Abstract
The effect of UV radiation on the thermal, structural and mechanical properties of Bayfol CR6-2 polymer samples has been investigated. These samples were exposed to different energy fluences of UV in the range 10-200 J/cm2. Simultaneous thermogravimetric analysis (TGA) and differential thermal analysis (DTA) have been performed on Bayfol samples of 0.3 mm thickness. The structural modifications in the UV irradiated Bayfol samples have been studied as a function of fluence using Fourier Transform Infrared spectroscopy. In addition, the mechanical properties of the irradiated and non irradiated samples were studied. The results indicate that the irradiation of Bayfol polymer at the fluence range 130-200 J/cm2, leads to cross-linking process that strengthens the polymer against thermal degradation. The results of FTIR and mechanical measurements indicated that the scission takes place at the carbonate site with the formation of hydroxyl group. Also, at the fluence range 0-130 J/cm2, the standard chains and a great number of chain ends weaken and the material may become softer. This paper also reviews recent developments along with some patents. It concentrates on solving the low thermal stability of the material due to some structural defects during polymerization process. The attempts to decrease these defects and improving the thermal stability help in using these materials in industry applications.
Keywords: UV irradiation, polycarbonate, FTIR, thermal, &, mechanical properties
Recent Patents on Mechanical Engineering
Title: Improvement of the Mechanical and Thermal Properties of Bayfol CR6-2 Polymer using UV Radiation
Volume: 3 Issue: 1
Author(s): Elham M. Sakr
Affiliation:
Keywords: UV irradiation, polycarbonate, FTIR, thermal, &, mechanical properties
Abstract: The effect of UV radiation on the thermal, structural and mechanical properties of Bayfol CR6-2 polymer samples has been investigated. These samples were exposed to different energy fluences of UV in the range 10-200 J/cm2. Simultaneous thermogravimetric analysis (TGA) and differential thermal analysis (DTA) have been performed on Bayfol samples of 0.3 mm thickness. The structural modifications in the UV irradiated Bayfol samples have been studied as a function of fluence using Fourier Transform Infrared spectroscopy. In addition, the mechanical properties of the irradiated and non irradiated samples were studied. The results indicate that the irradiation of Bayfol polymer at the fluence range 130-200 J/cm2, leads to cross-linking process that strengthens the polymer against thermal degradation. The results of FTIR and mechanical measurements indicated that the scission takes place at the carbonate site with the formation of hydroxyl group. Also, at the fluence range 0-130 J/cm2, the standard chains and a great number of chain ends weaken and the material may become softer. This paper also reviews recent developments along with some patents. It concentrates on solving the low thermal stability of the material due to some structural defects during polymerization process. The attempts to decrease these defects and improving the thermal stability help in using these materials in industry applications.
Export Options
About this article
Cite this article as:
Sakr M. Elham, Improvement of the Mechanical and Thermal Properties of Bayfol CR6-2 Polymer using UV Radiation, Recent Patents on Mechanical Engineering 2010; 3 (1) . https://dx.doi.org/10.2174/2212797611003010045
DOI https://dx.doi.org/10.2174/2212797611003010045 |
Print ISSN 2212-7976 |
Publisher Name Bentham Science Publisher |
Online ISSN 1874-477X |
Call for Papers in Thematic Issues
Artificial Intelligence in Advanced Ceramics Reinforced Materials and Coatings for Protection of Turbomachinery
Artificial intelligence (AI) is a very emerging technology in various industrial applications. The expert system enables help in sensing, monitoring, prediction, controlling, and diagnosis the various problems, and provides ease of work. The protection of turbo-machinery and offshore applications against erosion, corrosion, and abrasion is a global concern in the ...read more
Emerging Methods and Techniques in Sustainable Manufacturing and Materials Processing
