<trans-title>Improvement of Metal Caions in Polyoxometalate on Flame Retardant Efficiency of Polypropylene</trans-title>

Yimin LI; Chengle WANG; Juan LI

doi:10.15541/jim20190529

Journal of Inorganic Materials, Volume. 35, Issue 9, 1029(2020)

Improvement of Metal Caions in Polyoxometalate on Flame Retardant Efficiency of Polypropylene

Yimin LI¹, Chengle WANG², and Juan LI^2、*

Author Affiliations

¹Sinopec Zhenhai Refining & Chemical Company, Ningbo 315207, China

²Ningbo Key Laboratory of Polymer Materials, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo 315201, China

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Figures & Tables(8)

1. TGA curves (a) and FT-IR spectra (b) of different PMos

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2. Photographs of infrared thermal imaging for PP composites

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3. TGA curves of PP composites tested in (a) N₂and (b) air

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4. Change of (a) HRR and (b) THR with time for PP composite at a heat flux of 35 kW/m²

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5. Photos of char layers for PP composites after cone calorimeter test

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6. SEM images of char layers for PP composites after cone calorimeter test

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Table 1. Flame retardant properties of PP composites
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Table 1. Flame retardant properties of PP composites
No. PP/wt% IFR/wt% Synergists/wt% UL-943.2 mm LOI
S1 100.0 0 No NC 17.2
S2 85.0 15.0 No NC 23.1
S3 85.0 14.5 0.5(NiPMo) V-1 26.1
S4 85.0 14.5 0.5(NaPMo) V-0 26.8
S5 85.0 14.5 0.5(ZnPMo) V-0 27.0
S6 75.0 25.0 No V-0 28.3

Table 2. Data from cone calorimeter test
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Table 2. Data from cone calorimeter test
No. TTI/s PHRR/(kW·m^-2) t_PHRR/s THR/(MJ·m^-2)
S1 50 706.3 175 107.3
S2 45 383.9 294 109.5
S3 40 344.0 353 106.9
S4 43 407.8 363 112.8
S5 43 390.2 356 110.0

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Yimin LI, Chengle WANG, Juan LI. Improvement of Metal Caions in Polyoxometalate on Flame Retardant Efficiency of Polypropylene[J]. Journal of Inorganic Materials, 2020, 35(9): 1029

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