Methylcellulose (MC) bụ ihe na-emepụta mmiri na-eme ka cellulose na-agbaze, na-emepụta ihe nkiri, na-eme ka ọ dị jụụ na ihe ndị ọzọ. A na-ejikarị ya na nri, ọgwụ, ihe owuwu, ihe ịchọ mma na mpaghara ndị ọzọ. Omume mgbasa ya na mmiri dịtụ iche na ọ dị mfe ịmepụta ngwọta colloidal, ya mere usoro ngwakọta ziri ezi dị oke mkpa maka mmetụta ya.
1. Njirimara nke methylcellulose
Methylcellulose adịghị mfe soluble na ụlọ okpomọkụ, na solubility ya na-emetụta nke ukwuu site na okpomọkụ. N'ime mmiri oyi, methylcellulose nwere ike ịmepụta ngwọta dị n'otu site na iji nwayọọ nwayọọ gbasaa; ma na mmiri ọkụ, ọ ga-agba ọsọ ngwa ngwa na gel. Ya mere, njikwa okpomọkụ dị ezigbo mkpa mgbe ị na-agwakọta methylcellulose na mmiri.
2. Nkwadebe
Methylcellulose: A na-enweta ya site na ndị na-ebubata akụrụngwa akụrụngwa ma ọ bụ ụlọ nyocha.
Mmiri: A na-atụ aro ka iji mmiri distilled ma ọ bụ deionized iji zere adịghị ọcha na mmiri siri ike ka ọ ghara imetụta mgbasa nke methylcellulose.
Ngwakọta Ngwakọta: Dabere na mkpa gị, enwere ike iji igwekota aka dị mfe, obere ngwakọ ngwa ngwa dị elu, ma ọ bụ akụrụngwa agwakọta ụlọ ọrụ. Ọ bụrụ na ọ bụ obere ọrụ ụlọ nyocha, a na-atụ aro ka iji magnetik mkpagharị.
3. Ịgwakọta nzọụkwụ
Usoro 1: Usoro mgbasa mmiri oyi
Premix mmiri oyi: Were mmiri oyi kwesịrị ekwesị (ọkacha mma 0-10 Celsius) ma tinye ya n'ime akpa agwakọta. Gbaa mbọ hụ na mmiri dị n'okpuru 25 Celsius.
Jiri nwayọọ tinye methylcellulose: Jiri nwayọọ wụsa ntụ ntụ methylcellulose n'ime mmiri oyi, na-akpali mgbe ị na-awụsa. Ebe ọ bụ na methylcellulose na-agbakọta, ịgbakwụnye ya ozugbo na mmiri nwere ike ịmalite lumps, na-emetụta ọbụna mgbasa. Ya mere, ọ dị mkpa ka ejiri nlezianya chịkwaa ọsọ nke mgbakwunye iji zere itinye nnukwu ntụ ntụ ozugbo.
Gwakọta nke ọma: Jiri igwekota na ọkara ma ọ bụ obere ọsọ iji fesaa methylcellulose nke ọma na mmiri. Oge mkpali na-adabere na viscosity ngwọta ikpeazụ achọrọ na ụdị akụrụngwa, na-adịkarị 5-30 nkeji. Jide n'aka na ọ dịghị clumps ma ọ bụ clumps nke ntụ ntụ.
Ọzịza: Ka ọ na-akpali akpali, methylcellulose ga-eji nwayọọ nwayọọ na-amịkọrọ mmiri wee zaa, na-eme ngwọta colloidal. Usoro a nwere ike were obere oge, dabere n'ụdị na ọnụọgụ methylcellulose eji. methylcellulose viscosity dị elu na-ewe ogologo oge.
Kwe ka ọ nọdụ ala ka o tozuo: Mgbe edemede ahụ gwụchara, ọ ga-akacha mma ikwe ka ngwakọta ahụ nọdụ ala ruo awa ole na ole ma ọ bụ n'abali iji hụ na methylcellulose gbazere kpamkpam wee zaa. Nke a nwere ike nwetakwuo mma homogeneity nke ngwọta.
Usoro 2: Ụzọ abụọ nke mmiri ọkụ na oyi
Usoro a dabara adaba maka methylcellulose viscous nke siri ike ịgbasa ozugbo na mmiri oyi.
Premix mmiri na-ekpo ọkụ: Kpoo akụkụ nke mmiri ahụ ruo 70-80 Celsius, wee mee ngwa ngwa nwuo na mmiri ọkụ ma tinye methylcellulose. N'oge a, n'ihi oke okpomọkụ, methylcellulose ga-agbasa ngwa ngwa ma ọ gaghị agbaze kpamkpam.
Ntughari mmiri oyi: Ka ị na-aga n'ihu na-akpalite na ngwọta okpomọkụ dị elu, jiri nwayọọ nwayọọ tinye mmiri oyi fọdụrụnụ ruo mgbe ngwọta ngwọta na-adaba na okpomọkụ nkịtị ma ọ bụ n'okpuru 25 ° C. N'ụzọ dị otú a, methylcellulose fụrụ akpụ ga-agbaze na mmiri oyi wee mepụta ngwọta colloidal kwụsiri ike.
