Panguva imwe chete, inogona kuvandudza zvine musoro simba rekumanikidza uye simba rekuchekerera reHPMC hydroxypropyl methyl cellulose, kuwedzera kuvandudza mhedzisiro chaiyo yekuvaka kweinjiniya, kuvandudza mashandiro. HPMC hydroxypropyl methyl cellulose inogona kuvandudza simba rekunamira reputty powder, kuderedza mamiriro ekumisikidzwa, kuve nechokwadi chekubudirira kwekuvaka kweinjiniya. Hydroxypropyl methyl cellulose inogona kuwedzera nguva yekushanda uye kugadzirisa dambudziko rekusava nesimba rekumanikidza kwekutanga uye kusakwana mukuvaka kweinjiniya.
Kushanda kwakanyanya kwesimbi yekuvaka yeinjiniya nesimbi yeputty kunogona kugadzira kongiri yakasanganiswa zvakakwana, uye zviri pachena kuti kunogona kuvandudza simba rekumanikidza resimbi. Panguva imwe chete, simba rekumanikidza uye simba rekuchekerera rehydroxypropyl methyl cellulose zvinogona kuvandudzwa zvine mwero kuti zviwedzere kuvandudza mhedzisiro chaiyo yekuvaka yeinjiniya uye kuvandudza kushanda zvakanaka.
Mwana wekudzivirira hunyoro,HPMChydroxypropyl methyl cellulose, mhedzisiro yehydroxypropyl methyl cellulose muputty powder, kudzivirira kuoma nekuoma kunokonzerwa nekubuda kwemvura nekukurumidza. Hydroxypropyl methyl cellulose inogona kuvandudza simba rekunamira kweputty powder, kuderedza mamiriro ekumisikidzwa, uye kuve nechokwadi chekubudirira kwekuvaka kweinjiniya.
Kiyi yeHPMC hydroxypropyl methyl cellulose ine mvura inokiya, kukora, kunyorovesa nezvimwe, kukora, kunyorovesa nezvimwe zvine mhedzisiro yekutanga. Hydroxypropyl methyl cellulose inogona kuwedzera nguva yekushanda uye kugadzirisa dambudziko resimba rekumanikidza rekutanga risina chinhu uye risina kukwana mukuvaka kweinjiniya.
HPMC hydroxypropyl methyl cellulose iri mumadziro inochengetedza madziro inoita basa guru mukusimbisa kubatana, uye inowedzera simba rekumanikidza rezvinhu zvakagadzirwa. Mortar iri nyore kufukidza, inovandudza kushanda, ine basa rekutanga rekudzivirira kufamba kwemvura uye inoshanda. Kushanda kwehydroxypropyl methyl cellulose inovhara mvura kunogona kuwedzera nguva yekushanda kwemortar, kuvandudza kuramba kusimba uye kunamatira, kuvandudza kunaka kwenzvimbo, uye kuvandudza simba rekumanikidza remortar.
Chinobatanidza mataira chinonyungudika mumvura chinobvisa kudiwa kwemataira nenheyo dzakanyorova kana dzakanyorova, zvichiwedzera kusimbisa simba rekumanikidzana. Nguva yekuvaka slurry engineering yakareba, inongwarira, yakaenzana, iri nyore kuvaka injiniya, uye inodzivirira hunyoro zvakanaka.
Munyaya yekugadzirwa kwepurasitiki yekuvaka, hydroxypropyl methyl cellulose inogona kushandiswa semushonga wekugadzira firimu, tackifier, demulsifier uye thickener, kuitira kuti firimu repurasitiki rirambe richidzivirira kupera, kuyerera uye kunamira zviri nani. PH inoshandiswa kuvandudza kusimba kwemukati meganda yakanyatsotsanangurwa, uye musanganiswa we organic solution wakanaka uye une kutsetseka kwakanaka.
Kubudirira kwehupfumi Mapendi ekuvaka ane simba rakanaka, mvura inoyerera zvakanaka uye anodzivirira kukwegura zvakanaka. Maitiro ekugadzira mapendi ematombo chaiwo anokosha zvikuru. Lacquer yemhando yepamusoro inoumbwa ne 300KG pure styrene-acrylic emulsion, 650KG pure natural rock aqueous solution nezvimwe zvinhu. Lacquer dzemhando yepamusoro dzinoratidzwa nemafuta akawanda anonyorovesa. Kana musanganiswa wemvura we emulsion uri 50%, huwandu hwe 300KG moisturizing emulsion mushure mekuomeswa hunosvika 150 litres, uye huwandu hwe 650KG jecha rinorema hunosvika 228 litres. Izvi zvinoreva kuti, muchiitiko ichi, pendi chaiyo yematombo (ruvara rwekuiswa kwemavara) i60%. Nekuda kwehukuru hwezvimedu uye kutaridzika kusina kurongeka kwejecha rakanaka, pasi pepfungwa yekuongorora saizi yezvimedu, dry exterior wall coating inogona kunge iri padanho re CPVC concentration value).
