Nekuenderera mberi kweindasitiri yeindasitiri uye nekuvandudzwa kwehunyanzvi, kuburikidza nekutanga uye kuvandudzwa kweMutamba weMoterland. Mechancal Spraying Dururu yakasiyana neyakajairwa neyakajaira, iyo inoda yakakwira mvura yekuchengeta kwemvura, fluidity yakakodzera uye zvimwe zvinosimbisa-antti-shagging performance. Kazhinji, hydroxyprusyl methylcellose inowedzerwa kune iyo duri, iyo ma cellulose ether (HPMC) ndiyo inonyanya kushandiswa. Mabasa makuru eHydroxyPropyl methylcellose hpmc mu moter ndere: kururamisa uye kusanganisa, kugadzirisa rheology, uye nekuchinjisa mvura yekuchinjisa. Nekudaro, zvikanganiso zveHPMC haigone kufuratirwa. HPMC ine mhepo-yekupindira mhedzisiro, iyo ichaita kuti iwedzere kuremara kwemukati uye zvakanyanya kuderedza michina yemuchina. Shandong chenzang yakanaka chemcal coemical co mernical yekuchengetwa kwemvura, density uye yakadzidzwa pesvedzero yeiyo metrroxproproprollose .
1. Muedzo
1.1 zvinhu zvakagadzirwa
SEment: Commenery Inowanikwa P.0 42,5 SIMENT, yayo 28D inochinja-siyana uye inosimbisa simba ndeye 6.9 uye 48.2 MPA zvichiteerana; jecha: Chengde yakanaka rwizi jecha, 40-1000 mesh; Cellulose Ether: Yakagadzirwa ne Shandong Chenwmal Fine Cemical Cemical Co methylcellose ether, White Powder, Zano rezita 40, 100, 150, 200 Pa-S; Mvura: Yakachena Tap Mvura.
1.2 bvunzo nzira
Sekureva kwaJgj / T 105-2011 "Mitemo yekuvaka yemuchina yekupuruzira uye yekuparadza", kuwirirana kweiyo mongwe is 80-120 mm, uye iyo mwero wekuchengetwa kwemvura yakakura kupfuura 90%. Muedzo iyi, rambi-jecha-jecha rakaiswa pana 1: 5, kuwirirana kwakadzorwa ku (93 + 2) mm, uye cellulose ther zvakasanganiswa kunze, uye huwandu husina kubatanidzwa hwaive hwakavakirwa paStement Misa. Zvivakwa zvekutanga zvakadai sekunyorova zvakanyorova, kuchengetwa kwemvura, kudzokorora kwemvura, uye nzira dzekuyedza dzezvivakwa zvekutengesa Iyo yekugadzirira, yekufemera uye yekumanikidza yekuongorora kwemifananidzo yakaitwa maererano neGB / T 176713-1999 "Nzira dzekuyedza Simba reComent Mortar Sand (IOPO nzira)". Iyo dhayamita yeiyo mauto yakayerwa neiyo mercury poorosimetry. Muenzaniso wePorcury Porosimeter waive autopore 9500, uye huwandu hwekuyera hwaive 5.5 nm-360 μm. Yese miviri yemitsetse yemuedzo yakaitwa. Iyo yeSement-jecha Ratio yaive 1: 5, viscosity yeHPMC yaive 100 Pa-s, uye dosage 0, 0,2% (nhamba) b, c, d.
2. Mhedzisiro uye kuongororwa
2.1 Mhedzisiro yeHPMC pane iyo mvura yekuchengetwa kwemuyero yeiyo coment motsi
Kuchengetwa kwemvura kunoreva kugona kwemutema kuti ubate mvura. Muchina akapfava motwe, achiwedzera cellulose ether anogona kuita zvinobudirira mvura, kuderedza chiyero chekubuda ropa, uye chenjera zvinodiwa zviyero zvizere zvezvinyorwa zveSement-based. Mhedzisiro yeHPMC pakuchengetwa kwemvura yerudzi.
