Direct-joining of a polylactide acid-hydroxyapatite biocomposite with a titanium alloy
Abstract A promising yet underexplored alternative for biomedical applications involves incorporating polymer, metal, and ceramic materials into hybrid structures. In this study, a biocomposite consisting of polylactic acid (PLA) with 20 wt% of nearly spherical sub-micron hydroxyapatite (HA) particl...
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| Format: | Article |
| Language: | English |
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Associação Brasileira de Polímeros
2025-03-01
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| Series: | Polímeros |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-14282025000100607&tlng=en |
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| author | Renan Adauto Gean Henrique Marcatto de Oliveira Mário Augusto Morozo Márcio Antônio Fiori Leonardo Bresciani Canto |
| author_facet | Renan Adauto Gean Henrique Marcatto de Oliveira Mário Augusto Morozo Márcio Antônio Fiori Leonardo Bresciani Canto |
| author_sort | Renan Adauto |
| collection | DOAJ |
| description | Abstract A promising yet underexplored alternative for biomedical applications involves incorporating polymer, metal, and ceramic materials into hybrid structures. In this study, a biocomposite consisting of polylactic acid (PLA) with 20 wt% of nearly spherical sub-micron hydroxyapatite (HA) particles was successfully synthesized. The HA particles were uniformly dispersed and distributed within the PLA matrix, leading to a biocomposite with a well-balanced combination of thermal and mechanical properties. This PLA−HA biocomposite was then directly joined through injection overmolding onto a laser-surface-structured titanium alloy Ti6Al4V substrate. The PLA−HA/Ti6Al4V hybrid joints demonstrated robust mechanical anchorage, achieved through the thorough filling of the polymer biocomposite into the micro-scale structures engineered onto the metal surface. This mechanism ensured good lap-shear strength, making these hybrid joints promising candidates for orthopedic applications. |
| format | Article |
| id | doaj-art-8d3a02de5c4b4cdbb6ad63ff49d0dd5a |
| institution | OA Journals |
| issn | 1678-5169 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Associação Brasileira de Polímeros |
| record_format | Article |
| series | Polímeros |
| spelling | doaj-art-8d3a02de5c4b4cdbb6ad63ff49d0dd5a2025-08-20T01:54:46ZengAssociação Brasileira de PolímerosPolímeros1678-51692025-03-0135110.1590/0104-1428.20240095Direct-joining of a polylactide acid-hydroxyapatite biocomposite with a titanium alloyRenan AdautoGean Henrique Marcatto de Oliveirahttps://orcid.org/0000-0002-4403-3643Mário Augusto Morozohttps://orcid.org/0000-0003-0589-2055Márcio Antônio Fiorihttps://orcid.org/0000-0002-4292-2068Leonardo Bresciani Cantohttps://orcid.org/0000-0002-4138-005XAbstract A promising yet underexplored alternative for biomedical applications involves incorporating polymer, metal, and ceramic materials into hybrid structures. In this study, a biocomposite consisting of polylactic acid (PLA) with 20 wt% of nearly spherical sub-micron hydroxyapatite (HA) particles was successfully synthesized. The HA particles were uniformly dispersed and distributed within the PLA matrix, leading to a biocomposite with a well-balanced combination of thermal and mechanical properties. This PLA−HA biocomposite was then directly joined through injection overmolding onto a laser-surface-structured titanium alloy Ti6Al4V substrate. The PLA−HA/Ti6Al4V hybrid joints demonstrated robust mechanical anchorage, achieved through the thorough filling of the polymer biocomposite into the micro-scale structures engineered onto the metal surface. This mechanism ensured good lap-shear strength, making these hybrid joints promising candidates for orthopedic applications.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-14282025000100607&tlng=enpolymer-metal hybridspolylactide acidhydroxyapatiteinjection overmolding |
| spellingShingle | Renan Adauto Gean Henrique Marcatto de Oliveira Mário Augusto Morozo Márcio Antônio Fiori Leonardo Bresciani Canto Direct-joining of a polylactide acid-hydroxyapatite biocomposite with a titanium alloy Polímeros polymer-metal hybrids polylactide acid hydroxyapatite injection overmolding |
| title | Direct-joining of a polylactide acid-hydroxyapatite biocomposite with a titanium alloy |
| title_full | Direct-joining of a polylactide acid-hydroxyapatite biocomposite with a titanium alloy |
| title_fullStr | Direct-joining of a polylactide acid-hydroxyapatite biocomposite with a titanium alloy |
| title_full_unstemmed | Direct-joining of a polylactide acid-hydroxyapatite biocomposite with a titanium alloy |
| title_short | Direct-joining of a polylactide acid-hydroxyapatite biocomposite with a titanium alloy |
| title_sort | direct joining of a polylactide acid hydroxyapatite biocomposite with a titanium alloy |
| topic | polymer-metal hybrids polylactide acid hydroxyapatite injection overmolding |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-14282025000100607&tlng=en |
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