Kana paine viscosifier, kana cellulose viscosity yakakodzera yakasarudzwa, coating yekunze yemadziro inogona kugadzira pendi yakadzama, yakanyanyisa, kuitira kuti pave nezvikamu zvitatu zve coating yekunze yemadziro. Mitemo mitatu ye coating yekuvaka. Kutaura zvazviri, kushandiswa kwematombo akawanda ehupfumi uye anoshanda, tani ye solvent yakavanzika 100-160kg, 750kg jecha remavara jecha, 20kg (kusanganisira coating additives, mishonga yezvipembenene, fungicides, adhesives, nezvimwewo), zvimwe zvigadzirwa zvekuchengetedza mvura neganda. Rudzi urwu rwependi yematombo yechokwadi PVC inowanzo kuve pakati pe75%? Pakati pe85%, mukushanda kwacho kwaoma, coating yematombo chaiyo yekupenda yakaoma kugadzira pendi yakadzama uye yakasimba. Saka, sei kushandisa zvizere moisturizing emulsion secret recipe effect, kuitira kuti coating ive symmetrical sezvinobvira.
Mapendi ekuvaka ematombo chaiwo ane hunhu hwe low viscosity (high molecular weight). Nekuda kwekuwedzera kwemutengo wezvinhu zve cellulose, viscosity ye cellulose inoshandiswa inochinjwa kubva pa 30000 kuenda pa 50000,80000,100000, kunyangwe ikawedzerwa ne 200000, chinangwa ndechekuderedza huwandu hwese hwe cellulose kubva ku methyl cellulose (HEC) kuenda ku hydroxyl acrylic cellulose (HPMC); Kushandiswa kwe methyl methyl cellulose HPMC kuchaderedza zvakanyanya kudzorwa kwemvura kwependi yekuvaka yematombo chaiwo, uye wobva wavandudza viscosity ye cellulose (relative molecular mass) ichave mhedziso yekushanda kwependi yekuvaka yematombo chaiwo? Mhinduro ndeyekuti kushanda kwependi yematombo kuchawedzera kuipa!
HPMC inogona kukamurwa kuita mhando dzinonyunguduka nekukurumidza uye dzinopisa. Kana mvura inotonhora ikapararira nekukurumidza uye ikadzika mumvura, HPMC inogona kukamurwa kuita mhando dzinonyunguduka nekukurumidza uye dzinopisa. Panguva ino, mvura haina viscosity, nekuti HPMC inongopararira mumvura chete, uye hapana pfungwa chaiyo yekunyunguduka. Mushure memaminitsi angangoita maviri, viscosity yemvura inowedzera zvishoma nezvishoma, ichigadzira mhinduro yakajeka yecolloid. Kana zvinhu zvinopisa zveorganic solvent zvikaungana mumvura inotonhora, zvinogona kupararira nekukurumidza mumvura inopisa uye zvichinyangarika mumvura inopisa. Kana tembiricha yemhepo yadzikira kusvika padanho rekupisa rakati, viscosity inoitika zvishoma nezvishoma kusvika mhinduro yakazara yakajeka yecolloidal yagadzirwa. Rudzi rwe thermal organic solvent runoshandiswa chete mu interior wall putty powder nemortar. Mu liquid superglue ne coatings, pane huwandu husingagone kushandiswa. Rudzi rwe quick-solubility rune general application category. Inogona kushandiswa se interior wall putty powder nemortar, uye liquid superglue ne coatings yayo. Hapana taboo.
Kunyunguduka kwemvura inopisa: nekuti HPMC mumvura inopisa hainyunguduke, saka HPMC iri muchikamu chekutanga inogona kupararira zvakaenzana mumvura inopisa, yozonyunguduka nekukurumidza kana yatonhodzwa. Nzira mbiri dzekare dzinotsanangurwa sedzinotevera:
1) Isa mvura inopisa yaunoda mumudziyo woipisa kusvika pa70℃. Zvishoma nezvishoma sanganisa, wedzera zvishoma nezvishoma hydroxypropyl methyl cellulose, zvishoma nezvishoma HPMC inoyangarara parwizi, wobva wagadzira zvishoma nezvishoma sludge inotonhorera musanganiswa.