Na-akpali ma kwe ka guzoro: Gaa n'ihu na-akpalite mgbe ọ dị jụụ ka ọ hụ na ngwọta ahụ bụ otu. A na-ahapụ ngwakọta ahụ ka ọ nọdụ ala ruo mgbe agbazere ya nke ọma.
4. Akpachara anya
Okpomọkụ nchịkwa: Solubility nke methylcellulose na-enwe mmetụta dị ukwuu na okpomọkụ. Na-agbasasị nke ọma na mmiri oyi, mana ọ nwere ike ịmalite gel na-enweghị isi na mmiri ọkụ. Iji zere ọnọdụ a, a na-atụkarị aro ka iji usoro mgbasa ozi mmiri oyi ma ọ bụ usoro ọkụ na oyi na-ekpo ọkụ.
Zere nchikota: Ebe ọ bụ na methylcellulose na-agbakọta nke ukwuu, ịwụsa nnukwu ntụ ntụ ozugbo n'ime mmiri ga-eme ka elu ahụ gbasaa ngwa ngwa ma na-etolite n'ime ngwugwu ahụ. Nke a abụghị naanị na-emetụta mmetụta mgbasa, mana ọ nwekwara ike ibute viscosity na-enweghị isi nke ngwaahịa ikpeazụ. Ya mere, jide n'aka na ị ga-agbakwunye ntụ ntụ ahụ nwayọọ nwayọọ ma kpalie nke ọma.
Na-akpali ọsọ: High-ọsọ ịkpali nwere ike mfe iwebata a ọnụ ọgụgụ buru ibu nke egosipụta, karịsịa na ngwọta na elu viscosity. Afụ ga-emetụta arụmọrụ ikpeazụ. Ya mere, iji obere-ọsọ ịkpali bụ mma nhọrọ mgbe ị chọrọ ịchịkwa viscosity ma ọ bụ afụ olu.
Ntinye uche nke methylcellulose: Ntinye uche nke methylcellulose n'ime mmiri nwere mmetụta dị ukwuu na mgbasa ya na ihe ngwọta ya. N'ikwu okwu n'ozuzu, na obere mkpokọta (ihe na-erughị 1%), ngwọta dị gịrịgịrị ma dị mfe ịkpali. N'ebe dị elu (karịa 2%), ngwọta ahụ ga-adị nnọọ viscous ma chọọ ike siri ike mgbe ọ na-akpali.
Oge nkwụsị: N'oge nkwadebe nke ngwọta methylcellulose, oge nkwụsị dị mkpa. Ọ bụghị naanị na nke a na-enye ohere ka methylcellulose gbazee kpamkpam, ma na-enyere aka na afụ na ngwọta na-apụ n'anya nke ọma, na-ezere nsogbu afụ na ngwa ndị na-esote.
5. Nkà pụrụ iche na ngwa
N'ime ụlọ ọrụ nri, a na-ejikarị methylcellulose eme thickeners, stabilizers ma ọ bụ colloids, dị ka ice cream, achịcha, ihe ọṅụṅụ, wdg N'ime ngwa ndị a, nzọụkwụ ngwakọta nke methylcellulose na mmiri na-emetụta ọnụ ọnụ na udidi nke ngwaahịa ikpeazụ. Ọnụ ego methylcellulose na-eri nri na-adịkarị obere, na ọ dị mkpa ka etinye nlebara anya pụrụ iche maka ntuzi ziri ezi na mgbakwunye nwayọọ nwayọọ.
N'ebe a na-emepụta ọgwụ, a na-ejikarị methylcellulose eme ihe dị ka ihe na-agbasa maka mbadamba nkume ma ọ bụ dị ka onye na-ebu ọgwụ. N'okwu a, nkwadebe ọgwụ na-achọ ezigbo ngwọta homogeneity na nkwụsi ike, n'ihi ya, a na-atụ aro ka ịchịkwa àgwà ngwaahịa ikpeazụ site n'iji nwayọọ nwayọọ na-abawanye viscosity ma na-ebuli ọnọdụ na-akpali akpali.
Ijikọta methylcellulose na mmiri bụ usoro chọrọ ndidi na nkà. Site n'ịchịkwa okpomọkụ nke mmiri, usoro nke mgbakwunye na ọsọ na-akpali akpali, enwere ike ịnweta ngwọta methylcellulose edo na nke kwụsiri ike. Ma ọ bụ usoro ịgbasa mmiri oyi ma ọ bụ usoro ọkụ na oyi na-ekpo ọkụ, isi ihe bụ iji zere ịchịkọta ntụ ntụ ma hụ na ọzịza na izu ike zuru oke.
Oge nzipu: Sep-30-2024