I-Cellulose ether yi-polymer engeyiyo i-ionic semi-synthetic, enyibilikayo emanzini kwaye inyibilikayo. Ineziphumo ezahlukeneyo kumashishini ahlukeneyo. Umzekelo, kwizixhobo zokwakha iikhemikhali, ineziphumo ezilandelayo ezidibeneyo:
①Iarhente yokugcina amanzi
②Utyebi
③Ukulinganisa
④Ukwenziwa kweefilimu
⑤ Isibopheleli
Kwishishini le-polyvinyl chloride, yi-emulsifier kunye ne-dispersant; kwishishini leyeza, yi-binder kunye nezinto ezikhutshwa kancinci nezilawulwayo, njl. Ngenxa yokuba i-cellulose inemiphumo eyahlukeneyo edibeneyo, ukusetyenziswa kwayo. Intsimi nayo ibanzi kakhulu. Okulandelayo, ndiza kugxila ekusebenziseni nasekusebenzeni kwe-cellulose ether kwizixhobo ezahlukeneyo zokwakha.
1. Kwishishini lokupenda i-latex, khetha i-hydroxyethyl cellulose, inkcazo ngokubanzi ye-viscosity elinganayo yi-RT30000-50000cps, ehambelana nenkcazo ye-HBR250, kwaye idosi yesalathiso ngokubanzi imalunga ne-1.5‰-2‰. Umsebenzi ophambili we-hydroxyethyl kwipeyinti ye-latex kukuqina, ukuthintela i-gelation ye-pigment, ukunceda ukusasazeka kwe-pigment, ukuzinza kwe-latex, kunye nokunyusa i-viscosity yezixhobo, nto leyo eluncedo ekusebenzeni kokulinganisa kolwakhiwo: I-Hydroxyethyl cellulose kulula ukuyisebenzisa. Inganyibilikiswa emanzini abandayo okanye emanzini ashushu, kwaye ayichaphazeleki lixabiso le-pH. Ingasetyenziswa ngokukhuselekileyo phakathi kwexabiso le-PI 2 kunye ne-12. Iindlela zokusetyenziswa zezi zilandelayo:
I. Yongeza ngqo kwimveliso: Kule ndlela, kufuneka kukhethwe uhlobo olucothayo lwe-hydroxyethyl cellulose, kwaye kusetyenziswa i-hydroxyethyl cellulose enexesha lokunyibilika elingaphezulu kwemizuzu engama-30. Amanzi acocekileyo angaphakathi emlonyeni ②Qala ukuxuba ngesantya esiphantsi rhoqo, kwaye kwangaxeshanye yongeza i-hydroxyethyl kancinci kwisisombululo ngokulinganayo ③Qhubeka uvuselela de zonke izinto ezi-granular zimanzi ④Yongeza ezinye izongezo kunye nezongezo ze-alkaline, njl. ⑤Xuba de Onke amaqela e-hydroxyethyl anyibilike ngokupheleleyo, uze wongeze ezinye izinto kwifomyula, uze ucole de imveliso igqitywe.
Ⅱ. Ixhotyiswe ngotywala bomama ukuze isetyenziswe kamva: Le ndlela inokukhetha i-cellulose ekhawulezileyo, enefuthe lokulwa nokungunda. Inzuzo yale ndlela kukuba inokuguquguquka okukhulu kwaye ingongezwa ngokuthe ngqo kwipeyinti yelatex. Indlela yokulungiselela iyafana namanyathelo ①-④.
Ⅲ. Lungisa iporridge ukuze isetyenziswe kamva: Ekubeni izinyibilikisi zendalo zingezinyibilikisi kakuhle (ezinganyibilikiyo) kwi-hydroxyethyl, ezi zinyibilikisi zingasetyenziselwa ukulungisa iporridge. Ezona zinyibilikisi zendalo zisetyenziswa kakhulu zizinto eziphilayo ezikwiifomyula zepeyinti yelatex, ezifana ne-ethylene glycol, i-propylene glycol, kunye nee-arhente ezenza ifilimu (ezifana ne-diethylene glycol butyl acetate). Iporridge hydroxyethyl cellulose inokongezwa ngqo kwipeyinti. Qhubeka uvuselela ude unyibilike ngokupheleleyo.
