Ese Cellulose Ether ikoreshwa iki?

1.Ibisobanuro ：

Cellulose ether ni uruganda rusanzwe rwa polymer, imiterere yimiti ni macromolecule ya polysaccharide ishingiye kuri anhydrous β-glucose, kandi hariho itsinda rimwe ryibanze rya hydroxyl hamwe nitsinda rya kabiri rya hydroxyl kuri buri mpeta. Binyuze mu guhindura imiti, urukurikirane rw'ibikomoka kuri selile birashobora kuboneka, kandi ether ya selile ni imwe muri zo. Cellulose ether ni polymer ivanze na ether yubatswe ikozwe muri selile, nka methyl selulose, Ethyl selulose, hydroxyethyl selulose, hydroxypropyl selulose, carboxymethyl selulose, nibindi. Mubisanzwe, irashobora kuboneka kubikorwa bya alkali selulose na monochloroalkane, Ethylene oxyde. , okiside ya propylene cyangwa aside monochloroacetic.

2. Imikorere n'ibiranga ：

(1) Ibiranga isura

Ether ya selulose muri rusange ni umweru cyangwa amata yera, nta mpumuro nziza, idafite uburozi, ifu ya fibrous fluid, byoroshye gukurura ubuhehere, kandi igashonga ikaboneka neza mu mazi.

(2) Gukora firime no gufatira hamwe

Etherifike ya selile ya selile igira uruhare runini mubiranga n'imikorere yayo, nko gukomera, ubushobozi bwo gukora firime, imbaraga zubusabane hamwe no kurwanya umunyu. Ether ya Cellulose ifite imbaraga zubukanishi, guhindagurika, kurwanya ubushyuhe no kurwanya ubukonje, kandi ifite aho ihurira neza na resin zitandukanye hamwe na plasitike, kandi irashobora gukoreshwa mugukora plastiki, firime, langi, ibifunga, latx hamwe nibikoresho byo gutwikira ibiyobyabwenge, nibindi.

(3) Gukemura

Methylcellulose irashobora gushonga mumazi akonje, ntigashonga mumazi ashyushye, kandi ikanashonga mumashanyarazi amwe; methyl hydroxyethyl selulose irashonga mumazi akonje, ntigashonga mumazi ashyushye hamwe na solge organic. Ariko, mugihe igisubizo cyamazi ya methylcellulose na methylhydroxyethylcellulose gishyushye, methylcellulose na methylhydroxyethylcellulose bizagwa. Methylcellulose igwa kuri 45-60 ° C, mugihe ubushyuhe bwimvura ya methyl hydroxyethyl selulose ivanze ya etherifile yiyongera kugera kuri 65-80 ° C. Iyo ubushyuhe bumaze kugabanuka, imvura igabanuka. Hydroxyethyl selulose na sodium carboxymethyl hydroxyethyl selulose irashobora gushonga mumazi mubushyuhe ubwo aribwo bwose kandi ntigishobora gushonga mumashanyarazi.

(4) kubyimba

Ether ya selulose ishonga mumazi muburyo bwa colloidal, kandi ububobere bwayo buterwa nurwego rwa polymerisation ya selile. Igisubizo kirimo macromolecules. Bitewe no kwangirika kwa macromolecules, imyitwarire yikemurwa ryibisubizo itandukanye niy'amazi ya Newtonian, ariko agaragaza imyitwarire ihinduka hamwe nimpinduka zingufu zogosha. Bitewe na macromolecular ya selulose ether, ubwiza bwumuti bwiyongera byihuse hamwe no kwiyongera kwinshi kandi bigabanuka vuba hamwe nubushyuhe bwiyongera.

Gusaba

(1) Inganda zikomoka kuri peteroli

Sodium carboxymethyl selulose ikoreshwa cyane mugukuramo amavuta, kandi ikoreshwa mugukora ibyondo kugirango yongere ububobere no kugabanya gutakaza amazi. Irashobora kurwanya umwanda utandukanye wumunyu kandi ikongera amavuta. Sodium carboxymethyl hydroxypropyl selulose (NaCMHPC) hamwe na sodium carboxymethyl hydroxyethyl selulose (NaCMHEC) nibikoresho byiza byo gucukura ibyondo nibikoresho byo gutegura amazi yuzuye, hamwe nigipimo cyinshi cyo kurwanya umunyu, imikorere myiza yo kongera ubukonje, kongera ubushyuhe, kurwanya ubushyuhe (160 ℃) umutungo. Birakwiriye gutegura amazi yo gucukura amazi meza, amazi yinyanja namazi yumunyu wuzuye. Irashobora guhindurwa mumazi yo gucukura yubucucike butandukanye (103-127g / cm3) munsi yuburemere bwa calcium chloride, kandi ifite ububobere buke hamwe no gutakaza amazi make, ubushobozi bwayo bwongera ububobere hamwe nubushobozi bwo kugabanya amazi nibyiza kuruta hydroxyethyl selulose , kandi ninyongera nziza yo kongera umusaruro wamavuta.

Sodium carboxymethyl selile ni inkomoko ya selile ikoreshwa cyane mugikorwa cyo gukuramo amavuta. Ikoreshwa mu gucukura amazi, sima ya sima, kuvunika amazi no kunoza amavuta, cyane cyane mugucukura amazi. Ifite cyane cyane uruhare rwo kugabanya gutakaza amazi no kongera ubukonje. Hydroxyethyl selulose (HEC) ikoreshwa nkigikorwa cyo kubyimba ibyondo no gutuza mugikorwa cyo gucukura, kurangiza neza na sima. Ugereranije na sodium carboxymethyl selulose na guar gum, hydroxyethyl selulose igira ingaruka nziza yo kubyimba, guhagarika umusenyi ukomeye, ubushobozi bwumunyu mwinshi, kurwanya ubushyuhe bwiza, kurwanya imvange ntoya, gutakaza amazi make, no kumena gel. Guhagarika, ibisigara bike nibindi biranga, byakoreshejwe cyane.

