Chii chinonzi Hydroxypropyl Methylcellulose HPMC?

Hydroxypropyl Methylcellulose HPMC, inozivikanwawo seCellulose ether, i polymer yakagadzirwa, inonyungudika nemvura inotorwa kubva muselulosi. Iyo inogadzirwa nekugadzirisa yakasikwa cellulose, inova ndiyo yekutanga dhizaini chikamu chezvirimwa, kuburikidza nenhevedzano yemakemikari maitiro.

Industrial giredhi hydroxypropyl methylcellulose inosiyaniswa ne viscosity. Kazhinji anoshandiswa aya anotevera mamakisi (maererano ne viscosity).

Low viscosity: 400 inonyanya kushandiswa kuzvidzora dhaka, asi inowanzotengeswa kunze kwenyika. Chikonzero: yakaderera viscosity, kunyangwe kuchengetwa kwemvura kwakashata, asi kuenzana kwakanaka, dhaka density yakakwirira.

Medium uye high viscosity: 20000-70000 inonyanya kushandiswa kunamatira tile, caulking agent, crack-resistant mortar, thermal insulation bonding mortar, etc. Zvikonzero: kushanda zvakanaka, mvura shoma, uye yakakwirira yematope.

Chii chinonyanya kushandiswa kwehydroxypropyl methylcellulose (HPMC)?

HPMCinoshandiswa zvakanyanya mukuvaka, machira, marezeni ekugadzira, ceramics, mushonga, chikafu, machira, kurima, zvizorwa, fodya uye mamwe maindasitiri. HPMC inogona kukamurwa kuita: kuvaka, chikafu uye mishonga. Parizvino, mazhinji ezvivakwa zvinogadzirwa mudzimba ndezvemhando yekuvaka. Mugiredhi rekuvaka, huwandu hweputty hupfu hwakakura kwazvo, inenge 90% inoshandiswa kugadzira putty poda, uye imwe yese inoshandiswa sesamende dhaka uye glue.

Kune akati wandei marudzi ehydroxypropyl methylcellulose (HPMC). Ndeupi musiyano mukushandiswa kwavo?

HPMCinogona kukamurwa kuita pakarepo-yakanyungudika uye inopisa-yakanyungudika, inokurumidza-kunyungudika zvigadzirwa. Kana inokurumidza kuparadzirwa mumvura inotonhora, inonyangarika mumvura. Panguva ino, mvura haina viscosity nekuti HPMC inongopararira mumvura uye hapana kuparara chaiko. Anenge maminetsi maviri, viscosity yemvura zvishoma nezvishoma yakava yakakura, ichigadzira yakajeka viscous colloid. Iyo inopisa-yakanyunguduka mhando yechigadzirwa, kana iri mvura inotonhora, inogona kukurumidza kuparadzirwa mumvura inopisa uye inonyangarika mumvura inopisa. Kana tembiricha inodonha kune imwe tembiricha, viscosity inoonekwa zvishoma nezvishoma kusvika yakajeka viscous colloid yaumbwa. Iyo inopisa-yakanyungudika mhando inogona kushandiswa chete mu putty poda uye dhaka. Mumvura glue uye pendi, pachava nechiitiko che clumping, chisingagoni kushandiswa. Inowanikwa mune zvakasiyana-siyana zvekushandisa, mune putty poda uye dhaka, pamwe chete mune yemvura glues uye machira. Iko hakuna contraindications.

Ndedzipi nzira dzekupedza hydroxypropyl methylcellulose (HPMC)?

Nzira yekunyungudika kwemvura inopisa: Sezvo HPMC isina kunyungudika mumvura inopisa, yekutanga HPMC inogona kuparadzirwa zvakafanana mumvura inopisa uye yobva yanyungudika nekukurumidza panguva yekutonhora. Nzira mbiri dzakajairika dzinotsanangurwa sezvizvi: 1), kuiswa mumudziyo Isa huwandu hunodiwa hwemvura inopisa uye kupisa kusvika ku70°C. Hydroxypropyl methylcellulose yakawedzerwa zvishoma nezvishoma nekukurudzira kunonoka, uye HPMC yakayangarara pamusoro pemvura, uye ipapo slurry yakaumbwa zvishoma nezvishoma, uye slurry yakanyoroveswa nekukurudzira. 2) Kuwedzera 1/3 kana 2/3 yehuwandu hunodiwa hwemvura kumudziyo uye kupisa kusvika ku70 ° C, kuparadzira HPMC maererano ne1) kugadzirira slurry yemvura inopisa; wobva wawedzera huwandu hwakasara hwemvura inotonhorera kumvura inopisa Mu slurry, musanganiswa wacho wakanyoroveswa mushure mekukurudzira. Powder mixing method: iyo HPMC powder inosanganiswa nehuwandu hwezvimwe zvinhu zvehupfu, zvakasanganiswa zvakakwana ne blender, uye zvino inonyungudutswa nemvura. Panguva ino, HPMC inogona kunyungudika pasina agglomeration, nekuti imwe neimwe kona diki ine HPMC shoma. Hupfu huchanyungudika pakarepo paunosangana nemvura. -Iyi nzira inoshandiswa ne putty poda uye vanogadzira dhaka. Hydroxypropyl methylcellulose (HPMC) inoshandiswa sechinhu chakakora uye chekuchengetedza mvura mu putty mortar.

