Cellulose bụ polleskaccharide nke na-etolite ụdị mmiri na-agbanye mmiri. Pollulose na-eji polmers mmiri. Histoymisimesi ike ya dị ogologo oge, ihe karịrị afọ iri atọ, enwere ọtụtụ ụdị. A ka na-eji ha na-eme ihe fọrọ nke nta ka ọ bụrụ ihe osise niile ma bụrụkwa isi nke ndị dị egwu. Trudiguc trulen dị irè na sistemụ osisi n'ihi na ha na-eme ka mmiri ahụ sie onwe ha. Na ụlọ ọrụ agba, nke kachasị eji cellulose truners bụ:Methyl Cellulose (Mc), hydroxyethythythythyth Cellulose (HEC), ethylythythythythythythythythyth Cellulose (ehec), hydroxypropyl cellulose (HPC),hydroxypylthylthth cellulose (hpmc)na hydrophophly gbanwetụrụ hydroxyethyth Cellulose (hMhec). HIC bụ poluble-soluble mmiri na-ejikarị ya na ahịhịa nke Matt na ọkara nke goss ụkpụrụ rotatex na-ese. Ndị dị egwu dị na akara ngosi dị iche iche na Ternenners na Cellose a nwere ndakọrịta agba mara mma na nkwụsi ike.
Ọkwa, mgbochi sprash, na-akpụ akpụ na ihe na-eme ihe nkiri nke ihe nkiri a na-adabere na oke molecular nkeHEC. Hec na ndị ọzọ na-abụghị polymers na-eme ka ndị na-eme ka ha bụrụ nke mkpuchi. Enwere ike iji ahịhịa cellulose nwere ike iji ya ma ọ bụ jikọtara ya na ndị ọzọ dị egwu iji nweta ntuli aka pụrụ iche. Eutress cell nwere ike ịnwe oke molecular dị iche iche na akara ngosi dị iche iche, nke sitere na Ngwọta molecular nke dị na Visity dị arọ na-enweghị atụ nke Visity dị elu nke 100 000 MP s. A na-ejikarị akara ugo dị ala dị ka ihe nchebe na-echebe na mbubreyo emultization polymerization polymerization polymerization polymerization polymerization polymerization polynization polymerization polymeriz, na akara ugosi ike (viscosity 4 800-50 000 dị ka ndị dị omimi. Usoro nke ụdị Tronener a bụ n'ihi hydration dị elu nke agbụ hydrogen na ntinye n'etiti ụdọ molecular.
Oke cellulose bụ nnukwu polymer na-ebu oke mmiri nke na-efe efe karịsịa site na abata n'etiti abigara ụdọ. N'ihi viscosity dị elu na obere shiu ọhụrụ, ihe onwunwe dị larịị dara ogbenye, ọ na-emetụtakwa ihe nkiri nke ihe nkiri. Na ọkwa dị elu nke, viscosity dị ala, na-agbaze na-eguzogide ihe nkiri mkpuchi ahụ adịghị mma, yana njupụta nke ihe nkiri a adịghị mma. Njirimara nke HEC, dị ka ahịhịa na-eguzogide, na-acha na florter na roller Sperter, na-enwe njikọ na nhọrọ nke oke. Ọzọkwa Ngwongwo ya na-erute dị ka ibu na-eguzogide na Sag na-emetụta ndị na-emekarị.
Hydrophost na-agbanwe agbanwe (hmphec) bụ sellulose nke nwere ngbanwe hydrophobic na ụfọdụ ụdị a na-agbaze (ọtụtụ ndị otu Alkyl dị ogologo nke ihe owuwu ahụ). Ibe mkpuchi a nwere viscosity dị elu na ọnụego Shear na ya mere ka ọ dị mma. Ndị dị ka Natrosol Plus Grand 330, 331, Cellosize SG-100, Bermocoll EHm-100. Mmetụta ya na-emekarị dị ka nke cellulose egwe na-ehurners nwere ọtụtụ ihe dị ukwuu. Ọ na-eme ka viscosity na ịka mma nke ici, ma belata esemokwu dị elu. Iji maa atụ, elu elu nke hc bụ ihe dị ka 67 mn, na elu esemokwu nke hmhec bụ 55 ~ 65 mn / m.
HMHEC nwere parkability nke mara mma, Njirimara Igwu, ezigbo gloss na achịcha ezì. A na-eji ya ebe niile ma na-enweghị mmetụta na-adịghị mma na ihe nkiri nke ezigbo urughuru ibu. Ezigbo ihe nkiri na-arụ ọrụ na arụmọrụ mgbochi. Nke a na-ejikọkarị ike na-arụ ọrụ na vinyl acetate compolymer na nwere akụrụngwa yiri ndị ọzọ sonterners, mana ya na usoro dị mfe.
Oge post: Apr-25-2024