Ignition of low-density expandable polystyrene foam by a hot particle

2015 ◽  
Vol 162 (11) ◽  
pp. 4112-4118 ◽  
Author(s):  
Supan Wang ◽  
Xinyan Huang ◽  
Haixiang Chen ◽  
Naian Liu ◽  
Guillermo Rein
Keyword(s):  
Low Density ◽  
Polystyrene Foam ◽  
Hot Particle ◽  
Expandable Polystyrene

Characterization of machined polystyrene foam

1989 ◽  
Vol 47 ◽  
pp. 372-373
Author(s):  
C. W. Price ◽  
E. F. Lindsey ◽  
R. M. Franks ◽  
M. A. Lane
Keyword(s):  
Surface Finish ◽  
Cell Walls ◽  
Surface Structures ◽  
Efficient Technique ◽  
Low Density ◽  
Polystyrene Foam ◽  
Planar Surfaces ◽  
Machining Characteristics

Diamond-point turning is an efficient technique for machining low-density polystyrene foam, and the surface finish can be substantially improved by grinding. However, both diamond-point turning and grinding tend to tear and fracture cell walls and leave asperities formed by agglomerations of fragmented cell walls. Vibratoming is proving to be an excellent technique to form planar surfaces in polystyrene, and the machining characteristics of vibratoming and diamond-point turning are compared.Our work has demonstrated that proper evaluation of surface structures in low density polystyrene foam requires stereoscopic examinations; tilts of + and − 3 1/2 degrees were used for the stereo pairs. Coating does not seriously distort low-density polystyrene foam. Therefore, the specimens were gold-palladium coated and examined in a Hitachi S-800 FESEM at 5 kV.

scholarly journals Carbon Fiber Reinforced Multi-Phase Epoxy Syntactic Foam (CFR-Epoxy-Hardener/HGMS/Aerogel-R-Hollow Epoxy Macrosphere(AR-HEMS))

Polymers ◽  
2021 ◽  
Vol 13 (5) ◽  
pp. 683
Author(s):  
Xinfeng Wu ◽  
Yuan Gao ◽  
Tao Jiang ◽  
Ying Wang ◽  
Ke Yang ◽  
...  
Keyword(s):  
Compressive Strength ◽  
Carbon Fiber ◽  
Deep Sea ◽  
Impact Resistance ◽  
Syntactic Foam ◽  
Low Density ◽  
Expandable Polystyrene ◽  
Two Factors ◽  
Inner Diameter ◽  
Multi Phase

Because the aerogel has ultra-low density and good impact resistance, the aerogel material, epoxy-hardener system, and expandable polystyrene beads (EPS) were used to prepare the lightweight aerogel reinforced hollow epoxy macro-spheres (AR-HEMS). The multi-phase epoxy syntactic foam (ESF) was manufactured with the epoxy-hardener system, HGMS (EP-hardener-HGMS), and AR-HEMS by “the compression modeling method.” In this experiment, in order to enhance the strength of the ESF, some different kinds of the carbon fiber (CF) were added into the EP-hardener-HGMS system (CFR-EP). The influence of the volume stacking fraction, inner diameter, and layer of the AR-HEMS and the content and type of the CF in the EP-HGMS (CFR-EP) system on the compressive strength of the ESF were studied. Weighing the two factors of the density and compressive strength, the ESF reinforced by 1.5 wt% CF with 90% AR-HEMS has the better performance. This kind of the ESF has 0.428 g/cm3 nd 20.76 Mpa, which could be applied in 2076 m deep sea.

Preparation of Styrene-Acrylate Emulsion (SAE) Latex by Recycling Waste Expandable Polystyrene Foam

2013 ◽  
Vol 700 ◽  
pp. 199-203 ◽  
Author(s):  
Jian Huang ◽  
Hai Bo Yin ◽  
Bao Guo Ma ◽  
Zheng Dong Hong
Keyword(s):  
Particle Size ◽  
Chemical Composition ◽  
Monomer Conversion ◽  
Solid Content ◽  
Content Increase ◽  
Polymerization Time ◽  
Polystyrene Foam ◽  
Emulsion Droplets ◽  
Expandable Polystyrene ◽  
Acrylate Emulsion

This study explored recycling waste expandable polystyrene (EPS) foam to produce styrene-acrylate emulsion (SAE) latex. EPS substituted styrene ranging from 10% to 50%. Flocculation was observed when EPS content is >40%. Solid content and gel rate confirmed this observation. Particle size distribution showed particle size increased and its distribution broadened as EPS content increased. This may probably due to the viscosity increment of the emulsion droplets when EPS content increase and lead to increment of the droplets size and the emulsion gradually lost stability, therefore the solid content and gel rate increased. Hence stable SAE can be produced with EPS <30%. Monomer conversion results showed EPS did not affect the final monomer conversion percentage. IR results showed that incorporation of EPS did not alter the chemical composition of the SAE product. The presence of EPS lowered the monomer conversion rate and but did not save the polymerization time.

Co-Pyrolysis Kinetics of Expandable Polystyrene Foam Plastics and Biomass

2012 ◽  
Vol 518-523 ◽  
pp. 3295-3301 ◽  
Author(s):  
Bao Xia Li ◽  
Pen Jin ◽  
Shou Kun Cao
Keyword(s):  
Synergistic Effects ◽  
Reaction Model ◽  
Peanut Shell ◽  
Polystyrene Foam ◽  
Pyrolysis Kinetics ◽  
First Order ◽  
Expandable Polystyrene ◽  
The One ◽  
Kinetics Of ◽  
Foam Plastics

Based on the thermogravimetric analysis, co-pyrolysis of expandable polystyrene foam plastics (EPS) and three kinds of biomass (bagasse, peanut shell, corncob) were investigated. The result shows that synergistic effects of the co-pyrolysis of EPS/bagasse and EPS/corncob are obvious, but there is no remarkable synergistic effect for the EPS and peanut shell blends. The kinetic analysis indicates that the pyrolysis processes can be described as first order reactions model, a pretty good fitting of experimental data was obtained for all samples. In the EPS and the biomass pyrolysis, respectively， the former can be described as the one first-order reaction model, and the latter can be described as the three consecutive models, while the co-pyrolysis of EPS and biomass needs to be described as the four consecutive models.

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