Kuisa putty powder muputty powder kunowanzoreva chiitiko chekuti pamusoro peputty coating inova powder yodonha mushure mekuvakwa, izvo zvinokanganisa simba rekubatanidza putty uye kugara kwenguva refu kwecoating. Ichi chiitiko chekuisa putty chine chekuita nezvinhu zvakawanda, chimwe chazvo ikushandiswa uye kunaka kwehydroxypropyl methylcellulose (HPMC) muputty powder.
1. Basa reHPMC muupfu hweputty
HPMC, sechinhu chinoshandiswa zvakanyanya, inoshandiswa zvakanyanya muzvinhu zvekuvaka, zvinosanganisira putty powder, mortar, glue, nezvimwewo. Mabasa ayo makuru anosanganisira:
Kukora: HPMC inogona kuwedzera kusimba kweputty powder, zvichiita kuti kuvaka kuve kwakapfava uye kudzivirira kutsvedza kana kuyerera kweputty powder panguva yekuvaka.
Kuchengeta mvura: HPMC ine mukana wakanaka wekuchengetedza mvura, izvo zvinogona kuwedzera kushanda kweputty powder uye kudzivirira putty kuti isarasike mvura nekukurumidza panguva yekuomeswa, zvichikonzera kutsemuka kana kuderera.
Kunamira kwakavandudzwa: HPMC inogona kuwedzera kunamira kweputty powder, kuitira kuti ikwanise kunamira zviri nani pamadziro kana pane imwe substrate surface, zvichideredza kuitika kwematambudziko akadai sekuora kwevhu nekudonha.
Kuvandudza mashandiro ekuvaka: Kuwedzera HPMC muupfu hweputty kunogona kuvandudza kuyerera uye purasitiki yekuvaka, kuita kuti mabasa ekuvaka ave nyore, uye kuderedza marara.
2. Zvikonzero zvekupwanywa kweputty powder
Kupwanya putty powder idambudziko rinowanzoitika rine zvikonzero zvakaoma, izvo zvinogona kunge zvakabatana nezvinhu zvinotevera:
Dambudziko re substrate: Kunyudzwa kwemvura kwe substrate kwakasimba zvakanyanya, zvichiita kuti putty irasikirwe nehunyoro nekukurumidza uye iome zvisina kukwana, zvichikonzera kupwanywa.
Dambudziko refomura yeputty: Fomura isina kunaka yeputty powder, yakadai sehuwandu husina kufanira hwezvinhu zvinosimbisa simende (senge simende, gypsum, nezvimwewo), inokanganisa kusimba uye kugara kwenguva refu kweputty.
Dambudziko rekuvaka: Kusagadzirwa zvakanaka, tembiricha yakakwira kana hunyoro hwakaderera zvinogona kukonzera kuti upfu hweputty hupwanyike panguva yekuomeswa.
Kusagadzirisa zvakanaka: Kusagadzirisa putty nenguva mushure mekuvakwa kana kuenderera mberi nekuita kunotevera nguva isati yakwana kunogona kukonzera kuti putty powder ipwanyike isina kuomeswa zvachose.
3. Hukama huripo pakati peHPMC nekupwanya
Sechinhu chinokodza uye chinochengetedza mvura, mashandiro eHPMC muputty powder ane chekuita zvakananga nehunhu hweputty. Simba reHPMC pakugadzira hupfu rinonyanya kuratidzwa muzvinhu zvinotevera:
(1) Simba rekuchengetedza mvura
Kugayiwa kweputty powder kunowanzoenderana nekubuda kwemvura nekukurumidza muputty. Kana huwandu hweHPMC hwakawedzerwa husina kukwana, putty powder inorasikirwa nemvura nekukurumidza panguva yekuomesa uye inotadza kuoma zvizere, zvichikonzera kuti pamusoro payo pave nehupfu. Hunhu hweHPMC hwekuchengetedza mvura hunobatsira putty kuchengetedza hunyoro hwakakodzera panguva yekuomesa, zvichiita kuti putty iome zvishoma nezvishoma uye idzivirire hupfu hunokonzerwa nekurasikirwa nemvura nekukurumidza. Nokudaro, kuchengetedza mvura kweHPMC kwakakosha pakuderedza hupfu.