Nzira yekutonga sei kunaka kwehydroxypropyl methylcellulose (HPMC) zviri nyore uye intuitively?

(1) Kuchena: Kunyangwe kuchena kusingakwanise kuona kana HPMC iri nyore kushandisa, uye kana yakawedzerwa kune inopenya panguva yekugadzira, ichakanganisa kunaka kwayo. Zvisinei, zvigadzirwa zvakanaka zvinowanzochena. (2) Fineness: Kunaka kweHPMC kunowanzo kuve ne80 mesh uye zana mesh, uye 120 mesh ishoma. Iko kunaka kwehunyoro, zviri nani mune zvese. (3) Transmittance: Isa hydroxypropyl methylcellulose (HPMC) mumvura kuti iite yakajeka colloid, uye tarisa kujeka kwayo. Iyo iri nani iyo transmittance, iyo ishoma isinganyungudika. . Iyo vertical reactor ine yakanaka kupinza, uye yakachinjika reactor yakaipisisa, asi hazvireve kuti kunaka kweiyo vertical reactor iri nani pane yeketero. Unhu hwechigadzirwa hunotarirwa nezvinhu zvakawanda. (4) Simba rinokwevera zvinhu pasi: Kukura kwesimba rinokwevera zvinhu pasi, ndiko kukura kunorema. Chiyero chakakura, kazhinji nekuti zvirimo muboka re hydroxypropyl zvakakwirira, uye zviri muboka re hydroxypropyl zvakakwirira, kuchengetwa kwemvura kuri nani.

Chii chinonzi hydroxypropyl methylcellulose (HPMC) mu putty powder?

Huwandu hwekuvaka giredhi HPMCinoshandiswa mumashandisirwo anoshanda inosiyana nemamiriro ekunze, tembiricha, yemunharaunda ash calcium quality, formula ye putty powder uye "mhando inodiwa nevatengi". Kazhinji, pakati pe4 kg ne5 kg. Somuenzaniso: inotonhora nzvimbo putty upfu, vazhinji vanoisa 5 kg; Nzvimbo inopisa inowanzoita 5 kg muzhizha uye 4.5 kg muchando.

Chii chinonzi viscosity yehydroxypropyl methylcellulose (HPMC)?

The wall putty powder inowanzoita 100,000, uye dhaka rakaoma rinodiwa kuti rive rakakwirira. Izvo zvinodiwa kushandisa 150,000. Uyezve, basa rakakosha reHPMC nderekuchengeta mvura, zvichiteverwa nekukora. Mune putty powder, chero bedzi kuchengetwa kwemvura kwakanaka, viscosity yakaderera (70,000-80,000), inogonawo. Ehe, iyo viscosity yakakura, hukama hwekuchengetedza mvura huri nani. Kana iyo viscosity inopfuura 100,000, mhedzisiro yeviscosity pakuchengetedza mvura haina kunyanya kukura.

Ndeapi makuru tekinoroji zviratidzo zvehydroxypropyl methylcellulose (HPMC)?

Hydroxypropyl yemukati uye viscosity, vashandisi vazhinji vane hanya nezviratidzo zviviri izvi. Kana iyo hydroxypropyl yemukati yakakwira, kuchengetwa kwemvura kunowanzo kuve nani. Viscosity, kuchengetedza mvura, hama (pane mhedziso), uye high viscosity, zviri nani mudhaka resimende.

Ndezvipi zvinhu zvakakosha zvehydroxypropyl methylcellulose (HPMC)?

Iyo huru yezvigadzirwa zvehydroxypropyl methylcellulose (HPMC): donje rakanatswa, methyl chloride, propylene oxide, zvimwe zvigadzirwa, senge caustic soda, acid, toluene, isopropanol.

