1. Methylcellose (mc)
Mgbe owu na-etichara alkali, sel sel sel na-emepụta site na mmeghachi omume na methane chloride dị ka onye ọrụ Ither. N'ozuzu, ogo nke nnọchi bụ 1.6 ~ 2.0, na solubity dịkwa iche na ogo dị iche iche nke dochie. Ọ bụ nke na-abụghị ionic ether.
(1) Methylcellose na-soluble na mmiri oyi, ọ ga-esikwa ike ịgbari na mmiri ọkụ. Ngwọta ya dị oke mma na mpaghara PH = 3 ~ 12. Ọ nwere ezigbo ndakọrịta na stachi, Guar chịm, wdg na ọtụtụ fromsactants. Mgbe ọnọdụ okpomọkụ na-erute okpomọkụ ahụ, gelation emee.
(2) Ibelata mmiri nke methyl cellulose na-adabere na mgbakwunye ya, viscosity, urughuru na ọnụego ya. N'ozuzu, ọ bụrụ na mgbakwunye ego buru ibu, ọ dị obere, na viscosis buru ibu, ọnụ ọgụgụ njigide mmiri dị elu. N'etiti ha, ego nke mgbakwunye nwere mmetụta kachasị ukwuu na ụzọ mbelata mmiri, yana ọkwa viscosity abụghị nke dabara na ọkwa nke mmiri iji. Ọnụego mgbasa efe si na-adabere na ogo mgbanwe nke mkpụrụ osisi cellulose na urughuru. N'etiti ndị dị n'elu Cellers dị n'elu, methyl cellulose na hydroxyl methyl methyl cellulose nwere ọnụego mmiri dị elu.
(3) Mgbanwe na ọnọdụ okpomọkụ ga-emetụta oke mmiri nke methyl cellulose. N'ozuzu, elu okpomọkụ, nke na-akacha njọ mmiri. Ọ bụrụ na mgbochi okpomọkụ karịrị 40 Celsius C, njigide mmiri nke methy cellulose ga-ebelata, na-emetụta oke owuwe ihe ngwa agha.
(4) methyl cellulose nwere mmetụta dị ukwuu na owuwu na ngwa agha. "Adhesion" ebe a na-ezo aka na ike ọrụ dị n'etiti ngwaọrụ ndị ọrụ onye ọrụ na mkpụrụ mgbidi, ya bụ, na-emegide ya na ngwa agha nke ngwa agha. Ndozi ahụ dị elu, nke a na-achọ ka ndị ọrụ na-ahụ maka ọrụ buru ibu, na owuru arụ ọrụ nke ngwa agha ahụ dara ogbenye. Methyl Cellulose na-eme na ọkwa na-agafe agafe ngwaahịa ether.
2. Hydroxypylmethylcelllose (hpmc)
Hydroxypyl Methylcellose bụ ụdị mkpụrụ osisi cellulose nke mmepụta ya na ihe oriri na-adịwanye ngwa ngwa n'afọ ndị na-adịbeghị anya. Ọ bụ nke na-abụghị nke ionic cellulose mere site na owu nụchara anụcha, na-eji propylene oxide na methyl chloride dị ka onye na-eme ihe nkiri, site na usoro mmeghachi omume. Ogo nke dochie anya ya bụ 1.2 ~ 2.0. Njirimara ya dị iche n'ihi ogo dị iche iche nke methoxy na ọdịnaya mmiri hydroxypypyl.
(1) hydroxypylthylththththyth na-agbanye mmiri oyi, ọ ga-ezute ihe isi ike na mmiri ọkụ. Ma ọnọdụ okpomoku ya na mmiri ọkụ dị elu karịa nke methy cellulose. A na-akwalitekwa ngụgụ na mmiri oyi na-akwalite ya na methy cellulose.
(2) viscosity nke hydroxyl Methylcelllose metụtara oke molecular ya, na ibu oke molecular ibu, onye dị elu na viscosity. Ọnọdụ okpomọkụ na-emetụtakwa viscosity ya, dị ka ọnọdụ okpomọkụ na-abawanye, viscese belata. Agbanyeghị, viscosity ya dị elu nwere obere okpomọkụ karịa methy cellulose. Ngwọta ya kwụsiri ike mgbe echekwara na ụlọ okpomọkụ.
