Cellulose ether bụ klas nke polymers soluble mmiri nke sitere na cellulose, nke bụ isi ihe nhazi nke mgbidi cell osisi. Cellulose ether nwere ọtụtụ ihe pụrụ iche, gụnyere njigide mmiri dị elu, ịgbakọ, njide, na ike imepụta ihe nkiri. Ngwongwo ndị a na-eme ka cellulose ether bụrụ ihe dị mkpa n'ọtụtụ ụlọ ọrụ mmepụta ihe, ọgwụ na ngwaahịa nlekọta onwe onye.

Otu n'ime ihe ndị bụ isi nke cellulose ether bụ viscosity ya, nke na-ezo aka na nguzogide nke mmiri na-asọba. Viscosity bụ ihe dị mkpa nke na-emetụta arụmọrụ na ntinye nke cellulose ether na ngwaahịa dị iche iche. N'isiokwu a, anyị ga-atụle viscosity nke cellulose ether, gụnyere nha ya, ihe ndị na-emetụta ya, na ntinye ya na ụlọ ọrụ dị iche iche.

Ntụle nke viscosity nke cellulose ether

A na-atụkarị viscosity nke cellulose ether site na iji viscometer, nke bụ ngwá ọrụ na-atụle ọnụego mmiri n'okpuru mmetụta nke ike ndọda ma ọ bụ ike etinyere. Enwere ụdị viscometer dị iche iche, gụnyere rotational, capillary, na oscillatory viscometers, nke ọ bụla nwere uru na oke nke ya.

Viscometers ntụgharị bụ ihe a na-ejikarị eme ihe maka ịlele viscosity nke cellulose ether. Ngwa ndị a na-atụ ike nke achọrọ iji tụgharịa spindle ma ọ bụ rotor emikpu n'ime mmiri na ọsọ ọsọ mgbe niile. A na-agbakọ viscosity na-adabere na njikọ dị n'etiti torque na ọsọ ntụgharị.

Capillary viscometers, n'aka nke ọzọ, na-atụ oge achọrọ maka oke mmiri a kapịrị ọnụ ka ọ na-asọba na tube capillary dị warara n'okpuru mmetụta nke ike ndọda ma ọ bụ gradient. A na-agbakọ viscosity ahụ dabere n'iwu Poiseuille, nke na-ejikọta ọnụego eruba na viscosity, dayameta tube, na gradient nrụgide.

A na-eji viscometers oscillatory, nke na-atụle nrụrụ na mgbake nke mmiri n'okpuru nrụgide sinusoidal shear, iji tụọ viscosity dị mgbagwoju anya nke cellulose ether, nke bụ viscosity na-adabere ugboro ugboro.

Ihe na-emetụta viscosity nke Cellulose Ether

A na-emetụta viscosity nke cellulose ether site n'ọtụtụ ihe, gụnyere ịdị arọ molekụla ya, ogo nke nnọchi anya, itinye uche, okpomọkụ, na ọnụ ọgụgụ isi.

Ibu arọ molecular: Viscosity nke cellulose ether na-abawanye site na ịdị arọ molekụla na-abawanye, ebe ọ bụ na polymer arọ molecular dị elu nwere ogologo agbụ nke na-ejikọta ibe ya, na-eduga n'ịbawanye iguzogide mmiri.

Ọkwa nnọchi: Ogo nke nnọchi (DS) nke cellulose ether, nke na-ezo aka ọnụ ọgụgụ nke hydroxyl nọchiri anya otu glucose n'ime agbụ cellulose, na-emetụtakwa viscosity ya. Ka DS na-abawanye, viscosity nke cellulose ether na-abawanye n'ihi ụbara njikọ nke yinye na mmekọrịta intermolecular.

Ntinye uche: Viscosity nke cellulose ether na-abawanye site na ntinye uche na-abawanye ụba, ebe ọ bụ na mkpokọta dị elu na-eduga n'ịba ụba n'agbụ na njikọ intermolecular.

Okpomọkụ: Viscosity nke cellulose ether na-ebelata na okpomọkụ na-abawanye, n'ihi na okpomọkụ dị elu na-eduga n'ịbawanye mmegharị molekụla ma belata mmekọrịta intermolecular.

Ọnụ ọgụgụ shear: viscosity nke cellulose ether na-adaberekwa na ọnụ ọgụgụ shear a na-etinye n'ọrụ, ebe ọ bụ na ọnụ ọgụgụ dị elu nke shear na-eduga n'ịgbaba n'agbụ agbụ na ibelata iguzogide eruba.

Ngwa nke cellulose ether na ụlọ ọrụ dị iche iche

A na-ejikarị cellulose ether eme ihe na ụlọ ọrụ dị iche iche n'ihi ihe ndị pụrụ iche ya, gụnyere viscosity ya. Ụfọdụ n'ime isi ngwa nke cellulose ether na ụlọ ọrụ dị iche iche na-atụle n'okpuru.

Ihe owuwu: A na-eji cellulose ether eme ihe dị ka ihe na-esi ísì, onye na-ejigide mmiri, na ihe nkedo na ngwaahịa ihe owuwu dị ka ciment, ngwa agha, na gypsum. Ọ na-eme ka arụ ọrụ, nkwụsi ike, na nchikota ngwaahịa ndị a dịkwuo mma, na-eduga n'ịrụ ọrụ na ịdịte aka.

Ọgwụ: A na-eji cellulose ether mee ihe dị ka ihe na-enye aka na nhazi ọgwụ dịka mbadamba nkume, capsules, na ude. Ọ na-eme ka ike ịgbasa, mkpakọ, na viscosity nke usoro, na-eduga na nnyefe ọgwụ na nkwụsi ike ka mma.