2) Wedzera 1/3 kana 2/3 yemvura mumudziyo, ipise kusvika 70℃, ipise kusvika 70℃ kuti uparadzire HPMC, uye gadzira matope emvura inopisa; Mvura inotonhora yasara inowedzerwa mumatope anopisa uye inosanganiswa nemusanganiswa wemvura mushure mekutonhora.
Nzira yekusanganisa upfu: Upfu hweHPMC neblender nezvimwe zvinhu zvakawanda zveupfu zvine makemikari zvinosanganisa zvakakwana, wobva wawedzera mvura kuti inyunguduke. Panguva ino, HPMC inogona kunyungudutswa kana pasina agglomeration, nekuti kona imwe neimwe diki ine upfu hushoma hweHPMC, apo mvura ichanyunguduka pakarepo — nzira iyi ingori yekushandisa vagadziri vemukati memadziro eputty upfu nemortar. [HPMC] semushonga wekugadzirisa uye moisturizing mumortar yeputty yemukati memadziro.
Uyu ndiwo muchetura we hydroxypropyl methyl cellulose (HMPC) wakajairika, uri pedyo nechinhu chinonzi viscoelastic (kunyanya mucin) mumisodzi. Unonamatira pamusoro peziso kuburikidza nekunyungudika kwe polymer, uye unotevedzera basa re conjunctival mucin, kuitira kuti mucin isanyanya kuderera muziso uye kuwedzera kunyorova kwe cornea.
Muupfu hweputty, kukora, kuchengetedza mvura uye kuvaka mabasa matatu. Kukora, cellulose inogona kukora kusvika yamira, kuitira kuti mhinduro irambe yakafanana kumusoro nekudzika sebasa rekudzivirira kuyerera. Kuchengetwa kwemvura: kuita kuti upfu hweputty huome zvishoma nezvishoma, calcium inobatsira mukuita kwekuita kwemvura. Kuvakwa: lubrication yecellulose, inogona kuita kuti upfu hweputty huve nekuvaka kwakanaka. HPMC haibatanidzi mune chero maitiro emakemikari, asi inongotamba basa rekutsigira.
Pendi yemavara inochinjika zvakanyanya pakusarudza ruvara, uye inogona kuwana mhedzisiro yakanaka yekugadzira hunyanzvi, uye pendi chaiyo yematombo mukutsvaga pendi yezvisikwa, iri nani pane pendi yemavara, imwe neimwe ine simba rayo. Pendi yemavara uye lacquer mukugadzirwa, kuti tirambe tiine ruvara rwepakutanga, kazhinji mukuita kwekupedzisira, tinofanira kushandisa varnish (mafuta akareruka) kupfapfaidza kuti tidzivirire mhedzisiro yavo yehunyanzvi kana mhedzisiro yematombo.
Pendi yeLacquer, texture pendi rudzi rwependi, inonyanya kushandiswa pakushongedza madziro. Webhusaiti yepamutemo yedhayatom yemudope yechisikigo inotsanangura mutsauko uripo pakati pependi yetexture nelacquer, texture pendi nelacquer nzira yekuratidza musiyano uripo pakati pependi yelacquer netexture.
Mitengo yakakwira yelatex yemhando yepamusoro, vagadziri kuti vachengetedze mari, ingowedzera huwandu hushoma hwe emulsion, mushure mekuita kuti pendi yematombo ibude yakasununguka, huwandu husina kukwana, firimu rependi riri bibulous rate rakakura, simba rekumanikidza rinoderera, kana wangosangana nemamiriro ekunze anonaya kwenguva yakareba, mvura inonaya inopinda mufirimu rependi, pendi yematombo ichena.
Vamwe vagadziri mukugadzira lacquer, vanowanzo wedzera yakawanda carboxymethyl cellulose, hydroxyethyl cellulose se thickener, zvinhu izvi zvinonyunguduka mumvura kana hydrophilic, firimu rekufukidza rakasiyiwa muchikamu, rinoderedza zvikuru kuramba kwemvura kwejira rekufukidza.
Nguva yekutumira: Chikumi-09-2022