Ndeipi basa guru reHPMC mukushandiswa kweputty powder?

HPMC inobata basa rekukora, kuchengetedza mvura uye kuvaka mune putty poda. Kuwedzera: Cellulose inogona kukwidziridzwa kuti imise, chengetedza mhinduro yakaenzana yunifomu, uye kuramba sag. Kuchengetedzwa kwemvura: Iyo putty poda inoomeswa zvishoma nezvishoma, uye iyo inobatsira ash calcium inopindirana pasi pekuita kwemvura. Kuvaka: Cellulose ine lubricating effect, iyo inogona kuita kuti putty powder ive nekushanda kwakanaka. HPMC haitore chikamu mune chero chemakemikari maitiro uye inongotamba basa rekutsigira. Putty poda nemvura, pamadziro, ikemikari reaction. Nemhaka yekuumbwa kwezvinhu zvitsva, iyo putty powder pamadziro inobviswa kubva pamadziro, yakagadzika kuva upfu, uye inoshandiswa zvakare, haigoni kushanda, nokuti chinhu chitsva chakaumbwa (calcium carbonate). ). Zvikamu zvikuru zveash calcium powder ndezvi: Ca (OH) 2, musanganiswa weCaO uye zvishoma zveCaCO3, CaO+H2O=Ca(OH)2-Ca(OH)2+CO2=CaCO3+H2O ash calcium mu mvura nemhepo Pasi pechiito che CO2, calcium carbonate inoumbwa, uye HPMC inongochengetedza mvura, inobatsira kuita zviri nani kweash calcium, uye haibatanidzi mune chero ipi zvayo pachayo. 

HPMC isiri-ionic cellulose ether, saka chii chisiri-ion?

Kazhinji kutaura, kwete-ion chinhu chisiri mumvura uye chisina ionized. Ionization zvinoreva nzira iyo electrolyte inopatsanurwa kuita iyoni inochajiwa yakasununguka muchinhu chakanyungudutsa chakaita semvura kana doro. Semuenzaniso, munyu unodyiwa zuva rega rega, sodium chloride (NaCl), inoiswa ionized kuti ibudise-yakasununguka-inofamba sodium ions (Na+) inopomerwa zvakanaka uye chloride (Cl) inopomerwa zvisina kunaka. Izvi zvinoreva kuti, HPMC inoiswa mumvura uye haiparadzanise mumaoni anochajiswa, asi iripo muchimiro chemamorekuru.

Chii chinonzi tembiricha yegel yehydroxypropyl methylcellulose?

Iyo tembiricha yegel yeHPMC ine hukama neiyo methoxy yemukati. Iyo yakaderera methoxy yemukati, iyo yakakwirira tembiricha yegel.

Ko hupfu hweputty hune hukama neHPMC?

Iyo poda yeputty powder inonyanya kuenderana nemhando yegrey calcium, uye haina zvishoma zvekuita neHPMC. Iyo yakaderera calcium yeash calcium uye chiyero chisina kufanira cheCaO uye Ca (OH) 2 muash calcium inokonzera kurasikirwa kweupfu. Kana yakabatana neHPMC, zvino kana kuchengetwa kwemvura kweHPMC kusina kunaka, kunokonzerawo kurasikirwa kweupfu.

Ndeupi mutsauko uripo pakati pemvura inotonhora yekukurumidza mhando uye inopisa soluble mhando yehydroxypropyl methylcellulose mukugadzira? HPMC mvura inotonhora instant type is surface treatment with glyoxal , uye inokurumidza kuparadzirwa mumvura inotonhora, asi haina kunyatsonyungudika. Kana iyo viscosity yakwira, inonyungudika. Iyo inopisa soluble fomu haisi pamusoro inobatwa ne glyoxal. Kana huwandu hweglyoxal hwakakura, kupararira kunokurumidza, asi viscosity inononoka. 

Chii chinonzi kunhuwa kwehydroxypropyl methylcellulose (HPMC)?

Iyo HPMC inogadzirwa nenzira yekunyungudutsa inoshandisa toluene uye isopropyl doro sezvinonyungudutsa. Kana kugeza kusina kunaka, pachava nekusarira kuravira.

Nzira yekusarudza iyo chaiyo hydroxypropyl methylcellulose (HPMC) yezvinangwa zvakasiyana?

