Hydroxyethyl cellulose (HEC) bụ ihe polymer na-agbaze na mmiri nke na-abụghị ionic, nke a na-ejikarị eme ihe ịchọ mma, ọgwụ, agba, ihe mkpuchi, owuwu na ubi ndị ọzọ. Ọ nwere ezigbo ọkpụrụkpụ, nkwusioru, mgbasa, emulsification, nhazi ihe nkiri, njigide mmiri na ihe ndị ọzọ, yabụ ọ ghọwo ihe enyemaka dị mkpa n'ọtụtụ ụlọ ọrụ. Agbanyeghị, a naghị enweta hydroxyethyl cellulose ozugbo site na ihe ndị sitere n'okike, kama a na-enweta ya site na ịgbanwe cellulose eke site na kemịkalụ. Iji mezuo nke a, iji ghọta isi iyi eke nke hydroxyethyl cellulose, anyị kwesịrị ibu ụzọ ghọta isi iyi na nhazi nke cellulose.
Isi iyi sitere n'okike nke cellulose
Cellulose bụ otu n'ime polima ndị organic kachasị n'ụwa ma dị n'ime mgbidi sel nke osisi, ọkachasị n'osisi osisi, owu, flax na eriri osisi ndị ọzọ. Ọ bụ ihe dị mkpa na nhazi osisi ma na-enye ike na nkwụsi ike igwe. Isi ihe dị na cellulose bụ molekul glucose, nke ejikọtara site na njikọ β-1,4-glycosidic iji mepụta usoro ogologo agbụ ígwè. Dịka ihe polymer eke, cellulose nwere ihe anụ ahụ na kemịkalụ dị mma, na-eme ka ọ bụrụ ihe dị mkpa maka ihe dị iche iche sitere na ya.
Usoro nkwadebe nke hydroxyethyl cellulose
Ọ bụ ezie na cellulose n'onwe ya nwere ọtụtụ ihe bara uru dị ukwuu, oke ojiji ya pere mpe ruo n'ókè ụfọdụ. Isi ihe kpatara ya bụ na cellulose enweghị ike ịgbaze nke ọma, ọkachasị enweghị ike ịgbaze nke ọma na mmiri. Iji meziwanye ihe onwunwe a, ndị ọkà mmụta sayensị na-agbanwe cellulose site na kemịkalụ iji kwadebe ihe dị iche iche sitere na cellulose. Hydroxyethyl cellulose bụ cellulose ether nke na-agbaze mmiri nke a na-enweta site na ethoxylating cellulose eke site na mmeghachi omume kemịkalụ.
N'ime usoro nkwadebe kpọmkwem, a na-agbaze cellulose eke na mmiri alkali, wee tinye ethylene oxide na sistemụ mmeghachi omume. Mmeghachi omume ethylene oxide na otu hydroxyl dị na cellulose na-eme iji mepụta hydroxyethyl cellulose. Mgbanwe a na-eme ka hydrophilicity nke cellulose yinye dịkwuo elu, si otú a na-eme ka ọ na-agbaze ma na-enwu enwu n'ime mmiri ka mma.
Isi mmalite ihe eji emepụta ihe
Isi ihe e ji emepụta hydroxyethyl cellulose bụ cellulose, ihe ndị sitere n'okike nke cellulose gụnyere:
Osisi: Mkpụrụ ndụ cellulose dị n'osisi dị elu, ọkachasị n'osisi coniferous na nke nwere akwụkwọ akwụkwọ sara mbara, ebe cellulose nwere ike iru 40%-50%. Osisi bụ otu n'ime isi iyi cellulose kachasị mkpa n'ụlọ ọrụ mmepụta ihe, ọkachasị n'ịme akwụkwọ na mmepụta nke ihe ndị sitere na cellulose.
Owu: E ji cellulose dị ọcha mee eriri owu, ihe dị na cellulose dị na owu karịrị 90%. N'ihi ịdị ọcha ya dị elu, a na-ejikarị eriri owu emepụta ihe ndị sitere na cellulose dị elu.
Eriri osisi dịka flax na hemp: Eriri osisi ndị a bara ụba na cellulose, ebe ọ bụ na eriri osisi ndị a na-enwekarị ike mekaniki dị elu, ha nwekwara ụfọdụ uru na mwepụta cellulose.
Ihe mkpofu ugbo: gụnyere ahịhịa, ahịhịa ọka wit, ahịhịa ọka, wdg. Ihe ndị a nwere ụfọdụ cellulose, enwere ike iwepụta cellulose site na ha site na usoro ọgwụgwọ kwesịrị ekwesị, na-enye ebe dị ọnụ ala ma dịkwa ọhụrụ maka mmepụta nke ihe ndị sitere na cellulose.
Ebe eji hydroxyethyl cellulose eme ihe
N'ihi ihe pụrụ iche dị na hydroxyethyl cellulose, a na-ejikarị ya eme ihe n'ọtụtụ ebe. Ihe ndị a bụ ọtụtụ ebe a na-eji ya eme ihe:
Ụlọ ọrụ owuwu: A na-ejikarị Hydroxyethyl cellulose eme ihe n'ihe owuwu dị ka ihe na-eme ka ihe sie ike ma na-ejide mmiri, ọkachasị na simenti, gypsum, putty powder na ihe ndị ọzọ, nke nwere ike ime ka ihe owuwu na nchekwa mmiri nke ihe ndị ahụ ka mma nke ọma.
Ụlọ ọrụ kemịkalụ kwa ụbọchị: N'ihe eji asa ákwà, ihe eji elekọta akpụkpọ ahụ, shampoo na ngwaahịa kemịkalụ ndị ọzọ kwa ụbọchị, a na-eji hydroxyethyl cellulose eme ihe dị ka ihe na-eme ka ihe sie ike ma na-eme ka ngwaahịa ahụ sie ike nke ọma.
Agba na ihe mkpuchi: N'ime ụlọ ọrụ mkpuchi, a na-eji hydroxyethyl cellulose dị ka ihe na-eme ka ihe dị arọ ma na-achịkwa rheology iji melite ọrụ nke mkpuchi ahụ ma zere ịda ada.
Ngalaba ọgwụ: N'ọgwụgwọ ọgwụ, enwere ike iji hydroxyethyl cellulose dị ka ihe na-ejikọ, ihe na-eme ka ihe sie ike na ihe na-egbochi mbadamba iji melite njirimara mwepụta na nkwụsi ike nke ọgwụ.
Ọ bụ ezie na hydroxyethyl cellulose abụghị ihe sitere n'okike, ihe ndị bụ isi ya, cellulose, dị n'ọtụtụ ebe n'osisi n'okike. Site na mgbanwe kemịkalụ, enwere ike ịgbanwe cellulose eke ka ọ bụrụ hydroxyethyl cellulose na arụmọrụ dị mma ma tinye ya n'ọrụ n'ọtụtụ ụlọ ọrụ. Osisi ndị sitere n'okike dịka osisi, owu, flax, wdg. na-enye nnukwu isi iyi nke ihe eji emepụta hydroxyethyl cellulose. Site na mmepe nke sayensị na teknụzụ na mmụba nke ọchịchọ ụlọ ọrụ, a na-emezikwa usoro mmepụta nke hydroxyethyl cellulose mgbe niile, a na-atụkwa anya na ọ ga-egosi uru pụrụ iche ya n'ọtụtụ ubi n'ọdịnihu.
Oge ozi: Ọktoba-23-2024