N'ime usoro nrapado, cellulose ether, dị ka ihe mgbakwunye dị mkpa, nwere ihe dị iche iche pụrụ iche ma nwee ike imeziwanye arụmọrụ nke nrapado. A na-enweta ogige cellulose ether site na cellulose eke ma bụrụ ihe ndị a na-agbanwe agbanwe, dị ka hydroxypropyl methylcellulose (HPMC), methylcellulose (MC), carboxymethylcellulose (CMC), wdg. usoro.
1. Ihe ndị bụ isi nke cellulose ethers
A na-emepụta cellulose ether site na mgbanwe kemịkalụ nke cellulose eke ma bụrụ ihe na-abụghị ionic polymer compound. Isi njirimara ya gụnyere akụkụ ndị a
Solubility: Enwere ike igbari cellulose ether na mmiri oyi ma ọ bụ mmiri ọkụ iji mepụta ngwọta colloidal kwụsiri ike. Solubility ya na-adabere n'ụdị na ogo nke nnọchi nke ihe ndị na-anọchi anya ya, a pụkwara imezi ike ya site na ịchịkwa nhazi nke cellulose ether.
Ọkpụkpụ: Cellulose ethers nwere mmetụta dị mma na-eme ka mmiri dị mma ma nwee ike inye mmụba dị ukwuu na viscosity na obere mkpokọta. Nke a na-enye ya ohere ịrụ ọrụ na-achịkwa viscosity n'ụdị nrapado.
Ihe na-emepụta ihe nkiri: Cellulose ether nwere ike ịmepụta ihe nkiri siri ike, nke na-egbuke egbuke mgbe ihichachara. Njirimara a dị ezigbo mma maka ngwa ngwa n'ọhịa nke adhesives ma na-enyere aka n'ịkpụzi na ọgwụgwọ ikpeazụ nke oyi akwa.
Biodegradability: Cellulose ether na-enweta site na ihe ndị sitere n'okike, nwere ezigbo bioocompatibility na mmebi, na ọ gaghị eme ka mmetọ na-adịgide adịgide na gburugburu ebe obibi.
2. Usoro ọrụ nke cellulose ether na adhesives
Cellulose ethers na-arụ ọtụtụ ọrụ n'ime usoro nrapado, gụnyere ndị na-agba agba, ihe nkwụsi ike, ndị na-emepụta ihe nkiri, na ndị na-eme mgbanwe rheology. Enwere ike ichikota isi ihe eji eme ya dika ndi a:
Mmetụta dị nro na nkwụsịtụ: Cellulose ethers na adhesives nwere ike ịbawanye viscosity nke usoro ahụ ma melite ihe mkpuchi nke nrapado na nkwụsị sag. Maka adhesives nwere ihe siri ike, cellulose ether nwere ike kesaa ihe ndị siri ike na ngwọta, gbochie ha idozi, ma nyere aka melite nkwusioru na nkwụsi ike nke nrapado.
Meziwanye ihe mkpuchi na ihe owuwu: Site n'ịgbanwe rheology nke nrapado, cellulose ethers nwere ike ime ka nrapado dịkwuo mma ma dị mma n'oge mkpuchi, na-ebelata nsogbu mmiri mmiri n'oge a na-ewu ụlọ. Ọ nwere ike igbochi nrapado ahụ nke ọma mgbe a na-etinye ya n'elu elu, na-eme ka ọ dịkwuo mma maka mkpuchi kwụ ọtọ.
Ịmepụta ihe nkiri na ịgwọ ọrịa: Ihe na-emepụta ihe nkiri nke cellulose ether na nrapado na-enyere ya aka ịmepụta ihe nkiri nrapado na-aga n'ihu n'oge usoro ihicha, si otú ahụ na-eme ka ike dị ike. Ihe nkiri a na-eme ya nwere ike ịrụ ọrụ nchebe, gbochie mmiri dị na oyi akwa nrapado ka ọ ghara ikpochapụ ngwa ngwa, ma nyere aka nchikota nke ọma na gburugburu ebe dị iche iche.
Meziwanye nguzogide mmiri na nkwụsi ike ifriizi: cellulose ether gbanwetụrụ nwere ezigbo nguzogide mmiri na nguzogide ntu oyi, ọkachasị na nrapado ihe owuwu. Ọ na-enyere nrapado aka ịnọgide na-enwe ike njikọ na gburugburu iru mmiri, gbochie nro na ikpochapụ nke nrapado oyi akwa, na ịnọgide na-enwe ezi elasticity na adhesion n'okpuru ala okpomọkụ ọnọdụ.
