HPMC na uwe Skim

Hydroxypropyl methyl cellulose (HPMC) viscosity maka Skim uwe?

- azịza: Skim uwe dị mma ọtụtụ HPMC 100000cps, ụfọdụ ogologo nke chọrọ na ngwa agha, chọrọ 150000cps ike iji. Ọzọkwa, HPMC bụ ọrụ kachasị mkpa nke njide mmiri, na-esote thickening. Na uwe Skim , ọ bụrụhaala na njide mmiri dị mma, viscosity dị ala (7-80000), ọ ga-ekwe omume, n'ezie, viscosity dị ukwuu, njigide mmiri dị n'akụkụ dị mma, mgbe viscosity karịrị 100. puku, viscosity nke njide mmiri adịghị ukwuu.

Gịnị bụ isi ọrụaka egosi hydroxypropyl methyl cellulose (HPMC)?

Azịza: Ọdịnaya Hydroxypropyl na viscosity, ọtụtụ ndị ọrụ na-eche banyere ihe ngosi abụọ a. Ọdịnaya Hydroxypropyl dị elu, njide mmiri na-adịkarị mma. Viscosity, njide mmiri, onye ikwu (ma ọ bụghị zuru oke) dịkwa mma, na viscosity, ngwa ngwa ciment ka mma iji ụfọdụ.

Hydroxypropyl methyl cellulose (HPMC) kedu ihe bụ isi akụrụngwa?

Azịza: hydroxypropyl methyl cellulose (HPMC) isi akụrụngwa: owu nụchara anụcha, chloromethane, propylene oxide, ndị ọzọ akụrụngwa, mbadamba alkali, acid, toluene, isopropyl mmanya na na.

HPMC na Skim uwe na ngwa, isi ọrụ, ma kemịkal?

Azịza: HPMC in Skim uwe , ndim, mmiri na ewu nke atọ ọrụ. Ọkpụkpụ: cellulose nwere ike ịgbatị ka nkwusioru, nke mere na ihe ngwọta ahụ na-anọgide na-edobe elu na ala ọrụ nke mgbochi-asọpụta. Njide mmiri: mee ka uwe Skim kpoo nwayọọ nwayọọ, enyemaka calcium isi awọ n'omume mmeghachi omume mmiri. Ewu: cellulose lubrication, nwere ike ime ka uwe Skim nwere ihe owuwu dị mma. HPMC anaghị eso na mmeghachi omume kemịkalụ ọ bụla, mana ọ na-arụ naanị ọrụ nkwado. Skim uwe na mmiri, na mgbidi, bụ mmeghachi omume kemịkalụ, n'ihi ọgbọ nke ihe ọhụrụ, mgbidi nke uwe mkpuchi Skim na-agbada na mgbidi ahụ, gbanye ya n'ime ntụ ntụ, wee jiri ya mee ihe, ọ dịghị mma, n'ihi na emepụtawo ihe ọhụrụ. (calcium carbonate). Isi ihe dị na ntụ ntụ ntụ ntụ ntụ bụ: Ca (OH) 2, CaO na obere ngwakọta CaCO3, CaO + H2O = Ca (OH) 2 - Ca (OH) 2 + CO2 = CaCO3↓ + H2O calcium gray na mmiri. na ikuku n'okpuru omume nke CO2, e guzobere calcium carbonate, na HPMC naanị mmiri, inyeaka isi awọ calcium mma mmeghachi omume, ya onwe ya ekere òkè ọ bụla mmeghachi omume.

HPMC bụ cellulose na-abụghị ionic, yabụ kedu ihe na-abụghị ionic?

A: N'ikwu okwu n'ozuzu, ndị na-abụghị ions bụ ihe ndị na-adịghị ionize na mmiri. Ionization bụ nkewa nke electrolyte n'ime ion ebubo na-ebugharị n'efu na ihe mgbaze akọwapụtara, dị ka mmiri ma ọ bụ mmanya. Dịka ọmụmaatụ, nnu anyị na-eri kwa ụbọchị - sodium chloride (NaCl) na-agbaze na mmiri na ionizes iji mepụta ion sodium na-enweghị ego (Na +) na ụgwọ dị mma na ions chloride (Cl) na ụgwọ na-adịghị mma. Ya bụ, HPMC n'ime mmiri anaghị ekewa n'ime ion ebubo, kama ọ dị dị ka ụmụ irighiri ihe.

