Kukho imida ekuphuculeni ukusebenza kwe-gypsum paste nge-admixture enye.Ukuba ukusebenza kwe-gypsum mortar kukufikelela kwiziphumo ezanelisayo kwaye kuhlangatyezwane neemfuno zezicelo ezahlukeneyo, iikhemikhali ezixubeneyo, i-admixtures, iifayili kunye nezinto ezahlukeneyo ezifunekayo ukuze zidibanise kwaye zincedisane ngokwesayensi nangengqiqo.
1. I-coagulant
Ukulawula i-coagulant yohlulwe kakhulu kwi-retarder kunye ne-coagulant.Kwi-gesso eyomileyo yomxube wodaka, imveliso esebenzisa i-gesso ephekiweyo ukwenza zonke izinto ezisetyenziselwa ukulibaziseka i-agent ye-coagulate, sebenzisa i-gesso ye-anhydrous okanye imveliso esebenzisa i-2 yamanzi gesso ukwenza ngokuthe ngqo iimfuno zokukhuthaza i-agent ye-coagulate.
2. Umnciphisi
Ngokongeza i-retarder kwi-gypsum eyomileyo yezinto zokwakha ezixubeneyo, inkqubo ye-hydration ye-semi-hydrous gypsum iyathintelwa kwaye ixesha lokuqinisa lide.Iimeko ze-hydration ze-gypsum plaster ziyahlukahluka, kubandakanywa ukubunjwa kwesigaba se-gypsum plaster, ubushushu bezinto ze-gypsum, i-particle fineness, ixesha lokubeka kunye nexabiso le-pH yemveliso egqityiweyo.Inqaku ngalinye linempembelelo ethile kwisiphumo sokuhlehla, ngoko ke kukho umahluko omkhulu kwixabiso le-arhente ebambezelayo phantsi kweemeko ezahlukeneyo.Okwangoku, i-gypsum yasekhaya engcono i-retarder ekhethekileyo ye-metamorphic protein (iprotheni ephezulu) i-retarder, ineenzuzo zeendleko eziphantsi, ixesha elide lokuhlehla, ukulahlekelwa kwamandla amancinci, ukwakhiwa kakuhle, ixesha elide lokuvula njalo njalo.Kuhlobo olusezantsi lwe-stucco gypsum isixa sokulungiselela ngokubanzi sikwi-0.06% ~ 0.15%.
3. I-coagulant
Ukukhawulezisa ixesha lokuvuselela i-slurry kunye nokwandisa isantya esishukumisayo se-slurry yenye yeendlela zomzimba zokukhuthaza ukudibanisa.Iikhemikhali ze-coagulants ezisetyenziswa ngokuqhelekileyo kwi-anhydrous gypsum powder zokwakha i-potassium chloride, i-potassium silicate, i-sulfate kunye nezinye i-acids.Idosi ngokubanzi yi-0.2% ~ 0.4%.
4. I-arhente yokugcina amanzi
Izinto zokwakha ze-Gesso ezomileyo azikwazi ukushiya ukukhusela i-arhente yamanzi.Ukuphucula izinga lokugcinwa kwamanzi kwi-slurry yemveliso ye-gypsum kukuqinisekisa ukuba amanzi anokubakho kwi-gypsum slurry ixesha elide ukuze kufumaneke i-hydration efanelekileyo kunye nesiphumo sokuqina.Ukuphucula ukwakhiwa kwezinto zokwakha ze-gypsum powder, ukunciphisa kunye nokuthintela ukuhlukana kunye nokuphuma kwegazi kwe-gypsum slurry, ukuphucula ukuhamba kwe-slurry ukuxhoma, ukwandisa ixesha lokuvula, ukuxazulula iingxaki zobunjani bobunjineli ezifana nokuqhekeka kunye ne-drum engenanto ayinakuhlukaniswa kwi-arhente yokugcina amanzi.Ingaba i-ejenti yokugcina amanzi ifanelekile kuxhomekeke kwi-dispersibility yayo, ukunyibilika ngokukhawuleza, ukubumba, ukuzinza kwe-thermal kunye nokuqina, phakathi kwayo ukugcinwa kwamanzi kuyona mqondiso obalulekileyo.