(3) Njikọ mmiri nke hydropyythylthythyth na-adabere na mgbakwunye ya, viscosity, na -achi anya ya n'okpuru otu mgbakwunye ahụ dị elu karịa nke methy cellulose.
(4) hydroxylthylthylthylthylthylthyllose bụ ọkaibe na acid na alkali, na ngwọta ya dị oke mma na oke nke pH = 2 ~ 12. Saustic Sọsda na Wayo Waime enweghị obere mmetụta na arụmọrụ ya, mana alkali nwere ike ime ka ọpụpụ ya ma mee ka ọ dịkwuo ọhụrụ. Hydroxypyl Methylcellose bụ nkwụsi ike na nnu, ma mgbe ịta nke nnu dị elu, viscosity hydroxypyl methylcellopy na-abawanye.
(5) hydroxyppropyythylthylthyl na-eji ọgwụ polmer na-adọkpụ na-etolite iji mepụta otu unifort na usoro visinity dị elu. Dị ka mmanya polyvinyl, stachi ether, ihe oriri na akwukwo nri, wdg.
(6) hydroxylthylthylthylthylcelllose nwere ike iguzogide elu karịa methylcellose, na ihe ngwọta ya agaghị emebi emebi site na enzymes karịa methylcellose. Adhesion nke hydroxypylthylthylcelllose ka agha agha dị elu karịa nke methylcelllose.
3. Hydroxyethythyth Cellulose (HEC)
A na-eme ya site na owu nụchara anụcha na alkali na-emeso Alkali, ma meghachi omume na Ethlene Oxi dị ka onye ọrụ Itherification n'ihu acetone. Ogo nke dochie anya ya bụ 1.5 ~ 2.0. O nwere hydrophilicy siri ike ma dịkwa mfe ịnabata mmiri.
(1) hydroxyethythyythythythythyth celluble na mmiri oyi, mana o siri ike igbari na mmiri ọkụ. Ngwọta ya kwụsiri ike na oke okpomọkụ na-enweghị gellling. Enwere ike iji ya ruo ogologo oge dị elu okpomọkụ na ngwa ọgụ ya dị ala karịa nke methy cellulose.
(2) hydroxyethyth cellulose bụ kwụsie ike na acid na alkali. Alkali nwere ike mee ngwa ngwa mgbasa ma nwekwuo mmụba na viscosity. Mgbasa ya na mmiri dị oke njọ karịa nke methy cellulose na hydroxypyl methyl cellulose. .
(3) hydroxyethythyythythythythythyth cellulose nwere ezigbo mgbochi SAG dịịrị maka ngwa agha, mana ọ nwere oge azụ oge maka ciment.
(4) arụmọrụ nke celdroxyethyth se cel cellulose dị ala karịa nke ụlọ ọrụ methy sellose n'ihi ọdịnaya mmiri ya dị elu na ọdịnaya dị elu.
4.
A na-eme ionic sel sel site na eriri sitere n'okike (owu, wdg) na alkali na-emeso Alkali ma jiri ya dị ka onye ọrụ Itherification site na usoro mmeghachi omume. Ogo nke dochie anya ya bụ 0.4 ~ 1.4, na arụmọrụ ya emetụtala oke.
(1) coulboxythyythythythythythythylythyth cellulose bụ hgroscopic, ọ ga-enwe mmiri karịa mgbe echekwara n'okpuru ọnọdụ niile.
(2) Ohere carboxymymymythymythymythylythylythylythyl agaghị emepụta gel, na visses ga-agbadata na mmụba nke okpomọkụ. Mgbe ọnọdụ okpomọkụ gafere 50 Celsius C, viscosity na-apụghị ịgbanwe agbanwe.
(3) PH na-emetụta ike ya nke ukwuu. Ohaneze, enwere ike iji ya na mpekere nke gypsum, ma ọ bụghị na ngwa agha ciment. Mgbe alkaline nke ukwuu, ọ na-efunahụ viscosity.
(4) Njide mmiri ya dị obere karịa nke methy cellulose. O nwere mmetụta na-akwụ ụgwọ na ngwa agha gypsum ma belata ike ya. Agbanyeghị, ọnụahịa nke coulboxythylythym cellulose dị ala karịa nke methyl cellulose
Oge post: Jan-10-2023