Kedu ihe jikọrọ ikuku gelation nke hydroxypropyl methyl cellulose?

Azịza: The jel okpomọkụ nke HPMC metụtara methoxyl ọdịnaya. N'ihe dị n'ime methoxyl dị ala, otú ahụ ka ikuku gel dị elu.

Skim mkpuchi ntụ ntụ na HPMC enweghị mmekọrịta?

Azịza: Skim uwe dobe ntụ ntụ tumadi na ash calcium àgwà nwere nnukwu mmekọrịta, na HPMC enweghị oke mmekọrịta. Ọdịnaya calcium dị ala nke calcium isi awọ na oke na-ekwesịghị ekwesị nke CaO na Ca (OH) 2 na calcium isi awọ ga-eme ka ntụ ntụ ntụ. Ọ bụrụ na enwere mmekọrịta na HPMC, mgbe ahụ, njigide mmiri na-adịghị mma nke HPMC ga-emekwa ka mfu ntụ ntụ.

Gịnị bụ ihe dị iche n'etiti mmiri oyi soluble na ọkụ soluble hydroxypropyl methyl cellulose na usoro mmepụta?

– Azịza :HPMC oyi mmiri ngwa ngwa ngwọta ụdị bụ mgbe glioxal elu ọgwụgwọ, tinye na mmiri oyi ngwa ngwa gbasasịa, ma ọ bụghị n'ezie etisasịwo, viscosity elu, na-etisasịwo. Eji glycoxal gwọọ ụdị thermosoluble n'elu. Ọnụ ọgụgụ nke glycoxal buru ibu, mgbasa ozi na-adị ngwa ngwa, ma viscosity na-adị ngwa ngwa, ego ahụ dị ntakịrị, n'ụzọ megidere ya.

Kedu ihe bụ hydroxypropyl methyl cellulose (HPMC) na-esi ísì?

- Azịza: HPMC emepụtara site na usoro mgbaze bụ nke toluene na mmanya isopropyl. Ọ bụrụ na ịsa ahụ adịghị mma nke ukwuu, a ga-enwe ụtọ fọdụrụnụ.

Ojiji dị iche iche, otu esi ahọrọ hydroxypropyl methyl cellulose (HPMC) kwesịrị ekwesị?

- azịza: na-agwụ ike na ngwa nke nwa ntụ ntụ: ihe a chọrọ dị ala, viscosity 100000, ok, ọ dị mkpa iji chebe mmiri ka ọ dị nso. Ngwa ngwa ngwa: ihe dị elu chọrọ, nnukwu viscosity chọrọ, 150000 ka ọ ka mma. Ngwa gluu: mkpa maka ngwaahịa ngwa ngwa, nnukwu viscosity.

Kedu aha ọzọ maka hydroxypropyl methyl cellulose?

– Azịza: Hydroxypropyl MethylCellulose, Mkpọbiri dị ka HPMC ma ọ bụ MHPC, ma ọ bụ Hydroxypropyl Methyl Cellulose; Cellulose hydroxypropyl methyl ether; Hypromellose, cellulose, 2-hydroxypropyl methyl cellulose ether.

HPMC na ngwa nke Skim uwe, kedu ihe kpatara Skim uwe afụ?

Azịza: HPMC in Skim uwe , ndim, mmiri na ewu nke atọ ọrụ. Anaghị esonye na mmeghachi omume ọ bụla. Ihe na-akpata afụ: 1, oke mmiri. 2, ala adịghị akọrọ, n'elu nke oyi akwa scraping, dịkwa mfe ọnya.

N'ime na mpụta mgbidi Skim uwe usoro?