Nekuwedzera kweHPMC Zvemukati, iyo mvura yekuchengetwa kwemotokari inowedzera zvishoma nezvishoma. Iyo curves ye hydroxyprusyl methylcellose ether ne viscorys of 100, 150 uye 200 Pa.S.S.S. Kana zvirimo zvirimo 0.05% -0%, iyo mwero wekuchengetwa kwemvura inowedzera mutsara, uye kana zvirimo zviri 0,15%, iyo mwero wekuchengetwa kwemvura yakakura kupfuura 93%. ; Kana huwandu hwechiratidzo hunodarika 0,20%, maitiro ekuwedzera ekuchengetwa kwemvura anova akatetepa, zvichiratidza kuti huwandu hweHPMC iri pedyo neStUration. Iyo pesvedzero yehuwandu hwehuwandu hweHPMC neiyo viscosity ye40 PaP. Pamhepo yekudzokorora kwemvura ingangoita tambo yakatwasuka. Kana huwandu hwakakura kupfuura 0.15%, iyo mvura yekuchengetwa kwemvura yakaderera zvakanyanya pane iyo yemamwe marudzi matatu eHPMC ine huwandu hwakaenzana hwemasvomhu. Zvinowanzoda kuti mvura denderedzwa yemvura yeCellulose its: The hydroxyl boka pane Cellen Bondincule kuti iite chisungo cheHydrocu Izvo zvakare zvinodavira kuti kupindirana pakati pemamolekyudhi emvura uye cellulose ether macines kunobvumira mamorekuru emaraini ekutora macoromolecular. Kuchengetwa kwemvura kwakanakisa kunogona kuchengeta mongororo yemukati, kwete nyore kusevha, uye kuwana mashandiro akanaka ekusanganisa, achideredza kupfeka uye kuwedzera hupenyu hwemuchina wekupfira.
2.2 Mhedzisiro ye hydroxyprupyl methylcellose hpmc pane density uye mhepo yezvirevo zve coment motsi
Kana huwandu hweHPMC iri 0-0,20%, iyo density yeiyo motsi inoderera nekuwedzera kwehuwandu hweHPMC, kubva muna 2050 kg / m3 kusvika 1650kg / m3, iro rinenge 20% kuderera; Kana iyo huwandu hweHPMC inodarika 0.20%, density inoderera. mukudzikama. Kufananidza marudzi mana eHPMC ane zvisizvo zvevasisiki, iyo yepamusoro viscosity, iyo yakadzika density yedhaka; Iyo density curves yeiyo mongwe neiyo madhiri akasanganiswa e150 ne200 PaS.S hpmc overlap, zvichiratidza kuti sezvo zvokuvonekwa kweHPMC inoenderera mberi nekuwedzera, dentity haichapfuurire.
Mutemo wekuchinja wemhepo zvemukati wemuti unopesana nekuchinja kwekushanduka kwemutya. Kana zviri mukati mehydroxyprupylpropyl methylcellose hpmc iri 0-0,0%, nekuwedzera kweHPMC yezvinyorwa, mhepo yemukati inowedzera inenge inenge inenge inenge inenge inenge inenge inenge inenge inenge inenge inenge inomhanya; Zviri mukati meHPMC inodarika mushure me0,20%, iyo mhepo inochinja zvisingaiti, zvichiratidza kuti mhepo-yekupindira madhiri iri pedyo neyakagadziriswa. Iyo mhepo-inopinda mhedzisiro yeHPMC ine viscosity ye150 uye 200 Pa.Sekupfuura pane iyo HPMC ine viscosity ye40 uye 100 PaW.S.S.
Iyo mhepo-yekupindira mhedzisiro ye cellulose ether inonyanya kutsanangurwa neyakagadziriswa ma moleky. Cellulose ether ine ese maHydrophic mapoka (hydroxyl, ether) uye hydrophobic mapoka (methyl, glucose mhete), uye iri siractory. , ine nzvimbo yemusoro, nekudaro ine mhepo-inopinda mhedzisiro. Kune rimwe divi, gasi rakaunzwa rinogona kuita sebhora rinotakura mudhiri, kuvandudza basa rekushanda, kuwedzera vhoriyamu, uye kuwedzera iyo yekubuda, iyo inobatsira kumugadziri. Asi kune rumwe rutivi, iyo mhepo yekupindira inowedzera mhepo yezvinyorwa zvemutema uye hupfumi mushure mekushomeka, zvichikonzera kuwedzera kwematumba anokuvadza uye zvakanyanya kuderedza michina yemuchina. Kunyangwe HPMC ine imwe mhepo-inopindira mhedzisiro, haigone kutsiva mumhepo-yekupindira mumiririri. Uye zvakare, apo HPMC uye mhepo-inopinda mumiririri inoshandiswa panguva imwe chete, iyo mhepo-yekupindirana mumiririri anogona kutadza.
