Hadda dad badan ma yaqaaniin wax badan oo ku saabsan istaarijka hydroxypropyl ether. Waxay u maleynayaan in farqi yar uu u dhaxeeyo istaarijka hydroxypropyl ether iyo istaarijka caadiga ah, laakiin ma aha. Qadarka istaarijka hydroxypropyl ether ee loo isticmaalo alaabada hoobiyaha waa mid aad u yar, tirada dheeraadka ah ee polar-kana waxay gaari kartaa saameyn tayo wanaagsan leh.
Ether-ka Hydroxypropyl istaarijka (HPS) waa budo cad oo khafiif ah oo laga helo wax ka beddelka dhirta dabiiciga ah, si aad ah loo qalajiyey, ka dibna lagu buufiyey, iyada oo aan lahayn balaastigeeyeyaal. Aad bay uga duwan tahay istaarijka caadiga ah ama istaarijka wax laga beddelay.
Iyo hydroxypropyl methyl cellulose, oo sidoo kale loo yaqaan hypromellose, hydroxypropyl methyl red vitamin ether, waa in loo isticmaalo cellulose cudbi ah oo aad u saafi ah sida walxo cayriin ah, oo lagu daweeyo lye heerkul ah 35-40 ° C nus saac. Tuuji, burburi cellulose-ka, oo si habboon u gabow 35 ° C, si heerka celceliska polymerization-ka ee fiber-ka alkali ee la helay uu u dhexeeyo xadka loo baahan yahay. Faybarka alkali geli digsiga etherification-ka, ku dar propylene oxide iyo methyl chloride si isku xigxig ah, oo ku etheree 50-80 ° C muddo 5 saacadood ah, cadaadiska ugu badanna waa qiyaastii 1.8MPa. Kadib ku dar xaddi ku habboon oo ah hydrochloric acid iyo oxalic acid biyaha kulul ee 90 ° C si aad u dhaqdo walxaha si loo ballaariyo mugga, ka dibna ku fuuq-bax centrifuge, ugu dambayntiina si isdaba joog ah ugu dhaq si dhexdhexaad ah. Si ballaaran ayaa loogu isticmaalaa dhismaha, warshadaha kiimikada, rinjiga, daawada, warshadaha militariga iyo meelaha kale, siday u kala horreeyaan sida wakiilka sameynta filimada, xidhaha, kala firdhiyaha, xasiliyaha, dhumuc-dhejinta, iwm.
Ether-ka istaarijka Hydroxypropyl waxaa loo isticmaali karaa isku-darka alaabada ku salaysan sibidhka, alaabada ku salaysan gypsum-ka iyo alaabada kalsiyum-ka liinta. Waxay leedahay iswaafajin wanaagsan oo lala yeesho walxaha kale ee dhismaha. Iyadoo lala isticmaalayo hydroxypropyl methylcellulose ether HPMC, waxay yareyn kartaa qiyaasta hydroxypropyl methylcellulose (guud ahaan marka lagu daro 0.05% HPS waxay yareyn kartaa qiyaasta HPMC qiyaastii 20%-30%)), waxayna ciyaari kartaa saameyn dhumuc leh, si kor loogu qaado qaab-dhismeedka gudaha, iyadoo leh iska caabin dildilaac oo wanaagsan iyo shaqeyn wanaagsan.
Waqtiga boostada: Abriil-24-2023