Urugero rwa eteri ya selulosi

Eteri ya selulosiUrugero ni igikoresho cya polymeri gikozwe muri selulosi gifite imiterere ya eteri. Buri mpande ya glucose iri muri macromolecule ya selulosi irimo amatsinda atatu ya hydroxyl, itsinda rya mbere rya hydroxyl kuri atome ya karuboni ya gatandatu, n'itsinda rya kabiri rya hydroxyl kuri atome ya karuboni ya kabiri n'iya gatatu. Hydrogeni iri mu itsinda rya hydroxyl isimburwa n'itsinda rya hydrocarboni kugira ngo ikore selulosi. Ni umusaruro wo gusimbuza hydroxyl hidrojeni n'itsinda rya hydrocarboni muri polymer ya selulosi. Cellulose ni igikoresho cya polymeri cya polyhydroxy kidashonga cyangwa ngo gishonge. Cellulose ishobora gushonga mu mazi, igakuraho alkali na organic solvent nyuma yo gushonga, kandi ifite imiterere ya thermoplastic.

Cellulose ether ni ijambo rusange ry'uruhererekane rw'ibicuruzwa bikomoka ku gukora kwa cellulose ya alkali n'ikintu gitanga ether mu bihe bimwe na bimwe. Alkali cellulose isimburwa n'ibintu bitandukanye bitanga ether kugira ngo haboneke ethers zitandukanye za cellulose.

Dukurikije imiterere ya ionization y'ibintu bisimbura, urugero rwa ether za cellulose rushobora kugabanywamo ionic (nk'iselulosi ya carboxymethyl) n'idafite ionic (nk'iselulosi ya methyl) ibyiciro bibiri.

Dukurikije ubwoko bw'ikintu gisimbura,eteri za seluloseUrugero rushobora kugabanywamo eteri imwe (nka selulosi ya methyl) na eteri ivanze (nka selulosi ya hydroxypropyl methyl). Dukurikije uburyo ishonga, ishobora kugabanywamo ibishongesha mu mazi (nka selulosi ya hydroxyethyl) n'ibishongesha mu by'umwimerere (nka selulosi ya ethyl). Mota yumye ivanze ahanini ikoresha selulosi ishongesha mu mazi, ishobora kugabanywamo ubwoko bushongesha vuba n'ubwoko bushongesha nyuma yo gutunganya ubuso.

Ibivange bigira uruhare runini mu kunoza imiterere ya sima ivanze yumye kandi bingana na 40% by'igiciro cy'ibikoresho bya sima ivanze yumye. Igice kinini cy'ibivange ku isoko ry'imbere mu gihugu gitangwa n'inganda z'abanyamahanga, kandi ingano y'ibicuruzwa itangwa n'ababicuruza. Kubera iyo mpamvu, ikiguzi cy'ibicuruzwa bya sima ivanze yumye kiracyari hejuru, kandi biragoye gukurura sima isanzwe y'amabuye n'isafuriya yo gusiga ahantu henshi kandi hanini. Ibicuruzwa byo ku isoko rinini bigenzurwa n'amasosiyete y'amahanga, abakora sima ivanze yumye babona inyungu nke, kandi ku giciro gito; Gukoresha sima ivanze nta bushakashatsi bunoze kandi bugamije, bakurikiza mu buryo buhumyi imiti yo mu mahanga.

Uburyo bwo kubika amazi ni bwo buryo bw'ingenzi bwo kunoza imikorere y'imyanda yumye kandi ni kimwe mu bintu by'ingenzi bivangwa mu kugena igiciro cy'ibikoresho by'imyanda yumye. Akamaro k'ingenzi ka eteri ya selulose ni ukubika amazi.

Uburyo bwo gukora kwa eteri ya selulosi muri mortier ni ubu bukurikira:

(1) mortilage muri eteri ya selulosi ishongeshejwe mu mazi, kubera ko ubuso bufite uruhare runini mu kwemeza ko ibikoresho bya gelled bikwirakwira neza muri sisitemu, na eteri ya selulosi nk'ubwoko bwa colloid irinda, "paki" uduce duto tw'ibice, no ku buso bwayo bwo hanze kugira ngo habeho urwego rwa filime yo kwisiga, sisitemu yo kwisiga ihamye kurushaho, kandi inanoza slurry mu kuvanga sludge no kubaka slip ishobora no kuba.

(2)Eteri ya selulosiumuti bitewe n'imiterere yawo ya molekile, ku buryo amazi ari muri mortil atoroshye gutakaza, kandi akarekurwa buhoro buhoro mu gihe kirekire, bigatuma mortil igumana amazi neza kandi igakora neza.