The combustion of polyolefins filled with metallic hydroxides and antimony trioxide

Baillet, C.; Delfosse, L.

doi:10.1016/0141-3910(90)90119-r

Cited by 25 publications

(11 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A plausible solution to this problem is the addition of flame retardant additives which may improve the fire safety of EVA-based materials. Non-halogenated flame retardant additives, such as intumescent systems [2,3], carbon nanotubes [4,5], modified natural cationic clays [6], metal hydroxides [7], and oxides of group III and V elements [8] have been widely utilized with EVA. However, more recently synthetic clays, known as layered double hydroxides (LDH), have been used with EVA and do show flame retardancy potential [9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Thermal stability and flammability characteristics of ethylene vinyl acetate (EVA) composites blended with a phenyl phosphonate-intercalated layered double hydroxide (LDH), melamine polyphosphate and/or boric acid

Nyambo

Kandare

Wilkie

2009

Polymer Degradation and Stability

124

View full text Add to dashboard Cite

a b s t r a c tA phenyl phosphonate-intercalated MgAl-LDH (MgAl-PPh), melamine polyphosphate (MP), and boric acid (BA) were independently and concomitantly added to neat ethylene vinyl acetate (EVA) copolymer at loading fractions of 10% (w/w). The structural morphology of MgAl-PPh was established via powder Xray diffraction (PXRD) and scanning electron microscopy (SEM) while the presence of phenyl phosphonate in the galleries was confirmed by Fourier transform infrared (FTIR). Thermogravimetric analysis (TGA) and cone calorimetry were used to evaluate the thermal stability and flammability behavior of EVA and its composites. While time-to-ignition is greatly reduced for EVA composites compared to the virgin polymer, there are remarkable reductions in the peak heat release rate (PHRR) which relates to a reduction in flame intensity. Synergistic effects were observed in cone calorimetry for the formulation containing MgAl-PPh, MP, and BA.

show abstract

Section: Introductionmentioning

confidence: 99%

Thermal stability and flammability characteristics of ethylene vinyl acetate (EVA) composites blended with a phenyl phosphonate-intercalated layered double hydroxide (LDH), melamine polyphosphate and/or boric acid

Nyambo

Kandare

Wilkie

2009

Polymer Degradation and Stability

124

View full text Add to dashboard Cite

show abstract

“…Calcium carbonate is also used to adjust price and elastic modulus. However, to achieve desirable properties, a high loading of mineral fillers should be used which may lead to a dramatic decrease in mechanical properties and an increase of the density of the final product [4][5][6][7][8][9]. Also, the effect of aluminium hydroxide, antimony trioxide and EVA on the properties of silane crosslinked LDPE was investigated [10].…”

Section: Introductionmentioning

confidence: 99%

Effect of layered silicate nanoclay on the properties of silane crosslinked linear low-density polyethylene (LLDPE)

Azizi

Morshedian²,

Barikani³

et al. 2010

Express Polym. Lett.

View full text Add to dashboard Cite

Abstract. In the present work, the effect of pristine layered silicate montmorillonite (MMT) nanoclay on the properties of silane-crosslinked LLDPE prepared by melt compounding is investigated. The effect of the sequence of feeding additives (nanoclay and grafting agent) into the mixer on gel content, thermal and mechanical properties were studied. Results demonstrate that the sequence of feeding additives influences the final properties of nanocomposites. For samples prepared by first grafting of silane on LLDPE followed by incorporation of nanoclay into the polymer matrix, the gel content and the rate of crosslinking increased, while the elongation at break decreased. For samples prepared by first mixing nanoclay into the LLDPE matrix followed by the grafting reaction, the rate of crosslinking and the tensile properties did not change significantly. The gel content increased with increasing content of nanoclay for both process routes due to an enhanced permeation of water molecules into the polymer matrix in the presence of polar montmorillonite particles. Wide angle X-ray scattering (WAXS) results proved the intercalation/partial exfoliation morphology of nanoclay in the silane-grafted LLDPE matrix. Differential scanning calorimetry (DSC) data showed multiple melting behaviour for crosslinked samples which is indicative for different crystalline structures of the sol and gel part of the LLDPE matrix.

show abstract

“…However one of the major drawbacks of adding these fillers is that the mechanical properties become much poorer than those of samples without added fillers. Several methods can be used to improve the interaction between polymer and filler [18][19][20][21][22][23]. Crosslinking can be a suitable method for this purpose [24,25].…”

Section: Introductionmentioning

confidence: 99%

Silane crosslinking of polyethylene: the effects of EVA, ATH and Sb2O3 on properties of the production in continuous grafting of LDPE

Azizi

Barzin²,

Morshedian³

2007

Express Polym. Lett.

View full text Add to dashboard Cite

Abstract. In this study, thermal, mechanical and fire retardant properties of silane-crosslinked low-density polyethylene (XLPE) containing ethylene-vinylacetate (EVA) copolymer, alumina trihydrate (ATH) and antimony trioxide (Sb2O3) have been studied. Samples were prepared in a single-screw extruder and the silane type was vinyltrimethoxy silane (VTMOS). Incorporation of ATH and Sb2O3 into polyethylene at sufficiently high loading introduces good fire retardancy expressed by limiting oxygen index (LOI). However, some tensile properties decreased. These limitations could be overcome by silane crosslinking. By incorporation of EVA into XLPE gel content increased and curing time decreased. Differential scanning calorimetric (DSC) analysis indicated the existence of two distinct melting endothermic peaks corresponding to two different crystalline phases. Results from mechanical properties showed that mechanical properties of XLPE/EVA blends improve by increasing EVA content up to 15 wt%.

show abstract

The combustion of polyolefins filled with metallic hydroxides and antimony trioxide

Cited by 25 publications

References 4 publications

Thermal stability and flammability characteristics of ethylene vinyl acetate (EVA) composites blended with a phenyl phosphonate-intercalated layered double hydroxide (LDH), melamine polyphosphate and/or boric acid

Thermal stability and flammability characteristics of ethylene vinyl acetate (EVA) composites blended with a phenyl phosphonate-intercalated layered double hydroxide (LDH), melamine polyphosphate and/or boric acid

Effect of layered silicate nanoclay on the properties of silane crosslinked linear low-density polyethylene (LLDPE)

Silane crosslinking of polyethylene: the effects of EVA, ATH and Sb2O3 on properties of the production in continuous grafting of LDPE

Contact Info

Product

Resources

About