Ihe ngwọta HPMC

1, kedu ihe bụ isi ojiji nke hydroxypropyl methyl cellulose (HPMC)?

Azịza :A na-eji HPMC eme ihe n'ọtụtụ ebe na ihe owuwu ụlọ, mkpuchi, resins sịntetik, ceramics, ọgwụ, nri, textile, ọrụ ugbo, ịchọ mma, ụtaba na ụlọ ọrụ ndị ọzọ.Enwere ike kewaa HPMC n'ime: ọkwa ihe owuwu, ọkwa nri na ọkwa ahụike dịka iji ya si dị.Ka ọ dị ugbu a, ihe a na-eme n'ụlọ na-abụkarị ọkwa ihe owuwu, na ọkwa ihe owuwu, ọnụ ọgụgụ nke ntụ ntụ dị ukwuu, ihe dịka 90% na-eji ntụ ntụ eme ihe, ndị ọzọ na-eji ciment mortar na gluu.

2, hydroxypropyl methyl cellulose (HPMC) kewara n'ụdị dị iche iche, gịnị bụ ọdịiche dị n'etiti ojiji ya?

Azịza :HPMC nwere ike kewara n'ime ngwa ngwa na okpomọkụ soluble, ngwa ngwa ngwaahịa, na mmiri oyi ngwa ngwa chụsasịrị, okụrede na mmiri, n'oge a mmiri mmiri enweghị viscosity, n'ihi na HPMC bụ naanị chụgara na mmiri, ọ dịghị ezigbo mgbasa.Ihe dị ka nkeji 2, viscosity nke mmiri mmiri na-eji nwayọọ nwayọọ na-abawanye, na-akpụ a viscos colloid transperent.Okpomọkụ soluble ngwaahịa, na mmiri oyi agglomeration, nwere ike ịbụ na mmiri ọkụ, ngwa ngwa gbasasịa, na-apụ n'anya na mmiri ọkụ, ruo mgbe okpomọkụ tụlee ka ụfọdụ okpomọkụ, viscosity ji nwayọọ nwayọọ na-apụta, ruo mgbe e guzobere transperent viscous colloid.Okpomọkụ soluble ụdị nwere ike na-eji na putty ntụ ntụ na ngwa agha, na mmiri mmiri gluu na mkpuchi, nwere ike ịpụta agglomeration onu, enweghị ike iji.Ngwa ngwa igbari nlereanya, ngwa akporo bụ ole na ole wider, na-agwụ ike na nwa ntụ ntụ na ngwa agha, na na mmiri mmiri gluu na mkpuchi, ihe niile nwere ike ji mee ihe, enweghị ihe taboo.

3, hydroxypropyl methyl cellulose (HPMC) mgbasa ụzọ nwere ndị?

- azịza: usoro mgbasa mmiri ọkụ: n'ihi na HPMC adịghị agbaze na mmiri ọkụ, yabụ enwere ike ịgbasa HPMC n'oge na mmiri ọkụ, wee gbazee ngwa ngwa mgbe ọ dị jụụ, a na-akọwa ụzọ abụọ ahụkarị dị ka ndị a:

1) Wejuo akpa ahụ na mmiri ọkụ dị ka ịchọrọ ma kpoo ya ruo ihe dịka 70 ℃.Hydroxypropyl methyl cellulose na-eji nwayọọ nwayọọ na-agbakwunyere n'okpuru nwayọọ edemede, na HPMC sere n'elu mmiri, na mgbe ahụ nke nta nke nta Nleta a slurry, nke na mma n'okpuru edemede.

2) Tinye 1/3 ma ọ bụ 2/3 nke mmiri achọrọ n'ime akpa wee kpoo ya ruo 70 ℃.Gbasaa HPMC dị ka usoro 1) iji kwadebe slurry mmiri ọkụ;Mgbe ahụ gbakwunye mmiri oyi fọdụrụ na mmiri ọkụ slurry ma mee ka ngwakọta ahụ dị jụụ mgbe ọ kpalitere.

Usoro ngwakọta ntụ ntụ: HPMC ntụ ntụ na ọnụ ọgụgụ buru ibu nke ihe ndị ọzọ na-eme ntụ ntụ, jikọta ya na blender, wee gbakwunye mmiri ka ọ gbazee, n'oge a HPMC nwere ike igbari, ma ọ bụghị agglomerate, n'ihi na nkuku ọ bụla, naanị obere ntụ ntụ HPMC, mmiri. ga-agbaze ozugbo.– Putty ntụ ntụ na ngwa agha na-emepụta na-eji usoro a.[Hydroxypropyl methyl cellulose (HPMC) ejiri mee ihe dị ka onye na-eme ihe na-ekpo ọkụ na onye na-ejigide mmiri na ngwa ngwa putty powder.

4, esi chọpụta àgwà hydroxypropyl methyl cellulose (HPMC) dị mfe na kensinammuo?

