Properties and Characterization of Chitosan/Collagen/PMMA Composites Containing Hydroxyapatite

2016 ◽  
Vol 672 ◽  
pp. 247-256 ◽  
Author(s):  
Alina Sionkowska ◽  
Beata Kaczmarek ◽  
Paulina Trokowska ◽  
Iulian Vasile Antoniac
Keyword(s):  
Mechanical Properties ◽  
Thermal Analysis ◽  
Methyl Methacrylate ◽  
Polymer Blends ◽  
New Materials ◽  
Sem Images ◽  
Poly Methyl Methacrylate ◽  
Properties And Characterization ◽  
Properties Of Composites

In this paper several properties of new materials based on polymer blends were studied. The properties of composites made of the blends of chitosan and collagen with addition of poly (methyl methacrylate) and hydroxyapatite were investigated. Mechanical properties, thermal analysis, FTIR spectra and SEM images were obtained for different blends of chitosan/collagen in weight ratios 75/25, 50/50, 25/75. Poly (methyl methacrylate) was used in ratios 15, 50 and 85 wt% based on chitosan. The influence of the addition of hydroxyapatite to the polymer blends on their properties was tested. The results showed that the amount of components can influence on the mechanical properties observed for obtained materials.

Biological Properties of Chitosan/Collagen Composites

2013 ◽  
Vol 587 ◽  
pp. 205-210 ◽  
Author(s):  
Alina Sionkowska ◽  
Beata Kaczmarek ◽  
J. Stalinska ◽  
A.M. Osyczka
Keyword(s):  
Mechanical Properties ◽  
Thermal Analysis ◽  
Alkaline Phosphatase ◽  
Human Mesenchymal Stem Cells ◽  
Biological Properties ◽  
Cellular Activity ◽  
New Materials ◽  
Sem Images ◽  
Biological Compatibility ◽  
Chitosan Films

The properties of new materials based on the blends of collagen and chitosan were studied along with their biological compatibility. Mechanical properties, thermal analysis, FTIR spectra and SEM images were obtained for different blends of chitosan/collagen in weight ratios 75/25, 50/50, 25/75. The materials in the form of 2D sheets were then subjected to cultures of human mesenchymal stem cells (hMSC) directed toward osteogenesis with ascorbate-2-phosphate and dexamethasone. The results showed that specified amounts of components influence the mechanical properties of obtained materials. Proliferation of hMSC decreased with increasing amounts of chitosan in collagen/chitosan films. However, the cellular activity of alkaline phosphatase (ALP), a marker of preosteoblasts and active osteoblasts, for plain collagen films ALP was the highest, whereas different ratios of collagen in chitosan/collagen composites had no effect on overall good ALP activity of hMSC. Based on the presented data, we believe the obtained materials are suitable for bone tissue engineering strategies.

Characterization of Mechanical and Thermal Properties of PP/Mineral Composites

2014 ◽  
Vol 1025-1026 ◽  
pp. 241-245 ◽  
Author(s):  
Ľudmila Dulebová ◽  
Emil Spišák ◽  
Branislav Duleba ◽  
František Greškovič ◽  
Tomasz Garbacz
Keyword(s):  
Mechanical Properties ◽  
Thermal Analysis ◽  
Mechanical And Thermal Properties ◽  
Screw Extruder ◽  
Twin Screw ◽  
Pp Composites ◽  
Mineral Fillers ◽  
The Impact ◽  
Properties Of Composites

The paper presents the impact of the use of fillers on the mechanical properties of composites with polymeric matrix from polypropylene (PP). Two main types of mineral fillers - talc and calcium carbonate - were used for experiments. PP composites of different percentage filler in matrix PP were compounded with twin-screw extruder and then injection molding. Properties of composites were investigated by tensile test and thermal analysis. Tensile strength was performed to determine and compare the mechanical properties of the unfilled PP and filled PP with various percentages of fillers. Thermal analysis by thermogravimetric was performed on the tested materials - weight loss, glass transition temperature, thermal decomposition, melting temperature.

scholarly journals Effects of ABS-g-MAH on Morphologies and Properties of PC/ASA/PMMA Blends

2020 ◽  
Author(s):  
Ruogu Tang
Keyword(s):  
Mechanical Properties ◽  
Thermal Properties ◽  
Injection Molding ◽  
Methyl Methacrylate ◽  
Polymer Blends ◽  
Mechanical And Thermal Properties ◽  
Step Method ◽  
Poly Methyl Methacrylate ◽  
Pmma Blends ◽  
Poly Carbonate

In this work, ABS-g-MAH was used as the compatibilizer in poly carbonate/acrylonitrile styrene acrylate/poly(methyl methacrylate) blends. The polymer blends were prepared via a two-step method: first, raw PC, ASA, PMMA resins and ABS-g-MAH additives were completely mixed and granulated by extrusion molding, and then the standard PC/ASA/PMMA blends samples were obtained by injection molding. A comprehensive characterizations were performed on the PC/ASA/PMMA blends of their morphologies, mechanical properties and thermal properties. The results showed that the addition of ABS-g-MAH could promote the compatibilities among PC, ASA and PMMA, and ABS-g-MAH would significantly alter the mechanical and thermal properties of blends.

