Chii chinonzi HPMC Hydroxypropyl methyl cellulose uye simenti reshiyo?
Injiniya yekuisa dhaka isina mvura, hunhu hwayo hunoenderana nehuremu hunotevera hwezvinhu zvakagadzirwa: Concrete 30-340, engineering kuvaka tsvina zvidhinha poda 40-50, lignin fiber 20-24, calcium formate 4-6, hydroxypropyl methyl cellulose 7-9, silicon carbide poda 40-45, 10-45, 10-45, 1. 10-12, yakaoma guta guru silt upfu 30-35, Datong guta ivhu 40-45, aruminiyamu sulfate 4-6, carboxymethyl Base starch 20-24, modified zvinhu nanotechnology kabhoni upfu 4-6, mvura 600-650; Iyo isingapindi mvura yeinjiniya yekuvharisa dhaka yechigadzirwa ichi ine kupisa kwakasimba kwekudzivirira, kunaka kwemoto kuramba, kusungirirana kwakasimba nemadziro, kusimba kwesimba, kusimba kwekuita, kuchembera kwakanaka, kuchengetedza kwakanaka kwezvakatipoteredza, yakanakisa kusanaya kwemvura, kutsemuka kuramba, kudzivirira kudonha pasi. Nhasi tichataura nezve viscosity yehydroxypropyl methyl cellulose aqueous solution zvese zviri muzvikamu zvipi? Ngatinyatsoidzidza.
1. Huremu hwemamorekuru, tembiricha yemushonga wemvura, chiyero chekucheka uye nzira yekuyedza ye cellulose ether; 2. Iyo yakakwira tembiricha yekuchinja kwegirazi, iyo yakakura iyo yakaenzana molecular uremu, viscosity yemushonga inowanzoitika yakakwirira; 3. Iyo yakakwirira yezvinyorwa zve cellulose ether, iyo yakakwira viscosity yemhinduro, saka mukushandiswa kwechikumbiro tinofanira kutarisisa kuwanda kwakakodzera kwekubatanidzwa, kudzivirira kubatanidzwa kwakanyanya, uye kunokanganisa zvakananga maitiro esamende dhaka uye simende kongiri; 4. Sezvizhinji zvemhinduro, viscosity inodererawo nekuwedzera kwekushisa, pamwe nepamusoro pezviri mukati me cellulose ether, kukuvadza kukuru kwekushisa; Mukuwedzera, iyo chaiyo thickening mhedzisiro inosiyanawo zvichienderana nehuwandu hwemvura inoshandiswa kune epoxy simende.
Hydroxypropyl methyl cellulose aqueous solution viscosity zvakare inogona kushanda sechinhu chakakosha chekutaura pamusoro pehunhu hwe cellulose ether, iyo yakakwira viscosity yeaqueous solution, iyo gobvu ye epoxy simende zvinhu zviri, zviri nani, kuseri kweplate gelling zvimiro, asi kana viscosity yakakurisa, ichakuvadza epoxy zvinhu nekukasira kunyungudika. Kana iri imwe dhaka inozvimisa ine mvura yakawanda, viscosity ye cellulose ether ichatsanangurwa kuve yakaderera.
Cellulose ether aqueous solution is pseudoplastic body, isu muchikamu chekupedzisira chekuonekwa kweshear rate yakakura, viscosity iduku.
Naizvozvo, kupfupisa ndeichi: kubatanidzwa kwesamende dhaka kuchaderedzwa nekunze kwesimba, izvo zvinobatsira kune engineering kuvaka kumashure, asi cellulose ether aqueous mhinduro mune yakaderera zvakanyanya kukosha, zvichaitika hunhu hweiyo isiri-Newtonian fluid, pane zvinopesana, kana iyo yekumisikidza kukosha ichiwedzerwa, mhinduro yemvura ichaitika pseudoplastic fluid maitiro.
Kuchengetwa kwemvura kubva kuhydroxypropyl methyl cellulose chimwe chezvinhu zvakakosha zvehydroxypropyl methyl cellulose. Huwandu hwekubuda kwemvura mune zvakasanganiswa dhaka uye plaster based zvigadzirwa zvinokanganiswa nekupisa kwegasi, tembiricha uye chiyero chekumanikidza. Naizvozvo, mumwaka wakasiyana, pamwe nehydroxypropyl methyl cellulose yakaenzana huwandu hwechigadzirwa mvura inoshanda ine mimwe misiyano.
