Hydroxyethyl cellulose (HEC)bụ ihe nrụpụta cellulose na-agbaze mmiri nke nwere ezigbo mkpụkọ, imepụta ihe nkiri, moisturize, kwụsie ike, na ihe emulsifying. Ya mere, a na-eji ya n'ọtụtụ ebe mmepụta ihe, karịsịa Ọ na-arụ ọrụ dị mkpa na nke dị mkpa na agba latex (nke a makwaara dị ka agba mmiri).
1. Ihe ndị bụ isi nke hydroxyethyl cellulose
Hydroxyethyl cellulose bụ ngwakọta polymer soluble mmiri nke enwetara site n'ịgbanwe mkpụrụ ndụ cellulose nke kemịkal (na-ewebata otu hydroxyethyl na mkpụrụ ndụ cellulose). Isi njirimara ya gụnyere:
Mmiri solubility: HEC nwere ike igbari n'ime mmiri iji mepụta ngwọta viscous dị ukwuu, si otú a na-eme ka ihe ndị na-emepụta ihe na-emepụta ihe nke mkpuchi ahụ dịkwuo mma.
Mmetụta dị nro: HEC nwere ike ịbawanye viscosity nke agba, na-eme ka agba latex nwee ezigbo mkpuchi mkpuchi.
Adhesion na ihe nkiri na-emepụta ihe: HEC ụmụ irighiri mmiri nwere ụfọdụ hydrophilicity, nke nwere ike ime ka ọrụ mkpuchi nke mkpuchi dịkwuo mma ma mee ka mkpuchi ahụ dịkwuo mma ma dị mma.
Nkwụsi ike: HEC nwere ezigbo nkwụsi ike nke okpomọkụ na nkwụsi ike nke kemịkal, nwere ike ịnọgide na-eguzosi ike n'oge mmepụta na nchekwa nke mkpuchi, ọ dịghịkwa enwe ike imebi.
Ezigbo nguzogide sagging: HEC nwere nnukwu nguzogide sagging, nke nwere ike ibelata ihe na-eme ka agba agba agba n'oge a na-ewu ma melite mmetụta ụlọ.
2. Ọrụ nke hydroxyethyl cellulose na agba latex
Agba Latex bụ agba nke mmiri na-eji mmiri dị ka ihe mgbaze na polymer emulsion dị ka isi ihe na-emepụta ihe nkiri. Ọ bụ enyi na enyi na gburugburu ebe obibi, nke na-adịghị egbu egbu, nke na-adịghị mma ma dị mma maka eserese mgbidi ime ụlọ na n'èzí. Mgbakwunye nke hydroxyethyl cellulose nwere ike imeziwanye arụmọrụ nke agba latex, nke na-egosipụta kpọmkwem n'akụkụ ndị a:
2.1 Mmetụta dị arọ
N'ụdị agba agba latex, a na-ejikarị HEC eme ihe dị ka ihe na-agba agba. N'ihi njirimara mmiri-soluble nke HEC, ọ nwere ike ịgbari ngwa ngwa na ihe mgbaze mmiri ma mepụta usoro netwọk site na mmekọrịta intermolecular, na-abawanye viscosity nke agba latex. Nke a nwere ike ọ bụghị naanị ịkwalite mgbasa nke agba, na-eme ka ọ dịkwuo mma maka ịchacha, ma na-egbochikwa agba ahụ ka ọ ghara ịda mbà n'ihi obere viscosity n'oge usoro eserese.
2.2 Meziwanye arụmọrụ ụlọ nke mkpuchi
HECnwere ike n'ụzọ dị irè dozie rheological Njirimara nke latex agba, melite sag-eguzogide na fluidity nke agba, hụ na agba nwere ike evenly ntekwasa n'elu nke mkpụrụ, na-ezere na-adịghị mma phenomena dị ka egosipụta na eruba akara. Tụkwasị na nke ahụ, HEC nwere ike imeziwanye mmiri nke agba, na-ekwe ka agba latex na-ekpuchi ngwa ngwa mgbe ị na-ese ihe, na-ebelata ntụpọ nke mkpuchi na-enweghị isi.
