HPMC F50 Hydroxypropyl Methyl Cellulose (HPMC) | |
Nazarin Jiki | |
Bayyanar | Fari zuwa dan kadan-kashe-fari fibrous ko granular foda. |
Identification A zuwa E | Daidaita |
Magani bayyanar | Daidaita |
Methoxy | 27.0-30.0% |
Hydroxypropoxy | 4.0-7.5% |
Asarar bushewa | 5.0% Max |
Ragowa akan kunnawa | 1.5% Max |
pH | 5.0-8.0 |
Bayyanar danko | 40-60cps |
Girman barbashi | Min.98% sun wuce ta hanyar raga 100 |
Karfe masu nauyi | |
Karfe mai nauyi | ≤10ppm |
Arsenic | ≤3pm |
Jagoranci | ≤3pm |
Mercury | ≤1pm |
Cadmium | ≤1pm |
Micro bacteria | |
Jimlar adadin faranti | ≤1000cfu/g |
Yisti da Mold | ≤100cfu/g |
Coli form | Babu/g |
Salmonella | Babu/g |
EipponCell HPMC F 50 wani muhimmin tarwatsawa ne da ake amfani dashi a masana'antar polyvinyl chloride (PVC).A lokacin dakatarwar polymerization na vinyl chloride, yana yin ayyuka da yawa.Da fari dai, yana rage tashin hankali tsakanin vinyl chloride monomer (VCM) da ruwa, yana sauƙaƙa daidaituwa da barga tarwatsa VCM a cikin matsakaiciyar ruwa.Abu na biyu, yana hana haɗuwa da ɗigon VCM a farkon matakin polymerization.A ƙarshe, yana hana haɗin kai tsakanin ɓangarorin polymer a cikin tsaka-tsaki da na ƙarshe na tsari.A cikin tsarin dakatarwar polymerization, EipponCell HPMC F 50 yana taka rawar dual na tarwatsa VCM da tabbatar da kwanciyar hankali.
Polyvinyl chloride (PVC) guduro tare da ƙananan digiri na polymerization yawanci yana nufin PVC resin tare da digiri na polymerization a ƙasa 800. Wannan nau'in guduro, saboda ƙananan nauyin kwayoyin halitta, babban nau'i mai yawa, mai narkewa mai kyau, gajeren lokaci na filastik, da sauƙi. na aiki, ya sami aikace-aikace masu yawa a cikin masana'anta, kayan aikin bututun allura, gyare-gyaren busa, da samar da resin da aka gyara (kamar chlorinated polyvinyl chloride ta hanyar zurfin chlorination na guduro na vinyl chloride), da sauransu.Duk da haka, resin PVC tare da ƙananan digiri na polymerization yana nuna ƙananan porosity da ƙananan ƙwayoyin guduro.The barbashi fim kafa da graft copolymerization na dispersants da vinyl chloride o ƙarin tabbatar da zama in mun gwada da lokacin farin ciki, wanda zai iya tasiri guduro ta aiki yi da kuma m gyara.
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