01. Okwu mmeghe nke cellose
Cellulose bụ polimomecular polysimolecular dere mejupụtara glucose. Na-egbochi mmiri na mmiri na-egbochi ihe ndozi. Ọ bụ ihe bụ isi nke mgbidi osisi, ọ bụkwa nke a na-ekesa na polysisantcharide bara ụba na okike.
Cellulose bụ ihe kachasị ọhụrụ na-eme ka ọhụụ n'ụwa, ọ bụkwa polymen eke nwere nnukwu izu oke. O nwere uru dị na imeghari ọhụrụ, kpamkpam biodegradeble, na ezigbo biocompatalitibility.
02. Ihe kpatara na-agbanwe
Mkpụrụ osisi cellulose nwere ọnụ ọgụgụ dị iche iche nke otu -sh. N'ihi nsonaazụ hydrogen, ike dị n'etiti Macromolecules dịtụ buru ibu, nke ga-edugakwa nnukwu ala na-agbaze okirikiri oblishpy △ h; N'aka nke ọzọ, enwere mgbaaka na cellulose macromolecules. Dị ka usoro, na-emesi ike nke yinye ụmụ nwanyị ka ukwuu, nke ga-eduga na obere ntinye ala na-agbanwe Δs. Ihe abụọ a na-eme ka ọnọdụ okpomọkụ nke molla gellulose (= △ h / △ s) ga-adị elu, yana oke okpomọkụ nke cellulose dị ala. Ya mere, mgbe cellulose na-ewe iwe ụfọdụ okpomọkụ, eriri ga-apụta ihe phenomenon na cellulose ihe na-enweghị ike iji mkpụrụ osisi cellulose enweghị ike ịkpụzi agbaze ma mezie ya.
03. Mkpa usoro cellulose
Site na ntachi obi nke ihe eji eme ihe na-arịwanye elu nsogbu gburugburu ebe obibi na-akpata kemịkalụ, mmepe na itinye ihe ọkụ na-ekpo ọkụ bụ ị toa ntị na. Cellulose bụ nke kachasị ọhụrụ na-agbanwe agbanwe na okike. Ọ nwere ihe kachasị dị mma dịka ezigbo hygroscopity, ọgwụ ike ikuku, ike ikuku, siri ike, na-eyisi ike, nhazi akwa dị mfe, na biodegrad. O nwere njiri mara na-enweghị atụ na eriri kemịkal. .
Otuto cellulose nwere otutu otutu hydroxy, nke dị mfe ijikọ indomolular na nke na-enweghị atụ, na -ebelata okpomọkụ na-enweghị agbaze. Agbanyeghị, cellulose nwere ezigbo mmeghachi omume, enwere ike imebi ngwa ngwa ya site na ngbanwe mmiri hydrogen ma ọ bụ mmeghachi ahụ, nke nwere ike belata isi ihe na-egbu egbu. Dị ka ngwaahịa ndị na-emepụta ụlọ ọrụ dị iche iche, a na-ejikarị ya eme ihe n'ọtụtụ akwụkwọ, Mpaghara Kewaa, plastics, ụtaba na mkpuchi.
04. Mgbanwe Celligul
Mkpụrụ osisi ether bụ ụdị mkpụrụ osisi cellulose nwetara site na mgbanwe ọkwa nke celluse. A na-ejikarị ya mee ihe n'ihi oke, nkwusioru, mgbachi, ihe nkiri, na-echebe ihe na akụrụngwa. Ejiri nri, ọgwụ, akwụkwọ, agba, ihe eji ewu ụlọ, wdg.
Etetherification nke cellulose bụ usoro nke ihe mepụtara site na mmeghachi omume nke otu hydroxy na eriri akwara mkpụrụ osisi alkolating n'okpuru ọnọdụ alkaline. Oriri nke hydroxy na - ebelata ọnụ ọgụgụ nke agbụ hydrogecular iji belata ike nke etiti, na - eme ka ọrụ nhazi nke cellulose mee ihe na - agbaze.
Ihe atụ nke nsonaazụ nke mgbanwe ikuku na ọrụ ndị ọzọ nke celluse:
Iji owu nụchara anụcha dị ka ihe ndị dị mkpa, ndị ọrụ nyocha ahụ jikwa otu mmeghachi omume na-enwe celloxyylypylylylylylyyl cellowyl cellowyl cellowyl cellowyl cellowyl na nguzogide mmeghachi omume na nnupụ nke alkalization na nke eth. N'iji otu ihe analelerification, nke emepụtara celdypypyrlyptide nwere ezigbo nguzogide nnu, na-eguzogide na solible. Site na igbanwe ihe di iche iche nke propylene na chloroacetic acid, ngwaahịa nwere caryMylythylylylylylylylylylylylylylylylylylyl na ihe hydrocypyl nwere ike kwadebere. Nsonaazụ nnwale ahụ na-egosi na cardroxyypypypypyl cellonose na-emepụta site na usoro otu dị mkpirikpi, ngwaahịa dị ala na-agbanwe agbanwe na nnu na nnu dị mma na-eguzogide.
05. Atụmanya nke mgbanwe ikuku
Cellulose bụ kemịkal dị mkpa na kemịkalụ nke bara ụba na akụrụngwa, akwụkwọ ndụ akwụkwọ ndụ na gburugburu ebe obibi, na gburugburu ya. Ngbanwe nke mkpụrụ ndụ cellulose nwere arụmọrụ dị mma, ọtụtụ na-eji ma dị mma ma jiri ya rụọ ọrụ, ma jiri mkpa akụ na ụba nke mba dị ukwuu. Na mkpa nke mmepe mmepe, na-aga n'ihu na teknụzụ na-aga n'ihu na usoro nke azụmahịa na ọdịniihu, ọ ga-abụrịrị na ha na-arụ ọrụ ma ghọta ọtụtụ ngwa . Baa uru
Oge post: Feb-20-2023