I-Cellulose ether yi-non-ionic semi-synthetic high molecular polymer, e-soluble emanzini kunye ne-solvent-soluble. Ineempembelelo ezahlukeneyo kumashishini ahlukeneyo. Umzekelo, kwizinto zokwakha iikhemikhali, zineempembelelo ezidibeneyo zilandelayo:
① umenzeli ogcina amanzi ②Thickener ③Ipropathi yokulinganisa ④ipropathi yokwenza ifilim ⑤Binder
Kwishishini le-polyvinyl chloride, i-emulsifier kunye ne-dispersant; kwishishini lamachiza, liyi-binder kunye nesikhokelo sokukhululwa esicothayo nesilawulwayo, njl. Ngenxa yokuba i-cellulose ineempembelelo ezahlukeneyo ezidibeneyo, ukusetyenziswa kwayo Intsimi nayo ininzi kakhulu. Oku kulandelayo kugxininise ekusebenziseni kunye nomsebenzi we-cellulose ether kwizinto ezahlukeneyo zokwakha.
(1) Kwipeyinti yelatex:
Kwishishini lepeyinti ye-latex, ukukhetha i-cellulose ye-hydroxyethyl, ukucaciswa ngokubanzi kwe-viscosity elinganayo yi-RT30000-50000cps, ehambelana nokucaciswa kwe-HBR250, kunye ne-reference dosage ngokubanzi malunga ne-1.5 ‰-2‰. Umsebenzi ophambili we-hydroxyethyl kwipeyinti ye-latex kukujiya, ukuthintela i-gelation ye-pigment, ukunceda ukusasazwa kwe-pigment, ukuzinza kwe-latex, kunye nokwandisa i-viscosity yamacandelo, okunegalelo ekusebenzeni komgangatho wokwakha: Iselulosi yeHydroxyethyl ilungele ukusetyenziswa. Inokuchithwa emanzini abandayo kunye namanzi ashushu, kwaye ayichaphazeli ixabiso le-pH. Ingasetyenziswa ngokukhuselekileyo phakathi kwexabiso le-PI 2 kunye ne-12. Iindlela zokusetyenziswa zezi zilandelayo:
I. Yongeza ngokuthe ngqo kwimveliso: le ndlela kufuneka ikhethe i-hydroxyethyl cellulose uhlobo lokulibaziseka, kunye ne-hydroxyethyl cellulose kunye nexesha lokuchithwa kwexesha elingaphezu kwemizuzu engama-30, amanyathelo okusetyenziswa kwawo alandelayo:
①Lungisa ubungakanani bamanzi asulungekileyo kwisikhongozelo esine-hear-chear agitator
②Qala ukushukumisa ngokuqhubekayo ngesantya esiphantsi, kwaye kwangaxeshanye kancinci wongeza i-hydroxyethyl kwisisombululo ngokulinganayo.
③Qhubeka ushukumisa de zonke izixhobo zegranular zimanziswe
④ Yongeza ezinye izongezo kunye nezongezo ezisisiseko, njl.
⑤ Gxuma de kube onke amaqela e-hydroxyethyl achithwa ngokupheleleyo, emva koko wongeza amanye amacandelo kwifomula, kwaye ugaye de kube yimveliso egqityiweyo.
Ⅱ. Ixhotyiswe ngotywala boomama ukuze isetyenziswe kamva: Le ndlela inokukhetha i-cellulose ekhawulezileyo, enefuthe lokulwa nokungunda. Inzuzo yale ndlela kukuba inokuguquguquka okukhulu kwaye inokongezwa ngokuthe ngqo kwipeyinti ye-latex. Indlela yokulungiselela iyafana namanyathelo ①-④.
Ⅲ. Lungiselela isidudu ukuze sisetyenziswe kamva: Ekubeni izinyibilikisi zendalo zizinyibilikisi ezinganyibilikiyo (ezingenakunyibilika) kwi-hydroxyethyl, ezi zinyibilikisi zinokusetyenziselwa ukulungisa isidudu. Ezona zinyibiliki zisetyenziswa ngokuqhelekileyo zilulwelo lwendalo kwimixube yepeyinti ye-latex, efana ne-ethylene glycol, ipropylene glycol, kunye ne-film-forming agents (ezifana nediethylene glycol butyl acetate). I-porridge hydroxyethyl cellulose inokongezwa ngokuthe ngqo kwipeyinti. Qhubeka uvuselela de unyibilike ngokupheleleyo.