Kazhinji, iyo yakakwirira viscosity yehydroxypropyl methyl cellulose ndeye, zviri nani mhedzisiro chaiyo yekuchengetedza mvura ichave, asi kukuvadza kweviscosity kukuchengetedza mvura kuchaderedzwa mushure mekunge viscosity inopfuura 100,000 Mpa. s. Kana iyo viscosity yeHYDROXYpropyl methyl cellulose inopfuura 100,000, mwero wekuchengetedza mvura unogona kuvandudzwa zvakanyanya nekuwedzera huwandu hwehydroxypropyl methyl cellulose.
Mukuita kwakadzama kwekuvaka, iyo mvura yekuchengetedza mhedzisiro yeslurry inogona kugadziriswa nekugadzirisa huwandu hwehydroxypropyl methyl cellulose. Hydroxypropyl methyl cellulose series zvigadzirwa zvinogona kunyatsogadzirisa dambudziko rekuchengetedza mvura pasi pekuenderera kwekushisa kwakanyanya. Mumwaka unoenderera wekushisa kwepamusoro, kunyanya munzvimbo dzinopisa uye dzinofinha uye kuvakwa kwechromatography padivi rezuva, yemhando yepamusoro HYDROXYpropyl methyl cellulose inodiwa kuvandudza kuchengetwa kwemvura kweslurry.
Hunhu hwepamusoro hwehydroxypropyl methyl cellulose, ine chiyero chakanaka, chepamusoro butyl uye hydroxypropyl okisijeni mapoka anoshanda pamwe chete nefiber molecular chain structure joint distribution, inogona kugadzira methyl aldehyde boka uye mweya weokisijeni, uye mhando yemvura yedhijitari fomu covalent bonds inogona, inova yakasungwa mvura nemvura yekupararira, yobva yanyatso kudzora kupisa kwemvura kunokonzerwa nekukwira kwemvura.
Hunhu hwepamusoro hwehydroxypropyl methyl cellulose inogona kukwana yakasununguka uye yekutengeserana ivhu mune yakasanganiswa dhaka uye plaster zvigadzirwa, uye ese akasimba zvimedu cyst, kunyorova, kutonhorera, uye kugadzira mutsetse wefirimu, hunyoro huri pakati nepakati-kurebesa kuburitswa zvishoma nezvishoma kubva pachigadziko, nekutanga kweiyo organic musanganiswa we hydration reaction, wobva wavimbisa kubatana kwesimba rawhizha rekumanikidza uye gumi simba rekumanikidza. Mukuchengetedza kwakadzikama tembiricha yezhizha yekuvaka, saka, kuti isvike mvura, inofanirwa kuenderana neresipi yehumwe huwandu uye mhando yehydroxypropyl methyl cellulose zvigadzirwa, zvikasadaro, icharatidza kufinha nekukurumidza uye kukonzeresa kusakwana kwemvura, kuderedza simba rekumanikidza, kupatsanurwa, kuburitsa hunhu hwakadai semetope isina chinhu chigubhu uye kusahadzika, zvakare zvakasanganiswa nemushandi wekuvaka kuoma kwakaoma. Sezvo tembiricha inodonha, huwandu hwehydroxypropyl methyl cellulose hunogona kudzikiswa zvishoma nezvishoma uye iyo yakafanana yekuchengetedza mvura inogona kuwanikwa.
Kana cellulose ether ikasawedzerwa, iyo chromatography yesamende nyowani inokurumidza kuoma, kugadzira kongiri haigone kunyoroveswa nenzira yakajairika, zvichiita kuti simende dhaka haigone kuomeswa uye kuwana kunamatira kuri nani. Panguva imwecheteyo, kuwedzera kwe cellulose ether kunoita kuti simende dhaka ive yakanaka ductility uye kuchinjika, uye inovandudza kusungirirwa kusimba kwesimba resimende dhaka.
1, hydroxypropyl methyl cellulose particle size
Saizi ye cellulose ether inokuvadza kunyungudika kwayo. Iyo yakatsetseka cellulose ether ndeye, iyo inokurumidza kukurumidza kuparara kwayo mumvura uye nepamusoro maitiro ayo ekuchengetedza mvura. Naizvozvo, saizi yechikamu che cellulose ether inofanirwa kuverengerwa mukuferefeta kweimwe yemaitiro ayo. Kazhinji, cellulose ether particle size ye80 mesh yakavakirwa pa.