Kushandiswa kweputty powder: zvinodiwa zvakaderera, viscosity ndeye 100,000, zvakanaka, chinhu chinokosha ndechokuchengeta mvura iri nani. Kushandiswa kwedhaka: zvinodiwa zvakanyanya, high viscosity, 150,000 iri nani. Glue application: Inoda pakarepo mhando chigadzirwa, yakakwirira viscosity.

Chii chinonzi hydroxypropyl methylcellulose?

Hydroxypropyl methylcellulose, HydroxypropylMethylCellulose Kupfupisa: HPMC kana MHPC alias: hypromellose; cellulose hydroxypropyl methyl ether; Hypromellose, Cellulose ether, 2-hydroxypropylmethyl Cellulos eether. Cellulose hydroxypropyl methyl ether, Hyprolose.

Kushandiswa kweHPMC mu putty powder, chii chinokonzera furo mu putty powder?

HPMC inobata basa rekukora, kuchengetedza mvura uye kuvaka mune putty poda. Usatora chikamu mune chero maitiro. Chikonzero chebubble: 1, mvura yakawandisa. 2, iyo yepasi pasi haina kuoma, ingokwenya dhiri kumusoro, zvakare iri nyore kupupa.　

Iyo yemukati nekunze madziro putty poda formula?

Interior wall putty powder: heavy calcium 800KG grey calcium 150KG (starch ether, pure green, penmine ivhu, citric acid, polyacrylamide, etc. inogona kusarudzwa zvakakodzera kuwedzera)

Kunze kwemadziro putty poda: simende 350KG, inorema calcium 500KG, jecha requartz 150KG, latex Powder 8-12KG, cellulose ether 3KG, starch ether 0.5KG, huni fiber 2KG

Ndeupi musiyano uripo pakati peHPMC neMC?

MC inonzi methyl cellulose. Mushure mekunge donje rakanatswa rabatwa nealkali, chloromethane inoshandiswa seye etherifying agent, uye nhevedzano yemhinduro inoitwa kugadzirira cellulose ether. Dhigirii rekutsiva kazhinji 1.6 kusvika 2.0, uye dhigirii rekutsiva rinosiyana zvichienderana nekunyungudika. Iyo ndeye nonionic cellulose ether.

(1) Kuchengetwa kwemvura kwemethyl cellulose kunoenderana nehuwandu hwekuwedzera, viscosity, particle fineness uye dissolution rate. Kazhinji, huwandu hwekuwedzera hwakakura, hunyoro hudiki, uye viscosity yakakura, uye chiyero chekuchengetedza mvura chakakwira. Nhamba yekuwedzera ine simba guru pahuwandu hwekuchengetedza mvura, uye chiyero che viscosity hachina kuenzana nehuwandu hwekuchengetedza mvura. Chiyero chekuparara chinotsamira zvakanyanya pachiyero chekugadziriswa kwepasi kwe cellulose particles uye kunaka kwezvimedu. Pakati pema cellulose ethers ari pamusoro apa, methylcellulose uye hydroxypropylmethylcellulose vane huwandu hwekuchengetedza mvura.

(2) Methylcellulose inonyungudika mumvura inotonhora, uye yakaoma kunyungudika mumvura inopisa. Mushonga wemvura wakanyatsogadzikana muhupamhi hwepH = 3 ~ 12. Iyo ine kuenderana kwakanaka ne starch, guar gum uye mamwe akawanda ma surfactants. Kana tembiricha inosvika tembiricha yegelation, gelation phenomenon inoitika.

(3) Shanduko yekushisa ichakanganisa zvakanyanya mwero wekuchengetedza mvura yemethyl cellulose. Kazhinji, kukwirisa tembiricha, kunowedzera kuchengetedzeka kwemvura. Kana tembiricha yedhaka ichipfuura 40 ° C, kuchengetwa kwemvura kwemethyl cellulose kuchave kwakanyanya kuderera, izvo zvinokanganisa zvakanyanya kushanda kwedhaka.

(4) Methyl cellulose ine mhedzisiro yakakosha pakushanda uye kunamatira kwedhaka. “Kunamira” pano kunoreva simba rekunamira rinonzwikwa pakati pemudziyo wekushandisa wemushandi nechikamu chemadziro, ndiko kuti, kugerwa kwedhaka. Kusungirirwa kwakakura, kupikisa kweshear kwevhu kwakakura, simba rinodiwa nemushandi panguva yekushandiswa rakakurawo, uye kushanda kwedhaka kwakashata.

