Hydroxyethylcellulose (HEC) bụ ihe a na-ejikarị eme ihe na-eme ka mmiri na-agbaze mmiri nke a na-ejikarị na ngwaahịa nlekọta onwe onye dị ka gel ịsa ahụ na ncha mmiri mmiri. Isi ọrụ ya bụ ime ihe dị ka onye na-agbapụta, stabilizer na emulsifier iji meziwanye ihe anụ ahụ na ahụmịhe onye ọrụ nke ngwaahịa ahụ.
(1). Ngwa nke HEC na gel ịsa ahụ
Gel ịsa ahụ bụ ngwaahịa nlekọta onwe onye a na-ejikarị eme ihe nke ọrụ ya bụ ihicha akpụkpọ ahụ. HEC na-arụ ọrụ dị mkpa na gel ịsa ahụ, yana ngwa ya akọwapụtara bụ ndị a:
1.1 Mmetụta dị arọ
HEC nwere ike ịbawanye viscosity nke gel ịsa ahụ nke ọma, na-enye ya ezigbo agbanwe agbanwe na mmiri. Nke a ọ bụghị nanị na-enyere aka melite udidi nke ngwaahịa, ma na-egbochikwa ngwaahịa stratifying ma ọ bụ dozie na karama. Site n'ịchịkwa ego nke HEC agbakwunyere, enwere ike gbanwee viscosity nke gel ịsa ahụ iji gboo mkpa nke ndị na-azụ ahịa dị iche iche.
1.2 Mmetụta nkwụsi ike
Dị ka ihe nkwụsi ike, HEC nwere ike igbochi ihe ndị na-arụ ọrụ na gel ịsa ahụ nkewa ma ọ bụ dozie. Ọ nwere ike ịmepụta ngwakọta otu n'etiti oge mmiri na mmanụ mmanụ, na-ahụ na ngwaahịa ahụ na-adịgide adịgide n'oge nchekwa na ojiji. Ọnụnọ nke HEC dị mkpa karịsịa na mmiri ịsa ahụ nwere mmanụ dị mkpa ma ọ bụ ihe ndị ọzọ na-adịghị edozi.
1.3 mmetụta moisturize
HEC nwere ezigbo ihe na-edozi ahụ ma nwee ike ịmepụta ihe nkiri na-ekpo ọkụ n'elu akpụkpọ ahụ iji gbochie mmiri ozuzo. Nke a na-enyere aka mee ka akpụkpọ ahụ dịkwuo mma ma na-eme ka ndị ọrụ nwee ahụ iru ala ma na-eme ka mmiri na-ekpo ọkụ mgbe ị na-eji gel ịsa ahụ. Mgbe ejiri ya na ihe ndị ọzọ na-eme ka mmiri dị nro, HEC nwere ike ịkwalite mmetụta moisturize nke ngwaahịa ahụ.
(2). Ngwa nke HEC na ncha mmiri mmiri
Ncha mmiri mmiri bụ ngwaahịa nlekọta onwe onye ọzọ a na-ejikarị eme ihe maka nhicha aka na ahụ. Ngwa nke HEC na ncha mmiri mmiri yiri nke gel ịsa ahụ, mana ọ nwekwara njirimara pụrụ iche nke ya:
2.1 Imelite udidi ụfụfụ
HEC nwere ike melite udidi nke ụfụfụ nke ncha mmiri mmiri, na-eme ka ọ dịkwuo nro ma na-adịgide adịgide. Ọ bụ ezie na HEC n'onwe ya abụghị onye na-emepụta ụfụfụ, ọ nwere ike inye aka ịnọgide na-enwe nkwụsi ike nke ụfụfụ ahụ site n'ịbawanye viscosity na nkwụsi ike nke mmiri mmiri. Nke a na-eme ncha mmiri mmiri bara ụba na ụfụfụ ma dị mfe ịsacha mgbe ejiri ya.