2.3 Mee ka njigide mmiri dịkwuo elu ma gbasaa oge mmeghe
Dị ka ihe mejupụtara polymer nwere ikike ijide mmiri siri ike, HEC nwere ike ịgbatị oge mmeghe nke agba latex nke ọma. Oge mmeghe na-ezo aka na oge agba na-anọgide na steeti a na-ese. Mgbakwunye nke HEC nwere ike belata evaporation nke mmiri, si otú ahụ na-agbatị oge na-arụ ọrụ nke agba, na-ekwe ka ndị na-arụ ọrụ na-arụ ọrụ na-enwekwu oge maka nhazi na mkpuchi. Nke a dị mkpa maka ngwa ngwa dị mma nke agba, karịsịa mgbe ị na-ese nnukwu ebe, iji gbochie n'elu agba ka ọ ghara ikpochapụ ngwa ngwa, na-ebute akara nchara ma ọ bụ mkpuchi na-enweghị isi.
2.4 Meziwanye mkpuchi mkpuchi na nguzogide mmiri
Na akwa mkpuchi latex, HEC nwere ike ime ka adhesion dị n'etiti agba na elu nke mkpụrụ ahụ iji hụ na mkpuchi adịghị ada ngwa ngwa. N'otu oge ahụ, HEC na-eme ka ọrụ mgbochi mmiri nke agba latex dịkwuo mma, karịsịa na gburugburu iru mmiri, nke nwere ike igbochi ịbanye n'ime mmiri nke ọma ma gbasaa ndụ ọrụ nke mkpuchi. Tụkwasị na nke ahụ, hydrophilicity na adhesion nke HEC na-eme ka agba latex nwee ike ịmepụta ezigbo mkpuchi na ihe dị iche iche.
2.5 Meziwanye nkwụsi ike na ịdị n'otu
Ebe ọ bụ na ihe ndị siri ike dị na agba latex dị mfe idozi, na-ebute àgwà na-adịghị mma nke agba ahụ, HEC, dị ka onye na-agba agba, nwere ike imeziwanye ihe mgbochi na-edozi nke agba. Site n'ịbawanye viscosity nke mkpuchi ahụ, HEC na-eme ka ihe ndị ahụ siri ike na-agbasawanye na mkpuchi ahụ, na-ebelata nkwụsịtụ, si otú ahụ na-ejigide nkwụsi ike nke mkpuchi n'oge nchekwa na ojiji.
3. Uru ngwa nke hydroxyethyl cellulose na agba latex
Mgbakwunye nke hydroxyethyl cellulose nwere uru dị ịrịba ama maka mmepụta na iji agba latex mee ihe. Nke mbụ, HEC nwere àgwà nchebe gburugburu ebe obibi dị mma. Mmiri mmiri ya na ihe na-adịghị egbu egbu na-achọpụta na agba latex agaghị ahapụ ihe ndị na-emerụ ahụ n'oge a na-eji ya eme ihe, na-emezu ihe ndị a chọrọ nke agba agba gburugburu ebe obibi nke oge a. Nke abuo, HEC nwere ihe siri ike na-emepụta ihe nkiri, nke nwere ike imeziwanye àgwà ihe nkiri nke agba latex, na-eme ka mkpuchi ahụ sie ike ma dị nro, na-enwe ike ịdịte aka na mmetọ mmetọ. Tụkwasị na nke ahụ, HEC nwere ike imeziwanye mmiri na ịrụ ọrụ nke agba latex, belata ihe isi ike nke ihe owuwu, ma melite arụmọrụ ọrụ.
Ngwa nkehydroxyethyl cellulosena latex agba nwere ọtụtụ uru na ike n'ụzọ dị irè melite rheological Njirimara, ewu arụmọrụ, adhesion na anwụ ngwa ngwa nke agba. Site na mmụba na-aga n'ihu nke nchebe gburugburu ebe obibi na ihe ndị chọrọ agba, HEC, dị ka ihe dị mkpa na-eme ka ọ dịkwuo mma na ihe na-emeziwanye arụmọrụ, aghọwo otu n'ime ihe mgbakwunye dị mkpa na agba latex ọgbara ọhụrụ. N'ọdịnihu, na mmepe nke nkà na ụzụ, ntinye nke HEC na agba latex ga-agbasawanye ma ike ya ga-adịwanye ukwuu.
Oge nzipu: Nov-14-2024