I-ether ye-cellulose yokugcina amanzi i-arhente yokugcina amanzi
Okwangoku, i-hydroxypropyl methyl cellulose yeyona nto isetyenziswa kakhulu kwintengiso, ilandelwa yi-methyl cellulose, kunye ne-carboxymethyl cellulose.Iipropati ezibanzi ze-hydroxypropyl methyl cellulose zingcono kune-methyl cellulose.Ukugcinwa kwamanzi kwe-hydroxypropyl methyl cellulose kuphezulu kakhulu kune-carboxymethyl cellulose, kodwa umphumo wokuqina kunye nefuthe le-bonding libi kakhulu kune-carboxymethyl cellulose.Kwizinto zokwakha ezixubeneyo ze-gypsum ezomileyo, inani le-hydroxypropyl kunye ne-methyl cellulose likuluhlu lwe-0.1% ~ 0.3%, kwaye inani le-carboxymethyl cellulose likuluhlu lwe-0.5% ~ 1.0%.
I-agent yokugcina amanzi yesitatshi
Uhlobo lwesitatshi lukhusela iarhente yamanzi ngokusisiseko isetyenziswa e-gesso ibe yiputty emntwaneni, imodeli yobuso be-stucco gesso, inokutshintsha inxenye okanye iphelele uhlobo lweselulosi lukhusela i-arhente yamanzi.Ukusebenza, ukwakhiwa kunye nokuhambelana kwe-slurry kunokuphuculwa ngokudibanisa i-agent egcina amanzi e-starch kwi-gypsum dry building materials.Iimveliso ze-agent ezisetyenziswa ngokuqhelekileyo kwi-starch yokugcina amanzi yi-cassava starch, i-pre gelatinized starch, i-carboxymethyl starch, i-carboxypropyl starch.Uhlobo lwesitatshi lukhusela idosi yomenzeli wamanzi ukuba lube kwi-0.3% ~ 1% eqhelekileyo, ukuba ithamo lilikhulu kakhulu intlanganiso yenza imveliso yegesso ivelise isiganeko sokungunda ngaphantsi kokusingqongileyo okufumileyo, ichaphazela umgangatho weprojekthi ngokuthe ngqo.
③ Uhlobo lweglue egcina amanzi
Ezinye izinto ezincamathelayo ngoko nangoko zinokudlala indima engcono ekugcineni amanzi.Okufana ne-17-88, i-24-88 i-polyvinyl alcohol powder, i-green gum kunye ne-guar gum esetyenziselwa ukudibanisa i-gypsum, i-gypsum putty, i-gypsum insulation glue kunye nezinye izinto zokwakha ezixutywe nge-gypsum ezomileyo, kwisixa esithile setyala, kunokunciphisa inani le-gypsum. i-cellulose i-arhente yokugcina amanzi.Ngokukodwa kwi-gypsum encamathela ngokukhawuleza, inokutshintsha i-cellulose ethers kwezinye iimeko.
(4) Izinto ezigcina amanzi kwi-inorganic
Ukusetyenziswa kwezinye izinto ezidibeneyo zokugcinwa kwamanzi kwi-gypsum eyomileyo yezinto zokwakha ezixubileyo kunokunciphisa inani lezinye izinto zokugcina amanzi, ukunciphisa iindleko zeemveliso, kunye nokuphucula ukusebenza kunye nokwakhiwa kwe-gypsum slurry.Izinto ezisetyenziswa ngokuqhelekileyo zokugcina amanzi angabonakaliyo yi-bentonite, i-kaolin, i-diatomite, i-zeolite powder, i-perlite powder, i-attapulgite clay, njl.
5. Ukuncamathelisa
Ukusetyenziswa kwe-adhesive kwi-gypsum eyomileyo yezinto zokwakha ezixubileyo zingaphantsi kuphela kwi-arhente yokugcina amanzi kunye ne-retarder.I-Gesso self leveling udaka, i-gesso enamathelayo, i-caulking gesso, ukugcinwa kobushushu be-gesso glue ayikwazi ukushiya i-adhesive agent.