(2) Simba rekuita kuti kukora kuve kwakanyanya
HPMC inogona kuwedzera kuenderana kweputty powder, kuitira kuti putty ikwanise kunamirwa zvakaenzana kune substrate. Kana mhando yeHPMC isina kunaka kana ikashandiswa zvisina kunaka, inokanganisa kuenderana kweputty powder, zvichiita kuti kuyerera kwayo kuwedzere kuipa, zvichikonzera kusaenzana uye ukobvu husina kuenzana panguva yekuvaka, izvo zvinogona kukonzera kuti putty powder iome nekukurumidza munzvimbo, zvichikonzera hupfu. Pamusoro pezvo, kushandisa HPMC zvakanyanya kuchaitawo kuti pamusoro peputty powder pave pakanyatsotsetseka mushure mekuvakwa, zvichikanganisa kunamira kwependi uye zvichikonzera hupfu hwepamusoro.
(3) Kubatana nezvimwe zvinhu
Muupfu hweputty, HPMC inowanzo shandiswa pamwe chete nezvimwe zvinhu zvinosimbisa simende (zvakaita sesimende, gypsum) uye zvinozadza (zvakaita sehupfu hwecalcium hwakawanda, talcum powder). Huwandu hweHPMC hunoshandiswa pamwe chete nekubatana kwayo nezvimwe zvinhu zvine simba guru pakushanda kweputty. Fomura isina musoro inogona kutungamira kusimba kweputty uye pakupedzisira inotungamira kuhupfu. Kushandiswa kweHPMC zvine mwero kunogona kubatsira kuvandudza kushanda kwebonding uye simba reputty uye kuderedza dambudziko rehupfu hunokonzerwa nekusakwana kana kusaenzana kwezvinhu zvinosimbisa simende.
4. Matambudziko emhando yeHPMC anokonzera kupiswa kwehupfu
Pamusoro pehuwandu hweHPMC hunoshandiswa, hunhu hweHPMC pachayo hunogonawo kukanganisa mashandiro eputty powder. Kana hunhu hweHPMC husiri hwepamusoro, senge kuchena kwecellulose uye kusashanda zvakanaka kwemvura, zvinokanganisa zvakananga kuchengetwa kwemvura, mashandiro ekuvaka uye simba reputty powder, uye zvinowedzera njodzi yehupfu. HPMC yakaderera haisi kungoomera kuchengetedza mvura uye kukora kwayo, asi inogonawo kukonzera kutsemuka kwepadenga, hupfu uye mamwe matambudziko panguva yekuomesa putty. Saka, kusarudza HPMC yepamusoro kwakakosha kudzivirira matambudziko ehupfu.
5. Mhedzisiro yezvimwe zvinhu pakugadzira hupfu
Kunyangwe HPMC iine basa rakakosha muputty powder, kupurwa kwehupfu kunowanzo konzerwa nekubatanidzwa kwezvinhu zvakawanda. Zvinhu zvinotevera zvinogonawo kukonzera kupurwa kwehupfu:
Mamiriro ekunze: Kana tembiricha nehunyoro hwenzvimbo yekuvaka zvakakwira zvakanyanya kana kuti zvakaderera zvakanyanya, zvinokanganisa kumhanya kwekuomesa uye kushanda kwekupedzisira kweputty powder.
Kurapa kwesubstrate zvisina kunaka: Kana substrate isina kuchena kana pamusoro pesubstrate pakatora mvura yakawandisa, zvinokanganisa kunamira kweputty powder uye zvinokonzera hupfu.
Fomura yeupfu hweputty isina kurongeka: HPMC yakawandisa kana kuti shoma inoshandiswa, uye huwandu hwezvinhu zvinosimbisa simende hauna kunaka, izvo zvinozoita kuti upfu hweputty husanyatsobatana uye husashande zvakanaka, zvichiita kuti hupfu husashande zvakanaka.
Kugadzira hupfu hweputty powder kwakabatana zvakanyanya nekushandiswa kweHPMC. Basa guru reHPMC muputty powder kuchengetedza mvura nekukora. Kushandiswa zvine mwero kunogona kudzivirira kuitika kwehupfu. Zvisinei, kuitika kwehupfu hakungotsamiri paHPMC chete, asiwo pazvinhu zvakaita sefomula yeputty powder, kurapwa kwesubstrate, uye nzvimbo yekuvaka. Kuti udzivise dambudziko rehupfu, zvakakoshawo kusarudza HPMC yemhando yepamusoro, dhizaini yefomula inonzwisisika, tekinoroji yesainzi yekuvaka uye nzvimbo yakanaka yekuvaka.
Nguva yekutumira: Gumiguru-15-2024