-
Something wrong with this record ?
Assessment of mechanical behavior of PLA composites reinforced with Mg micro-particles through depth-sensing indentations analysis
SC. Cifuentes, E. Frutos, R. Benavente, V. Lorenzo, JL. González-Carrasco,
Language English Country Netherlands
Document type Journal Article, Research Support, Non-U.S. Gov't
- MeSH
- Magnesium MeSH
- Elastic Modulus MeSH
- Polyesters analysis MeSH
- Polymers analysis MeSH
- Materials Testing * MeSH
- Hardness MeSH
- Viscosity MeSH
- Absorbable Implants * MeSH
- Publication type
- Journal Article MeSH
- Research Support, Non-U.S. Gov't MeSH
This work deals with the mechanical characterization by depth-sensing indentation (DSI) of PLLA and PLDA composites reinforced with micro-particles of Mg (up to 15wt%), which is a challenging task since the indented volume must provide information of the bulk composite, i.e. contain enough reinforcement particles. The composites were fabricated by combining hot extrusion and compression moulding. Physico-chemical characterization by TGA and DSC indicates that Mg anticipates the thermal degradation of the polymers but does not compromise their stability during processing. Especial emphasis is devoted to determine the effect of strain rate and Mg content on mechanical behavior, thus important information about the visco-elastic behavior and time-dependent response of the composites is obtained. Relevant for the intended application is that Mg addition increases the elastic modulus and hardness of the polymeric matrices and induces a higher resistance to flow. The elastic modulus obtained by DSI experiments shows good agreement with that obtained by uniaxial compression tests. The results indicate that DSI experiments are a reliable method to calculate the modulus of polymeric composites reinforced with micro-particles. Taking into consideration the mechanical properties results, PLA/Mg composite could be used as substitute for biodegradable monolithic polymeric implants already in the market for orthopedics (freeform meshes, mini plates, screws, pins, …), craniomaxillofacial, or spine.
References provided by Crossref.org
- 000
- 00000naa a2200000 a 4500
- 001
- bmc18010975
- 003
- CZ-PrNML
- 005
- 20180404142440.0
- 007
- ta
- 008
- 180404s2017 ne f 000 0|eng||
- 009
- AR
- 024 7_
- $a 10.1016/j.jmbbm.2016.09.013 $2 doi
- 035 __
- $a (PubMed)27776320
- 040 __
- $a ABA008 $b cze $d ABA008 $e AACR2
- 041 0_
- $a eng
- 044 __
- $a ne
- 100 1_
- $a Cifuentes, S C $u Centro Nacional de Investigaciones Metalúrgicas, CENIM-CSIC, Avda. Gregorio del Amo 8, 28040 Madrid, Spain; Departamento de Ciencia e Ingeniería de Materiales e Ingeniería Química, IAAB, Universidad Carlos III de Madrid, Avda. de la Universidad, 30, 28911 Leganés, Madrid, Spain. Electronic address: scifuent@ing.uc3m.es.
- 245 10
- $a Assessment of mechanical behavior of PLA composites reinforced with Mg micro-particles through depth-sensing indentations analysis / $c SC. Cifuentes, E. Frutos, R. Benavente, V. Lorenzo, JL. González-Carrasco,
- 520 9_
- $a This work deals with the mechanical characterization by depth-sensing indentation (DSI) of PLLA and PLDA composites reinforced with micro-particles of Mg (up to 15wt%), which is a challenging task since the indented volume must provide information of the bulk composite, i.e. contain enough reinforcement particles. The composites were fabricated by combining hot extrusion and compression moulding. Physico-chemical characterization by TGA and DSC indicates that Mg anticipates the thermal degradation of the polymers but does not compromise their stability during processing. Especial emphasis is devoted to determine the effect of strain rate and Mg content on mechanical behavior, thus important information about the visco-elastic behavior and time-dependent response of the composites is obtained. Relevant for the intended application is that Mg addition increases the elastic modulus and hardness of the polymeric matrices and induces a higher resistance to flow. The elastic modulus obtained by DSI experiments shows good agreement with that obtained by uniaxial compression tests. The results indicate that DSI experiments are a reliable method to calculate the modulus of polymeric composites reinforced with micro-particles. Taking into consideration the mechanical properties results, PLA/Mg composite could be used as substitute for biodegradable monolithic polymeric implants already in the market for orthopedics (freeform meshes, mini plates, screws, pins, …), craniomaxillofacial, or spine.
- 650 12
- $a vstřebatelné implantáty $7 D020341
- 650 _2
- $a modul pružnosti $7 D055119
- 650 _2
- $a tvrdost $7 D006244
- 650 _2
- $a hořčík $7 D008274
- 650 12
- $a testování materiálů $7 D008422
- 650 _2
- $a polyestery $x analýza $7 D011091
- 650 _2
- $a polymery $x analýza $7 D011108
- 650 _2
- $a viskozita $7 D014783
- 655 _2
- $a časopisecké články $7 D016428
- 655 _2
- $a práce podpořená grantem $7 D013485
- 700 1_
- $a Frutos, E $u Department of Control Engineering, Faculty of Electrical Engineering, Czech Technical University in Prague, Technická 2, Prague 6, Czech Republic. Electronic address: frutoemi@fel.cvut.cz.
- 700 1_
- $a Benavente, R $u Instituto de Ciencia y Tecnología de Polímeros ICTP-CSIC, Juan de la Cierva 3, 28006 Madrid, Spain. Electronic address: rbenavente@ictp.csic.es.
- 700 1_
- $a Lorenzo, V $u Grupo de Investigación ''Polímeros, Caracterización y Aplicaciones'' (U.A. del ICTP-CSIC), Universidad Politécnica de Madrid, 28006 Madrid, Spain. Electronic address: vicente.lorenzo@upm.es.
- 700 1_
- $a González-Carrasco, J L $u Centro Nacional de Investigaciones Metalúrgicas, CENIM-CSIC, Avda. Gregorio del Amo 8, 28040 Madrid, Spain; Centro de Investigación Biomédica en Red de Bioingeniería, Biomateriales y Nanomedicina CIBER-BBN, Spain. Electronic address: jlg@cenim.csic.es.
- 773 0_
- $w MED00166961 $t Journal of the mechanical behavior of biomedical materials $x 1878-0180 $g Roč. 65, č. - (2017), s. 781-790
- 856 41
- $u https://pubmed.ncbi.nlm.nih.gov/27776320 $y Pubmed
- 910 __
- $a ABA008 $b sig $c sign $y a $z 0
- 990 __
- $a 20180404 $b ABA008
- 991 __
- $a 20180404142519 $b ABA008
- 999 __
- $a ok $b bmc $g 1288460 $s 1007787
- BAS __
- $a 3
- BAS __
- $a PreBMC
- BMC __
- $a 2017 $b 65 $c - $d 781-790 $e 20160921 $i 1878-0180 $m Journal of the mechanical behavior of biomedical materials $n J Mech Behav Biomed Mater $x MED00166961
- LZP __
- $a Pubmed-20180404