I-latex powder enokuchithwa kwakhona:
I-latex powder ephinda isetyenziswe isetyenziswa ngokubanzi kwi-gypsum self-leveling mortar, iglue ye-gypsum insulation, i-gypsum caulking putty njalo njalo.Ngokukodwa kwi-gypsum self-leveling mortar, inokwenza i-slurry viscidity, i-fluidity enhle, ukunciphisa i-stratification, ukuphepha ukopha, ukuphucula ukumelana nokuqhekeka kunye nokunye kwakhona kudlale indima enkulu.Ukusetyenziswa ngokuqhelekileyo yi-1.2% ~ 2.5%.
Utywala bepolyvinyl ngoko nangoko:
Okwangoku, i-polyvinyl alcohol enyibilikayo ngoko nangoko kunye nedosi engaphezulu kwimarike yi-24-88, 17-88 imveliso yeemodeli ezimbini, ehlala isetyenziswa kwi-adhesive plaster, gesso, gesso compound yeglue yokugcina ubushushu, i-stucco plaster kunye nezinye iimveliso. kwi-0.4% ~ 1.2% eqhelekileyo.
I-Guar gum, i-gelatin yasendle, i-carboxymethyl cellulose, i-ether ye-starch kunye nezinye izinto ezincamathelayo ezinemisebenzi eyahlukeneyo yokudibanisa kwi-gypsum eyomileyo yezinto zokwakha ezixubeneyo.
6. Thickener
Ukutyeba ikakhulu kukuphucula ukusebenza kunye ne-fluidity ye-gypsum slurry, efana ne-adhesive kunye ne-arhente yokugcina amanzi, kodwa kungekhona ngokupheleleyo.Enye imveliso ye-agent etyebisayo ilungile kwisiphumo sokuhlonipha, kodwa intlonipho ayifanelekanga kumandla adibeneyo, izinga lokugcinwa kwamanzi.Xa usenza i-gypsum eyomileyo yomgubo wokwakha izinto zokwakha, umphumo oyintloko we-admixture kufuneka uqwalaselwe ngokupheleleyo ukwenzela ukuba kusetyenziswe i-admixture engcono kwaye ngokufanelekileyo.Iimveliso ze-thickener ezisetyenziswa ngokuqhelekileyo ziyi-polyacrylamide, i-green gum, i-guar gum, i-carboxymethyl cellulose.
7. I-arhente yokungenisa umoya
I-arhente yokungenisa umoya ikwabizwa ngokuba yi-arhente ekhupha ugwebu, ikakhulu esetyenziswa kwiglu kwi-gypsum insulation glue, udaka lwesamente kunye nezinye izixhobo zokwakha ezixubeneyo zegypsum.I-ejenti yokungenisa umoya (i-agent egwebu) inceda ekuphuculeni ukwakhiwa, ukumelana nokuqhekeka, ukuxhathisa iqabaka, ukunciphisa ukopha kunye nokwahlula isiganeko, i-dosage ngokubanzi i-0.01% ~ 0.02%.
8. Iarhente yokukhupha amagwebu
I-arhente yokukhupha amagwebu isoloko isetyenziswa kwi-gesso self-leveling mortar, gesso caulking be putty in, inokunyusa ingxinano ye-pulp yezinto eziphathekayo, amandla, ukunganyangeki kwamanzi, i-caking sex, idosi ikwi-0.02% ~ 0.04% eqhelekileyo.
