Ammonium Polyphosphate iFlame Retardant Mechanism kunye nenzuzo

I-Ammonium Polyphosphate i-Flame Retardant Mechanism kunye ne-Advantage

I-Ammonium polyphosphate (APP) i-flame retardant ingahlelwa ngokweendidi ezintathu ngokusekelwe kwiqondo layo le-polymerization: ephantsi, ephakathi, kunye ne-polymerization ephezulu. Ukuphakama kwesidanga sepolymerization, kokukhona kusezantsi ukunyibilika kwamanzi, kwaye ngokuphambeneyo. Ngokwesakhiwo, inokwahlulwa ibe ziifom zekristale kunye ne-amorphous, kunye ne-crystalline APP ibe yityuwa emide enganyibilikiyo yamanzi. Ifomula yemolekyuli jikelele ye-APP ithi (NH₄)ₙ₊₂PₙO₃ₙ₊₁. Xa i-n isuka kwi-10 ukuya kwi-20, i-soluble yamanzi; xa n idlula 20, iba enganyibilikiyo. I-APP ayinatyhefu, ayinavumba, ayinamhlwa, kwaye ibonisa i-hygroscopicity ephantsi, uzinzo oluphezulu lwe-thermal, kunye nokusebenza okugqwesileyo njenge-halogen-free flame retardant.

Indlela yokuBuyiselwa komlilo ye-APP:
Xa ishushu, i-APP iyabola ukuze yenze i-poly-/metaphosphoric acid, ekhuthaza ukuchithwa kwamanzi kunye ne-carbonization ebusweni bezinto eziphilayo. Yandisa xa ifudumeza, yenza umaleko okhuselayo ohlukanisa izinto kwi-oksijini, ngaloo ndlela ufezekise ukubuyiswa komlilo. Ukongezelela, ukubola kwe-thermal ye-APP ikhupha iigesi ezingatshayo ezifana ne-CO₂ kunye ne-NH₃, ezihlambulula i-oksijini yoxinaniso emoyeni, inqumle ngakumbi ukunikezelwa kwe-oxygen. Ezi mpawu zibangela ukukhutshwa komsi ophantsi, akukho mveliso yegesi eyityhefu, kunye neempawu zokuzicima. Ngokucacileyo, ukungabikho kweegesi ezinobuthi akugcini nje ngokusingqongileyo kodwa kubaluleke kakhulu kukhuseleko lobomi-izibalo zibonisa ukuba ngaphezu kwe-80% yokufa kwiziganeko ezinkulu zomlilo zibangelwa yimfucu enetyhefu evela kwiiplastiki ezivuthayo, izixhobo ze-elektroniki kunye nezinye izinto, kunokuba amadangatye ngokwawo.

Umvelisi we-APP yokuRetardant yomlilo:
I-Taifeng Flame Retardant isebenzisa iteknoloji ye-microencapsulation ekumgangatho ophezulu kumazwe ngamazwe ukuvelisa i-APP ye-polymerization-degree ephezulu kunye nomxholo we-phosphorus kunye ne-nitrogen. Imveliso ibonakalisa uzinzo oluhle kakhulu lwe-thermal, ukunyibilika kwamanzi aphantsi, i-pH esondeleyo, kunye nokusebenza kakuhle komlilo. Iyimpuphu emhlophe eqinile, i-non-hygroscopic, engatshiyo, kwaye ibonisa ubunzima obuphezulu be-molecular (n> 1200), ukuzinza, kunye nokuchasana kwemozulu. Isetyenziswa ngokubanzi kwimigqubuthelo yomlilo esekelwe emanzini, i-textile coatings, kunye neyona nto iphambili kwi-thermoplastics ye-intumescent flame-retardant. Imveliso egqunyiweyo iphantsi konyango lomgangatho wokuhambelana okuphuculweyo, ukomelela kokuqina kokufuma, i-alkaline pH, kunye nokunyibilika okuphantsi kwamanzi.

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