Structural Analysis of Polymer Composites Using Spectral Domain Optical Coherence Tomography

Abstract

The structural analysis of nylon/graphene oxide (NY/GO) and polyetherblockamide/ trisilinolphenyl-polyhederal oligomeric silsesquioxane (PEBA/t-POSS) composites were performed using high-resolution spectral domain optical coherence tomography (SD-OCT). This optical technology revealed both cross-sectional, as well as sub-layer depth information of sample. The non-destructive real-time imaging demonstrated the nature of defects in the composites. The thickness and location of each defect point in the composites were measured using A-scan analysis on the SD-OCT images. The cross-sectional and volumetric images clearly demonstrate the effectiveness of SD-OCT for composite research, as well as the for industrial quality assurance of polymer materials.

Vision-Inspection-Synchronized Dual Optical Coherence Tomography for High-Resolution Real-Time Multidimensional Defect Tracking in Optical Thin Film Industry

“…Although related assessments were not descriptively studied, vision inspection based quantifications of previously reported defect inspection studies were well considered for baseline comparisons [36,37]. In previous studies [21,35,[38][39][40][41], non-destructive identification of industrial materials has been achieved for diverse industrial materials. However, to date, a VLSC-synchronized with dual SD-OCT multimodal image inspection system for examining OTF sample defects in real time has not been studied in detail.…”

Simple Characterization Scheme for Optical Coherence Tomography Systems With Application to a Commercial and a Near-Isometric Resolution Fibre-Based System

“…OCT is widely used for both structural and functional imaging applications for disease diagnosis such as that of the eye [3], [4], heart and blood vessels [5], [6], [7], [8] , tumours [9], [10], visualization of dental structure [11], [12], [13], diagnosis and treatment of skin disorders [14], [15], [16]. OCT is used for imaging in material science [17], structural analysis of polymer composites [18], [19], sensor technology [20], [21], among many other applications. Spectral-domain OCT (SD-OCT) is a widely used modality due to its high sensitivity and fast imaging speed [22], [23], [24], [25], [26].…”

Patterned Photonic Array Based on an Intertwined Polymer Network Functionalized with a Nonenzymatic Moiety for the Visual Detection of Glucose

“…Periodic alternation of refractive index in these materials allows them to reflect the light, observable in the visible region . So far, several fabrication methods have been developed to fabricate responsive one-, two-, and three-dimensional PCs; for example, stimuli-responsive PCs have received much interest in the last few decades for their possible applications in optical sensors. , Hydrogels with integrated photonic band gap structures have been optimized to undergo reversible changes in their physical dimensions in response to external stimuli such as glucose, pH, ionic strength, temperature, humidity, solvent composition, and biomolecule binding. The photonic band gaps of these sensors are sensitive to such a volumetric change, which is converted into readable optical information.…”