Ọkwa owuwu ụlọ (HPMC) Hydroxypropyl methyl cellulose
Ngwakọta simenti agwakọtara abụrụla akụkụ dị oke mkpa nke ụlọ ọrụ ngwa agha na Global ma na-arụ ọrụ dị mkpa n'ihi nkwalite ahịa na nkwado mba nke amụma.Na mmepe nke ngwa agha, cellulose ether bụ onye na-eme ihe ike.
Ngwa ngwa ngwa ngwa na-achọ akụ na ụba nke ọkwa ciment dị ntakịrị, mana ihe ndị achọrọ maka ịrụ ọrụ ya na akụrụngwa ịgbasa igwe ka dị elu, yabụ grading ájá na mgbakwunye dị mkpa.Na mgbakwunye, ngwa n'ibu ga-aghọ a doro anya ọchịchọ nke mmepe nke njikere-agwakọta ngwa agha, cellulose ether ga-eme ka n'ibu ngwa o kwere omume.
Njirimara ngwaahịa
Mee ka agụụ mmiri dịkwuo elu.
Njide mmiri dị elu, na-agbatị oge ọrụ nke ihe ahụ, melite arụmọrụ arụ ọrụ, zere ihe omume nke crusting, ma nyere aka melite ike ígwè ọrụ nke ihe.
Ịrụ ọrụ nke ọma na-arụ ọrụ, na-enye lubrication na udidi edo edo, nke mere na elu nke ihe ahụ dị mfe ihichapụ, si otú ahụ na-emeziwanye ihe owuwu ụlọ, ma melite nguzogide cracking nke putty.
Melite homogeneity, ma kwalite nguzogide mgbaba kwụ ọtọ.
HPMC maka nrapado tile
Taịlị seramiiki nwere arụmọrụ dị elu yana ịrụ ọrụ dị oke mma mgbe etinyere ya na mkpụrụ dị iche iche.Nguzogide skid na oge mmeghe ka mma bụ isi ihe na-eme ka mma nrapado chọrọ.
HPMC maka mgbidi putty
HPMC bụ ihe na-abụghị ionic cellulose ether mere si eke owu eriri n'okpuru usoro nhazi kemịkal.Ọ bụ odorless, keenweghiuto na-abụghị egbu egbu ọcha ntụ ntụ, nwere ike etisasịwo na nkịtị mmiri na-etolite a transperent viscous ngwọta na Njirimara nke ndim,-ekekọta, dispersing, emulsifying, film mkpuchi, suspending, absorbing, gelling, mmiri njigide na colloid nchebe.
cellulose ethers na-enye ihe ndị a magburu onwe ya na ngwa agha:
一Emebere ike wet na mkpụrụ
一 Ikike njide mmiri dị elu
一 ezigbo spraying na pumping arụmọrụ
一 Melite hydration ciment site na ijikọ ike
Nkọwa ngwaahịa
1) Ọdịdị: HPMC bụ nonionic cellulose ether, ọcha grayish-acha ọcha ntụ ntụ ma ọ bụ granule, odorless na flavorless, soluble na mmiri oyi, glacial acetic acid, ethanol, methanol na propylene glycol, ubé soluble na acetone dabere n'ókè nke nnọchi, ihe fọrọ nke nta ka ọ bụrụ ihe a na-adịghị ahụkebe na mmiri ọkụ, ethylene glycol na toluene.A na-agbaze HPMC na ngwakọta nke methanol 10% na 90% methylene chloride iji mepụta ngwọta colloidal.
2) Ngwọta nke HPMC nwere ọrụ elu, nghọta dị elu, na arụmọrụ kwụsiri ike.Mgbe ikpo ọkụ na ụfọdụ okpomọkụ, ngwọta na-aghọ urukpuru ma ọ bụ mepụta flocculent gel.Otú ọ dị, ngwọta na-apụta ìhè ọzọ mgbe jụrụ oyi.Ụdị HPMC dị iche iche nwere okpomọkụ gelation dị iche iche.Solubility dị iche na viscosity.Na ala viscosity, elu solubility ọ nwere.Ụdị HPMC dị iche iche dị iche iche na ụfọdụ ihe onwunwe na mmiri adịghị emetụta pH.
3) nha urughuru: 100% ngafe ọnụego na 80 ntupu.
4) Njupụta pụtara ìhè: 0.25-0.70 g/mL (na-emekarị ihe dị ka 0.5 g / mL), njupụta kpọmkwem 1.26-1.31mL.
5) Agba mgbanwe okpomọkụ: 190-200 ° C;Carbonization okpomọkụ:280-300C.
6) Esemokwu dị n'elu: 42-56 dyn / cm (2% ngwọta mmiri).
7) The elu methoxy ọdịnaya na HPMC, ala gelation okpomọkụ, na elu solubility na mmiri na elu ọrụ.
8) HPMC nwere ụfọdụ ndị ọzọ e ji mara, dị ka ihe atụ, ndim ihe onwunwe, pH kwụsie ike, njigide nke mmiri, magburu onwe film-akpụ ihe onwunwe, ezi gbasasịrị na adhesion ikike.
Mpempe nkọwa
| Ihe | Index |
| Ọdịnaya nke Methoxyl (%) | 24.0-30.0 |
| Ọdịnaya nke Hydroxy propyl (%) | 7.0-12.0 |
| Okpomọkụ nke gelation | 54 ℃ - 90 ℃ |
| Mmiri | 5% kacha |
| Ash | 5% kacha |
| PH uru | 6—8 |
| Ọdịdị | Ọcha ntụ ntụ |
| Mma | 80-100 nchara |
| Viscosity | 100 ruo 200000 enwere ike ịhazi ya |
