Pane zvipingamupinyi pakuvandudza mashandiro e gypsum paste nekusanganisa kamwe chete. Kana mashandiro e gypsum mortar achizobudirira uye achizadzisa zvinodiwa zvakasiyana, makemikari, zvinosanganisa, zvinozadza nezvimwe zvinhu zvakasiyana-siyana zvinodiwa kuti zvisanganisirwe uye zvienderane nesainzi uye zvine musoro.
1. Chinovhara
Kudzora kuungana kwemvura kunonyanya kukamurwa kuva retarder necoagulant. Mugesso dry mix mortar, chigadzirwa chinoshandisa gesso yakabikwa kugadzira zvese chinoshandisa kunonoka kuungana kwemvura, shandisa anhydrous gesso kana chigadzirwa chinoshandisa 2 water gesso kugadzira zvakananga chinofanira kukurudzira kuungana kwemvura.
2. Muchengeti wezvinhu
Nekuwedzera retarder kune gypsum dry mixed building building, hydration process ye semi-hydrous gypsum inodziviswa uye nguva yekusimba inowedzerwa. Mvura yegypsum plaster yakasiyana-siyana, kusanganisira kuumbwa kwe gypsum plaster, tembiricha yezvinhu zvegypsum, kupfava kwezvikamu, nguva yekuisa uye pH kukosha kwechigadzirwa chapera. Chinhu chimwe nechimwe chine simba rakati pamhedzisiro yekunonoka, saka pane mutsauko mukuru muhuwandu hwe retarding agent mumamiriro akasiyana. Parizvino, gypsum special retarder iri nani ndeye metamorphic protein (high protein) retarder, ine mabhenefiti emutengo wakaderera, nguva refu yekunonoka, kurasikirwa nesimba kudiki, kuvaka kwakanaka, nguva refu yekuvhura nezvimwewo. Mumhando yepasi ye stucco gypsum kugadzirira huwandu hunowanzova mu 0.06% ~ 0.15%.
3. Chinovhara
Kukurumidzisa nguva yekukurunga slurry uye kuwedzera kumhanya kwekukurunga slurry ndeimwe yenzira dzepanyama dzekusimudzira kugwinya. Makemikari anoshandiswa muzvinhu zvekuvaka zve anhydrous gypsum powder i potassium chloride, potassium silicate, sulfate nedzimwe acids. Chiyero chinowanzova 0.2% ~ 0.4%.
4. Chinhu chinochengetedza mvura
Zvinhu zvekuvaka zveGesso dry mix hazvigone kusiya chinhu chinodzivirira mvura. Kuti uvandudze mwero wekuchengetedza mvura yegypsum product slurry, unenge uine chokwadi chekuti mvura inogona kugara mugypsum slurry kwenguva yakareba kuitira kuti uwane mvura yakakwana uye kuomarara. Kuvandudza kugona kwekuvaka zvinhu zvekuvaka zvegypsum powder, kuderedza nekudzivirira kupatsanurwa uye kubuda ropa kwegypsum slurry, kuvandudza kuyerera kweslurry, kuwedzera nguva yekuvhura, kugadzirisa matambudziko emhando yeinjiniya akadai sekutsemuka uye drum risina chinhu hazviparadzanisike kubva kune chinhu chinochengetedza mvura. Kuti chinhu chinochengetedza mvura chakakodzera here zvinoenderana nekupararira kwacho, kukurumidza kunyunguduka, kuumbwa, kugadzikana kwekupisa uye kukora, pakati pazvo kuchengetedza mvura ndicho chinhu chinonyanya kukosha.
Mushonga wekuchengetedza mvura weCellulose ether
Parizvino, hydroxypropyl methyl cellulose ndiyo inonyanya kushandiswa pamusika, ichiteverwa nemethyl cellulose, uye carboxymethyl cellulose. Hunhu hwakazara hwehydroxypropyl methyl cellulose huri nani pane methyl cellulose. Kuchengetwa kwemvura kwehydroxypropyl methyl cellulose kwakanyanya kupfuura kwecarboxymethyl cellulose, asi mhedzisiro yekukora uye mhedzisiro yekubatana kwakaipa kupfuura kwecarboxymethyl cellulose. Muzvinhu zvekuvaka zvakasanganiswa negypsum dry, huwandu hwehydroxypropyl nemethyl cellulose huri pakati pe0.1% ~ 0.3%, uye huwandu hwecarboxymethyl cellulose huri pakati pe0.5% ~ 1.0%.
