/handle/123456789/33850</a> |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Source of classification or shelving scheme | |
| Koha item type | Thesis |
| Withdrawn status | Permanent Location | Current Location | Shelving location | Date acquired | Full call number | Barcode | Koha item type |
|---|---|---|---|---|---|---|---|
| School of Mechanical & Manufacturing Engineering (SMME) | School of Mechanical & Manufacturing Engineering (SMME) | E-Books | 01/16/2024 | 670 | SMME-TH-852 | Thesis |