Ammonium polyphosphate (APP) yog ib qho siv dav hauv inorganic compound, feem ntau lees paub rau nws lub luag haujlwm raws li cov nplaim hluav taws kub thiab cov chiv. Nws cov khoom tshwj xeeb ua rau nws yog ib qho tseem ceeb hauv ntau daim ntawv thov, suav nrog plastics, textiles, thiab coatings. Nkag siab txog qhov thermal stability ntawm ammonium polyphosphate yog qhov tseem ceeb rau nws txoj kev siv tau zoo, tshwj xeeb tshaj yog nyob rau hauv qhov chaw kub kub.
Qhov degradation ntawm ammonium polyphosphate feem ntau pib ntawm qhov kub siab, feem ntau ntawm 200 txog 300 degrees Celsius (392 txog 572 degrees Fahrenheit). Nyob rau ntawm qhov kub thiab txias, qhov sib xyaw ua rau muaj kev hloov pauv tshuaj lom neeg uas tuaj yeem ua rau tso tawm ammonia thiab phosphoric acid. Raws li qhov kub thiab txias nce ntxiv, tshwj xeeb tshaj yog tshaj 300 degrees Celsius, cov txheej txheem degradation nrawm, ua rau tawg ntawm cov qauv polymeric ntawm APP.
Lub thermal degradation ntawm ammonium polyphosphate tuaj yeem cuam tshuam los ntawm ntau yam, suav nrog nws qhov hnyav molecular, muaj cov additives, thiab cov qauv siv tshwj xeeb. Piv txwv li, qis molecular phaus APP zoo li degrade ntawm qis kub piv rau ntau dua molecular hnyav variants. Tsis tas li ntawd, muaj lwm yam ntaub ntawv nyob rau hauv ib tug composite formulation tuaj yeem txhim kho lossis cuam tshuam cov txheej txheem degradation, nyob ntawm lawv cov khoom thermal thiab kev cuam tshuam nrog APP.
Ib qho tseem ceeb ntawm ammonium polyphosphate tus cwj pwm thermal yog nws lub luag haujlwm raws li cov nplaim hluav taws. Thaum raug tshav kub, APP tuaj yeem tso cov pa roj uas tsis muaj hluav taws xob, uas ua rau cov hluav taws kub hnyiab thiab pab tiv thaiv kev sib tsoo. Cov cuab yeej no muaj txiaj ntsig tshwj xeeb hauv cov ntawv thov uas muaj kev nyab xeeb hluav taws kub ntxhov. Txawm li cas los xij, qhov ua tau zoo ntawm APP raws li cov nplaim hluav taws kub nyhiab yog nyob ze rau nws cov thermal stability. Yog tias APP degrades sai heev, nws yuav tsis muab qhov kev tiv thaiv qib uas xav tau.
Ntxiv mus, cov khoom degradation ntawm ammonium polyphosphate tuaj yeem cuam tshuam rau ib puag ncig thiab tib neeg kev noj qab haus huv. Piv txwv li, kev tso tawm ammonia tuaj yeem ua rau muaj pa phem thiab tuaj yeem ua rau muaj kev phom sij rau kev noj qab haus huv yog tias nqus tau ntau heev. Yog li ntawd, kev nkag siab txog qhov kub thiab txias thiab kev tso tawm tom ntej ntawm cov pa roj yog qhov tseem ceeb rau kev ntsuas kev nyab xeeb thiab ib puag ncig ntawm cov khoom uas muaj APP.
Hauv kev siv tswv yim, nws yog ib qho tseem ceeb uas yuav tau xav txog kev ua haujlwm thiab lub peev xwm rau thermal degradation thaum siv ammonium polyphosphate. Cov neeg tsim khoom feem ntau ua cov kev ntsuas cua sov, xws li ntsuas ntsuas ntsuas ntsuas (TGA), txhawm rau txiav txim siab qhov kub thiab txias degradation thiab ua kom zoo tshaj cov qauv rau kev ruaj ntseg thiab kev ua haujlwm.
Hauv kev xaus, ammonium polyphosphate pib degrade ntawm qhov kub ntawm ib ncig ntawm 200 txog 300 degrees Celsius, nrog rau qhov tseem ceeb degradation tshwm sim ntawm qhov kub siab dua. Nws cov thermal stability yog ib qho tseem ceeb hauv nws txoj kev ua tau zoo raws li cov nplaim hluav taws kub thiab nws cov khoom siv tag nrho hauv ntau yam kev siv. Kev nkag siab txog cov khoom siv thermal no tsis yog tsuas yog pab txhim kho cov khoom muaj kev nyab xeeb thiab muaj txiaj ntsig zoo dua, tab sis kuj ua kom muaj kev ua raws li kev cai ntawm ib puag ncig thiab kev noj qab haus huv. Raws li kev tshawb fawb txuas ntxiv, kev nkag siab ntxiv rau kev coj tus cwj pwm thermal ntawm ammonium polyphosphate yuav txhim kho nws cov ntawv thov thiab kev ruaj ntseg profiles hauv kev lag luam.
Sichuan Taifeng Tshiab Nplaim Retardant Co., Ltdyog lub chaw tsim khoom nrog 22 xyoo ntawm kev paub tshwj xeeb hauv kev tsim cov ammonium polyphosphate nplaim retardants, peb cov khoom lag luam tau dav xa tawm mus rau txawv teb chaws.
Peb tus neeg sawv cev nplaim taws retardantTSI-201yog eco-friendly thiab economical, nws muaj mature daim ntawv thov nyob rau hauv intumescent txheej, textile rov qab txheej, yas, ntoo, cable, adhesives thiab PU ua npuas ncauj.
Yog tias koj xav paub ntau ntxiv, thov hu rau peb.
Hu rau: Cherry He
Email: sales2@taifeng-fr.com
Post lub sij hawm: Oct-30-2024