2.3 Mhedzisiro yeHPMC pane iyo mechanical Properties yeiyo siminiti motsi
Kana huwandu hweHPMC chete Kana huwandu hweHPMC uchidarika 0.20%, kuderera kwesimba rinosindimara uye simba rekumanikidza remota harisi pachena. Iyo viscosity yeHPMC ine zvishoma mhedzisiro pazvinhu zvemakanika zvevhu. HPMC inosvitsa yakawanda madiki emhepo mabhuru emabhuruku, uye mhepo yekushambadzira iri mudumbu inowedzera porosity yemukati uye inokuvadza pores, zvichikonzera kuderera kwakakura mukusimba kwekumanikidza uye simba rinoshanduka-shanduka. Chimwe chikonzero chekudzikira mumutengo wemvura ichichengetwa nemari yekuchengetedza celler Zvekuita muchina wekuvaka, kunyangwe cellulose ether zvinogona kuwedzera huwandu hwemvura yekuchengetwa kwemvura uye nekukasira zvakakura, saka hukama pakati pevaviri ava hunofanira kuyerwa zvine chikonzero.
Nekuwedzera kweiyo mamiriro e hydroxyprupyl methylcellose hpmc, iyo ratidziro yekuputira yakaratidza maitiro mazhinji anowedzera, izvo zvaive zvechokwadi hukama hwenyika. Izvi zvinodaro nekuti iyo yakawedzerwa Cellelose ether inounza huwandu hwemhepo mabhuru mumba, uye simba rekumanikidza rehungwaru remutungamiriri rinodzora zvakapusa, kunyangwe simba rinoslippura rinoderedza kune imwe nhanho. Asi iyo cellulose ether inogona kuvandudza kushanduka kwemutya, inobatsira kune yakashandiswa simba, iyo inoita kuti uderedze chiyero chinononoka. Kufunga zvakazara, mhedzisiro yeaviri inoenda kune kuwedzera kwekuputika kwehuremu.
2.4 Mhedzisiro yeHPMC pane L Diameter yeMutema
Kubva kuPore Saizi Yekugovera Durna
. Padivi rekugovera pore, iyo nharaunda yechifananidzo inoenda kurudyi, uye kukosha kwepombi kunoenderana nekukosha kwepamusoro kunova kwakakura. Mushure mekuwedzera HPMC, iyo Median Pore Dismeter Yakakura zvakanyanya kupfuura iyo yemuenzaniso yeiyo sampuli ine 0.3% Dosage inowedzera nemirairo yezvikuru zvichienzaniswa neyekukura.
(2. Zvinogona kuoneka kubva kuTafura 1 kuti nhamba yevasina kukuvara maburi kana mashoma anokuvadza maburi anoderedzwa zvakanyanya mushure mekuwedzera hpmc, uye huwandu hwemakomba anokuvadza kana maburi anokuvadza anowedzera. Iwo maPores asina kukuvadza kana mashoma anokuvadza emasampuli asina kuvhenganiswa neHPMC are nave 49.4%. Mushure mekuwedzera HPMC, iyo Pores isina kukuvadza kana pores isingakuvadzi yakanyanya kuderedzwa zvakanyanya. Kutora dosage ye 0,1% semuenzaniso, iyo madhiri asina kukuvadza kana pores isingakuvadzi inodzikiswa neinenge 45%. %, nhamba yemabhegi anokuvadza yakakura kupfuura 10um yakawedzera neinenge 9 nguva.
. zvinoenderana nekupararira kukuru. Asi pane zvese, iyo yepakati pore dhayamu, yakaenzana pore dhizaini uye chaiyo pore vhoriyamu yemuenzaniso yakasanganiswa neHPMC inowanzowedzera kuenzaniswa neisina Sampula, iyo chaiyo nzvimbo yemusoro inoderera.
Kutumira Nguva: Kubvumbi-03-2023