Chinhu chinochengetedza mvura yestarch
Chigadzirwa cheStarch chinodzivirira mvura chinoshandiswa zvakanyanya pa gesso be putty mumwana, face layer model stucco gesso, inogona kutsiva chikamu kana huwandu hwese cellulose chinodzivirira mvura. Kushanda, kugadzirwa uye kuenderana kweslurry kunogona kuvandudzwa nekuwedzera starch mvura inochengetedza mvura pazvinhu zvekuvaka zve gypsum dry. Zvigadzirwa zvestarch zvinochengetedza mvura zvinoshandiswa zvakanyanya zvinosanganisira cassava starch, pre gelatinized starch, carboxymethyl starch, carboxypropyl starch. Chigadzirwa cheStarch chinodzivirira mvura chinofanirwa kunge chiri mu0.3% ~ 1% kazhinji, kana chiyero chakanyanya kukura chinoita kuti chigadzirwa cheGesso chibudise mildew pasi penzvimbo ine hunyoro, zvichikanganisa mhando yeprojekiti zvakananga.
③ Chinhu chinochengetedza mvura chemhando yeglue
Mamwe maglue anonamira anogonawo kuita basa riri nani mukuchengetedza mvura. Sezvakaita 17-88, 24-88 polyvinyl alcohol powder, green gum uye guar gum zvinoshandiswa pakubatanidza gypsum, gypsum putty, gypsum insulation glue nezvimwe zvinhu zvekuvaka zvakasanganiswa negypsum dry, mune imwe nhamba yekesi, zvinogona kuderedza huwandu hwe cellulose water retention agent. Kunyanya mu gypsum inonamira nekukurumidza, inogona kutsiva cellulose ethers mune dzimwe nguva.
(4) Zvinhu zvinochengetedza mvura zvisina makemikari
Kushandiswa kwezvimwe zvinhu zvinochengetedza mvura zvakasanganiswa mu gypsum dry mixed building building kunogona kuderedza huwandu hwezvimwe zvinhu zvinochengetedza mvura, kuderedza mutengo wezvigadzirwa, uye kuvandudza kushanda uye kugadzirwa kwe gypsum slurry. Zvinhu zvinowanzoshandiswa kuchengetedza mvura zvisina kugadzirwa zvinosanganisira bentonite, kaolin, diatomite, zeolite powder, perlite powder, attapulgite clay, nezvimwewo.
5. Namira
Kushandiswa kweglue muzvinhu zvekuvaka zvakasanganiswa negypsum dry hakungobatsiri pane chinhu chinochengetedza mvura uye chinodzoreredza mvura. Gesso self leveling mortar, adhesive gesso, caulking gesso, heat preservation gesso glue haigone kusiya chinhu chinonamira.
Upfu hwelatex hunonyungudika zvakare:
Upfu hwelatex hunodzokororwa hunoshandiswa zvakanyanya mu gypsum self-leveling mortar, gypsum insulation glue, gypsum caulking putty nezvimwewo. Kunyanya mu gypsum self-leveling mortar, inogona kuita kuti slurry viscidity, fluidity yakanaka, kuderedza stratification, kudzivirira kubuda ropa, kuvandudza crack resistance nezvimwewo zvakaitawo basa guru. Kushandiswa kunowanzova 1.2% ~ 2.5%.
Doro repolyvinyl rinonwiwa panguva imwe chete:
Parizvino, polyvinyl alcohol yakanyungudutswa pakarepo ine dosi yakawanda pamusika i24-88, 17-88 chigadzirwa chemamodeli maviri, anowanzo shandiswa pa plaster inonamira, gesso, gesso compound heat preservation glue, stucco plaster nezvimwe zvigadzirwa, dosi iri mu0.4% ~ 1.2% kazhinji.
Guar gum, field gelatin, carboxymethyl cellulose, starch ether nezvimwewo zvinonamatira zvine mabasa akasiyana ekubatanidza muzvinhu zvekuvaka zvakasanganiswa negypsum dry.
6. Chinokora
Kukora kunonyanya kuitirwa kuvandudza kushanda uye kuyerera kwe gypsum slurry, iyo yakafanana ne glue uye mvura inochengetedza, asi kwete zvachose. Chimwe chigadzirwa chekukora chakanaka mukukora, asi kuremekedza hakusi kwakakodzera mukubatana nesimba, mwero wekuchengetedza mvura. Pakugadzira zvinhu zvekuvaka zve gypsum dry powder, mhedzisiro huru yekusanganiswa inofanira kufungwa zvizere kuitira kuti kusanganiswa kuiswe zviri nani uye zvine musoro. Zvigadzirwa zve thickener zvinowanzoshandiswa ndezve polyacrylamide, green gum, guar gum, carboxymethyl cellulose.