2.2 Na-achịkwa mmiri mmiri
A na-etinyekarị ncha mmiri mmiri n'ime karama mgbapụta, na fluidity bụ otu n'ime njirimara ya. Mmetụta siri ike nke HEC nwere ike inye aka dozie ncha nke ncha mmiri mmiri, na-eme ka ọ ghara ịdị gịrịgịrị ma ọ bụ buru oke ibu mgbe a na-agbapụta ya, na-eme ka ọ dịrị ndị ọrụ mfe iji. Mmiri mmiri kwesịrị ekwesị nwekwara ike izere oke mkpofu ma hụ na usoro onunu ogwu a na-eji oge ọ bụla dị oke.
2.3 Na-enye echiche nke mmanu mmanu
N'oge usoro ịsa aka, HEC nwere ike inye ụfọdụ mmetụta nke mmanye ma belata esemokwu akpụkpọ ahụ. Nke a dị mkpa karịsịa maka ndị ọrụ na-ejikarị ncha mmiri mmiri eme ihe, n'ihi na ọ nwere ike ibelata ihe ize ndụ nke nkụ na akpụkpọ anụ. Karịsịa n'ime ncha mmiri mmiri nwere ihe ndị na-egbu egbu, mmetụta mmanye nke HEC nwere ike belata ahụ erughị ala akpụkpọ ahụ nke ihe nchacha na-eme.
(3). Akpachara anya maka ojiji
Ọ bụ ezie na HEC nwere ọtụtụ uru na ngwaahịa nlekọta onwe onye, enwekwara ihe ụfọdụ ị ga-ahụ mgbe ị na-eji ya:
3.1 Mgbakwunye ego njikwa
Ọnụ ego nke HEC agbakwunyere kwesịrị ka edozi ya dịka ihe achọrọ nke ngwaahịa ahụ. Ọtụtụ HEC nwere ike ime ka ngwaahịa ahụ dị oke viscous ma metụta ahụmahụ onye ọrụ; Obere HEC nwere ike ọ gaghị enweta mmetụta dị oke mkpa. N'ozuzu, ego HEC ejiri mee ihe dị n'etiti 0.5% na 2%, ma ekwesịrị ịhazi ya dịka usoro akọwapụtara na mmetụta a tụrụ anya ya.
3.2 Okwu solubility
HEC kwesịrị ka agbaze kpamkpam na mmiri iji rụọ ọrụ. N'oge a na-emepụta ihe, a na-ejikọta HEC na ihe ndị ọzọ tupu ya ejiri nwayọọ nwayọọ tinye mmiri iji gbochie caking ma ọ bụ agglomeration. N'otu oge ahụ, a na-achọ mkpali zuru oke n'oge mgbasa iji hụ na HEC na-agbasasị na ngwọta.
3.3 Ndakọrịta na ihe ndị ọzọ
HEC nwere nkwụsi ike dị iche iche na ụkpụrụ pH dị iche iche, ya mere ọ dị mkpa ka a tụlee ndakọrịta na ihe ndị ọzọ mgbe ị na-emepụta usoro ahụ. Ụfọdụ surfactants ma ọ bụ ihe mgbaze nwere ike imetụta arụmọrụ nke HEC na ọbụna kpatara ọdịda ngwaahịa. Ya mere, mgbe ị na-ewebata ihe ọhụrụ n'ime usoro ahụ, a ga-eme nyocha nkwụsi ike zuru oke.
Ngwa nke hydroxyethyl cellulose n'ime mmiri ịsa ahụ na ncha mmiri mmiri nwere uru dị ukwuu. Ọ bụghị naanị na ọ na-eme ka njirimara anụ ahụ nke ngwaahịa ahụ dịkwuo mma, kamakwa ọ na-eme ka ahụmịhe onye ọrụ dịkwuo mma. Otú ọ dị, mgbe ị na-eji HEC, ekwesịrị ịkwụ ụgwọ nlebara anya na njikwa ego nke mgbakwunye, nsogbu solubility, na ndakọrịta na ihe ndị ọzọ iji hụ na nchekwa na ịdị irè nke ngwaahịa ahụ. Site na ọganihu teknụzụ na-aga n'ihu, atụmanya ngwa nke HEC na ngwaahịa nlekọta onwe onye ga-abawanye.
Oge nzipu: Ọgọst-06-2024