Hydroxypropyl Methyl Cellulose HPMC
1. Ọ nwere nkwụsi ike maka acid na alkali, na ngwọta mmiri ya dị nnọọ ike na pH = 2 ~ 12 nso. Caustic soda na mmiri lime adịghị enwe mmetụta dị ukwuu na arụmọrụ ya, mana alkali nwere ike mee ka ọnụego mgbasa ya dị ngwa ma mee ka viscosity dịkwuo ntakịrị.
2. HPMCbụ onye na-ejigide mmiri nke ọma makangwa agha akọrọusoro, nke nwere ike ibelata ọnụego nke ngwa agha secretion na stratification, melite cohesiveness nke ngwa agha, n'ụzọ dị irè na-egbochi guzobe nke ngwa agha plastic cracks, na ibelata ngwa agha plastic cracking index.
3, ọ bụ ihe na-abụghị ionic na non-polymeric electrolyte, nke na-akwụsi ike na ngwọta mmiri nke salts metal na organic electrolytes, ma nwee ike ịgbakwunye ya na ihe owuwu ụlọ ruo ogologo oge iji hụ na ọ dị mma.
4, arụ ọrụ nke ngwa agha na-emeziwanye nke ọma, ngwa agha ahụ yiri ka ọ nwere "mmanụ mmanu", nwere ike ime ka mgbidi mgbidi jupụta, dị mma n'elu, nke mere na ngwa agha na njikọ ntọala siri ike, ma nwee ike ịgbatị oge ọrụ.
Njide mmiri
Nghọta nke ọgwụgwọ dị n'ime na-enyere aka ịkwalite ike ogologo oge, igbochi ọbara ọgbụgba, igbochi nkwụsị ngwa agha, nkwụsịtụ na mmụba nke nkwụsị nke ngwa agha.
Na-ejupụta
Gbochie nkewa, kwalite otu ngwa ngwa, kwalite ike njikọ mmiri, ma melite arụmọrụ mgbochi.
Ntinye ikuku
Na-emeziwanye arụmọrụ ngwa agha. N'ịbụ ndị dị elu viscosity nke cellulose, ogologo ogologo yinye molekụla, otú ahụ ka mmetụta ntinye ikuku pụta ìhè karị.
Coagulation na-egbu oge
Jide n'aka na njide mmiri gbatịa oge mmeghe nke ngwa agha
Hydroxypropyl Starch ether
1. Ihe dị elu hydroxypropyl dị na starch ether na-enye usoro ahụ ike hydrophilicity, na-atụgharị mmiri n'efu n'ime mmiri agbụ, nke na-arụ ọrụ dị mma na-ejigide mmiri.
2. Starch ethers nwere dị iche iche hydroxypropyl ọdịnaya nwere dị iche iche ikike iji nyere cellulose aka na-ejigide mmiri na otu onunu ogwu.
3. The nnọchi nke hydroxypropyl otu enwekwu ọzịza ogo na mmiri na compresses ohere nke urughuru eruba, si otú ọbọ mmetụta nke ndim na viscosity na-abawanye.
Thixotropic mmanu mmanu
Starch ether na-agbasa ngwa ngwa na ngwa agha usoro, na-agbanwe rheology nke ngwa agha na-enye ya thixotropy. Mgbe a na-etinye ike mpụga, a ga-ebelata viscosity nke ngwa agha ahụ, na-eme ka owuwu dị mma na mgbapụta, na-enye ya thixotropy. Ọ nwere mmetụta dị nro. Mgbe a napụrụ ike mpụga, viscosity na-abawanye, na-enye ngwa agha ahụ nke ọma na-eguzogide sagging. N'ime ntụ ntụ putty, ọ nwere uru nke imeziwanye ọkụ nke mmanụ mmanụ na-egbuke egbuke.
Mmetụta njide mmiri inyeaka
Starch ether n'onwe ya nwere akụrụngwa hydrophilic n'ihi ọrụ nke otu hydroxypropyl na sistemụ. Mgbe ejikọtara ya na cellulose ma ọ bụ gbakwunyere na ụfọdụ ego na ngwa agha ahụ, ọ nwere ike ịbawanye njigide mmiri ruo n'ókè ụfọdụ ma melite oge ihicha elu.
Mgbochi sag na mgbochi-slip
Mmetụta mgbochi sag magburu onwe ya na mmetụta ịkpụzi.
Polima ntụ ntụ na-agbanwe agbanwe
1. Melite ọrụ nke ngwa agha.ntụ ntụ nwere ike agbasar or RDPA na-agbasasị akụkụ ahụ na usoro ahụ, na-enye usoro ahụ ezigbo mmiri mmiri ma na-eme ka ọrụ na ịrụ ọrụ nke ngwa agha dịkwuo mma.
2. Meziwanye ike njikọta nke ngwa agha. Mgbe a chụsasịrị ntụ ntụ rọba n'ime ihe nkiri, ihe inorganic na ihe ndị dị na ngwa ngwa nwere ike jikọta ọnụ. Enwere ike iche na simenti na ájá dị na ngwa ngwa bụ ọkpụkpụ, na ntụ ntụ latex na-etolite njikọ. Njikọ ahụ na-abawanye, ike na-abawanye, na-eji nwayọọ nwayọọ na-emepụta ihe nhazi.
3. Meziwanye nguzogide ihu igwe nke ngwa agha. Freeze-thaw eguzogide latex ntụ ntụ bụ thermoplastic resin nwere ezigbo mgbanwe, nke nwere ike ime ka ngwa agha ahụ meghachi omume na mgbanwe mpụga na oyi na okpomọkụ, na-egbochi ngwa agha ahụ nke ọma n'ihi mgbanwe okpomọkụ.
4. Melite ike mgbanwe nke ngwa agha. Na polymer na ciment slurry na-etolite uru na-akwado. Mgbe mgbawa na-akpata site na ndị agha mpụga, polymer nwere ike ịgbatị mgbawa ahụ ma gbochie mgbasawanye nke mgbawa ahụ, si otú ahụ na-eme ka ọkpụkpụ siri ike na nrụrụ nke ngwa agha dịkwuo mma.
Oge nzipu: Mar-06-2024