2, hydroxypropyl methyl cellulose yakaoma isina simba regiravhiti
Dry manic no gravity rate, inoreva imwe tembiricha yeakaoma manic cellulose ether, kurasikirwa kwemhando yekemikari kunoverengera yekutanga sampuli mhando muzana yekuumbwa. Kune humwe hutano hwe cellulose ether mune yakaoma pasina giravhiti yakanyanyisa, ichaderedza zvakakosha zvikamu mu cellulose ether, kukuvadza mhedzisiro chaiyo yekushandiswa kwemakambani ekudzika, asiwo kuvandudza mutengo wekutenga. Kazhinji iyo yakaoma cellulose ether isina simba regiravhiti haifaniri kudarika 5.0%.
3, hydroxypropyl methyl cellulose potassium thiocyanate ash
Kune humwe hutano hwe cellulose ether muhuwandu hwemadota hwakanyanya, huchaderedza cellulose ether muzvikamu zvakakodzera, kukuvadza mugumisiro chaiwo wekushandiswa kwemakambani ekudzika, cellulose ether potassium thiocyanate ash content ndiyo inonyanya kufunga nezvezvayo maitiro index kukosha.
4, hydroxypropyl methyl cellulose viscosity
Hydroxypropyl methyl cellulose kuchengetwa kwemvura uye kukora mhedzisiro ndiyo kiyi yekuwedzera simende mortar cellulose ether mune yayo viscosity uye kubatanidzwa.
5, hydroxypropyl methyl cellulose PH kukosha
Iyo viscosity yezvigadzirwa zvehydroxypropyl methyl cellulose inodzikira zvishoma nezvishoma pakupisa kwepamusoro kana mushure mekuchengetedza kwenguva yakareba, kunyanya kune yakakwira viscosity zvigadzirwa, saka kukosha kwepH kunofanirwa kuve kushoma. Zvinowanzotaurwa kuti PH kukosha chikamu che cellulose ether inofanira kushandiswa se5-9.
6. Kutumira kwehydroxypropyl methyl cellulose
Zvakanakira uye kuipa kwekufambiswa kwehydroxypropyl methyl cellulose inogona kukanganisa zvakananga mhedzisiro yekushandiswa kwayo mukuvaka zvinhu. Zvinhu zvekutanga zvinokuvadza kutapurirana kwe cellulose ether ndezve
1) kunaka kwezvinhu zvakasvibiswa; (2) mugumisiro chaiwo wokuuraya; (3) Kugadzirisa tekinoroji kugadzirira; (4) organic solvent kugadzirira; (5) Mhedzisiro chaiyo yezhonghe.
Zvinoenderana neiyo chaiyo yekushandisa mhedzisiro, iyo transmittance ye cellulose ether haifanire kunge iri pasi pe80%.
7, hydroxypropyl methyl cellulose inofungidzirwa tembiricha
Hydroxypropyl methyl cellulosemuzvikamu zvesimende sekiyi yekuwedzera zvinonamatira, viscosity uye kuchengetedza mvura, saka viscosity uye tembiricha yegel ndiyo yakakosha index kukosha kwehydroxypropyl methyl cellulose. Iyo tembiricha inoshandiswa kutonga rudzi uye kutsanangurwa kwe cellulose ether, uye dhigirii rekutsiva cellulose ether inobatana.
8. Mukuwedzera, munyu uye zvakasara zvichakuvadzawo kutonhora kweglue. Kana tembiricha yemushonga wemvura inokwira, iyo fiber polymer zvishoma nezvishoma inoshaya mvura, uye viscosity yemushonga wemvura inoderera. Kana iyo yekunamatira yasvika, iyo polima inoomeswa zvachose uye inonamira inogadzirwa. Naizvozvo, tembiricha yekushanda yenhengo dzesimende inowanzova pazasi pekutanga glue tembiricha. Pasi pechiyero ichi, kudzika kwekushisa, kunowedzera viscosity, uye kunyanya kukosha kwekuita kwe viscosification uye kuchengetedza mvura.
Nguva yekutumira: Kubvumbi-25-2024