2. Kwi-putty yokukrala eludongeni: Okwangoku, i-putty yokukhusela okusingqongileyo engangeni manzi kwaye ingakhuhli kwizixeko ezininzi kwilizwe lam ngokusisiseko ixatyiswe ngabantu. Iglue esempilweni neyakhayo yenziwa yi-acetalizing polyvinyl alcohol kunye ne-formaldehyde. Ke ngoko, le nto isuswa kancinci ngabantu, kwaye iimveliso ze-cellulose ether series zisetyenziselwa ukuthatha indawo yale nto. Oko kukuthi, uphuhliso lwezixhobo zokwakha ezinobuhlobo nokusingqongileyo, i-cellulose okwangoku yeyona nto ikuphela kwayo. Kwi-putty engangeni manzi, yahlulwe yaba ziintlobo ezimbini: i-putty yomgubo owomileyo kunye ne-putty paste. Phakathi kwezi ntlobo zimbini ze-putty, i-methyl cellulose eguquliweyo kunye ne-hydroxypropyl methyl kufuneka zikhethwe. Inkcazo ye-viscosity ngokubanzi iphakathi kwe-30000-60000cps. Imisebenzi ephambili ye-cellulose kwi-putty kukugcinwa kwamanzi, ukubopha kunye nokuthambisa. Ekubeni iifomyula ze-putty zabavelisi abahlukeneyo zahlukile, ezinye ziyi-calcium engwevu, i-calcium ekhaphukhaphu, isamente emhlophe, njl.njl., kwaye ezinye ziyi-gypsum powder, i-calcium engwevu, i-calcium ekhaphukhaphu, njl.njl., ngoko ke iinkcukacha, i-viscosity kunye nokungena kwe-cellulose kwezi fomyula zimbini nazo zahlukile. Ubungakanani obongeziweyo bumalunga ne-2‰-3‰. Ekwakhiweni kwe-putty yokukrala udonga, ekubeni umphezulu osisiseko wodonga unomlinganiselo othile wokufunxwa kwamanzi (isantya sokufunxwa kwamanzi eludongeni lwezitena yi-13%, kwaye izinga lokufunxwa kwamanzi kwikhonkrithi yi-3-5%), kunye nokuphuma komphunga kwihlabathi langaphandle, ukuba i-putty ilahlekelwa ngamanzi ngokukhawuleza, iya kukhokelela ekuqhekekeni okanye ekususweni komgubo, okuya kwenza buthathaka amandla e-putty. Ke ngoko, ukongeza i-cellulose ether kuya kuyisombulula le ngxaki. Kodwa umgangatho we-filler, ngakumbi umgangatho we-calcium yomlotha nawo ubaluleke kakhulu. Ngenxa ye-viscosity ephezulu ye-cellulose, ukubutha kwe-putty nako kuyaphuculwa, kwaye into yokuwa ngexesha lokwakha nayo iyathintelwa, kwaye ikhululekile ngakumbi kwaye isindisa abasebenzi emva kokukrala. Kulula ngakumbi ukongeza i-cellulose ether kwi-powder putty. Ukuveliswa kwayo nokusetyenziswa kwayo kulula ngakumbi. I-filler kunye nezongezo zinokuxutywa ngokulinganayo kwi-dry powder.
3. Udaka lwesamente: Kwidaka lesamente, ukuze kufumaneke amandla apheleleyo, isamente kufuneka ifunxwe ngokupheleleyo. Ingakumbi xa kusakhiwa ehlotyeni, udaka lwesamente lulahlekelwa ngamanzi ngokukhawuleza, kwaye iindlela zokulinganisa udoti olupheleleyo zisetyenziselwa ukugcina nokufafaza amanzi. Indlela yokuqala kukudala inkcitho yemithombo yamanzi kunye nokusebenza okungahambi kakuhle. Ingongoma ephambili kukuba amanzi angaphezulu kuphela, kwaye udoti lwangaphakathi alukagqitywa. Ke ngoko, isisombululo sale ngxaki kukongeza izinto ezisibhozo zokugcina amanzi kwidaka lesamente. Ngokubanzi, kukhethwa i-hydroxypropyl. I-Methyl okanye i-methyl cellulose, inkcazo ye-viscosity iphakathi kwe-20000-60000cps, kwaye isixa sokongeza yi-2%-3%. Izinga lokugcina amanzi linokwandiswa liye ngaphezulu kwe-85%. Indlela yokusebenzisa kwidaka lesamente kukuxuba umgubo owomileyo ngokulinganayo uze uwuthulule emanzini.
