I-Cellulose ether luhlobo lwe-non-ionic semi-synthetic high molecular polymer. Ineentlobo ezimbini zepropathi ezinyibilikayo emanzini kunye ne-solvent-based properties. Ineempembelelo ezahlukeneyo kumashishini ahlukeneyo. Umzekelo, kwizinto zokwakha zekhemikhali, zineziphumo ezidibeneyo zilandelayo: ①Iarhente yokugcina amanzi ②Thickener ③Leveling ④Film-forming ⑤Binder; kwishishini lePVC, liyi-emulsifier kunye ne-dispersant; kwishishini lamachiza, liyi-binder kwaye Ngenxa yokuba i-cellulose ineempembelelo ezahlukeneyo ze-composite, ikwayeyona isetyenziswa kakhulu. Ngezantsi ndiza kugxininisa ekusebenziseni kunye nomsebenzi we-cellulose ethers kwizinto zokwakha ezihambelana nokusingqongileyo.
1. Kwipeyinti yelatex
Kwishishini lepeyinti ye-latex, i-hydroxyethyl cellulose kufuneka ikhethwe. Ukucaciswa ngokubanzi kwe-viscosity yi-RT30000-50000cps, kwaye idosi yereferensi ngokubanzi malunga ne-1.5 ‰-2‰. Umsebenzi ophambili we-hydroxyethyl kwipeyinti ye-latex kukujiya, ukuthintela i-pigment gelation, ukunceda ukusasazeka kwe-pigment, i-latex, kunye nokuzinza, kwaye inokuphucula i-viscosity yamacandelo kunye negalelo ekusebenzeni komgangatho wokwakha: I-Hydroxyethyl Ethyl cellulose ilula ukuyisebenzisa. Inokuchithwa emanzini abandayo kunye namanzi ashushu, kwaye ayichaphazeli ixabiso le-pH. Ingasetyenziswa phakathi kwexabiso le-pH ye-2 kunye ne-12. Kukho ezi ndlela zintathu zilandelayo:
I. Yongeza ngokuthe ngqo kwimveliso:
Le ndlela kufuneka ikhethe i-hydroxyethyl cellulose uhlobo lokulibaziseka - i-hydroxyethyl cellulose kunye nexesha lokuchithwa kwemizuzu engama-30. Amanyathelo okusebenzisa ami ngolu hlobo lulandelayo: ① Yongeza umlinganiselo othile wamanzi asulungekileyo kwisikhongozeli esine-hear-chear agitator ② Qalisa ngokuqhubekayo ngesantya esiphantsi, kwaye kwangaxeshanye ngokucotha nangokulinganayo wongeze iqela le-hydroxyethyl kwisisombululo ③ Qhubeka nokuvuselela. de yonke imathiriyeli yegranula ifakwe emanzini ④ Yongeza ezinye izongezo kunye nezongezo zealkaline, njalo njalo. ⑤ Gxuma de kube yonke into amaqela e-hydroxyethyl achithwa ngokupheleleyo, Yongeza ezinye izithako kwiresiphi kwaye ugaye de ugqibe.
Ⅱ. Ixhotyiswe ngotywala bemama:
Le ndlela inokukhetha uhlobo olukhawulezayo, kwaye inefuthe le-anti-mildew cellulose. Inzuzo yale ndlela kukuba inokuguquguquka okukhulu kwaye inokongezwa ngokuthe ngqo kwipeyinti ye-latex. Indlela yokulungiselela iyafana namanyathelo e-①–④.
Ⅲ. Ukulungiselela iipropati ezifana nesidudu:
Ekubeni izinyibilikisi zendalo zizinyibilikisi ezihlwempuzekileyo (ezingenakunyibilika) kumaqela e-hydroxyethyl, iiporridges zinokuqulunqwa ngezi zinyibilikisi. Ezona zinyibiliki zisetyenziswa ngokuqhelekileyo zilulwelo lwendalo kwimixube yepeyinti ye-latex, efana ne-ethylene glycol, ipropylene glycol kunye nefilmforms (ezifana nediethylene glycol butyl acetate). I-porridge hydroxyethyl cellulose inokongezwa ngokuthe ngqo kwipeyinti. Qhubeka uvuselela de unyibilike ngokupheleleyo.