(2) Kudonga lokukrala iputty:
Okwangoku, kwizixeko ezininzi kwilizwe lam, i-putty enganyangekiyo yamanzi kunye ne-scrub-resistant-friendly-friendly putty ixatyiswe kakhulu ngabantu. Iveliswa yi-acetal reaction ye-vinyl alcohol kunye ne-formaldehyde. Ngoko ke, esi sixhobo sipheliswa ngokuthe ngcembe ngabantu, kwaye iimveliso ze-cellulose ether series zisetyenziselwa ukubuyisela le nto. Oko kukuthi, ukuphuhliswa kwezinto zokwakha ezihambelana nokusingqongileyo, i-cellulose okwangoku iyona nto kuphela.
Kwi-putty enganyangekiyo emanzini, ihlulwe ibe ziindidi ezimbini: iputty eyomileyo kunye ne-putty paste. Phakathi kwezi ntlobo zimbini ze-putty, i-methyl cellulose ehlaziyiweyo kunye ne-hydroxypropyl methyl kufuneka ikhethwe. Ukucaciswa kwe-viscosity ngokubanzi phakathi kwe-30000-60000cps. Imisebenzi ephambili ye-cellulose kwi-putty kukugcina amanzi, ukudibanisa kunye nokuthambisa. Kuba iifomyula ze-putty zabavelisi abahlukeneyo zahlukile, ezinye ziyi-calcium egrey, i-calcium ekhanyayo, i-samente emhlophe, njl., kwaye ezinye ziyi-gypsum powder, i-calcium egrey, i-calcium ekhanyayo, njl. iifomula ezimbini nazo zahlukile. Imali eyongeziweyo imalunga ne-2 ‰-3 ‰. Kulwakhiwo lwe-putty eludongeni, ekubeni umgangatho wesiseko sodonga unomlinganiselo othile wokufunxa amanzi (izinga lokufunxa amanzi eludongeni lwezitena li-13%, kunye nesantya sokufunxa amanzi kwikhonkrithi yi-3-5%), idityaniswe ne-evaporation yelizwe langaphandle, ukuba i-putty ilahlekelwa ngamanzi ngokukhawuleza , Kuya kukhokelela ekuqhekekeni okanye ekususweni komgubo, okuya kwenza buthathaka amandla e-putty. Ngoko ke, ukongeza i-cellulose ether kuya kusombulula le ngxaki. Kodwa umgangatho we-filler, ngakumbi umgangatho we-ash calcium nayo ibaluleke kakhulu.
Ngenxa ye-viscosity ephezulu ye-cellulose, i-buoyancy ye-putty nayo iphuculwe, kwaye i-phenomenon ephazamisayo ngexesha lokwakha nayo iyathintelwa, kwaye ikhululekile kwaye isindisa umsebenzi emva kokukhuhla. Kukulungele ngakumbi ukongeza i-cellulose ether kwi-powder putty. Imveliso kunye nokusetyenziswa kwayo kulula ngakumbi. I-filler kunye nezongezo zinokuxutywa ngokulinganayo kwipowder eyomileyo.
(3) Udaka lwekhonkrithi:
Kwi-concrete mortar, ukufezekisa amandla okugqibela, i-samente kufuneka ifakwe ngokupheleleyo. Ngokukodwa ekwakhiweni kwehlobo, udaka lwekhonkrithi lulahlekelwa ngamanzi ngokukhawuleza, kwaye imilinganiselo ye-hydration epheleleyo isetyenziselwa ukugcina nokufefa amanzi. Inkunkuma yemithombo kunye nokusebenza okungahambi kakuhle, isitshixo kukuba amanzi aphezu komhlaba kuphela, kwaye i-hydration yangaphakathi ayiphelelanga, ngoko isisombululo kule ngxaki kukongeza ii-agent ezisibhozo zokugcina amanzi kwikhonkrithi yodaka, ngokuqhelekileyo khetha i-hydroxypropyl methyl. okanye i-methyl Cellulose, ukucaciswa kwe-viscosity kuphakathi kwe-20000-60000cps, kwaye imali eyongezelelweyo yi-2% -3%. Izinga logcino lwamanzi linokunyuswa libe ngaphezu kwama-85%. Indlela yokusetyenziswa kwikhonkrithi yodaka kukuxuba umgubo owomileyo ngokulinganayo kwaye uwuthulule emanzini.
