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 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, kwisixa esithile semeko, inokunciphisa inani le-arhente yokugcina amanzi aselulosi. 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, iglue yokugcinwa kobushushu edibeneyo, i-stucco plaster kunye nezinye iimveliso, umthamo ukwi-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 kwemeko yamanzi amanzi okanye agcweleyo, i-coefficient ethambileyo ye-gypsum eqinile yomzimba inokufikelela 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 ukunyuswa kwamanzi) kunye nokunciphisa ukukhukuliseka kwe-gypsum lukhuni umzimba (oko kukuthi, ukwahlukaniswa kwamanzi) 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 inesiphumo esincinci kwireyithi ye-hydration ye-anhydrous gypsum, kodwa ngokuqinisekileyo inokuphucula amandla kamva womzimba oqinileyo we-gypsum, kwaye inokuba yinxalenye yemathiriyeli yesamente ye-hydraulic kumzimba oqinileyo we-gypsum, ophucula ngokufanelekileyo ukuxhathisa kwamanzi kwi-gypsum lukhuni umzimba. 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
ilubricant Thixovariable isetyenziswa gypsum self-leveling okanye stuccoing gypsum, enokunciphisa ukuchasana ukuhamba kodaka gypsum, ukwandisa ixesha lokuvula, ukuthintela stratification kunye nokuhlaliswa ludaka, ukuze wenze uludaka ukufumana ukuthambisa okulungileyo kunye nokwakhiwa, lo gama wenza lukhuni isakhiwo umzimba, ukwandisa amandla ayo phezu komhlaba.
Ixesha lokuposa: May-25-2022