2, ukukhuhla iputty eludongeni
Okwangoku, i-putty ehambelana nokusingqongileyo enganyangekiyo emanzini kunye ne-scrub-resistant kwizixeko ezininzi kwilizwe lam ixabiseke kakhulu ngabantu. Kwiminyaka embalwa edlulileyo, ngenxa yokuba i-putty eyenziwe ngeglue yokwakha ikhupha igesi ye-formaldehyde kwaye yonakalise impilo yabantu, iglue yokwakha yenziwe ngepolymer Ilungiselelwe yi-acetal reaction ye-vinyl alcohol kunye ne-formaldehyde. Ngoko ke, lo mbandela upheliswa ngokuthe ngcembe ngabantu, kwaye imveliso ye-cellulose ether series ithathelwa indawo yile nto, oko kukuthi, ukuphuhliswa kwezinto zokwakha ezinobume bendalo, i-cellulose yiyona nto kuphela ngoku.
Kwi-putty enganyangekiyo emanzini, ihlulwe ibe yiputty eyomileyo kunye ne-putty paste. Phakathi kwezi ntlobo zimbini ze-putty, i-methyl cellulose elungisiweyo kunye ne-hydroxypropyl methyl zikhethwa ngokubanzi. 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 engwevu, i-calcium ekhanyayo, njl. . Imali eyongeziweyo imalunga ne-2 ‰-3 ‰.
Kulwakhiwo lwe-putty eludongeni, ngenxa yokuba isiseko sodonga sinokufunxa okuthile kwamanzi (izinga lokufunxa amanzi eludongeni lwezitena liyi-13%, kunye nesantya sokufunxa amanzi kwikhonkrithi yi-3-5%), idibene Ukuvela kwe-evaporation yelizwe langaphandle, ukuba i-putty ilahlekelwa ngamanzi ngokukhawuleza, iya kukhokelela ekuqhekekeni okanye ekususweni komgubo kunye nezinye iziganeko, ngaloo ndlela zenza buthathaka amandla e-putty. Ngesi sizathu, ukongeza i-cellulose ether kuya kusombulula le ngxaki. Kodwa umgangatho we-filler, ngakumbi umgangatho we-lime calcium, nayo ibaluleke kakhulu. Ngenxa yokuba i-cellulose ine-viscosity ephezulu, iphinda iphucule i-buoyancy ye-putty, inqande ukudilika ngexesha lokwakha, kwaye ikhululekile kwaye isindisa umsebenzi emva kokukhuhla.
3. Udaka lwekhonkrithi
Kudaka lwekhonkrithi, ukuphumeza ngokwenene amandla okugqibela, isamente kufuneka ifakwe amanzi ngokupheleleyo, ngakumbi kulwakhiwo lwasehlotyeni, udaka lwekhonkrithi luphulukana namanzi ngokukhawuleza, kwaye imilinganiselo yokuqukunjelwa okupheleleyo iyathathwa ukuze kugcinwe kwaye kufezwe amanzi. Inkunkuma yemithombo kunye nokusebenza okungahambi kakuhle, isitshixo kukuba amanzi aphezu komhlaba kuphela, kwaye i-hydration yangaphakathi isaqhubeka ingaphelelanga, ngoko isisombululo kule ngxaki kukongeza i-hydroxypropyl methyl cellulose okanye i-methyl cellulose kwikhonkrithi yodaka. Inkcazo ye-viscosity iphakathi kwe-20000-60000cps, imali eyongezelelweyo imalunga ne-2 ‰-3 ‰, kwaye izinga lokugcinwa kwamanzi linganyuswa libe ngaphezu kwe-85%. Indlela yokusetyenziswa kwikhonkrithi yodaka kukuxuba umgubo owomileyo ngokulinganayo kwaye wongeze amanzi.
4. Kwi-plaster yokutyabeka, i-plaster yokudibanisa kunye ne-caulking plaster
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, iimveliso ze-gypsum eziqhelekileyo zifaka i-gypsum, i-gypsum yokudibanisa, i-gypsum yokufaka, i-adhesive tile kunye nokunye.