(4) Ekutyatyekeni kwegypsum, igypsum edityanisiweyo, igypsum ephothiweyo:
Ngophuhliso olukhawulezayo lweshishini lokwakha, imfuno yabantu yezinto ezintsha zokwakha nayo iyanda imihla ngemihla. Ngenxa yokwanda kokuqonda kwabantu ngokukhuselwa kwendalo kunye nokuphuculwa okuqhubekayo kobuchule bokwakha, iimveliso ze-gypsum ze-cementitious ziye zaphuhliswa ngokukhawuleza. Okwangoku, ezona mveliso zixhaphakileyo zegypsum kukutyabeka igypsum, igypsum edityanisiweyo, igypsum eyakhiweyo, kunye neadhesive tile. I-gypsum yokutyabeka yinto ekumgangatho ophezulu yokutyabeka kwiindonga zangaphakathi kunye neesilingi. Udonga olutyatyekwe ngayo lulungile kwaye lugudileyo. Ibhodi entsha yokuncamathela yebhodi yokukhanya yinto encangathi eyenziwe ngegypsum njengesiseko sezinto kunye nezongezo ezahlukeneyo. Ilungele ukudityaniswa phakathi kwezinto ezahlukeneyo zodonga lwezakhiwo ezingaphiliyo. Ayinatyhefu, i-Odorless, amandla okuqala kunye nokumisela ngokukhawuleza, ukudibanisa okuqinileyo kunye nezinye iimpawu, yinto exhasayo kwiibhodi zokwakha kunye nokwakhiwa kweebhloko; i-agent ye-gypsum caulking yi-gap filler phakathi kweebhodi ze-gypsum kunye ne-filler yokulungisa iindonga kunye nokuqhekeka.
Ezi mveliso zegypsum zinemisebenzi eyahlukeneyo. Ukongeza kwindima ye-gypsum kunye neefayili ezihambelanayo, umba ophambili kukuba izongezo ze-cellulose ether ezongeziweyo zidlala indima ephambili. Ekubeni i-gypsum ihlulwe ibe yi-gypsum ye-anhydrous kunye ne-hemihydrate gypsum, i-gypsum eyahlukileyo ineempembelelo ezahlukeneyo ekusebenzeni kwemveliso, ngoko ke ukuqina, ukugcinwa kwamanzi kunye nokunciphisa umgangatho wezinto zokwakha ze-gypsum. Ingxaki eqhelekileyo yezi zixhobo i-hollowing kunye nokuqhekeka, kwaye amandla okuqala awanakufikelelwa. Ukusombulula le ngxaki, kukukhetha uhlobo lwe-cellulose kunye nendlela yokusetyenziswa kwekhompawundi ye-retarder. Kulo mba, i-methyl okanye i-hydroxypropyl methyl 30000 ikhethwa ngokubanzi. -60000cps, imali eyongeziweyo yi-1.5% -2%. Phakathi kwazo, i-cellulose igxile ekugcinweni kwamanzi kunye nokunciphisa i-lubrication. Nangona kunjalo, akunakwenzeka ukuthembela kwi-cellulose ether njenge-retarder, kwaye kuyimfuneko yokongeza i-citric acid retarder ukuxuba nokusebenzisa ngaphandle kokuchaphazela amandla okuqala.
Ugcino lwamanzi lubhekisa kubungakanani bamanzi aya kulahleka ngokwendalo ngaphandle kokufunxwa kwamanzi ngaphandle. Ukuba udonga lome kakhulu, ukufunxwa kwamanzi kunye nokunyuka kwemvelo kwisiseko somhlaba kuya kwenza ukuba izinto zilahlekelwe ngamanzi ngokukhawuleza, kunye nokuqhekeka kunye nokuqhekeka kuya kwenzeka. Le ndlela yokusetyenziswa ixutywe nomgubo owomileyo. Ukuba ulungiselela isisombululo, nceda ubhekisele kwindlela yokulungiselela isisombululo.
(5) Udaka lwe-thermal insulation
Udaka lwe-insulation luhlobo olutsha lwezixhobo zokugquma eludongeni lwangaphakathi kummandla osemantla. Yinto eludongeni eyenziwe ngezinto zokugquma, udaka kunye ne-binder. Kule nto, i-cellulose idlala indima ephambili ekudibaniseni nasekunyuseni amandla. Ngokuqhelekileyo khetha i-methyl cellulose ene-viscosity ephezulu (malunga ne-10000eps), i-dosage iphakathi kwe-2 ‰-3 ‰), kwaye indlela yokusetyenziswa i-powder eyomileyo yokuxuba.
(6) i-arhente yojongano
Khetha i-HPNC 20000cps ye-agent ye-interface, khetha i-60000cps okanye ngaphezulu kwi-adhesive tile, kwaye ugxininise kwi-thickener kwi-agent ye-interface, enokuphucula amandla okuqina kunye namandla okuchasa utolo. Isetyenziswa njenge-arhente yokugcina amanzi ekudibaneni kweethayile ukunqanda iithayile ekuphelelweni kwamanzi ngokukhawuleza kwaye ziwe.
Ixesha lokuposa: Feb-16-2023