This paper investigated the influence of ammonium polyphosphate (APP) and ammonium polyphosphate modified with 3-(methylacryloxyl) propyltrimethoxy silane (M-APP) on flame retardancy and thermal degradation of pine needles. The presence of M-APP increased the char residue and decreased the pyrolysis temperature of pine needles observed by TGA. The addition of M-APP shifted the degradation peaks of pine needles to lower temperatures observed by DTG. The cone calorimetry test results showed that the situation of HRR, THR, SPR, TSP and the mass loss (%) on pine needles treated with M-APP was sharply less than the other samples. On the other hand, M-APP prolonged the ignition time (TTI) compared with the other samples. Therefore, M-APP has an overall better performance than APP on pine needles.
PappaA.A., TzamtzisN.E., StatheropoulosM.K., LiodakisS.E., and ParissakisG.K.A comparative study of the effects of fire retardants on the pyrolysis of cellulose and Pinus halepensis pine-needles. J. Anal. Appl. Pyrolysis, 31 (1995) 85–100.
2.
LiodakisS., AntonopoulosI., and KakardakisT.Evaluating the use of minerals as forest fire retardants. Fire Safety J., 45 (2010) 98–105.
3.
ÀguedaA., PastorE., and PlanasE.Different scales for studying the effectiveness of long-term forest fire retardants. Prog. Energ. Combust., 34 (2008) 782–796.
4.
PappaA., MikediK., TzamtzisN., and StatheropoulosM.TG-MS analysis for studying the effects of fire retardants on the pyrolysis of pine-needles and their components. J. Therm. Anal. Calorim., 84(3) (2006) 655–661.
5.
ÀguedaA., PastorE., PérezY., ViegasD.X., and PlanasE.Fire intensity reduction in straw fuel beds treated with a long-term retardant. Fire Safety J., 46 (2011) 41–47.
6.
LiodakisS., BakirtzisD., and DimitrakopoulosA.P.Autoignition and thermogravimetric analysis of forest species treated with fire retardants. Thermochim. Acta, 399 (2003) 31–42.
7.
BaysalE., AltinokM., ColakM., OzakiS.K., and TokerH.Fire resistance of Douglas fir (Pseudotsuga menzieesi) treated with borates and natural extractives. Bioresource Technol., 98 (2007) 1101–1105.
8.
KalabokidisK.D.Effects of wildfire suppression chemicals on people and the environment-a review. Global Nest: the Int. J., 2(2) (2000) 129–137.
9.
TanF.T., MaX.Q., and FengC.Investigation on combustion of fire retardant board under different N2–O2 mixture gas atmospheres by using thermogravimetric analysis. Constr. Build. Mater., 25 (2011) 2076–2084.
10.
LiodakisS., VorisisD., and AgiovlasitisI.P.Testing the retardancy effect of various inorganic chemicals on smoldering combustion of Pinus halepensis needles. Thermochim. Acta, 444 (2006) 157–165.
11.
WangS.Y., YangT.H., LinL.T., LinC.J., and TsaiM.J.Fire-retardant-treated low-formaldehyde-emission particleboard made from recycled wood-waste. Bioresource Technol., 99 (2008) 2072–2077.
12.
GarbaB., EboatuA.N., and Atta-ElmannanM.A.Effect of flame retardant treatment on energy of pyrolysis/combustion of wood cellulose. Fire Mater., 18(6) (1994) 381–383.
13.
SekiguchiY., and ShafizadehF.Effect inorganic additives on the formation, composition, and combustion of cellulosic char. J. Appl. Polym. Sci., 29 (1984) 1267–1286.
14.
FaroqA.A., PriceD., MilnesG.J., and HorrocksA.R.Use of gas chromatographic analysis of volatile products to investigate the mechanisms underlying the influence of flame retardants on the pyrolysis of cellulose in air. Polym. Degrad. Stabil., 33 (1991) 155–170.
15.
BuyuksariU., AyrilmisN., AvciE., and KocE.Evaluation of the physical, mechanical properties and formaldehyde emission of particleboard manufactured from waste stone pine (Pinus pinea L.) cones. Bioresource Technol., 101 (2010) 255–259.
16.
LiodakisS.E., StatheropoulosM.K., TzamtzisN.E.Pappa A.A., and Parissakis G.K., The effect of salt and oxide-hydroxide additives on the pyrolysis of cellulose and pinus halepensis pine needles. Thermochim. Acta, 278 (1996) 99–108.
17.
StatheropoulosM., LiodakisS., TzamtzisN., PappaandA., and KyriakouS.Thermal degradation of Pinus halepensis pine-needles using various analytical methods. J. Anal. Appl. Pyrol., 43 (1997) 115–123.
18.
TzamtzisN., PappaA., and MourikisA.The effect of (NH4)2HPO4 and (NH4)2SO4 on the composition of the volatile organic pyrolysis products of Pinus halepenisis pine-needles. Polym. Degrad. Stabil., 66 (1999) 55–63.
19.
TzamtzisN., PappaA., StatheropoulosM., and FasseasC.Effects of fire retardants on the pyroysis of Pinus halepensis needles using microscopic techniques. J. Anal. Appl. Pyrol., 63(1) (2002) 147–156.
20.
GriffinG.J.The effect of fire retardants on combustion and pyrolysis of sugar-cane bagasse. Bioresource Technol., 102(17) (2011) 8199–8204.
21.
ÀguedaA., PastorE., PérezY., and PlanasE.Experimental study of the emissivity of flames resulting from the combustion of forest fuels. Int. J. Therm. Sci., 49 (2010) 543–554.
22.
CastrovinciA., CaminoG., DrevelleC., DuquesneS., MagniezC., and VoutersM.Ammonium polyphosphate-aluminum trihydroxide antagonism in fire retarded butadiene-styrene block copolymer. Eur. Polym. J., 41(9) (2005) 2023–2033.
23.
RivaA., CaminoG., FomperieL., and AmigouetP.Fire retardant mechanism in intumescent ethylene vinyl acetate compositions. Polym. Degrad. Stabil., 82(2) (2003) 341–346.
24.
ZhaoC.X., LiuY., WangD.Y., WangD.L., and WangY.Z.Synergistic effect of ammonium polyphosphate and layered double hydroxide on flame retardant properties of poly(vinyl alcohol). Polym. Degrad. Stabil., 93(7) (2008) 1323–1331.
25.
LinH.J., YanH., LiuB., WeiL.Q., and XuB.S.The influence of KH-550 on properties of ammonium polyphosphate and polypropylene flame retardant composites. Polym. Degrad. Stabil., 96 (2011) 1382–1388.
26.
ZhouL., GuoC.G., and LiL.P.Influence of Ammonium Polyphosphate Modified with 3-(Methylacryloxyl) Propyltrimethoxy Silane on Mechanical and Thermal Properties of Wood Flour-Polypropylene Composites. J. Appl. Polym. Sci., 122(2) (2011) 849–855.
27.
LiodakisS., AntonopoulosI., and TsaparaV.Forest fire retardancy evaluation of carbonate minerals using DTG and LOI. J. Therm. Anal. Calorim., 96 (2009) 203–209.
28.
BabrauskasU.Development of the Cone Calorimeter-a bench scale heat release rate apparatus based on oxygen consumption. Fire Mater., 8(2) (1984) 81–95.
29.
PriceD., BullettK.J., CunliffeL.K., HullT.R., MilnesG.J., EbdonJ.R., HuntB.J., and JosephP.Cone calorimetry studies of polymer systems flame retarded by chemically bonded phosphorus. Polym. Degrad. Stabil., 88(1) (2005) 74–79.
