Ammonium polyphosphate (APP) yog ib yam khoom siv uas siv dav dav los tiv thaiv hluav taws thiab ua chiv, uas paub txog nws txoj kev ua haujlwm zoo hauv kev txhim kho kev tiv thaiv hluav taws hauv ntau yam khoom siv. Ib qho ntawm cov txheej txheem tshuaj xyuas tseem ceeb uas siv los nkag siab txog cov khoom thermal ntawm APP yog Thermogravimetric Analysis (TGA). TGA ntsuas qhov kev hloov pauv ntawm qhov hnyav ntawm ib yam khoom thaum nws raug cua sov, txias, lossis tuav ntawm qhov kub tas li, muab cov kev nkag siab tseem ceeb rau nws qhov kev ruaj khov thermal, tus cwj pwm decomposition, thiab kev ua tau zoo tag nrho hauv kev siv.
Qhov tseem ceeb ntawm TGA hauv kev kawm txog ammonium polyphosphate tsis tuaj yeem hais ntau dhau. Ua ntej tshaj plaws, TGA pab txiav txim siab qhov ruaj khov ntawm APP. Kev nkag siab txog qhov kub thiab txias uas APP tseem ruaj khov yog qhov tseem ceeb rau nws daim ntawv thov hauv kev tiv thaiv hluav taws. Yog tias APP lwj ntawm qhov kub qis dua, nws yuav tsis zoo hauv kev tiv thaiv cov khoom ntawm hluav taws, vim nws yuav poob nws cov khoom tiv thaiv hluav taws ua ntej cov khoom nws tus kheej mus txog qhov kub tseem ceeb. TGA tso cai rau cov kws tshawb fawb txheeb xyuas qhov pib ntawm kev lwj, ua rau lawv tuaj yeem ua kom zoo dua cov qauv rau cov ntawv thov tshwj xeeb.
Ntxiv mus, TGA muab kev nkag siab txog cov khoom tawg ntawm APP. Kev puas tsuaj ntawm ammonium polyphosphate tuaj yeem ua rau muaj ntau yam roj, suav nrog ammonia thiab phosphoric acid. Los ntawm kev tshuaj xyuas qhov poob ntawm ntau theem kub sib txawv, cov kws tshawb fawb tuaj yeem txheeb xyuas qhov kub tshwj xeeb uas cov roj no raug tso tawm. Cov ntaub ntawv no tseem ceeb rau kev nkag siab txog lub tshuab ntawm kev tiv thaiv hluav taws, vim tias kev tso tawm ntawm cov roj uas tsis yooj yim hluav taws tuaj yeem ua rau cov pa hluav taws tsis yooj yim thiab txo qhov kev kub hnyiab ntawm cov khoom.
Lwm yam tseem ceeb ntawm TGA yog nws lub luag haujlwm hauv kev tsim cov khoom sib xyaw ua ke APP. Hauv ntau daim ntawv thov, APP raug sib xyaw nrog lwm cov ntaub ntawv los txhim kho nws cov kev ua tau zoo. TGA tuaj yeem siv los ntsuas qhov sib xws thiab kev ruaj khov ntawm cov khoom sib xyaw no hauv qab kev ntxhov siab thermal. Los ntawm kev soj ntsuam tus cwj pwm thermal ntawm cov ntaub ntawv sib xyaw, cov kws tshawb fawb tuaj yeem txiav txim siab qhov piv zoo tshaj plaws ntawm APP rau lwm cov khoom, kom ntseeg tau tias cov khoom kawg tswj hwm nws cov khoom tiv thaiv hluav taws thaum ua tiav cov yam ntxwv kho tshuab thiab thermal xav tau.
Ntxiv mus, TGA tuaj yeem pab tswj xyuas qhov zoo thaum lub sijhawm tsim cov ammonium polyphosphate. Los ntawm kev tsim kom muaj cov qauv thermal rau APP, cov chaw tsim khoom tuaj yeem saib xyuas qhov sib xws thiab qhov zoo ntawm lawv cov khoom. Kev hloov pauv ntawm tus cwj pwm thermal uas tau tsim tsa yuav qhia txog teeb meem hauv cov txheej txheem tsim khoom, xws li kev tsis ua tiav lossis kev ua qias tuaj, uas tuaj yeem ua rau qhov ua tau zoo ntawm cov tshuaj tua hluav taws tsis zoo.
Xaus lus, qhov tseem ceeb ntawm TGA hauv kev kawm txog ammonium polyphosphate yog nws lub peev xwm los muab cov ntaub ntawv tseem ceeb txog kev ruaj khov thermal, tus cwj pwm decomposition, thiab kev sib raug zoo nrog lwm cov ntaub ntawv. Cov txheej txheem analytical no tsis yog tsuas yog txhim kho peb txoj kev nkag siab txog APP qhov kev ua tau zoo ua ib qho flame retardant tab sis kuj ua lub luag haujlwm tseem ceeb hauv kev tsim thiab kev tswj xyuas zoo ntawm cov khoom APP. Thaum cov lag luam txuas ntxiv nrhiav kev daws teeb meem kev nyab xeeb hluav taws zoo, cov kev nkag siab tau los ntawm TGA yuav tseem muaj txiaj ntsig zoo rau kev txhim kho kev siv ammonium polyphosphate hauv ntau qhov chaw.
Sichuan Taifeng Tshiab Hluav Taws Kub Retardant Co., Ltdyog ib lub chaw tsim khoom nrog 22 xyoo ntawm kev paub tshwj xeeb hauv kev tsim cov ammonium polyphosphate nplaim taws retardants, peb cov prouducts tau dav xa tawm mus rau txawv teb chaws.
Peb tus sawv cev rau cov nplaim taws retardantTF-241yog ib puag ncig-phooj ywg thiab pheej yig, nws muaj daim ntawv thov paub tab hauv PP, PE, HEDP.
Yog tias koj xav paub ntxiv, thov hu rau peb.
Tiv tauj: Cherry He
Email: sales2@taifeng-fr.com
Lub sijhawm tshaj tawm: Lub Kaum Hli-29-2024
