CMC (carboxymethyl cellulose) na ụlọ ọrụ na-emepụta akwụkwọ bụ ihe mgbakwunye dị mkpa eji eme ka mma na arụmọrụ nke akwụkwọ dịkwuo mma. CMC bụ ngwakọta polymer na-agbaze mmiri nke nwere ezigbo ngbanwe viscosity ma na-arụ ọrụ dị mkpa n'ime akwụkwọ.
1. Ihe ndị bụ isi nke CMC
CMC bụ ihe sitere na cellulose, nke a na-eme site na imeghachi akụkụ hydroxyl nke cellulose na chloroacetic acid. Ọ nwere ezigbo mmiri solubility na ikike mgbanwe viscosity. CMC na-emepụta ihe ngwọta viscous mgbe ọ gbasasịrị na mmiri, nke na-eme ka ọ baa uru na ngwa ọrụ mmepụta ihe dị iche iche.
2. Ọrụ CMC na ụlọ ọrụ na-emepụta akwụkwọ
N'ime usoro nhazi akwụkwọ, a na-ejikarị CMC eme ihe dị ka nrapado, thickener na stabilizer. Ọrụ ya gụnyere:
2.1 Meziwanye ike nke akwụkwọ
CMC nwere ike ịkwalite njikọ na esemokwu nke akwụkwọ n'ụzọ dị irè, ma melite nkwụchi anya mmiri na mpịachi akwụkwọ. Usoro ya na-eme bụ ime ka akwụkwọ sie ike ma na-adịgide adịgide site n'ịkwalite ike njikọ dị n'etiti eriri pulp.
2.2 Melite gloss na ire ụtọ nke akwụkwọ
Ịgbakwunye CMC nwere ike ime ka akwụkwọ dị elu dịkwuo mma ma mee ka mpempe akwụkwọ dị nro. Ọ nwere ike mejupụta oghere ndị dị n'elu akwụkwọ ahụ nke ọma ma belata nhụsianya dị n'elu akwụkwọ, si otú ahụ na-emeziwanye gloss na ibipụta mgbanwe nke akwụkwọ.
2.3 Jikwaa viscosity nke pulp
N'oge usoro nhazi akwụkwọ, CMC nwere ike ịchịkwa viscosity nke pulp nke ọma ma hụ na mmiri na ịdị n'otu nke pulp. Viscosity kwesịrị ekwesị na-enyere aka kesaa pulp nke ọma, belata ntụpọ akwụkwọ, ma melite arụmọrụ mmepụta.
2.4 Melite njide mmiri nke pulp
CMC nwere ikike njigide mmiri dị mma ma nwee ike belata mfu mmiri nke pulp n'oge usoro ịkpụzi. Nke a nwere ike belata mbelata nke akwụkwọ na nsogbu nrụrụ na-eme n'oge usoro ihicha, si otú ahụ na-eme ka nkwụsi ike nke akwụkwọ ahụ dịkwuo mma.
3. Ndozi nke CMC viscosity
Viscosity nke CMC bụ isi ihe maka mmetụta ya na usoro nhazi akwụkwọ. Dị ka ihe dị iche iche mmepụta chọrọ, viscosity nke CMC nwere ike gbanwee site n'ịgbanwe ya itinye uche na molekụla arọ. Kpọmkwem:
3.1 Mmetụta nke ịdị arọ molekụla
The molekụla arọ nke CMC nwere kpọmkwem mmetụta na ya viscosity. CMC nwere ibu molekụla buru ibu na-enwekarị viscosity dị elu, yabụ a na-eji CMC dị arọ dị elu na ngwa ndị chọrọ nnukwu viscosity. CMC dị obere molekụla dabara adaba maka oge chọrọ viscosity dị ala.
3.2 Mmetụta nke itinye uche ngwọta
Ntinye uche nke CMC ngwọta bụkwa ihe dị mkpa na-emetụta viscosity. N'ikwu okwu n'ozuzu, ọkwa dị elu nke ngwọta CMC, ka viscosity ya dịkwuo ukwuu. Ya mere, na mmepụta n'ezie, ihe ngwọta nke CMC kwesịrị ka edozi ya dịka ihe ndị a chọrọ iji nweta ọkwa viscosity achọrọ.
4. Akpachara anya maka ojiji nke CMC
Mgbe ị na-eji CMC n'ime usoro nhazi akwụkwọ, ọ dị mkpa ka rịba ama isi ihe ndị a:
4.1 Oke ziri ezi
Ọnụ ego nke CMC agbakwunyere kwesịrị ịgbanwe dịka ihe achọrọ nke akwụkwọ ahụ. Ọ bụrụ na agbakwunyere nke ukwuu, ọ nwere ike ime ka viscosity pulp dị elu ma na-emetụta usoro mmepụta; ọ bụrụ na ezughi oke, enwere ike ọ gaghị enweta mmetụta a tụrụ anya ya.
4.2 njikwa usoro mgbasa
CMC kwesịrị igbari na mmiri oyi iji zere mmebi n'oge okpomọkụ. A ghaghị ịkpali usoro mgbasa ozi nke ọma iji hụ na CMC agbazere kpamkpam ma zere agglomeration.
4.3 Mmetụta nke uru pH
Arụmọrụ nke CMC ga-emetụta uru pH. Na mmepụta akwụkwọ, a ga-edobe pH kwesịrị ekwesị iji hụ na mmetụta kacha mma nke CMC.
CMC na-arụ ọrụ dị mkpa na ụlọ ọrụ na-emepụta akwụkwọ, na ikike ngbanwe viscosity ya na-emetụta àgwà na arụmọrụ nke akwụkwọ. Site na ịhọrọ na iji CMC nke ọma, ike, gloss, ire ụtọ na mmepụta akwụkwọ nwere ike ime ka ọ dịkwuo mma. Otú ọ dị, na ngwa n'ezie, ntinye uche na viscosity nke CMC kwesịrị ka edozi ya nke ọma dịka mmepụta ihe dị iche iche chọrọ iji hụ na mmetụta ya kacha mma.
Oge nzipu: Ọgọst-13-2024