– azịza: ime mgbidi Skim uwe : calcium 800KG isi awọ calcium 150KG (starch ether, dị ọcha green, peng runtu, citric acid, polyacrylamide nwere ike tinye n'ụzọ kwesịrị ekwesị)

Mpụga mgbidi Skim uwe: ciment 350KG calcium 500KG quartz ájá 150KG latex ntụ ntụ 8-12kg cellulose ether 3KG starch ether 0.5kg osisi eriri 2KG

Kedu ihe dị iche n'etiti HPMC na MC?

– Azịza: MC bụ methyl cellulose, nke e mere nke cellulose ether site a usoro nke mmeghachi omume na methane chloride dị ka etherifying gị n'ụlọnga mgbe nụchara anụcha owu na-emeso na alkali. N'ozuzu, ogo nke nnọchi bụ 1.6 ~ 2.0, na solubility dịgasị iche na ogo nke nnọchi. Ọ bụ nke nonionic cellulose ether.

(1) Njide mmiri nke methyl cellulose na-adabere na ego mgbakwunye ya, viscosity, urughuru mma na mgbasa ozi. N'ozuzu tinye nnukwu ego, obere mma, viscosity, ọnụ ọgụgụ njide mmiri dị elu. N'ime ha, ọnụọgụ nke mgbakwunye nwere mmetụta kachasị na njide mmiri, na viscosity adịghị adabere na njide mmiri. The mgbasa ọnụego tumadi na-adabere n'elu mgbanwe ogo na urughuru fineness nke cellulose ahụ. N'ime ọtụtụ cellulose ethers dị n'elu, methyl cellulose na hydroxypropyl methyl cellulose ọnụ ọgụgụ njide mmiri dị elu.

(2) Methyl cellulose bụ soluble na mmiri oyi, nke siri ike igbari na mmiri ọkụ. Ya aqueous ngwọta bụ nnọọ ike n'ime pH = 3 ~ 12. Ọ nwere ezigbo ndakọrịta na starch, guanidine chịngọm na ọtụtụ surfactants. Gelation na-eme mgbe okpomọkụ ruru ogo gelation.

(3) Mgbanwe nke okpomọkụ ga-emetụta oke njide mmiri nke methyl cellulose. N'ozuzu, ka okpomọkụ dị elu, na-akawanye njọ njigide mmiri. Ọ bụrụ na okpomọkụ nke ngwa agha gafere 40 ℃, mmiri na-ejide methyl cellulose ga-akawanye njọ, nke na-emetụta constructability nke ngwa agha.

(4) Methyl cellulose nwere mmetụta doro anya na constructability na adhesion nke ngwa agha. "Adhesion" ebe a na-ezo aka na adhesion nke onye ọrụ chere n'etiti ngwá ọrụ na mgbidi mgbidi, ya bụ nkwụsị nke ngwa agha. Adhesion buru ibu, nkwụsị nke mgbochi nke ngwa agha buru ibu, ike nke ndị ọrụ chọrọ na usoro iji mee ihe dịkwa ukwuu, na-ewu ngwa agha adịghị mma. Na ngwaahịa ether cellulose, adhesion nke methyl cellulose dị n'ogo dị oke ala.

HPMC hydroxypropyl methyl cellulose, a nụchara anụcha site owu mgbe alkali ọgwụgwọ, na propylene oxide na chloromethane dị ka etherifying gị n'ụlọnga, site a usoro mmeghachi omume na mere nke na-abụghị ionic cellulose agwakọta ether. Ogo nke nnọchi bụ n'ozuzu 1.2 ~ 2.0. Njirimara ya na-adịgasị iche na oke nke methoxy na hydroxypropyl ọdịnaya.

(1) Hydroxypropyl methyl cellulose dị mfe soluble na mmiri oyi, nke siri ike igbari na mmiri ọkụ. Otú ọ dị, o doro anya na okpomọkụ gelation ya na mmiri ọkụ dị elu karịa nke methyl cellulose. Solubility nke methyl cellulose na mmiri oyi ka emekwara nke ọma.

