Mmiri nke hydroxypropyl methylcellulose ether
Ijide mmiri nke ngwakọ ngwakọta akọrọ na-ezo aka n'ike nke ngwakọ iji jide ma mechie mmiri. Ka ọ̀tụ̀tụ̀ viscosity nke hydroxypropyl methylcellulose ether dị elu, otú ahụ ka njide mmiri ka mma. N'ihi na nhazi cellulose nwere njikọ hydroxyl na ether, atọm oxygen dị na otu njikọ hydroxyl na ether na-ejikọ na molekul mmiri iji mepụta njikọ hydrogen, nke mere na mmiri efu na-aghọ mmiri ejikọtara ma na-ekekọta mmiri, si otú a na-arụ ọrụ na njigide mmiri.
Mmiri nke Hydroxypropyl Methyl Cellulose Ether
1. Ọ dị mfe ịgbasa cellulose ether dị nro n'ime mmiri na-enweghị njikọta, mana ọsọ ịgbasa ya dị nnọọ nwayọ. A na-agbaze cellulose ether dị n'okpuru mesh 60 n'ime mmiri ruo ihe dị ka nkeji iri isii.
2. Ọ dị mfe ịgbasa obere ihe dị ka cellulose ether n'ime mmiri na-enweghị njikọta, ọnụego ịgbasa ya dịkwa obere. A na-agbaze cellulose ether n'elu mesh 80 n'ime mmiri ruo ihe dị ka nkeji atọ.
3. Cellulose ether nke dị oke mma na-agbasa ngwa ngwa n'ime mmiri, na-agbaze ngwa ngwa, ma na-emepụta viscosity ngwa ngwa. Cellulose ether nke dị n'elu 120 mesh na-agbaze n'ime mmiri ruo ihe dị ka sekọnd 10-30.
Ka obere ihe ndị dị na hydroxypropyl methylcellulose ether na-adịkwu mma, otú ahụ ka mmiri na-ejide nke ọma. Elu nke cellulose ether nke nwere mkpụrụ osisi na-agbaze ozugbo o metụrụ mmiri aka ma mepụta ihe na-eme ka gel dị. Gluu ahụ na-ekpuchi ihe ahụ iji gbochie ụmụ irighiri mmiri ka ha ghara ịbanye n'ime ya. Mgbe ụfọdụ, a pụghị ịgbasa ya ma gbazee ya n'otu aka ahụ ọbụlagodi mgbe ọ gbasịrị ya ogologo oge, na-emepụta ihe ngwọta ma ọ bụ ngwakọta nke na-acha anụnụ anụnụ. Mkpụrụ ndị ahụ na-agbasa ma na-agbaze ozugbo o metụrụ mmiri aka iji mepụta viscosity otu.
Uru PH nke hydroxypropyl methylcellulose ether (mmetụta na-ebelata oge ma ọ bụ ike mmalite)
A na-achịkwa uru pH nke ndị na-emepụta hydroxypropyl methylcellulose ether n'ụlọ na mba ofesi na ihe dị ka 7, nke dị n'ọnọdụ acidic. Ebe ọ bụ na enwere ọtụtụ nhazi mgbanaka anhydroglucose na nhazi molekul nke cellulose ether, mgbanaka anhydroglucose bụ otu isi nke na-akpata mbelata simenti. Mgbanaka anhydroglucose nwere ike ime ka ion calcium na ngwọta hydration simenti mepụta ngwakọta shuga-calcium molekul, belata mkpokọta calcium ion n'oge mmalite nke hydration simenti, gbochie nhazi na mmiri ozuzo nke calcium hydroxide na calcium salt kristal, ma gbuo oge hydration nke simenti. Ọ bụrụ na uru PH dị na steeti alkaline, moto ahụ ga-apụta n'ọnọdụ ike mbụ. Ugbu a ọtụtụ ụlọ ọrụ mmepụta ihe na-eji sodium carbonate iji gbanwee uru pH. Sodium carbonate bụ ụdị ihe na-eme ngwa ngwa. Sodium carbonate na-eme ka arụmọrụ nke elu nke ihe simenti ka mma, na-akwalite njikọ dị n'etiti ihe ndị ahụ, ma na-eme ka viscosity nke moto dịkwuo mma. N'otu oge ahụ, sodium carbonate na-ejikọta ngwa ngwa na ion calcium na moto iji kwalite nhazi nke ettringite, simenti na-agbakọtakwa ngwa ngwa. Ya mere, a ga-agbanwerịrị uru pH dịka ndị ahịa dị iche iche si dị n'usoro mmepụta n'ezie.
Njirimara Ntinye Ikuku nke Hydroxypropyl Methyl Cellulose Ether
Mmetụta ikuku nke hydroxypropyl methylcellulose ether bụ isi n'ihi na cellulose ether bụkwa ụdị surfactant. Ọrụ interfacial nke cellulose ether na-emekarị na njikọ gas-liquid-solid. Nke mbụ, iwebata afụ ikuku, nke na-esote mgbasa na mmetụta Wetting. Cellulose ether nwere otu alkyl, nke na-ebelata nrụgide elu na ike interfacial nke mmiri nke ukwuu, na-eme ka ọ dị mfe ịmepụta ọtụtụ obere afụ mechiri emechi n'oge usoro mkpali nke ngwọta mmiri.
Njirimara Gel nke Hydroxypropyl Methyl Cellulose Ether
Mgbe agbazere hydroxypropyl methylcellulose ether n'ime moto ahụ, otu methoxyl na hydroxypropyl dị na yinye molekul ga-emeghachi omume na ion calcium na ion aluminom dị na slurry iji mepụta jel viscous ma mejupụta oghere moto simenti., melite ịdị nkọ nke moto ahụ, rụọ ọrụ nke ndochi na nkwado na-agbanwe agbanwe. Agbanyeghị, mgbe matrix mejupụtara nọ n'okpuru nrụgide, polima ahụ enweghị ike ịrụ ọrụ nkwado siri ike, yabụ oke ike na mpịachi nke moto ahụ na-ebelata.
Nhazi ihe nkiri nke Hydroxypropyl Methyl Cellulose Ether
Mgbe etinyere hydroxypropyl methyl cellulose ether maka mmiri mmiri, a na-emepụta obere ihe mkpuchi latex n'etiti ihe ndị simenti ahụ. Ihe nkiri a nwere mmetụta mkpuchi ma na-eme ka elu nke ihe mkpuchi ahụ kpọọ nkụ. N'ihi ezigbo njide mmiri nke hydroxypropyl methylcellulose ether, a na-echekwa molekul mmiri zuru oke n'ime ihe mkpuchi ahụ, si otú a na-eme ka simenti sie ike ma na-etolite ike zuru oke, na-eme ka ike njikọ nke ihe mkpuchi ahụ ka mma, ma n'otu oge ahụ ọ na-eme ka njikọ nke ihe mkpuchi ahụ ka mma, na-eme ka ihe mkpuchi ahụ nwee ezigbo plasticity na mgbanwe, ma na-ebelata mkpụkọ na mgbanwe nke ihe mkpuchi ahụ.
Oge ozi: Mee-23-2023