1. Kedu ihe bụ isi eji hydroxypropyl methylcellulose eme ihe?
A na-eji HPMC eme ihe n'ọtụtụ ebe n'ihe gbasara ụlọ, ihe mkpuchi, resin sịntetik, seramiiki, ọgwụ, nri, ákwà, ọrụ ugbo, ihe ịchọ mma, ụtaba na ụlọ ọrụ ndị ọzọ. Enwere ike kewaa HPMC n'ime ọkwa ụlọ ọrụ mmepụta ihe, ọkwa nri na ọkwa ọgwụ dịka ojiji ya si dị.
2. E nwere ọtụtụ ụdị hydroxypropyl methylcellulose. Kedu ihe dị iche n'etiti ha?
Enwere ike kewaa HPMC n'ụdị ozugbo (ụdị mgbakwunye "S") na ụdị ọkụ na-agbaze. Ngwaahịa ụdị ozugbo na-agbaze ngwa ngwa na mmiri oyi ma na-apụ n'anya n'ime mmiri. N'oge a, mmiri mmiri ahụ enweghị viscosity n'ihi na HPMC na-agbasa naanị na mmiri ma enweghị ezigbo ngwọta. Mgbe ihe dị ka nkeji abụọ gasịrị (na-akpali) viscosity nke mmiri mmiri ahụ na-abawanye nwayọ nwayọ ma mepụta viscosity viscous colloid doro anya. Ngwaahịa ndị na-agbaze ọkụ, na mmiri oyi, nwere ike ịgbasa ngwa ngwa na mmiri ọkụ ma pụọ na mmiri ọkụ. Mgbe okpomọkụ dara ruo na okpomọkụ ụfọdụ (dịka okpomọkụ gel nke ngwaahịa ahụ si dị), viscosity ahụ na-apụta nwayọ nwayọ ruo mgbe e guzobere colloid doro anya na viscous.
3. Kedu ụzọ e si eji hydroxypropyl methylcellulose solution eme ihe?
1. Enwere ike itinye ụdị niile na ihe ahụ site na ngwakọta akọrọ;
2. Ọ dị mkpa ka etinyere ya ozugbo na mmiri ọkụ nkịtị. Ọ kacha mma iji ụdị mgbasa mmiri oyi. Mgbe etinyere ya, ọ na-erukarị oke n'ime nkeji iri ruo iri itoolu (gwakọta, kpalite, kpalite)
3. Maka ụdị nkịtị, jiri mmiri ọkụ gwakọta ma gbasaa ya, wee tinye mmiri oyi ka ọ gbazee mgbe ị gwakọtara ma jụọ oyi.
4. Ọ bụrụ na ngwakọta ma ọ bụ mkpuchi emee n'oge ịgbaze, ọ bụ n'ihi na mgbagharị ahụ ezughi oke ma ọ bụ na etinyere ihe nlereanya nkịtị ozugbo na mmiri oyi. N'oge a, kpalie ya ngwa ngwa.
5. Ọ bụrụ na afụfụ na-apụta n'oge a na-agbaze, a pụrụ ịhapụ ha ruo awa 2-12 (oge a kapịrị ọnụ dabere na nha anya nke ihe ngwọta ahụ) ma ọ bụ wepụ ya site na mwepụta vacuum, nrụgide, wdg, a pụkwara itinye oke ihe na-eme ka ihe ghara ịdị ọcha.
4. Kedu otu esi ekpebi ịdị mma nke hydroxypropyl methylcellulose n'ụzọ dị mfe na n'ụzọ amamihe?
1. Ịcha ọcha. Ọ bụ ezie na ịcha ọcha enweghị ike ikpebi ma HPMC ọ dị mma ma ọ bụ na ọ dịghị mma, itinye ihe ndị na-eme ka ọ dị ọcha n'oge mmepụta ga-emetụta ịdị mma ya, ọtụtụ ngwaahịa dị mma nwere ezigbo ịcha ọcha.
2. Ịdị mma: Ịdị mma HPMC bụ n'ozuzu nha 80 na nha 100, n'okpuru 120, ka mma karịa.
3. Mbufe ọkụ: HPMC na-emepụta colloid doro anya n'ime mmiri. Lee nnyefe ọkụ. Ka nnyefe ọkụ ahụ buru ibu, otú ahụ ka ikike ikuku ahụ si adị mma, nke pụtara na enweghị ihe ndị na-agbaze na ya. Ihe na-eme ka ọkụ ahụ dị mma n'ozuzu ya, ihe na-eme ka ọkụ ahụ dị jụụ ga-ewepụtakwa ụfọdụ. Mana a pụghị ikwu na àgwà mmepụta nke kettles kwụ ọtọ ka mma karịa nke kettles kwụ ọtọ. E nwere ọtụtụ ihe na-ekpebi ịdị mma nke ngwaahịa ahụ.