Synthesis of Poly(Methyl Methacrylate) Reinforced by Graphene Nanoplates

2021 ◽  
Vol 897 ◽  
pp. 63-70
Author(s):  
Elif Kocacinar ◽  
Nilgun Baydogan
Keyword(s):  
Mechanical Properties ◽  
Methyl Methacrylate ◽  
In Situ Polymerization ◽  
Technical Problem ◽  
Test Method ◽  
X Ray Diffraction ◽  
Sem Images ◽  
Poly Methyl Methacrylate ◽  
Superior Mechanical Properties ◽  
Dispersion Problem

Graphene nanoplatelets (GNPs) was used as a nanofiller in Poly(methyl methacrylate) (PMMA) synthesized by the Atom Transfer Radical Polymerization (ATRP) method. The first step in the synthesis of the PMMA/GNPs was the dispersion of GNPs in the PMMA liquid monomers by combining the solutions so that GNPs had superior mechanical properties, thermal stability, and electrical conductivity also lower density of mass. Then the crosslinked PMMA/GNPs nanocomposite samples were synthesized by using the in-situ polymerization method. However, there was a challenging technical problem in the application of GNPs (at a large amount) in the polymer. For the purpose of benefiting from the advantageous properties of GNPs (especially in bulk quantities) at PMMA, the major problem at the synthesis of PMMA/GNPs nanocomposite was the GNPs dispersion in the polymer matrix. This research has focused on solving that dispersion problem with the aim of enhancing the mechanical properties of the nanocomposite by utilizing the ATRP method as the effective production technic. The structural characterization of PMMA/GNPs nanocomposite was performed for the examination of the integration of GNPs in PMMA. The surface morphology of the nanocomposite was analyzed using SEM images. X-Ray Diffraction (XRD) as a non-destructive test method was used to examine the changes in the crystalline properties of the nanocomposite structure with the rise of the GNPs amount in PMMA. The bonding interactions with each other were investigated by using Raman analysis.

scholarly journals Effects of ABS-g-MAH on Morphologies and Properties of PC/ASA/PMMA Blends

2020 ◽  
Author(s):  
Ruogu Tang ◽  
Wenfa Dong
Keyword(s):  
Mechanical Properties ◽  
Thermal Properties ◽  
Injection Molding ◽  
Methyl Methacrylate ◽  
Polymer Blends ◽  
Mechanical And Thermal Properties ◽  
Step Method ◽  
Poly Methyl Methacrylate ◽  
Pmma Blends ◽  
Poly Carbonate

In this work, ABS-g-MAH was used as the compatibilizer in poly carbonate/acrylonitrile styrene acrylate/poly(methyl methacrylate) blends. The polymer blends were prepared via a two-step method: first, raw PC, ASA, PMMA resins and ABS-g-MAH additives were completely mixed and granulated by extrusion molding, and then the standard PC/ASA/PMMA blends samples were obtained by injection molding. A comprehensive characterizations were performed on the PC/ASA/PMMA blends of their morphologies, mechanical properties and thermal properties. The results showed that the addition of ABS-g-MAH could promote the compatibilities among PC, ASA and PMMA, and ABS-g-MAH would significantly alter the mechanical and thermal properties of blends.

scholarly journals Effects of ABS-g-MAH on Morphologies and Properties of PC/ASA/PMMA Blends

2019 ◽  
Author(s):  
Ruogu Tang
Keyword(s):  
Mechanical Properties ◽  
Thermal Properties ◽  
Injection Molding ◽  
Methyl Methacrylate ◽  
Polymer Blends ◽  
Mechanical And Thermal Properties ◽  
Step Method ◽  
Poly Methyl Methacrylate ◽  
Pmma Blends ◽  
Poly Carbonate

In this study, ABS-g-MAH was used as compatibilizer in poly carbonate/acrylonitrile styrene acrylate/poly(methyl methacrylate) blends. The polymer blends were prepared via a two-step method: first, raw PC, ASA, PMMA resins and ABS-g-MAH additives were completely mixed and granulated by extrusion molding, and then the standard PC/ASA/PMMA blends samples were obtained by injection molding. A comprehensive characterizations were performed on the PC/ASA/PMMA blends of their morphologies, mechanical properties and thermal properties. The results showed that the addition of ABS-g-MAH could promote the compatibilities among PC, ASA and PMMA, and ABS-g-MAH would significantly alter the mechanical and thermal properties of blends.

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