Methylcellulose adhesion ndeyepakati mune cellulose ether zvigadzirwa. HPMC is hydroxypropylmethylcellulose, inova nonionic cellulose yakasanganiswa ether yakagadzirwa nenhevedzano yemaitiro uchishandisa acetal oxide uye methyl chloride senge etherifying agent mushure me alkalization yedonje rakanatswa. Dhigirii rekutsiva kazhinji 1.2 kusvika 2.0. Hunhu hwayo hwakasiyana zvichienderana nereshiyo yemethoxyl yemukati uye hydroxypropyl yemukati.

(1) Hydroxypropyl methylcellulose inonyungudika nyore nyore mumvura inotonhora, uye zvingave zvakaoma kunyungudika mumvura inopisa. Nekudaro, tembiricha yayo yegelation mumvura inopisa yakanyanya kukwirira kupfuura iyo yemethyl cellulose. Kunyungudika mumvura inotonhora zvakare kuri nani pane methyl cellulose. -

(2) Iyo viscosity yehydroxypropylmethylcellulose inoenderana nehuremu hwayo, uye viscosity yakakwira kana huremu hwema molecular hwakakura. Tembiricha inokanganisawo viscosity yayo, tembiricha inokwira, uye viscosity inoderera. Nekudaro, viscosity yayo ine tembiricha yakaderera pane methyl cellulose. Mhinduro yaro yakagadzikana pakupisa kwekamuri.

(3) Hydroxypropyl methylcellulose yakagadzikana kune acids uye mabhesi, uye mhinduro yayo ine aqueous yakagadzikana muhuwandu hwepH = 2 ~ 12. Caustic soda uye mvura yeraimu haina mhedzisiro yakawanda pazvinhu zvavo, asi alkali inomhanyisa kunyungudika kwavo uye inowedzera viscosity. Hydroxypropyl methylcellulose ine kugadzikana kune yakajairwa munyu, asi kana iko kusanganiswa kwemunyu munyu kwakakwira, viscosity yehydroxypropyl methylcellulose mhinduro inowedzera kuwedzera.

(4) Kuchengetwa kwemvura yehydroxypropyl methylcellulose kunoenderana nehuwandu hwekuwedzera, viscosity, nezvimwewo, uye chiyero chekuchengetedza mvura pasi pechiyero chakafanana chakakwirira kupfuura chemethylcellulose.

(5) Hydroxypropyl methylcellulose inogona kusanganiswa nemvura inonyungudika yepolymer compound kuti iite yunifomu, yakakwirira viscosity solution. Zvakadai se polyvinyl doro, starch ether, yemiriwo gum nezvimwe zvakadaro.

(6) Hydroxypropyl methylcellulose ine yakakwirira kunamatira kune dhaka kupfuura methyl cellulose.

(7) Hydroxypropyl methylcellulose ine zviri nani enzymatic kuramba pane methylcellulose, uye mhinduro yayo haigone kuve yakasvibiswa enzymatic pane methylcellulose.

HPMC viscosity uye hukama hwekushisa, chii chinofanira kutariswa mune zvinoshanda maapplication?

Iyo viscosity yeHPMC inopindirana nekushisa, kureva kuti, viscosity inowedzera nekuderera kwekushisa. Iyo viscosity yechigadzirwa yatinowanzo taura nezvayo ndeye mhedzisiro yekuyedza yayo 2% aqueous solution patembiricha ye20 degrees Celsius. Mumashandisirwo anoshanda, munzvimbo dzine tembiricha yakakura kusiyana pakati pezhizha nechando, zvinofanirwa kucherechedzwa kuti zvinokurudzirwa kushandisa yakaderera viscosity munguva yechando, iyo inobatsira pakuvaka. Kana zvisina kudaro, kana kutonhora kwakaderera, viscosity ye cellulose inowedzera, uye kana yakakweshwa, kunzwa kweruoko kuchave kunorema. Medium viscosity: 75000-100000 Inonyanya kushandiswa putty Chikonzero: kuchengetwa kwemvura yakakwirira viscosity: 150000-200000 inonyanya kushandiswa kune polystyrene granule insulation mortar powder uye vitrified microbead insulation mortar. Chikonzero: high viscosity, dhaka haisi nyore kuwira Hongu, sag, yakagadziridzwa kuvaka. Asi kazhinji, iyo yakakwira viscosity, zviri nani kuchengetwa kwemvura, saka zvirimwa zvakawanda zvevhu rakaoma zvinotarisa mutengo, kutsiva yepakati uye yakaderera viscosity cellulose nepakati viscosity cellulose (75000-100000). (20000-40000) kuderedza mari yakawedzerwa.