Ngokubanzi, kwi-synthesis ye-hydroxypropyl methylcelceluplose, i-cotton ye-cottose inyangwa ngesisombululo se-Alkali nge-35 ° i-clyulid, ukuze i-cleevied ihluthwe, kwaye i-Cletulose ye-Alkali inesidanga sePolymer siphakathi koluhlu olufunekayo. Beka i-alkali fiber kwi-ethertey, yongeza i-proplene oxide kunye ne-methyl chloride, kwaye uqinisekisile kwi-50-80 ℃ iiyure ezi-5 kwi-MPA ephezulu malunga ne-1.8 MPA. Emva koko yongeza isixa esifanelekileyo se-hydrochloric acid kunye ne-oxcalic acid ukuya kumanzi ashushu kwi-90 ° C ukuhlamba izinto zokwandisa ivolumu. Ukupheliswa kwenkululeko kunye ne-centrifuge. Hlamba kude ungathathi hlangothi, xa umxholo wamanzi kwi-60%, womisa ngokuhamba komoya oshushu nge-130 ° C ukuya ngaphantsi kwe-5%.
I-Alkalization: Ikotoni ehlaziyiweyo emva kokuvula yongezwa kwi-intert isolven, kwaye ivulwe nge-Alkali kunye ne-Alkali kunye ne-Interstal Colenes, ephucukileyo yokungena kwi-arhente yokuphendula. I-alkali esetyenziswa kwi-alkalization yi-hydroxide yensimbi okanye isiseko sezinto eziphilayo. Isixa se-alkali esongeziweyo (ngobunzima, esingezantsi) sisi-0.1-0.6 amaxesha ekotoni ecocekileyo, kunye nenani lamanzi athambileyo yi-cotton yomqhaphu; I-Inert ye-Instevent ngumxube wotywala kunye ne-hydrocarbon, kunye nenani le-intert ye-Inict yongezwa yikotoni ecocekileyo. Amaxesha angama-7 ukuya kweli-15: I-Inert ye-InEtven inakho ukuba yi-aton ye-carbon ene-Atoni (efana notywala, i-propanol), i-acetone. Ingakwazi ukuba nee-hydrocarbons ze-hydrocarbons kunye neebhulukhwe ze-hydrocarbons; amaqondo obushushu kufuneka alawulwe ngaphakathi kwe-0-35 ° C ngexesha lokuphulukana; Ixesha le-alkali imalunga ne-1hr. Uhlengahlengiso lobushushu kunye nexesha lungagqitywa ngokweemfuno zezinto ezibonakalayo kunye nemveliso.
Isiqinisekiso: Emva konyango lwe-alkalition, phantsi kweemeko ze-vacuum, i-ethe therhemu yenziwa ngokongeza iarhente eyaziwayo, kwaye iarhente ye-estide i-proplene oxide. Ukwenzela ukunciphisa ukusetyenziswa kwearhente yokukhuthaza, iarhente ye-ethermentisayo yongezwa kabini ngexesha lenkqubo yokuthengiswa.
Ixesha leposi: NgoFebwe-20 ukuya ku-525