Hydroxyethythythyth Cellulose (HEC) bụ polymer na-enweghị ọgwụ sitere na cellulose site na ndozi mmiri. Ọ na-ahụ ọtụtụ ọrụ na ụlọ ọrụ dị iche iche n'ihi ihe pụrụ iche ya, dị ka imegide, na-ekwusi ike, na ụdị ihe nkiri. Na ngwa ebe nkwụsi ike nke PH dị mkpa, ịghọta etu OC si arụ ọrụ n'okpuru ọnọdụ plọ dị iche iche dị mkpa.
Nkwụsi ike nke HEC na-ezo aka na ike ya iji nọgide na-eguzosi ike n'ezi ihe, Njirimara nke rheulouze, na arụmọrụ n'ofe mpaghara Fọ. Nkwụsi ike a dị oke mkpa na ngwa dị ka ngwaahịa nlekọta onwe onye, ọgwụ, mkpuchi na ihe ndị gbara gburugburu nwere ike ịdị iche.
Ọdịbe:
Na-ejikarị hec na-ejikọ ya site na imegharị sellulose na ethlene oxide n'okpuru ọnọdụ alkaline. Usoro a na-ebute otu Hydroxy dị iche iche nke Cellulose Backbone nwere hydroxyethyl dị iche iche. Obere ihe eji eme ihe (DS) na-egosi onu ogugu nke otu hydrocyethyl kwa otu a na - eme otu cellulose.
Njirimara:
Solubality: HEC a na-agbanye mmiri na mmiri ma doo ihe ngwọta doro anya, nke virus.
Viscosity: Ọ na-egosipụta usoro pseudoplastic ma ọ bụ nke dị nro, nke pụtara ya viere na-ebelata n'okpuru nrụgide Seear. Ihe onwunwe a na - eme ka ọ baa uru na ngwa ebe ọ dị mkpa, dị ka eserese na mkpuchi.
Thischende: HEC na-enye ọhụụ viscosit na ngwọta, na-eme ka ọ baa uru dị ka onye na-ahụ maka ihe dị iche iche.
Filmzọ nkiri: Ọ nwere ike ịdị n'ụdị fim na-agbanwe agbanwe na fim mgbe a mịrị amị, nke bara uru na ngwa dịka adhesives na mkpuchi.
nkwụsi ike nke hec
Nkwụsi ike nke hec na-emetụta ọtụtụ ihe, gụnyere usoro kemịkalụ nke polymen, mmekọrịta ya na gburugburu ya na gburugburu ya, yana ihe mgbakwunye ọ bụla dị ugbu a.
Nkwụsi ike nke hec ke plọg pịrị:
1. PH ACTIC:
Na acidic ph, hec bụ ihe kwụsiri ike ma nwee ike ịnwe hydrolysis karịrị oge ụfọdụ n'okpuru ọnọdụ acid. Agbanyeghị, n'ọtụtụ ngwa dị mkpa, dị ka ngwaahịa nlekọta nkeonwe na mkpuchi, ebe a na-ezute acidic ph dị nkọ n'ime otu a na-ahụkarị (PH 3 ruo 6). PH 3, ihe egwu nke hydrolysis na-abawanye, na-eduga na ibe nwayọ na viscosity na arụmọrụ. Ọ dị mkpa iji nyochaa pH nke usoro nwere hc ma mezie ya ka ọ dị mkpa iji nọgide na-akwụsi ike.
2.. Nnọpụ PH:
HEC gosipụtara nkwụsi ike dị mma n'okpuru ọnọdụ nsị nke PH (PH 6 ruo 8). Uzo a bụ ihe a na-ahụkarị n'ọtụtụ ngwa, gụnyere ihe ịchọ mma, ọgwụ na ngwaahịa. Hero-nwere usoro nke ya na-ejigide viscosity ha, ihe ndị dị egwu, na arụmọrụ n'ime plọ a. Agbanyeghị, ihe ndị dị ka okpomọkụ na ike Ionic nwere ike ime ka nkwụsi ike ma ekwesịrị ịtụle n'oge mmepe mmepe.