9. I-arhente yokunciphisa amanzi
Ukunciphisa i-arhente yamanzi kunokuphucula i-gesso slurry fluidity kunye ne-gesso eqinisa amandla omzimba, ngokuqhelekileyo kwi-gesso self leveling mortar, stucco gesso.Okwangoku, iarhente yokunciphisa amanzi asekhaya yi-polycarboxylic acid ebambezela ukuncipha kwamanzi, i-melamine i-arhente yokunciphisa amanzi esebenza kakuhle kakhulu, inkqubo yeti esebenza kakuhle kakhulu yokunciphisa amanzi, i-lignosulfonate i-arhente yokunciphisa amanzi ngokobumanzi kunye nesiphumo samandla.Ukongeza kokusetyenziswa kwamanzi kunye namandla, kuyimfuneko ukubeka ingqalelo kwixesha lokumisela kunye nokulahlekelwa kwe-fluidity yezinto zokwakha ze-gypsum xa usebenzisa i-agent yokunciphisa amanzi kwi-gypsum eyomileyo yezinto zokwakha ezixutywe.
10. I-arhente yokuthintela amanzi
Esona siphene sikhulu seemveliso zegypsum kukunganyangeki kakuhle kwamanzi.Indawo enomswakama omkhulu womoya ineemfuno eziphezulu zokuxhathisa amanzi kwi-gypsum exutywe nodaka olomileyo.Ngokubanzi, ukuxhathisa kwamanzi kwi-gypsum yomzimba owenziwe lukhuni kuyaphuculwa ngokongeza i-hydraulic admixture.Ngaphantsi kweemeko zamanzi amanzi okanye agcweleyo, i-coefficient ethambileyo ye-gypsum yokuqina komzimba ingafikelela kwi-0.7, ukwenzela ukuba ihlangabezane neemfuno zamandla emveliso.Imixube yeekhemikhali ingasetyenziselwa ukunciphisa ukunyibilika kwegypsum (oko kukuthi, ukonyusa i-coefficient yokuthambisa), ukunciphisa ukufunxwa kwegypsum emanzini (oko kukuthi, ukunciphisa ukufunxwa kwamanzi) kunye nokunciphisa ukukhukuliseka kwegypsum lukhuni umzimba (oko kukuthi, amanzi. isolation) indlela yokumelana namanzi.I-agent ye-Gypsum engenamanzi ine-ammonium borate, i-methyl sodium silicate, i-silicone resin, i-wax ye-fossil yobisi, umphumo ungcono kunye ne-agent ye-silicone emulsion engenamanzi.
11. I-activator esebenzayo
I-gypsum yendalo kunye neekhemikhali ye-anhydrous inokuthi isebenze ukuze iyenze incangathi kwaye yomelele, ukuze ilungele ukuveliswa kwe-gypsum eyomileyo yezinto zokwakha ezixutywe.I-activator ye-Acid inokukhawulezisa isantya sangaphambi kokuqukunjelwa kwe-gypsum ye-anhydrous, inciphise ixesha lokumisela kwaye iphucule amandla okuqala omzimba owenziwe lukhuni wegypsum.I-activator yealkaline inefuthe elincinane kwisantya sokuqala sokuginyelelwa kwe-gypsum anhydrous, kodwa ngokucacileyo inokuphucula amandla amva e-gypsum yomeleleyo yomzimba, kwaye inokuba yinxalenye yemathiriyeli yesamente ye-hydraulic kumzimba oqinileyo we-gypsum, ophucula ngokufanelekileyo ukuxhathisa kwamanzi kwi-gypsum yomzimba olukhuni. .Isiphumo sokusetyenziswa kwe-acid-base compound activator ingcono kune-asidi enye okanye i-activator esisiseko.I-Acid activators ibandakanya i-potassium alum, i-sodium sulfate, i-potassium sulfate kunye nokunye.I-alkaline activators ibandakanya i-quicklime, i-samente, i-cement clinker, i-calcined dolomite kunye nokunye.
Thixotropic lubricant
I-lubricant Thixovariable isetyenziselwa igypsum yokuzimela okanye i-gypsum stuccoing, enokunciphisa ukuchasana kokuhamba kodaka lwegypsum, ukwandisa ixesha lokuvula, ukuthintela ukucwangciswa kunye nokuhlaliswa kodaka, ukuze wenze i-slurry ifumane ukuthambisa okulungileyo kunye nokwakhiwa, ngelixa usenza i-slurry. lukhuni isakhiwo umzimba iyunifomu, ukwandisa amandla ayo phezu komhlaba.
Ixesha lokuposa: May-25-2022