Background and objective: To evaluate the FTIR of Hydroxyl apatite additives 2 %, and 5 % of dry (HAP) prepared from egg shells to the polymer. Materials and Methods: Thirty six specimens of heat cured acrylic resin and other specimens of heat cured acrylic resin with 2 % and or 5 % prepared then immersed in distilled water for 48 hours then dried for 42 hours then scratched with sharp knife and measured by FTIR spectra . conclusion: The result showed when adding 2% &/or 5% hydroxyl apatite to heat cured acrylic resin denture base material resulting a homogenous mixture, without chemical reaction in between and without changes of acrylic resin properties so, they can be used together in patients with bone hydroxyl apatite deficiency.
Table of Contents
1. INTRODUCTION
2. Materials and methods
3. Result and Discussion
4. Conclusion
Objectives and Research Themes
The primary objective of this study is to evaluate the influence of adding 2% and 5% dry hydroxyl apatite (HAP), derived from egg shells, to heat-cured acrylic resin through Fourier Transform Infrared (FTIR) spectroscopy analysis to determine potential chemical interactions and material compatibility.
- Synthesis and characterization of hydroxyl apatite from egg shells.
- Preparation of heat-cured acrylic resin specimens with varying HAP concentrations.
- FTIR analysis of the composite material to monitor functional group changes.
- Assessment of chemical bonding and homogeneity between the resin and the additive.
Excerpt from the Book
Result and Discussion:
Results of FTIR test shown in figures (1-3). In the IR charts two important absorbance peaks appeared (the absorbance of the C=C band from the methacrylate group which appear around 1640 cm-1 and the absorbance peak of the C=O from the ester group appear around 1720 cm-1).
The IR spectrum of raw HAP powder are showed. The broad peak ranging from 3300-3600 cm-1 can be explained owing to O-H group stretch vibration. The band at 1450 cm-1 is assigned to the CO32- stretching. An intense PO43- peak appeared at 1048 cm-1. Additional phosphate group bands are found in the region 963, 875, 633 and 472 cm-1, a sharp peak of OH stretch vibration band appeared at 3570 cm-1 and a less intense CO3- peak appeared at 1450 cm-1(11).
An intense PO43- peak appeared at 1048 cm-1. The additional phosphate peaks are found in the region 1110, 975, 600 and 470 cm-1(11).
The C-O-C peak at 1254, 1200 cm-1 and an intense phosphate peak is found is found at 1040 cm-1. The additional phosphate group bands at 810 cm-1 and 757 cm-1. In this spectrum, there is no peak at 2270 cm-1(11).
Summary of Chapters
1. INTRODUCTION: Provides the theoretical background on polymerization of acrylic resin and outlines the necessity of using FTIR spectroscopy to characterize biomaterials.
2. Materials and methods: Details the synthesis of HAP from egg shells and the specific laboratory procedures used to prepare and analyze the resin-HAP composite specimens.
3. Result and Discussion: Presents the FTIR spectral data obtained from the experiments and interprets the chemical findings regarding the integration of HAP into the resin matrix.
4. Conclusion: Summarizes the finding that HAP addition creates a homogenous mixture with the acrylic resin without inducing chemical reactions.
Keywords
FTIR, Heat-cured Acrylic Resin, Hydroxyl Apatite, Egg Shells, Polymerization, Spectroscopy, Biomaterials, Composite, Chemical Analysis, Residual Monomer, Dental Material, Infrared Spectrum, Bone Graft, Methacrylate, Homogenous Mixture
Frequently Asked Questions
What is the primary focus of this study?
The study focuses on evaluating the incorporation of hydroxyl apatite derived from egg shells into heat-cured acrylic resin denture base materials.
What are the central thematic areas?
The research centers on dental materials science, specifically polymerization, analytical chemistry (FTIR), and the development of bone-compatible composite resins.
What is the core objective of the research?
The main objective is to determine if adding 2% or 5% hydroxyl apatite causes any chemical reactions or changes in the properties of the acrylic resin.
Which scientific method is applied?
The study utilizes Fourier Transform Infrared (FTIR) spectroscopy as the primary analytical tool to investigate the chemical structure and homogeneity of the synthesized composites.
What does the main body cover?
The main body covers the preparation of HAP from egg shells, the manufacturing of the resin specimens, and the subsequent analysis of IR spectral charts.
What defines the research keywords?
The keywords reflect the materials used (HAP, Acrylic Resin), the analytical technique (FTIR), and the application context (Dental Materials, Bone Graft).
How was the hydroxyl apatite synthesized for the experiment?
It was synthesized by adding phosphoric acid to a calcium carbonate suspension, followed by filtering, drying at 50°C, and sintering at 1100°C.
Does the addition of HAP trigger a chemical reaction within the resin?
No, the study concludes that adding 2% or 5% HAP results in a homogenous mixture without any chemical reaction occurring between the additive and the resin.
Why are egg shells used in this study?
Egg shells serve as a cost-effective, readily available source of calcium carbonate, which acts as a precursor for the synthesis of hydroxyl apatite.
- Arbeit zitieren
- Amer Taqa (Autor:in), Nadira A. Hatim (Autor:in), Zena J Hussan (Autor:in), 2012, FTIR of Hydroxy Appetite on Heat Cured Acrylic Resin, München, GRIN Verlag, https://www.grin.com/document/209692