4. Oke ike ndọda pụrụ iche: Ka oke ike ndọda kpọmkwem si dị, otú ahụ ka ọ na-adị arọ karị. Ka oke ike ndọda kpọmkwem si dị, otú ahụ ka oke ike ndọda hydroxypropyl si dị elu. N'ozuzu, ka oke ike ndọda hydroxypropyl si dị elu, otú ahụ ka njide mmiri si ka mma.
5. Ego ole ka e ji hydroxypropyl methylcellulose mee ihe na ntụ ntụ putty?
Ọnụọgụ HPMC eji eme ihe n'ezie dịgasị iche site n'otu ebe ruo ebe ọzọ, n'ozuzu ya, ọ dị n'etiti kilogram 4-5, dabere na gburugburu ebe obibi ihu igwe, okpomọkụ, ịdị mma nke calcium ash mpaghara, usoro ntụ ntụ putty na ihe ndị ahịa chọrọ.
6. Gịnị bụ viscosity nke hydroxypropyl methylcellulose?
Ntụ ntụ putty na-eri RMB 100,000, ebe mmanụ ụgbọala nwere ihe achọrọ dị elu. Ọ na-efu RMB 150,000 iji dị mfe iji. Ọzọkwa, ọrụ HPMC dị mkpa bụ idobe mmiri, wee soro ya mee ka ọ dị arọ. Na ntụ ntụ putty, ọ bụrụhaala na idobe mmiri dị mma ma viscosity dị ala (7-8), ọ ga-ekwe omume. N'ezie, ka viscosity ahụ na-abawanye, otú ahụ ka idobe mmiri dị mma. Mgbe viscosity ahụ karịrị 100,000, viscosity ahụ enweghị mmetụta dị ukwuu na idobe mmiri.
7. Kedu ihe bụ isi ihe na-egosi hydroxypropyl methylcellulose?
Ọdịnaya hydroxypropyl
Ọdịnaya methyl
viscosity
ntụ
mbelata ibu akọrọ
8. Kedu ihe ndị bụ isi e ji hydroxypropyl methylcellulose mee?
Isi ihe eji emepụta HPMC: owu a nụchara anụcha, methyl chloride, propylene oxide, ihe ndị ọzọ e ji emepụta ihe, caustic soda, na acid toluene.
9. Ojiji na ọrụ bụ isi nke hydroxypropyl methylcellulose na ntụ ntụ putty, ọ bụ kemịkalụ?
N'ime ntụ ntụ putty, ọ na-arụ ọrụ atọ dị mkpa: ịkacha, idobe mmiri na ịrụpụta ihe. Ịkacha nwere ike ime ka cellulose sie ike ma rụọ ọrụ nkwụsịtụ, na-eme ka ngwọta ahụ dị otu ma na-ebelata ma na-egbochi ịda mba. Idobe mmiri: Mee ka ntụ ntụ putty kpọọ nkụ nwayọ nwayọ ma nyere calcium isi awọ aka imeghachi omume n'okpuru ọrụ mmiri. Ike ịrụ ọrụ: Cellulose nwere mmetụta mmanụ, nke na-eme ka ntụ ntụ putty nwee ike ịrụ ọrụ nke ọma. HPMC anaghị esonye na mmeghachi omume kemịkalụ ọ bụla ma na-arụ naanị ọrụ nkwado.
10. Hydroxypropyl methylcellulose bụ cellulose ether nke na-abụghị ionic, yabụ kedu ụdị nke na-abụghị ionic?
N'ikwu ya n'ozuzu, ihe ndị na-adịghị arụ ọrụ anaghị esonye na mmeghachi omume kemịkalụ.
CMC (carboxymethylcellulose) bụ cationic cellulose ma ga-aghọ tofu dropg mgbe e tinyere ya na calcium ash.
11. Kedu ihe metụtara okpomọkụ jel nke hydroxypropyl methylcellulose?
Okpomọkụ jel nke HPMC metụtara ọdịnaya methoxyl ya. Ka ọdịnaya methoxyl dị ala, otú ahụ ka okpomọkụ jel dị elu.
12. Enwere njikọ dị n'etiti ntụ ntụ putty na hydroxypropyl methylcellulose?
Nke a dị mkpa! HPMC anaghị ejigide mmiri nke ọma ma ọ ga-eme ka ntụ ntụ ghara ịdị.
13. Kedu ihe dị iche n'usoro mmepụta ihe dị n'etiti mmiri oyi na mmiri ọkụ nke hydroxypropyl methylcellulose?
A na-agbasa ụdị HPMC oyi na-agbaze mmiri ngwa ngwa na mmiri oyi mgbe ejiri glyoxal gwọọ elu, mana ọ naghị agbaze n'ezie. Viskeletị ahụ na-arị elu, ya bụ, ọ na-agbaze. A naghị eji glyoxal agwọ ụdị agbaze ọkụ ahụ. Glyoxal buru ibu ma na-agbasa ngwa ngwa, mana ọ na-agbaze nwayọ nwayọ ma nwee obere olu, na nke ọzọ.