I-Stucco plaster luhlobo lwemathiriyeli yokutyabeka ekumgangatho ophezulu kwiindonga zangaphakathi kunye nophahla. Iindonga ezifakwe kuyo zilungile kwaye zihamba kakuhle, musa ukulahla i powder, ibhondi ngokuqinileyo kwi-substrate, ayinakuqhekeka kwaye iwa, kwaye inokumelana nomlilo; i-bonding plaster luhlobo lwe-plaster. Uhlobo olutsha lwebhodi yokunamathiswa kwebhodi yokukhanya yinto enamathele eyenziwe nge-gypsum njengesiseko sesiseko kunye nokongeza izongezo ezahlukeneyo. Ilungele ukudityaniswa phakathi kwezinto ezahlukeneyo zodonga lwezakhiwo ezingaphiliyo. Ayinatyhefu, ayinancasa, ineempawu zamandla okuqala, ukuseta ngokukhawuleza kunye nokudibanisa okuqinileyo, kwaye iyimpahla exhasayo yokwakha iibhodi zokwakha kunye neebhloko;
Ezi mveliso ze-gypsum zinemisebenzi eyahlukeneyo, ngaphezu kwendima ye-gypsum kunye neefayili ezinxulumene nazo, umcimbi obalulekileyo kukuba i-cellulose ether eyongeziweyo encedisayo idlala indima ephambili. Ekubeni i-gypsum ihlulwe ibe yi-anhydrite kunye ne-hemihydrate gypsum, i-gypsum eyahlukeneyo ineempembelelo ezahlukeneyo ekusebenzeni kwemveliso, ngoko ke ukuqina, ukugcinwa kwamanzi kunye nokubuyiswa kumisela umgangatho wezinto zokwakha ze-gypsum. Ingxaki eqhelekileyo yezi zixhobo kukuqhekeka okungenanto, kwaye amandla okuqala akakwazi ukufikelela. Ukusombulula le ngxaki, yingxaki yokukhetha uhlobo lweselulosi kunye nendlela yokusetyenziswa kwe-composite ye-retarder. Kulo mba, i-methyl okanye i-hydroxypropyl methyl 30000 ikhethwa ngokubanzi. -60000cps, imali eyongeziweyo iphakathi kwe-1.5 ‰–2 ‰, ugxininiso lweselulosi kukugcina amanzi, ukuncipha kunye nokuthambisa.
Nangona kunjalo, akunakwenzeka ukuthembela kwi-cellulose ether njenge-retarder, kwaye kuyimfuneko yokongeza i-citric acid retarder ukuxuba kunye nokuyisebenzisa ukuze amandla okuqala angachaphazeleki.
Izinga logcino lwamanzi lubhekisa kwilahleko yendalo yamanzi ngokungabikho kokufunxwa kwamanzi ngaphandle. Ukuba udonga lome kakhulu, ukufunxwa kwamanzi kunye nokunyuka kwemvelo kwisiseko somgangatho kuya kubangela ukuba izinto zilahlekelwe ngamanzi ngokukhawuleza, kwaye ukugoba kunye nokuqhekeka kuya kwenzeka.
Le ndlela yokusetyenziswa ixutywe nomgubo owomileyo. Ukuba isisombululo silungiselelwe, nceda ubhekisele kwindlela yokulungiselela isisombululo.
5. Udaka lwe-insulation
Udaka lokufakwa kwe-thermal luhlobo olutsha lodonga lwangaphakathi lwemathiriyeli yokugquma i-thermal kummandla osemantla. Yinto eludongeni eyenziwe ngezinto zokufakelwa kwe-thermal, i-mortar 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 yindlela yokuxuba umgubo owomileyo.
6. I-arhente yonxibelelwano
I-agent ye-interface yi-HPNC20000cps, kwaye i-adhesive tile ingaphezulu kwe-60000cps. Kwi-agent ye-interface, isetyenziswa ikakhulu njenge-thickener, enokuphucula amandla okuqina kunye nokumelana notolo.
Ixesha lokuposa: Nov-02-2022