Sustainability in manufacturing practices to process materials is a globally accepted mandate and it consists of ecofriendly strategies and methods such as processing, synthesis, fabrication, process optimization by experimental, numerical and computational approaches to test, evaluate the performance and reliability of different materials. The success in enhancement of materials processing ...read more
Latest Experimental and Computational Aspects of Advanced Composites for Structural Applications
This proposal highlights the recent developments in the field of advanced composites for structural applications, encompassing both experimental and computational aspects. Furthermore, it focuses on the integration of machine learning and deep learning techniques to enhance the understanding and performance prediction of advanced composite materials. The proposed research aims to ...read more
Opportunities of Emerging Materials Processing for Enhanced Manufacturing in Industry 4.0
This proposed special issue aims to explore the transformative potential of emerging materials processing techniques in the context of Industry 4.0, focusing on the opportunities they present for enhancing manufacturing processes. As Industry 4.0 continues to revolutionize the global manufacturing landscape, the integration of cutting-edge materials processing technologies becomes paramount ...read more
Related Journals
- Author Guidelines
- Graphical Abstracts
- Fabricating and Stating False Information
- Research Misconduct
- Post Publication Discussions and Corrections
- Publishing Ethics and Rectitude
- Increase Visibility of Your Article
- Archiving Policies
- Peer Review Workflow
- Order Your Article Before Print
- Promote Your Article
- Manuscript Transfer Facility
- Editorial Policies
- Allegations from Whistleblowers
Related Articles
-
Inulin as a Delivery Vehicle for Targeting Colon-Specific Cancer
Current Drug Delivery New Targeted Treatments for Fragile X Syndrome
Current Pediatric Reviews Design, Synthesis and Evaluation of Novel 2-piperidinyl Quinoline Chalcones/ Amines as Potential Antidepressant Agents
Letters in Drug Design & Discovery TIMP-2 Polymorphisms Define Subtypes of Hypertensive Intracerebral Hemorrhage with Distinct Perihematomal Edema Development Patterns
Current Neurovascular Research The Radiosensitizing Effect of Olanzapine as an Antipsychotic Medication on Glioblastoma Cell
Current Radiopharmaceuticals Disease Modifying Drugs in Multiple Sclerosis: Mechanisms of Action and New Drugs in the Horizon
CNS & Neurological Disorders - Drug Targets An Intelligent Three-dimensional Ultrasound Program for Rapidly Imaging of the Fetal Cranial Mid-sagittal Plane
Current Medical Imaging Meet Our Associate Editor
Current Chemical Biology L-DOPA and Serotonergic Neurons: Functional Implication and Therapeutic Perspectives in Parkinson's Disease
Central Nervous System Agents in Medicinal Chemistry Pharmacogenetic Approach to Treating Drug Dependence: Serotonin Transporter Gene (SLC6A4) Promoter Polymorphisms as Treatment Predictors in Jordanian Arabs
Current Pharmacogenomics and Personalized Medicine Synthesis, Molecular Docking and In Vitro Antimicrobial Studies of Novel Pyrazole Analogues of Curcumin
Letters in Drug Design & Discovery Reversal of Tumor Induced Dendritic Cell Paralysis: A Treatment Regimen Against Cancer
Current Immunology Reviews (Discontinued) A Cross-Section Study of the Ontogeny of Gender Roles in Women with DSD
Current Pediatric Reviews Age-Related Changes in the Reliability of Antioxidant Enzyme Defense in Monkeys with Different Types of Adaptive Behavior
Current Aging Science Systemic Inflammation Induces Endothelial Dysfunction in Peritoneal Dialysis Patients
Vascular Disease Prevention (Discontinued) Alzheimers Disease: Interactions Between Cholinergic Functions and β- amyloid
Current Alzheimer Research Mechanisms of Adipocytokine-Mediated Trastuzumab Resistance in HER2-Positive Breast Cancer Cell Lines
Current Pharmacogenomics and Personalized Medicine Nerve Growth Factor in Alcohol Use Disorders
Current Neuropharmacology Evaluation of Salivary Vitamin C and Catalase in HIV Positive and Healthy HIV Negative Control Group
Infectious Disorders - Drug Targets Therapeutic Perspectives of Drugs Targeting Toll-Like Receptors Based on Immune Physiopathology Theory of Alzheimers Disease
CNS & Neurological Disorders - Drug Targets