Up-Conversion Fluorescent Labels for Plastic Recycling: A Review

Waste plastic mounting, but can be recycled into other products in the form of granules before further processed into pellets and seed injection molding process produces products such as buckets, plates, bottles and other beverages. To be processed into the required form of granules of plastic thrasher. Though so small plastic recycling industry is still constrained in plastic enumeration process because the machine used was not optimal ability. The purpose of this research is the development of the system thrasher plastic crusher and cutter cylinder-type reel and technical evaluation. This study was conducted over two years, the first year the design and manufacture of machinery, the second year is a technical evaluation of the engine, engine performance improvements and economic analysis of granular plastic products.From the results obtained engine design capacity of the machine ± 350 kg / h, the engine size is 50 cm x 120 cm x 30 cm, power motor of 10 HP at 1450 RPM rotation with 3 phase. Some of the major components of the engine that is, counter crusher unit consists of two counter rotating cylinders opposite, counter shaft size Ø 4 cm x 58 cm, blade chopper Ø 17 cm x 2 cm with the number of teeth / blades 7 pieces and the number of blades along shaft 7 pieces, buses retaining Ø 10 cm x 2 cm. Counter-cylinder unit consists of a reel-type cutter counter shaft size Ø 4 cm x 90 cm, the middle shaft mounted cylinder with Ø 17 cm x 40 cm as the holder of the chopper blades. Chopper blade consists of 4 pieces with a size of 40 cm x 2 cm x 4 cm with ASSAB materials. Furthermore, as the blade retaining bedknife shear force of the blade chopper, upper frame, lower frame, strainer, funnel entry, exit funnel, and the drive unit consists of an electric motor, reducer, belts, pulleys and 2 pieces of gear transmission. The results of performance testing machine crusher round cylinder 75 RPM and 1450 RPM reel-type cutting machine capacity ± 300 kg / h on the filter hole Ø 1.5 cm, with a 80% grain uniformity.

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Recent Applications of Nonradiative Energy Transfer to Polymer Studies

Collection of Czechoslovak Chemical Communications ◽

10.1135/cccc19932266 ◽

1993 ◽

Vol 58 (10) ◽

pp. 2266-2271 ◽

Cited By ~ 1

Author(s):

Herbert Morawetz

Keyword(s):

Energy Transfer ◽

Polymer Chain ◽

Cluster Formation ◽

Nonradiative Energy Transfer ◽

Molecular Cluster ◽

Fluorescent Labels ◽

Latex Particles ◽

Polymer Latex

Recent studies of polymers in solution and in bulk by energy transfer between two fluorescent labels are reviewed. Such studies are concerned with the equilibrium and dynamics of polymer chain expansion, molecular cluster formation in solution, the miscibility of polymers in bulk, and the interdiffusion of polymer latex particles.

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Functionalization of Crumb Rubber Surface for the Incorporation into Asphalt Layers of Reduced Stiffness: An Overview of Existing Treatment Approaches

Recycling ◽

10.3390/recycling6010019 ◽

2021 ◽

Vol 6 (1) ◽

pp. 19

Author(s):

Christina Makoundou ◽

Kenth Johansson ◽

Viveca Wallqvist ◽

Cesare Sangiorgi

Keyword(s):

Gamma Ray ◽

Crumb Rubber ◽

Contaminant Removal ◽

Surface Adhesion ◽

Asphalt Mixes ◽

Plastic Recycling ◽

Physical Treatments ◽

Uv Ozone ◽

Reactive Properties ◽

Mineral Aggregates

The substitution of mineral aggregates with crumb rubber (CR) from waste end-of-life tires (ELTs) in the asphalt concretes, has been considered a sustainable paving industry approach. The rubber has been used to construct pavements with proven enhanced resilience and improved durability. However, some issues related to the rubber’s surface adhesion or swelling may arise with these practices and generate complications (binder consumption, temperatures, mixing times). One possible solution to overcome the materials’ compatibility problems is to pre-treat the CR’s surface before its incorporation into the asphalt mixes to allow a surface functionalization that can enhance coverage and cohesion inside the mixes. The physical treatments using radiations-based beam are already exploited in the plastic recycling industries avoiding the use of chemicals in considerable amounts. Such treatments permit the recovering of large quantities of polymer-based materials and the enhancement of interfacial properties. This article provides an overview of existing surface treatments of polymers and especially rubber, including gamma ray, UV-ozone, microwaves, and plasma. Several studies have shown an overall improvement of the rubber surface’s reactive properties due to contaminant removal or roughness enhancement attributed to cross-linking or scission reactions occurring on the rubber’s surface layer. With those properties, the asphalt mixes’ phase stability properties are increased when the pre-treated rubber is incorporated. The treatments would permit to increase the CR quantities, yet reduce the layer stiffness, and improve the durability and the sustainability of future advanced road pavements.

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Quantum dots as fluorescent labels for detection of heat shock protein in tumor tissue using laser scanning confocal microscope

Journal of Wuhan University of Technology-Mater Sci Ed ◽

10.1007/s11595-010-2257-3 ◽

2010 ◽

Vol 25 (2) ◽

pp. 257-259

Author(s):

Huan Yang ◽

Zhangqun Ye ◽

Zhiqiang Chen ◽

Jie Zhang ◽

Peng Ye

Keyword(s):

Quantum Dots ◽

Heat Shock ◽

Heat Shock Protein ◽

Laser Scanning ◽

Tumor Tissue ◽

Confocal Microscope ◽

Fluorescent Labels ◽

Laser Scanning Confocal Microscope

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Aminoquinolines as fluorescent labels for hydrophilic interaction liquid chromatography of oligosaccharides

Biological Chemistry ◽

10.1515/hsz-2012-0169 ◽

2012 ◽

Vol 393 (8) ◽

pp. 757-765 ◽

Cited By ~ 3

Author(s):

Weston B. Struwe ◽

Pauline M. Rudd

Keyword(s):

Liquid Chromatography ◽

Hplc Analysis ◽

Three Dimensional ◽

Hydrophilic Interaction Liquid Chromatography ◽

Peak Capacity ◽

Fluorescent Labels ◽

Sample Analysis ◽

Hydrophilic Interaction ◽

Optimal Excitation ◽

Complex Sample

Abstract In this study, we investigated the potential of four different aminoquinoline (AQ) compounds as fluorescent labels for glycan analysis using hydrophilic interaction liquid chromatography (HILIC) and fluorescence detection (FLD). We confirmed the optimal excitation and emission wavelengths of 3-AQ and 6-AQ conjugated to glycan standards using three-dimensional fluorescent spectral scanning. The optimal excitation and emission wavelengths for 6-AQ were confirmed at λex=355 nm and λem=440 nm. We concluded that the optimal wavelengths for 3-AQ were λex=355 nm and λem=420 nm, which differed considerably from the wavelengths applied in previous reports. HILIC-FLD chromatograms using experimentally determined wavelengths were similar to 2-aminobenzamide controls, but the peak capacity and resolution differed significantly when published 3-AQ λex/em values were applied. Furthermore, we found that 5-AQ and 8-AQ labeled maltohexaose did not display any fluorescent pro\xadperties when used as a carbohydrate tag for HPLC analysis. Finally, we applied experimentally determined wavelengths to 3-AQ labeled N-glycans released from human IgG to illustrate changes in retention time as well as to demonstrate that AQ labeling is applicable to complex sample analysis via exoglycosidase sequencing.

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