14. Gịnị bụ isi nke hydroxypropyl methylcellulose?
A na-eji toluene na isopropyl alcohol emepụta HPMC dịka ihe mgbaze. Ọ bụrụ na a sachaghị ya nke ọma, isi ga-esi ntakịrị. (Nkwụsị na imegharị ihe bụ isi ihe na-akpata isi ísì)
15. Kedu otu esi ahọrọ hydroxypropyl methylcellulose kwesịrị ekwesị maka ojiji dị iche iche?
Ntụ ntụ putty: ihe achọrọ maka idobe mmiri dị elu na ịdị mma owuwu dị mma (akara akwadoro: 7010N)
Ngwa agha nkịtị nke e ji simenti mee: njide mmiri dị elu, iguzogide okpomọkụ dị elu, viscosity ozugbo (ọkwa akwadoro: HPK100M)
Ngwa mmado owuwu: ngwaahịa ozugbo, oke viscosity. (Aka akwadoro: HPK200MS)
Ngwa agha Gypsum: njigide mmiri dị elu, viscosity dị ala-ọkara, viscosity ozugbo (ọkwa akwadoro: HPK600M)
16. Gịnị bụ aha ọzọ nke hydroxypropyl methylcellulose?
A makwaara HPMC ma ọ bụ MHPC dị ka hydroxypropyl methylcellulose na hydroxypropyl methylcellulose ether.
17. Itinye hydroxypropyl methylcellulose n'ime ntụ ntụ putty. Gịnị na-eme ka ntụ ntụ putty ghọọ ụfụfụ?
HPMC na-arụ ọrụ atọ dị mkpa na ntụ ntụ putty: ịka mma, idobe mmiri na owuwu ya. Ihe kpatara afụfụ bụ:
1. Tinye oke mmiri.
2. Ọ bụrụ na ala ya akpọghị nkụ, ịkpụcha akwa ọzọ n'elu ya ga-akpata ọnya ngwa ngwa.
18. Gịnị bụ ihe dị iche n'etiti hydroxypropyl methylcellulose na MC:
A na-eji owu a nụchara anụcha eme MC, methyl cellulose, site na owu a nụchara anụcha mgbe a gwọchara alkali, jiri methane chloride mee ihe dị ka ihe na-eme ka etherifying dị ka ihe na-eme ka ether dị n'ime ya, yana usoro mmeghachi omume iji mepụta cellulose ether. Ogo nnọchi anya izugbe bụ 1.6-2.0, ike ịgbaze nke ọkwa nnọchi dị iche iche dịkwa iche. Ọ bụ cellulose ether na-abụghị ionic.
(1) Njide mmiri nke methylcellulose dabere na ọnụọgụ mgbakwunye ya, viscosity, ịdị mma nke ihe dị n'ime ya na ọnụego mgbaze. N'ozuzu, ọnụọgụ mgbakwunye buru ibu, ịdị mma dị obere, viscosity dị elu, ọnụego nchekwa mmiri dịkwa elu. Ọnụọgụ mgbakwunye nwere nnukwu mmetụta na ọnụego nchekwa mmiri, viscosity enweghịkwa ihe jikọrọ ya na ọnụego nchekwa mmiri. Ọnụọgụ mgbasa dabere na ogo mgbanwe elu na ịdị mma nke ihe dị n'ime ya. N'ime cellulose ethers dị n'elu, methylcellulose na hydroxypropylmethylcellulose nwere ọnụego nchekwa mmiri dị elu.
(2) Enwere ike ịgbaze methyl cellulose na mmiri oyi, mana ọ ga-esiri ike ịgbaze na mmiri ọkụ. Mmiri mmiri ya na-adịgide nke ọma na oke pH = 3-12, ọ na-adabakwa na starch na ọtụtụ surfactants. Mgbe okpomọkụ ruru jel ahụ Mgbe okpomọkụ jel ahụ na-abawanye, jel ahụ ga-apụta.
(3) Mgbanwe okpomọkụ ga-emetụta oke methylcellulose iji chekwaa mmiri nke ukwuu. N'ozuzu, ka okpomọkụ dị elu, otú ahụ ka ọnụego nchekwa mmiri si ka njọ. Ọ bụrụ na okpomọkụ moto gafere ogo 40, njigide mmiri nke methylcellulose ga-emebi nke ukwuu, na-emetụta nnukwu nrụpụta moto ahụ.
(4) Methylcellulose nwere mmetụta dị ukwuu n'otú e si arụ na otú e si adụkọta ụrọ. Nrapado ebe a na-ezo aka na njikọ dị n'etiti ngwa ọrụ onye ọrụ na ihe e ji arụ ọrụ na mgbidi, ya bụ, iguzogide nkedo nke ụrọ. Nrapado dị elu, iguzogide nkedo nke ụrọ dị elu, ike ndị ọrụ chọrọ n'oge eji ya dịkwa elu, yabụ arụmọrụ owuwu nke ụrọ ahụ adịghị mma.
Oge ozi: Jenụwarị-31-2024