Ammonium Polyphosphate Nplaim Retardant Mechanism thiab Advantage
Ammonium polyphosphate (APP) nplaim retardant tuaj yeem muab faib ua peb hom raws li nws cov degree ntawm polymerization: qis, nruab nrab, thiab siab polymerization. Qhov siab dua ntawm polymerization degree, qhov qis dua cov dej solubility, thiab vice versa. Structurely, nws tuaj yeem muab faib ua crystalline thiab amorphous cov ntaub ntawv, nrog crystalline APP yog cov saw ntev dej-insoluble ntsev. Cov mis mos molecular ntawm APP yog (NH₄)ₙ₊₂PₙO₃ₙ₊₁. Thaum n ranges ntawm 10 mus rau 20, nws yog dej-soluble; Thaum n tshaj 20, nws yuav insoluble. APP yog tsis muaj tshuaj lom, tsis muaj ntxhiab, tsis muaj corrosive, thiab nthuav tawm tsis tshua muaj hygroscopicity, siab thermal stability, thiab kev ua tau zoo heev raws li cov nplaim hluav taws tsis muaj halogen.
Nplaim Retardant Mechanism ntawm APP:
Thaum rhuab, APP decomposes los ua poly- / metaphosphoric acid, uas txhawb nqa lub cev qhuav dej thiab carbonization ntawm cov ntaub ntawv organic. Nws nthuav dav thaum cua sov, tsim cov txheej txheem tiv thaiv uas cais cov khoom ntawm cov pa oxygen, yog li ua tiav cov nplaim hluav taws. Tsis tas li ntawd, lub thermal decomposition ntawm APP tso tawm cov roj uas tsis yog-combustible xws li CO₂ thiab NH₃, uas dilute cov pa concentration nyob rau hauv cov huab cua, ntxiv txiav tawm cov pa oxygen. Cov yam ntxwv no ua rau cov pa luam yeeb tsawg, tsis muaj cov pa phem ntau lawm, thiab cov khoom tua tus kheej. Qhov tseem ceeb, qhov tsis muaj cov pa roj carbon monoxide tsis yog tsuas yog ib puag ncig zoo xwb tab sis kuj tseem ceeb rau kev nyab xeeb ntawm lub neej - cov ntaub ntawv qhia tias ntau dua 80% ntawm cov neeg tuag nyob rau hauv qhov teeb meem hluav taws kub loj yog tshwm sim los ntawm cov pa phem los ntawm hluav taws kub nyhiab, cov khoom siv hluav taws xob, thiab lwm yam khoom siv, es tsis yog cov nplaim taws lawv tus kheej.
Chaw tsim tshuaj paus ntawm APP Nplaim Retardant:
Taifeng nplaim retardant siv thoob ntiaj teb advanced multi-layer microencapsulation tshuab los tsim high-polymerization-degree APP nrog siab phosphorus thiab nitrogen cov ntsiab lus. Cov khoom nta zoo heev thermal stability, tsis tshua muaj dej solubility, ze-neutral pH, thiab siab nplaim-retardant efficiency. Nws yog cov hmoov dawb dawb, tsis yog-hygroscopic, tsis-flammable, thiab nthuav tawm qhov hnyav molecular (n> 1200), ruaj khov, thiab huab cua tsis kam. Nws yog dav siv nyob rau hauv dej-raws li fireproof coatings, textile coatings, thiab raws li ib tug tseem ceeb feem nyob rau hauv intumescent nplaim-retardant thermoplastics. Cov khoom encapsulated undergoes nto kho kom zoo dua compatibility, txhim khu kev ya raws, alkaline pH, thiab txawm txo dej solubility.
More info., pls contact lucy@taifeng-fr.com
Post lub sij hawm: Aug-19-2025