7. Mushonga wekufema
Mushonga wekufema unozivikanwawo semushonga wefuro, unonyanya kushandiswa mukugadzira gypsum insulation glue, plaster plaster nezvimwe zvinhu zvekuvaka zvakasanganiswa negypsum dry. Mushonga wekufema unobatsira kuvandudza kuvaka, kuramba kutsemuka, kuramba chando, kuderedza kubuda ropa uye kupatsanurwa, uye chiyero chinowanzova 0.01% ~ 0.02%.
8. Mushonga wekubvisa tsvina
Mushonga wekubvisa manyoka unowanzoshandiswa pakugadzira simbi ye gesso, inogona kuwedzera huwandu hwesimbi, simba, kuramba mvura, uye huwandu hwesimbi ye caking, uye chiyero chiri pakati pe0.02% ne0.04%.
9. Chinhu chinodzikisa mvura
Mushonga wekuderedza mvura unogona kuvandudza kuyerera kwejesso slurry uye simba remuviri regesso rinoomesa, kazhinji pagesso self leveling mortar, stucco gesso. Parizvino, mushonga wekuderedza mvura wepamba imushonga wekuderedza mvura we polycarboxylic acid, mushonga wekuderedza mvura we melamine, mushonga wekuderedza mvura we high-efficiency, mushonga wekuderedza mvura we lignosulfonate zvichienderana nekuyerera uye simba. Pamusoro pekushandiswa kwemvura nesimba, zvakakosha kutarisisa nguva yekuiswa uye kurasikirwa kwekuyerera kwezvinhu zvekuvaka zve gypsum pakushandisa mushonga wekuderedza mvura mu gypsum dry mixed building building.
10. Mushonga wekudzivirira mvura
Dambudziko guru rezvigadzirwa zvegypsum nderekusakwanisa kunyura mumvura. Nzvimbo ine hunyoro hwakawanda hwemhepo ine zvinodiwa zvakanyanya zvekusagona kunyura mvura yedhaka rakasanganiswa negypsum. Kazhinji, kusagona kunyura mumvura kwemuviri wakaomeswa negypsum kunovandudzwa nekuwedzera kusanganiswa kwe hydraulic. Pasi pemvura yakanyorova kana yakasviba, kunyorovesa kwemuviri wakaomeswa negypsum kunogona kusvika 0.7, kuitira kuti zvienderane nezvinodiwa zvesimba rechigadzirwa. Kusanganiswa kwemakemikari kunogonawo kushandiswa kuderedza kunyunguduka kwegypsum (ndiko kuti, kuwedzera kunyorovesa kwecoefficient), kuderedza kunyudzwa kwegypsum mumvura (ndiko kuti, kuderedza kunyudzwa kwemvura) uye kuderedza kuputsika kwemuviri wakaomeswa negypsum (ndiko kuti, kupatsanurwa kwemvura) nzira yekudzivirira mvura. Gypsum waterproof agent ine ammonium borate, methyl sodium silicate, silicone resin, milk fossil wax, mhedzisiro yacho iri nani uye silicone emulsion waterproof agent.
11. Chinosimudzira kushanda
Gypsum yechisikigo nemakemikari isina mvura inogona kushandiswa kuti inamire uye ive yakasimba, kuitira kuti ikwanise kugadzirwa kwezvinhu zvekuvaka zvakasanganiswa negypsum yakaoma. Acid activator inogona kukurumidzisa mwero wekutanga wemvura yegypsum isina mvura, kupfupisa nguva yekuisa uye kuvandudza simba rekutanga remuviri wakaomeswa negypsum. Alkaline activator haina simba guru pahuwandu hwemvura yekutanga yegypsum isina mvura, asi zviri pachena kuti inogona kuvandudza simba rekupedzisira remuviri wakaomeswa negypsum, uye inogona kuita chikamu chezvinhu zve hydraulic cementing mumuviri wakaomeswa negypsum, izvo zvinobudirira kuvandudza kuramba kwemvura kwemuviri wakaomeswa negypsum. Mhedzisiro yekushandisa yeacid-base compound activator iri nani pane ye single acid kana basic activator. Acid activators inosanganisira potassium alum, sodium sulfate, potassium sulfate nezvimwewo. Alkaline activators inosanganisira quicklime, simende, cement clinker, calcined dolomite nezvimwewo.
Mafuta eThixotropic
Mafuta eThixovariable anoshandiswa mu gypsum inodzikisa gypsum kana stuccoing gypsum, izvo zvinogona kuderedza kuramba kwemvura ye gypsum mortar, kuwedzera nguva yekuvhura, kudzivirira kupatsanurwa uye kugara kwe slurry, kuitira kuti slurry iwane mafuta akanaka uye kuvaka kwakanaka, ukuwo ichiita kuti chimiro chemuviri chakaomarara chifanane, uye kuwedzera simba repamusoro payo.
Nguva yekutumira: Chivabvu-25-2022