3. Uru nke cellulose ethers na nrapado formulations
Mee ka ike njikọ dị mma: Ihe na-emepụta ihe nkiri nke cellulose ether nwere ike ime ka ike dị ike nke nrapado dị elu, karịsịa maka adhesives na ubi a na-ewu ihe, dị ka tile adhesives, plasta adhesives, etc. Mgbakwunye nke cellulose ethers nwere ike imeziwanye ike nke adhesives. nrapado oyi akwa. Knot arụmọrụ na anwụ ngwa ngwa.
Na-ebuli rheology na arụ ọrụ: Ikike nke cellulose ether iji chịkwaa rheology nke nrapado nwere ike imezi ihe mkpuchi n'oge arụ ọrụ, zere ịkwa ụda, ma melite arụmọrụ ụlọ. Na mgbakwunye, nkwụsi ike ya na oke okpomọkụ ma ọ bụ oke iru mmiri na-eme ka ọ dị mma maka ọnọdụ ihe owuwu dị mgbagwoju anya.
Ogologo oge mmeghe: N'oge a na-ewu ihe owuwu, cellulose ether nwere ike igbu oge ihicha nke nrapado, na-enye ndị na-arụ ọrụ oge maka mmezi na mgbazi, nke kachasị mma maka mkpa ihe owuwu nnukwu mpaghara. Ngwongwo a dị mkpa karịsịa n'ụdị nrapado chọrọ ịrụ ọrụ nke ọma, dị ka ihe nrapado ihe owuwu na akwụkwọ ahụaja.
Ngwongwo enyi na gburugburu ebe obibi: Cellulose ether bụ ihe sitere n'okike ma nwee ezigbo biodegradability. E jiri ya tụnyere ihe mgbakwunye polymer synthetic ọdịnala, ọ na-enwe mmekọrịta enyi na gburugburu ebe obibi na ọ gaghị ebute mmetọ ogologo oge na gburugburu ebe obibi. Ọ dabara na usoro mmepe nke ugbu a nke nchekwa ndụ ndụ na gburugburu ebe obibi.
Meziwanye nguzogide ihu igwe: Cellulose ether nwere ike imeziwanye nguzogide ịka nká nke nrapado ma gbochie arụmọrụ nke oyi akwa nrapado ịdalata n'okpuru radieshon ultraviolet ogologo oge ma ọ bụ ọnọdụ ihu igwe siri ike. Njirimara antioxidant ya na-enyekwa aka ịgbatị ndụ nke nrapado.
4. Uru ngwa ubi
A na-eji cellulose ethers mee ihe n'ọtụtụ ngwaahịa nrapado, na mpaghara ngwa ha gụnyere ma ọnweghị oke na:
Ngwunye ihe owuwu: N'ebe a na-ewu ihe owuwu, a na-eji cellulose ethers eme ihe na tile adhesives, dry mortars, n'ime na mpụta mgbidi plasta adhesives na ngwaahịa ndị ọzọ iji meziwanye ihe owuwu ha, nkwụsị mmiri na ike njikọ.
Akwụkwọ na nkwakọ ngwaahịa: Ihe na-emepụta ihe nkiri na ezigbo mmiri solubility nke cellulose ethers na-eme ka ha bụrụ ihe ndị dị mma na akwụkwọ ntanye akwụkwọ na akwụkwọ nchịkọta akwụkwọ.
Nhazi osisi: N'ime ihe nkedo osisi, ihe na-eme ka ihe na-emekọ ihe na nke cellulose ethers na-enyere aka melite mmetụta njikọ nke ihe ndị dị ka plywood na fiberboard.
Ihe ịchọ mma ụlọ: N'ime ihe mkpuchi maka ịchọ mma ụlọ dị ka gluu akwụkwọ ahụaja na gluu kapeeti, iji cellulose ether mee ka ọ dịkwuo mfe uwe ma nwee oge mmeghe na ihe na-emepụta ihe nkiri.
Dị ka akụkụ bụ isi n'ime usoro nrapado, cellulose ether nwere ọtụtụ ọrụ dị ka ịgbatị, imepụta ihe nkiri, na nhazigharị rheology, ma nwee ike imeziwanye arụmọrụ nke nrapado, ike njide, na ịdịte aka. Tụkwasị na nke ahụ, ezigbo ihe nchebe gburugburu ebe obibi ya na biocompatibility na-emekwa ka ọ bụrụ ihe mgbakwunye dị mkpa na ụlọ ọrụ nrapado na ọnọdụ nke ugbu a nchụso nke akwụkwọ ndụ akwụkwọ ndụ na mmepe mmepe.
Oge nzipu: Sep-26-2024