(2) Inganda zubaka no gusiga amarangi

Sodium carboxymethyl selulose irashobora gukoreshwa nka retarder, umukozi wo kubika amazi, kubyimbye no guhambira kubaka masoni no guhomeka imvange ya minisiteri, kandi irashobora gukoreshwa nkibikoresho bya pompa, minisiteri nubutaka buringaniye bwa gypsum na base ya sima Irakoreshwa nko gutatanya, amazi kugumana umukozi no kubyimba. Ububiko budasanzwe bwo guhingura no guhomeka bikozwe muri carboxymethyl selulose, bushobora kunoza imikorere, kubika amazi no guhangana na minisiteri, kandi bikarinda gucika nubusa mu rukuta. ingoma. Kubaka ibikoresho byo gushushanya hejuru Cao Mingqian nabandi bakoze ibikoresho byo gutunganya ibidukikije byubaka ibidukikije biva muri methyl selulose. Ibikorwa byo kubyaza umusaruro biroroshye kandi bifite isuku. Irashobora gukoreshwa hejuru yurukuta rwo hejuru hamwe namabuye ya tile hejuru, kandi irashobora no gukoreshwa mugushushanya hejuru yinkingi ninzibutso.

(3) Inganda zikora imiti ya buri munsi

Stabilisation ya viscosifier sodium carboxymethyl selulose igira uruhare rwo gutatanya no guhagarika ihagarikwa mubicuruzwa bya paste byibikoresho byifu byifu, kandi bigira uruhare mukubyimba, gutatanya no guhuza ibitsina mumavuta yo kwisiga cyangwa amavuta. Irashobora gukoreshwa nka stabilisateur na tackifier. Imisemburo ya Emulsion ikoreshwa nka emulisiferi, umubyimba hamwe na stabilisateur kumavuta na shampo.Sodium carboxymethyl hydroxypropyl selileirashobora gukoreshwa nka stabilisateur yumuti wamenyo. Ifite imiterere myiza ya thixotropique, ituma uburoso bwinyo bwiza muburyo bwiza, kubika igihe kirekire nta guhindagurika, hamwe nuburyohe bumwe kandi bworoshye. Sodium carboxymethyl hydroxypropyl selulose ifite umunyu urwanya umunyu hamwe na aside irwanya aside, kandi ingaruka zayo zirarenze kure iz'imikorere ya carboxymethyl selile. Irashobora gukoreshwa nkibyimbye mumashanyarazi hamwe na anti-stain. Kwiyongera kwimyororokere mugukora ibikoresho byo kwisiga, sodium carboxymethylcellulose ikoreshwa muburyo bwo gukwirakwiza umwanda wo gukaraba ifu, kubyimbye no gukwirakwiza ibikoresho byangiza.

(4) Ubuvuzi n'inganda

Mu nganda zimiti, hydroxypropyl carboxymethylcellulose (HPMC) irashobora gukoreshwa nkibiyobyabwenge, ikoreshwa cyane muri matrix yo mu kanwa yagenzuwe irekurwa kandi ikanategura irekurwa, nkibikoresho byo gusohora bigenga irekurwa ryibiyobyabwenge, nkibikoresho byo gutwikira gutinda kurekura formulaire, yaguye-irekura pellet, yagutse-irekura capsules. Ikoreshwa cyane ni methyl carboxymethyl selulose na Ethyl carboxymethyl selulose, nka MC, ikoreshwa kenshi mugukora ibinini na capsules, cyangwa kwambara ibinini bisize isukari. Imiti yo mu rwego rwo hejuru ya selile irashobora gukoreshwa mu nganda z’ibiribwa, kandi ni umubyimba mwiza, stabilisateur, ibicuruzwa biva mu mahanga, ibikoresho bigumana amazi hamwe n’imashini ifata ifuro mu biribwa bitandukanye. Methyl selulose na hydroxypropyl methyl selulose yamenyekanye nkibintu byangiza umubiri byangiza umubiri. Isuku ryinshi (hejuru ya 99.5%) carboxymethylcellulose (CMC) irashobora kongerwamo ibiryo, nkibikomoka ku mata na cream, ibiryo, jama, jelly, ibiryo byabitswe, sirupe yameza n'ibinyobwa. Carboxymethyl selulose ifite isuku irenga 90% irashobora gukoreshwa mubice bijyanye nibiribwa, nko gutwara no kubika imbuto nshya. Ubu bwoko bwa pulasitike bufunze bufite ibyiza byo kubika neza, kwanduza gake, nta byangiritse, no kubyaza umusaruro imashini.

(5) Ibikoresho byiza n'amashanyarazi

Kwiyongera kwa electrolyte stabilisateur ifite isuku nyinshi ya selile ya selile, irwanya aside nziza kandi irwanya umunyu, cyane cyane ibyuma bike hamwe nibyuma biremereye, bityo colloid irahagaze neza, ikwiranye na bateri ya alkaline, bateri zinc-manganese Electrolyte yogukomeza stabilisateur. Ethers nyinshi ya selile yerekana ubushyuhe bwa termotropique. Hydroxypropyl selulose acetate ikora kristaliste ya cholesteric ya chromotropique iri munsi ya 164 ° C.