Ammonium polyphosphate (APP) ndi feteleza wogwiritsidwa ntchito kwambiri, wodziwika bwino chifukwa cha mphamvu zake powonjezera kukana moto m'zinthu zosiyanasiyana. Njira imodzi yofunika kwambiri yowunikira yomwe imagwiritsidwa ntchito kumvetsetsa mphamvu za kutentha kwa APP ndi Thermogravimetric Analysis (TGA). TGA imayesa kusintha kwa kulemera kwa chinthu pamene chikutenthedwa, kuzizira, kapena kusungidwa pa kutentha kosasintha, kupereka chidziwitso chofunikira pa kukhazikika kwake kwa kutentha, momwe chimawola, komanso momwe chimagwirira ntchito.
Kufunika kwa TGA mu kafukufuku wa ammonium polyphosphate sikunganyalanyazidwe. Choyamba, TGA imathandiza kudziwa kukhazikika kwa kutentha kwa APP. Kumvetsetsa kutentha komwe APP imakhala yokhazikika ndikofunikira kwambiri pakugwiritsa ntchito kwake pakuchepetsa moto. Ngati APP iwonongeka kutentha kochepa, sizingakhale zothandiza kuteteza zinthu ku moto, chifukwa zingataye mphamvu zake zoletsa moto zisanafike kutentha kwakukulu. TGA imalola ofufuza kuzindikira kuyamba kwa kuwonongeka, zomwe zimawathandiza kukonza bwino mapangidwe azinthu zinazake.
Kuphatikiza apo, TGA imapereka chidziwitso pa zinthu zomwe zimawonongeka ndi APP. Kuwonongeka kwa kutentha kwa ammonium polyphosphate kungayambitse kutulutsidwa kwa mpweya wosiyanasiyana, kuphatikizapo ammonia ndi phosphoric acid. Pofufuza kutayika kwa unyinji pazigawo zosiyanasiyana za kutentha, ofufuza amatha kuzindikira madera enieni a kutentha komwe mpweyawu umatulutsidwa. Chidziwitsochi n'chofunikira kwambiri kuti timvetsetse momwe moto umachedwera, chifukwa kutulutsidwa kwa mpweya wosayaka kumatha kuchepetsa nthunzi zomwe zimayaka ndikuchepetsa kuyaka kwa zinthuzo.
Mbali ina yofunika kwambiri ya TGA ndi udindo wake popanga zinthu zopangidwa ndi APP. Mu ntchito zambiri, APP imaphatikizidwa ndi zinthu zina kuti iwonjezere magwiridwe antchito ake. TGA ingagwiritsidwe ntchito kuwunika momwe zinthu zopangidwa ndi APP zimagwirizanirana komanso kukhazikika kwa zinthu zopangidwa ndi APP pansi pa kutentha. Poyesa momwe zinthu zopangidwa ndi APP zimakhalira, ofufuza amatha kudziwa kuchuluka kwa APP ndi zinthu zina, kuonetsetsa kuti chinthu chomaliza chimasunga mphamvu zake zoletsa moto pamene chikupeza mawonekedwe oyenera a makina ndi kutentha.
Kuphatikiza apo, TGA ingathandize kuwongolera khalidwe la zinthu popanga ammonium polyphosphate. Mwa kukhazikitsa mawonekedwe a kutentha kwa APP, opanga amatha kuyang'anira kusinthasintha ndi mtundu wa zinthu zawo. Kupatuka pa khalidwe lokhazikika la kutentha kungasonyeze mavuto pakupanga, monga kusakwanira kwa zochita kapena kuipitsidwa, zomwe zingasokoneze kugwira ntchito kwa choletsa moto.
Pomaliza, kufunika kwa TGA pophunzira za ammonium polyphosphate kuli mu kuthekera kwake kupereka chidziwitso chofunikira chokhudza kukhazikika kwa kutentha, momwe zimagwirira ntchito powola, komanso kugwirizana ndi zinthu zina. Njira yowunikirayi sikuti imangowonjezera kumvetsetsa kwathu momwe APP imagwirira ntchito ngati choletsa moto komanso imagwira ntchito yofunika kwambiri pakupanga ndi kuwongolera khalidwe la zinthu zochokera ku APP. Pamene mafakitale akupitiliza kufunafuna njira zodzitetezera ku moto, nzeru zomwe zapezedwa kuchokera ku TGA zidzakhalabe zofunika kwambiri pakupititsa patsogolo kugwiritsa ntchito ammonium polyphosphate m'magawo osiyanasiyana.
Sichuan Taifeng New Flame Retardant Co., Ltdndi wopanga yemwe ali ndi zaka 22 zakuchitikira popanga zinthu zoletsa moto za ammonium polyphosphate, ndipo zinthu zathu zodzitamandira zimatumizidwa kunja kwambiri.
Woyimira wathu woletsa motoTF-241Ndi yochezeka komanso yotsika mtengo, imagwiritsidwa ntchito bwino mu PP, PE, ndi HEDP.
Ngati mukufuna kudziwa zambiri, chonde titumizireni uthenga.
Lumikizanani: Cherry He
Email: sales2@taifeng-fr.com
Nthawi yotumizira: Okutobala-29-2024