(2) Viscosity nke hydroxypropyl methyl cellulose na-ejikọta ya na arọ molekụla ya, ma dị elu nke ịdị arọ molecular, otú ahụ ka viscosity dị elu. Okpomọkụ na-emetụtakwa viscosity. Viscosity na-ebelata ka okpomọkụ na-abawanye. Ma mmetụta ya viscosity elu okpomọkụ dị ala karịa nke methyl cellulose. Ngwọta ahụ kwụsiri ike mgbe echekwara ya na ụlọ okpomọkụ.

(3) Hydroxypropyl methyl cellulose kwụsiri ike na acid na ntọala, na ngwọta mmiri ya kwụsiri ike na pH = 2 ~ 12. Caustic soda na mmiri lime enweghị mmetụta dị nta na akụrụngwa ya, mana alkali nwere ike mee ka ọnụego mgbasa ya dịkwuo elu ma melite viscosity. Hydroxypropyl methyl cellulose kwụsiri ike na nnu n'ozuzu ya, ma mgbe ntinye nke ngwọta nnu dị elu, viscosity nke hydroxypropyl methyl cellulose ngwọta na-emekarị ka ọ dịkwuo elu.

(4) Njide mmiri nke hydroxypropyl methyl cellulose na-adabere na nhazi ya na viscosity, na ọnụ ọgụgụ njide mmiri nke hydroxypropyl methyl cellulose dị elu karịa nke methyl cellulose n'otu usoro ọgwụgwọ.

(5) Hydroxypropyl methyl cellulose nwere ike ịgwakọta ya na mmiri-soluble polymer ogige ka edo edo, elu viscosity ngwọta. Dị ka mmanya polyvinyl, starch ether, akwukwo nri gluu na na.

(6) Nrapanye nke hydroxypropyl methyl cellulose na ngwa ngwa owuwu dị elu karịa nke methyl cellulose.

(7) Hydroxypropyl methyl cellulose nwere nguzogide enzyme dị mma karịa methyl cellulose, na ihe ngwọta ya nwere ike imebi enzyme dị ala karịa nke methyl cellulose.

Kedu ihe a ga-akwụ ụgwọ maka ngwa bara uru gbasara mmekọrịta dị n'etiti viscosity na okpomọkụ nke HPMC?

Azịza: viscosity nke HPMC na-adaba na ọnọdụ okpomọkụ, ya bụ, viscosity na-abawanye na mbelata okpomọkụ. Mgbe anyị na-ekwu maka viscosity nke ngwaahịa, anyị na-ekwu maka viscosity nke 2% nke ngwaahịa na mmiri na 20 degrees Celsius.

Na ngwa bara uru, na mpaghara nwere nnukwu ọdịiche okpomọkụ n'etiti oge okpomọkụ na oyi, a na-atụ aro ka ị jiri obere viscosity dị ntakịrị n'oge oyi, nke na-eme ka ọ dịkwuo mma n'ịrụ ụlọ. Ma ọ bụghị ya, mgbe okpomọkụ dị ala, viscosity nke cellulose ga-abawanye, na mgbe ọ na-ehichapụ, mmetụta ahụ ga-adị arọ.

Ọkara viscosity: 75000-100000 bụ nke ejiri maka putty

Ihe kpatara ya: ezigbo njide mmiri

Nnukwu viscosity: HPMC 150000-200000 bụ nke a na-eji maka polystyrene urughuru mkpuchi ngwa agha gluu ntụ ntụ na ngwa mkpuchi mkpuchi vitrified.

Ihe kpatara ya: elu viscosity, ngwa agha adịghị mfe ịdaba, na-asọba na-asọba, meziwanye ihe owuwu ahụ.

Ma n'ozuzu na-ekwu okwu, na elu nke viscosity, mma na mmiri njigide, otú ọtụtụ akọrọ ngwa agha ụlọ ọrụ, na-atụle na-eri, na-eji ọkara viscosity HPMC cellulose (75000-100000) dochie ọkara na ala viscosity HPMC cellulose (20000-40000) iji belata. ọnụ ọgụgụ nke mgbakwunye.