3. Alkaline Ph:
HEC na-akwụsi ike n'okpuru ọnọdụ alkaline ma e jiri ya tụnyere acidic ma ọ bụ na-anọpụ iche. Na ọkwa plọ elu elu (nke dị n'elu ph 8), HEC nwere ike imebi emebi, na-ebute mbelata na viscosity na ịghara ịrụ ọrụ. Ngwurugwu alkaline nke njikọta nke asambodo dị n'etiti celdlose barbone na otu Hydroxyethyyl nwere ike ime, na-eduga na ọsụsọ na-eme ka oke egwu. Ya mere, na usoro nhazi Alkaline dịka ihe na-egbochi ma ọ bụ ihe owuwu, polymers ọzọ ma ọ bụ ihe nrụrụ siri ike karịa hec.
Ihe na-emetụta nkwụsi ike
Ọtụtụ ihe nwere ike imetụta nkwụsi ike nke HEC:
Ogo nke nbanye (HS): HS) dị elu na-akwụsi ike karịa ka ọ dị iche iche na-eme ihe na-eme ka ọ dị iche iche.
Okpomoku: Okpomoku di elu nwere ike osooso mmeghachi omume kemịkalụ, gụnyere hydrolysis. Ya mere, ịnọgide na-echekwa nchekwa na nhazi ọkụ dị mkpa maka ichebe nkwụsi ike nke oke hec.
Ike ionic: Elu dị elu nke nnu ma ọ bụ ndị ọzọ na usoro nwere ike imetụta nkwụsi ike nke hec site na imetụta ndọkpụ ya na mmekọrịta ya na ụmụ irighiri mmiri. Ionic ike ga-arụ ọrụ iji belata nsonaazụ na-abawanye.
Ihe mgbakwunye: itinye ihe mgbakwunye dịka Surfactants, nchekwa, ma ọ bụ ndị ọrụ na-echegbu nwere ike imetụta nkwụsi ike nke hec. Ekwesịrị iduzi nnwale nyocha iji hụ na mgbakwunye na nkwụsi ike.
Ngwa na echiche usoro
Ghọta nkwụsi ike nke HEC dị oke mkpa maka ndị na-ere ahịa na ụlọ ọrụ dị iche iche.
Lee ụfọdụ ntụle doro anya ụfọdụ:
Ngwaọrụ nlekọta nke onwe gị: Na shampoos, igwe, na lotions, na-ejigide na-achọsi ike) na-egbochi nkwụsi ike ma na-egbochi gị.
A na-eji ọgwụ na-eme ihe ọnụ, ihe ngwọta nke Ophthomic, na usoro. Ekwesịrị ịhazi usoro ma chekwaa n'okpuru ọnọdụ na-echekwa hec kwụsiri ike iji hụ na nrụpụta ngwaahịa na ndụ nchekwa.
Copedings na eserese: hec na-arụ ọrụ dị ka oyoology modifier na terner na eserese na mkpuchi mmiri. Ndị na-arụ ọrụ ga-emezi ihe ndị ọzọ chọrọ na ihe ndị ọzọ dị ka vistitoria ndị ọzọ dịka viscosis, na-aka nká, na ihe nkiri.
Ihe akụrụngwa: na usoro iwu ciment, HEC rụọ ọrụ dị ka onye na - ejide mmiri na - arụ ọrụ. Agbanyeghị, ọnọdụ alkaline na ciment nwere ike ịmachi iwu kwụsie ike, ọdịdị nlezianya na mmezi nhazi.
Hydroxyethythyth Cellulose (HEC) na-enye ihe bara uru na akụrụngwa dị iche iche. Ghọta nkwụsi ike nke PH dị mkpa maka ndị na-eme ka ha zụlite nguzobe ma dị irè. Mgbe HEC gosipụtara ezigbo nkwụsi ike n'okpuru ọnọdụ plọọgụ, a ga-enyocha nchebara echiche maka acidic na alkaline na alkaline na alkaline na iji gbochie mmebi iwu. Site na ịhọrọ ọkwa ọkwa kwesịrị ekwesị kwesịrị ekwesị, na-ejikarị usoro nhazi, yana itinye usoro nchekwa kwesịrị ekwesị, ndị na-arụ ọrụ nwere ike ime ka uru dị iche iche dị elu.
Oge Post: Mar-29-2024