Design of fire resistant, sound-absorbing and thermal-insulated expandable polystyrene based lightweight particleboard composites

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.

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The flammability of expandable polystyrene foams coated with melamine modified urea formaldehyde resin

Journal of Applied Polymer Science ◽

10.1002/app.44423 ◽

2016 ◽

Vol 134 (5) ◽

Cited By ~ 7

Author(s):

Bo Cao ◽

Xiaoyu Gu ◽

Xiaohui Song ◽

Xiaodong Jin ◽

Xinyu Liu ◽

...

Keyword(s):

Urea Formaldehyde ◽

Urea Formaldehyde Resin ◽

Formaldehyde Resin ◽

Expandable Polystyrene ◽

Modified Urea

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Associativity modelling of a mould assembly for expandable polystyrene foam

International Journal of Production Research ◽

10.1080/00207549608904956 ◽

1996 ◽

Vol 34 (4) ◽

pp. 1161-1170 ◽

Cited By ~ 1

Author(s):

S.-W. LYE‡ ◽

H.-Y. YEONG

Keyword(s):

Polystyrene Foam ◽

Expandable Polystyrene

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A Reappraisal of Various Compacting Processes for Wasted Expandable Polystyrene (EPS) Foam

Materials Science Forum - Advances in Materials Manufacturing Science and Technology II ◽

10.4028/0-87849-421-9.261 ◽

2006 ◽

pp. 261-264

Author(s):

Jung Min Seo ◽

Beong Bok Hwang

Keyword(s):

Expandable Polystyrene

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Expandable polystyrene without any embedded blowing agent

Journal of Cellular Plastics ◽

10.1177/0021955x20944971 ◽

2020 ◽

pp. 0021955X2094497

Author(s):

Habib Haji Avdi ◽

Morteza Nasiri ◽

Mohammad Javad Tehrani ◽

Maryam Alizadeh Aghdam ◽

Farhang Abbasi

Keyword(s):

Suspension Polymerization ◽

Expansion Ratio ◽

Scanning Calorimetry ◽

Blowing Agents ◽

Blowing Agent ◽

Rate Of Polymerization ◽

Polystyrene Matrix ◽

Expandable Polystyrene ◽

Before And After

In this research, in-situ suspension polymerization of styrene in the presence of graphene, without any blowing agent, was investigated. Steam used in the expansion process of graphene-filled expandable polystyrene (GEPS). The dispersed graphene nano-sheets in the polystyrene matrix may absorb water in high temperatures, which evaporates by lowering the pressure and expansion precedes. The effects of graphene type and loading and steam temperature on the expansion ratio evaluated. Scanning electron microscopy (SEM) used to reveal the cross-section morphologies before and after expansion. The effect of graphene on the polymerization kinetics evaluated by differential scanning calorimetry (DSC). The results showed that by increasing the graphene loading, the rate of polymerization decreased, and the expansion ratio increased. The highest expansion ratio of about 4.8 was for particles containing 0.4% of graphene. Therefore, it was shown that by using graphene as a dispersed phase, polystyrene particles expanded without any organic blowing agents. Here, the idea of expandable polymers without any embedded blowing agent is introduced, which eliminates the release of volatile organic compounds and makes the process environmentally friendly.

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