4. Kwi-plastering gypsum, bonding gypsum, kunye ne-caulking gypsum: Ngophuhliso olukhawulezileyo lweshishini lokwakha, imfuno yabantu yezixhobo ezintsha zokwakha nayo iyanda. Ngenxa yokwanda kolwazi lwabantu ngokhuseleko lokusingqongileyo kunye nokuphuculwa okuqhubekayo kokusebenza kakuhle kokwakha, izinto ezisebenzisa isamente, iimveliso ze-gypsum ziye zaphuhliswa ngokukhawuleza. Okwangoku, iimveliso ze-gypsum eziqhelekileyo yi-plastering gypsum, i-bonding gypsum, i-inlaid gypsum, kunye ne-tile adhesive. I-plastering gypsum sisixhobo sokuplastering esisemgangathweni ophezulu kwiindonga zangaphakathi kunye neesilingi. Umphezulu wodonga ofakwe kuyo ulungile kwaye uthambile. I-adhesive entsha yebhodi yokukhanya yesakhiwo sisixhobo esinamathelayo esenziwe nge-gypsum njengezinto ezisisiseko kunye nezongezo ezahlukeneyo. Ifanelekile ukubopha phakathi kwezinto ezahlukeneyo zodonga lwesakhiwo ezingaphiliyo. Ayinatyhefu, Ayinavumba, inamandla okuqala kwaye ifakelwa ngokukhawuleza, i-bonding enamandla kunye nezinye iimpawu, sisixhobo esixhasayo kwiibhodi zokwakha kunye nokwakhiwa kweebhloko; i-arhente ye-caulking ye-gypsum sisixhobo sokuzalisa isithuba phakathi kweebhodi ze-gypsum kunye ne-filler yokulungisa iindonga kunye neentanda. Ezi mveliso ze-gypsum zinoluhlu lwemisebenzi eyahlukeneyo. Ukongeza kwindima yegypsum kunye nezizalisi ezinxulumene nayo, ingxaki ephambili kukuba izongezo ze-cellulose ether ezongeziweyo zidlala indima ephambili. Ekubeni i-gypsum yahlulwe kwi-gypsum engamanzi kunye ne-hemihydrate gypsum, i-gypsum eyahlukeneyo ineempembelelo ezahlukeneyo ekusebenzeni kwemveliso, ngoko ke ukujiya, ukugcinwa kwamanzi kunye nokulibaziseka kumisela umgangatho wezixhobo zokwakha ze-gypsum. Ingxaki eqhelekileyo yezi zinto kukuqhekeka nokuqhekeka, kwaye amandla okuqala awanakufikelelwa. Ukusombulula le ngxaki, kukukhetha uhlobo lwe-cellulose kunye nendlela yokusebenzisa i-compound ye-retarder. Kule nkalo, i-methyl okanye i-hydroxypropyl methyl 30000 ikhethwa ngokubanzi. –60000cps, isixa sokongeza yi-1.5%–2%. Phakathi kwazo, i-cellulose igxile ekugcinweni kwamanzi kunye nokulibaziseka kokuthambisa. Nangona kunjalo, akunakwenzeka ukuthembela kwi-cellulose ether njenge-retarder, kwaye kuyimfuneko ukongeza i-citric acid retarder ukuze uyixube kwaye uyisebenzise ngaphandle kokuchaphazela amandla okuqala. Ukugcinwa kwamanzi ngokubanzi kubhekisa ekubeni angakanani amanzi aza kulahleka ngokwendalo ngaphandle kokufunxwa kwamanzi ngaphandle. Ukuba udonga lomile kakhulu, ukufunxwa kwamanzi kunye nokuphuma komphunga wendalo kumphezulu osisiseko kuya kwenza ukuba izinto zilahlekelwe ngamanzi ngokukhawuleza, kwaye kuya kubakho ukuqhekeka nokuqhekeka. Le ndlela yokusebenzisa ixutywe nomgubo owomileyo. Ukuba ulungisa isisombululo, nceda ubhekisele kwindlela yokulungiselela isisombululo.
5. Udaka lokufaka i-insulation Udaka lokufaka i-insulation luhlobo olutsha lwezinto zokufaka i-insulation eludongeni lwangaphakathi kummandla osemantla. Ludaka oludityaniswe ngezinto zokufaka i-insulation, udaka kunye ne-binder. Kule nto, i-cellulose idlala indima ebalulekileyo ekudibaniseni nasekunyuseni amandla. Ngokubanzi khetha i-methyl cellulose ene-viscosity ephezulu (malunga ne-10000eps), idosi ngokubanzi iphakathi kwe-2‰-3‰), kwaye indlela yokusebenzisa kukuxuba umgubo owomileyo.
6. Iarhente yojongano Khetha i-HPNC 20,000 cps njengearhente yojongano, khetha i-60,000 cps nangaphezulu njenge-adhesive yethayile, kwaye ugxile kwi-agent yokuqinisa kwi-arhente yojongano, enokuphucula amandla okuxinana kunye namandla okulwa notolo. Isetyenziswa njengearhente yokugcina amanzi ekubopheleleni kwethayile ukuthintela iithayile ukuba zingaphelelwa ngamanzi ngokukhawuleza kwaye ziwe.
Ixesha lokuthumela: Feb-18-2023