Polyols: Kayan Rarraba Mai Amfani Da Yawa Don Masana'antu da Aikace-aikacen Masu Amfani
Manyan Fagen Aikace-aikace
A masana'antar sinadarai, polyols sune manyan kayan albarkatun ƙasa don samar da kayan nauyi mai yawa kamar polyesters, polyethers, da polyurethanes. Misali, ana amfani da ethylene glycol don samar da polyethylene terephthalate (PET), wanda ake amfani da shi sosai a cikin kwalaben filastik da zare. Ana amfani da Polyethylene glycol (PEG) don samar da nau'ikan surfactants da man shafawa daban-daban. Bugu da ƙari, polyols na iya aiki azaman mai narkewa don narkar da nau'ikan mahadi na halitta, suna haɓaka ingancin amsawa.
A masana'antar harhada magunguna, ana amfani da polyols sosai a matsayin abubuwan narkewa, masu amfani da filastik, da kuma humectants. Misali, ana amfani da propylene glycol da glycerol a fannin shirya allurai, ruwan baki, da kuma man shafawa don inganta narkewar magunguna da kwanciyar hankali. Bugu da ƙari, ana iya amfani da polyols don samar da magungunan da aka sarrafa, waɗanda ke daidaita yawan sakin magunguna.
A masana'antar abinci, ana amfani da polyols a matsayin kayan zaki, abubuwan humectants, da kuma abubuwan da ke fitar da sinadarai masu guba. Misali, ana iya amfani da glycerol da polyethylene glycol wajen samar da kayan zaki, kayan gasa, da abubuwan sha, wanda hakan ke samar da zaki da kuma riƙe danshi. Bugu da ƙari, ana iya amfani da polyols don daidaita yanayin abinci da kuma jin daɗin bakinsa, wanda hakan ke tsawaita tsawon lokacin da zai ɗauka.
A masana'antar kayan kwalliya da kula da fata, ana amfani da polyols sosai a matsayin masu humectants da emulsifiers. Misali, propylene glycol da glycerol na iya sha danshi, suna kiyaye fata da gashi cikin ruwa. Bugu da ƙari, ana iya amfani da polyols wajen samar da man shafawa na rana, shamfu, da kuma kwandishan, wanda ke ba da tasirin danshi da man shafawa.
A masana'antar robobi, ana amfani da polyols a matsayin masu yin robobi don haɓaka sassauci da iya sarrafa robobi. Misali, ana iya amfani da glycerol da polyethylene glycol a matsayin masu yin robobi don polyvinyl chloride (PVC), wanda ke inganta sassauci da dorewarsa. Bugu da ƙari, ana iya amfani da polyols don samar da robobi masu lalacewa, wanda ke rage tasirin muhalli.
A masana'antar shafa da tawada, ana amfani da polyols a matsayin abubuwan narkewa da kuma masu fitar da sinadarai masu narkewa. Suna iya narkar da nau'ikan resins da pigments iri-iri, suna samar da kyawawan halaye na samar da fim. Misali, ana iya amfani da polyethylene glycol don samar da shafa da tawada masu amfani da ruwa, wanda ke ba da mafita masu kyau ga muhalli da kuma inganci.
Bayani dalla-dalla
| Sunan Samfuri | Polyester Polyols | |||||||||
| Bayyanar | Ruwa mai kauri ko mai laushi mara launi zuwa rawaya mai haske | |||||||||
| Nauyin kwayoyin halitta | 500-5000 g/mol | |||||||||
| Tafasasshen Wurin | >200 | |||||||||
| Tsarkaka | 98%, 99.5% | |||||||||
| Yawan yawa | 1.10-1.15 | |||||||||
| Lambar HS | 3907910000 | |||||||||
| Aikace-aikace | Rufin polyurethane, tawada; tafin takalma, hatimi, tayoyi | |||||||||
Takardar Kula da Inganci
| Sunan Samfuri | Polyester Polyols | ||||||
| KAYA | Daidaitacce | Sakamako | |||||
| Chroma (APHA) | ≤30 | 11 | |||||
| Danko a 25℃ (mPas) | 1100-1500 | 1296 | |||||
| Ruwan da ke cikinsa (%) | ≤0.08 | 0.017 | |||||
| Darajar Hydroxyl (mgKOH/g) | 32.5-35.5 | 34.2 | |||||
| Darajar Acid (meKOH/s) | ≤0.08 | 0.029 | |||||
| Darajar pH | 5.0-7.5 | 6.7 | |||||
| K+(mgkg) | ≤5 | 1.0 | |||||
| Kammalawa | Wanda ya cancanta | ||||||
a takaice
A taƙaice, polyols, a matsayin muhimman kayan albarkatun sinadarai na halitta, suna taka muhimmiyar rawa a masana'antu da dama. Ba wai kawai suna inganta aikin samfura da inganci ba, har ma suna tallafawa ci gaban masana'antar zamani. Tare da ci gaba da ci gaban fasaha, damar amfani da polyols zai fi faɗi.