Azịza: (1) ọcha: ọ bụ ezie na ịcha ọcha enweghị ike ikpebi ma HPMC ọ dị mma, ma ọ bụrụ na etinye ya na usoro mmepụta ihe na-acha ọcha, ga-emetụta àgwà ya.Otú ọ dị, ọtụtụ ngwaahịa dị mma nwere ezigbo ọcha.(2) fineness :HPMC fineness bụ n'ozuzu 80 ntupu na 100 ntupu,120 nzube obere, Hebei HPMC ukwuu n'ime 80 ntupu, the fineness na fineness, n'ozuzu na-ekwu okwu, ka mma.(3) nnyefe: na hydroxypropyl methyl cellulose (HPMC) n'ime mmiri, e guzobere a transperent colloid, na-ahụ ya transmittance, ukwuu transmittance bụ mma, insoluble ihe n'ime obere.The transmittance nke vetikal reactor na-adịkarị mma, na nke kehoraizin reactor ka njọ, ma ọ pụtaghị na àgwà nke mmepụta nke vetikal reactor dị mma karịa nke kwụ ọtọ reactor.Enwere ọtụtụ ihe iji chọpụta ogo ngwaahịa.(4) Nkezi: ka oke ya buru ibu, ka ọ dị arọ ka ọ ka mma.Karia isi, n'ihi na n'ime hydroxyl propyl base ọdịnaya na-adịkarị elu, hydroxyl propyl base ọdịnaya dị elu, chebe mmiri ka ịchọọ mma.

5, hydroxypropyl methyl cellulose (HPMC) viscosity kwesịrị ekwesị?

– Azịza: na-agwụ ike na nwa ntụ ntụ dị mma ọtụtụ 100 puku, ụfọdụ ogologo nke chọrọ na ngwa agha, chọrọ 150 puku ike iji.Ọzọkwa, HPMC bụ ọrụ kachasị mkpa nke njide mmiri, nke na-esote ya.Na ntụ ntụ putty, ọ bụrụhaala na njide mmiri dị mma, viscosity dị ala (7-80 puku), ọ ga-ekwe omume, n'ezie, viscosity dị ukwuu, njigide mmiri dị n'akụkụ dị mma, mgbe viscosity karịrị karịa. 100 puku, viscosity nke njide mmiri adịghị ukwuu.

6, hydroxypropyl methyl cellulose (HPMC) ihe bụ isi oru egosi?.

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.

7, 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.

8, HPMC na ngwa nke putty powder, isi ọrụ, ma omume nke kemịkalụ?

Azịza :HPMC na putty powder, ndim, mmiri na iwu 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 putty ntụ ntụ kpoo nwayọọ nwayọọ, inyeaka calcium isi awọ n'omume mmeghachi omume mmiri.Ewu: cellulose lubrication, nwere ike ime ka putty ntụ ntụ nwere ihe owuwu dị mma.HPMC anaghị eso na mmeghachi omume kemịkalụ ọ bụla, mana ọ na-arụ naanị ọrụ nkwado.Putty ntụ ntụ na mmiri, na mgbidi, bụ mmeghachi omume nke kemịkalụ, n'ihi ọgbọ nke ihe ọhụrụ, mgbidi nke ntụ ntụ na-agbada site na mgbidi ahụ, n'ala n'ime ntụ ntụ, wee jiri ya mee ihe, adịghị mma, n'ihi na emepụtawo ihe ọhụrụ. (calcium carbonate).Isi ihe mejupụtara ntụ ntụ ntụ ntụ ntụ bụ ngwakọta nke Ca (OH) 2, CaO na obere ego CaCO3, CaO + H2O = Ca (OH) 2 — Ca (OH) 2 + CO2 = CaCO3↓ + H2O Grey calcium na mmiri na ikuku n'okpuru omume nke CO2, calcium carbonate, na HPMC naanị mmiri, na-enyere isi awọ calcium mma mmeghachi omume, ya onwe-adịghị ekere òkè ọ bụla mmeghachi omume.

9.HPMC na-abụghị ionic cellulose ether, 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.

10. Kedu ihe metụtara gel okpomọkụ nke hydroxypropyl methyl cellulose?

- Azịza: The gel okpomọkụ nke HPMC metụtara methoxyl ọdịnaya, na-ebelata methoxyl ọdịnaya ↓, elu na gel okpomọkụ.

11, putty ntụ ntụ ntụ na HPMC ọ dịghị mmekọrịta?

Azịza: putty powder drop powder tumly na uyi 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 obere mmekọrịta na HPMC, mgbe ahụ, njigide mmiri HPMC adịghị mma, ga-emekwa ka ntụ ntụ.

12, hydroxypropyl methyl cellulose mmiri oyi soluble na-ekpo ọkụ soluble na mmepụta usoro nke ihe dị iche?

– 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.

13, hydroxypropyl methyl cellulose (HPMC) isi ka ọ dị?

- 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.

14, ojiji dị iche iche, otu esi ahọrọ ezigbo hydroxypropyl methyl cellulose (HPMC)?

– azịza: na-agwụ ike na ngwa nke nwa ntụ ntụ: ihe a chọrọ bụ usụhọde, viscosity 100 puku, ok, ọ dị mkpa iji chebe mmiri nso.Ngwa ngwa ngwa: ihe dị elu chọrọ, nnukwu viscosity chọrọ, 150 puku ka mma.Ngwa gluu: mkpa maka ngwaahịa ngwa ngwa, nnukwu viscosity.

15.What bụ utu aha nke hydroxypropyl methyl cellulose?

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

16.HPMC na ngwa nke putty powder, putty powder bubble kedu ihe kpatara ya?

Azịza: HPMC na putty powder, ndim, mmiri na iwu 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.

17. 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 maka 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 nke 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.

18. Gịnị ka a ga-aṅa ntị na ngwa ngwa nke 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: 150000-200000 bụ nke a na-ejikarị maka polystyrene urughuru mkpuchi ngwa agha roba 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, elu nke viscosity, mma njigide mmiri, otú ọtụtụ akọrọ ngwa agha ụlọ ọrụ, na-atụle na-eri, na-eji ọkara viscosity cellulose (75000-100000) dochie ọkara na ala viscosity cellulose (20000-40000) iji belata ego. nke mgbakwunye.