Njide mmiri bụ ihe dị mkpa maka ọtụtụ ụlọ ọrụ na-eji ihe hydrodilic dịka eyers celluuloso. Hydroxypylmethylcelllose (hpmc) bụ otu n'ime ndị na-edebe ihe na-eme ihe na-eme ka ihe dị elu. HPMC bụ polymer polymetik sitere na cellose ma na-ejikarị ngwa dị iche iche na usoro owuwu, ọgwụ na ụlọ ọrụ ọgwụ.
A na-eji HPMC mee ihe dị ka nke a na-ejikarị dị ka nke na-arụ ọrụ na ngwaahịa nri dị iche iche dị ka ice cream, sauces na akwa iji bulie udidi ha, na-agbanwe agbanwe na ndụ ubi. A na-ejikwa HPMC mee ihe na mmepụta ọgwụ na ụlọ ọrụ ọgwụ dị ka ihe mgbochi, na-agbachitere na ihe nkiri na-akwụ ụgwọ. A na-ejikwa ya dị ka onye na-ejide mmiri na-ejigide ya na akụrụngwa, tumadi na ciment na ngwa agha.
Njide mmiri bụ nnukwu ihe dị mkpa na-ewu ewu maka na ọ na-enyere aka cent na ngwa agha site na ihicha. Ihicha nwere ike ibute nsị na mgbawa, nke na - ebute n'ụzọ na - adịghị ike na nke enweghị ike. HPMC na-enyere aka ịnọgide na-enwe mmiri na ciment na ngwa agha site na ịmịcha na-eme ka oge na-aga, na-enye ohere ịgwọ ya nke ọma.
Iwu mmiri nke HPMC sitere na hydrophilicity ya. N'ihi ọnụnọ nke otu hydroxy (-OH) na usoro molecular ya, Hpmc nwere otu ịdị ndụ maka mmiri. Ndị otu Hydroxy na-emekọrịta mmiri iji mepụta agbụ hydrogen, na-ebute nguzo nke hydration shei gburugburu polymer agbụ. Sydrated shei na-enye ohere ịgbasa polymer ka ịgbasawanye, na-amụba olu HPMC.
Ọzịza nke HPMC bụ usoro siri ike nke dabere na ihe dị iche iche dịka ogo nke dochie anya (DS), ogo ya na ogo, okpomọkụ na pH. Owuo nke dochie anya na-ezo aka na ọnụọgụ hydyl dị n'otu Anhydrogluse na mgbatị ahụ cellulose. Ihe dị elu DS dị elu, nke dị elu na hydrophilicity na mmachi ahụ. Uru na-ahụkarị nke Hpmc na-emetụta njigide mmiri, dị ka obere uru nwere mpaghara dị elu kwa otu, na-ebute nnabata dị ukwuu. Ọnọdụ okpomọkụ na uru nke a na-emetụta ogo ọzịza na oke mmiri na oke nke plọ elu pH na-eme ka ọzịza na njigide mmiri nke HPMC.
Usoro njigide mmiri nke hpmc na-emetụta usoro abụọ: nnabata na nnabata. N'oge nnabata, Hpmc na-abanye mmiri mmiri site na gburugburu gburugburu gburugburu ya, na-akpụ hydration shei gburugburu polymer agbụ. Hydration sheil na-egbochi polymer ígwè na-ada ada ma na-eme ka ha kewapụ ha, na-eduga n'igbu HPMC. Molecules mmiri na-atọ ụtọ na-etolite agbụ hydrogen na otu hydroxy na HPMC, na-eme ka arụmọrụ mmiri na-arụ ọrụ.
N'oge atsorption, hpmc ji nwayọọ nwayọọ na-ewepụta molecules mmiri, na-ekwe ka ụlọ ahụ gwọọ nke ọma. Nzaghachi nke molecules mmiri na-adakwasị na ciment na ngwa agha nke ukwuu hydrated, na-ebute usoro kwụsiri ike ma na-adịgide adịgide. Mwepụta nwayọ nke molecules na-enye mmiri na-enye mmiri na ciment na ngwa agha, na-eme ka usoro ịgwọ ọrịa na ịbawanye ike na nkwụsi ike nke ngwaahịa ikpeazụ.
Na nchịkọta, njigide mmiri bụ ihe dị mkpa maka ọtụtụ ụlọ ọrụ na-eji ihe hydrodilic dịka eyers celluuloso. HPMC bụ otu n'ime ndị na-edebe ihe mkpuchi ahụ nwere ngwongwo na-egwu mmiri dị elu ma na-ejikwa ya n'ọtụtụ ebe, ọgwụ na ụlọ ọrụ ọgwụ. Ngwongwo mmiri nke HPMC sitere na ya hydrophility ya, nke na-enyere ya aka ịmịnye mmiri mmiri na gburugburu gburugburu ya, na-akpụ hydration shei gburugburu polymer agbụ. Shell Shell na-eme ka HPMC na-emegharị, na iwepụta nwayọ nke molecules nke molecules na-ahụ na ihe eji eme ihe a na-eme ka mmiri sie ike, na-ebute ihe dị mma ma na-adịgide adịgide.
Oge Post: Ọgọst-24-2023