Ngwongwo Rheological nke Ngwọta Methyl cellulose

Ihe ngwọta Methyl cellulose (MC) na-egosipụta njirimara rheological pụrụ iche nke dabere na ihe ndị dị ka itinye uche, ịdị arọ molecular, okpomọkụ, na ọnụ ọgụgụ isi. Nke a bụ ụfọdụ njirimara rheological nke ngwọta methyl cellulose:

1. Viscosity: Ihe ngwọta methyl cellulose na-egosipụtakarị viscosity dị elu, karịsịa na ọkwa dị elu na obere okpomọkụ. Viscosity nke ngwọta MC nwere ike ịdịgasị iche n'ọtụtụ dịgasị iche iche, site na ngwọta dị ala dị ka mmiri na gels viscous dị elu nke yiri ihe siri ike.
2. Pseudoplasticity: Ihe ngwọta methyl cellulose na-egosipụta àgwà pseudoplastic, nke pụtara na viscosity ha na-ebelata site na ọnụ ọgụgụ shear na-abawanye. Mgbe a na-enwe nrụgide siri ike, ụdọ polymer ogologo dị na ngwọta na-adaba n'akụkụ ntụziaka nke mmiri na-asọpụta, na-ebelata iguzogide mmiri na-ebute ma na-eme ka ọ dị nro.
3. Thixotropy: Ihe ngwọta methyl cellulose na-egosipụta omume thixotropic, nke pụtara na viscosity ha na-ebelata ka oge na-aga n'okpuru nrụgide siri ike mgbe nile. Mgbe a kwụsịrị ịkwa osisi, ụdọ polymer dị na ngwọta jiri nwayọọ nwayọọ laghachi na nhazi ha, na-eduga na mgbake viscosity na thixotropic hysteresis.
4. Mmetụta okpomọkụ: A na-emetụta viscosity nke ngwọta methyl cellulose site na okpomọkụ, na okpomọkụ dị elu na-edugakarị na viscosity dị ala. Agbanyeghị, ịdabere na ọnọdụ okpomọkụ akọwapụtara nwere ike ịdịgasị iche dabere na ihe ndị dị ka itinye uche na ịdị arọ molekụla.
5. Shear Thinning: Methyl cellulose ngwọta na-enweta shear thinning, ebe viscosity na-ebelata ka ọnụ ọgụgụ shear na-abawanye. Ngwongwo a bara ezigbo uru na ngwa dị ka mkpuchi na nrapado, ebe ihe ngwọta kwesịrị ịdị mfe n'oge ngwa mana na-ejigide viscosity mgbe ọ kwụsịrị ịkwa osisi.
6. Nhazi Gel: N'ebe dị elu ma ọ bụ na ọkwa ụfọdụ nke methyl cellulose, ngwọta nwere ike ịmepụta gels mgbe ọ jụrụ oyi ma ọ bụ na mgbakwunye nke nnu. Gel ndị a na-egosipụta omume siri ike, nke nwere nnukwu viscosity na iguzogide mmiri. A na-eji nhazi gel eme ihe na ngwa dị iche iche, gụnyere ọgwụ, ngwaahịa nri, na ihe nlekọta onwe onye.
7. Ndakọrịta na ihe mgbakwunye: methyl cellulose ngwọta nwere ike gbanwee na mgbakwunye dị ka salts, surfactants, na ndị ọzọ polymers iji gbanwee ha rheological Njirimara. Ihe mgbakwunye ndị a nwere ike imetụta ihe ndị dị ka viscosity, omume gelation, na nkwụsi ike, dabere n'ụdị ihe achọrọ.

Ngwọta methyl cellulose na-egosipụta àgwà rheological dị mgbagwoju anya nke e ji viscosity dị elu, pseudoplasticity, thixotropy, mmetụta okpomọkụ, mkparị nke shear, na nhazi gel. Ngwongwo ndị a na-eme ka methyl cellulose dị iche iche maka ngwa dị iche iche, gụnyere ọgwụ, ngwaahịa nri, mkpuchi, adhesives, na ihe nlekọta onwe onye, ​​​​ebe njikwa ziri ezi na viscosity na omume na-asọpụta dị mkpa.