Iselulosi etheryipolymer engeyiyo ionic semi-synthetic, enyibilikayo emanzini kunye ne-solvent-soluble. Ineempembelelo ezahlukeneyo kumashishini ahlukeneyo. Umzekelo, kwizinto zokwakha zekhemikhali, zineempembelelo ezidibeneyo zilandelayo: ① i-arhente yokugcina amanzi ② i-thickener ③ ipropathi yokulinganisa ④ ipropati yokwenza ifilimu ⑤ binder; kwishishini le-polyvinyl chloride, i-emulsifier kunye ne-dispersant; kwishishini lamachiza, liyi-binder kunye ne-agent ye-buffering Khupha izixhobo ze-skeleton, njl., kuba i-cellulose ineempembelelo ezahlukeneyo ezidibeneyo, ngoko ke imimandla yesicelo sayo nayo ininzi kakhulu. Emva koko, ndiya kugxininisa ekusebenziseni kunye nomsebenzi we-cellulose ether kwizinto zokwakha zokusingqongileyo.
1. Kwipeyinti yelatex
Kwishishini lepeyinti ye-latex, i-hydroxyethyl cellulose kufuneka ikhethwe. Ukucaciswa ngokubanzi kwe-viscosity yi-RT30000-50000, kunye nedosi yereferensi ngokubanzi malunga ne-1.5 ‰-2‰. Umsebenzi ophambili we-hydroxyethyl kwipeyinti ye-latex kukujiya, ukuthintela i-gelation ye-pigment, ukunceda ukusasazeka, i-latex, kunye nokuzinza kwe-pigment, kunye nokwandisa i-viscosity yecandelo, eluncedo 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 iindlela ezintathu zokusetyenziswa:
I. Yongeza ngokuthe ngqo kwimveliso:
Le ndlela kufuneka ikhethe i-hydroxyethyl cellulose uhlobo lokulibaziseka - i-hydroxyethyl cellulose kunye nexesha lokuchithwa kwemizuzu engama-30. La manyathelo alandelayo: ① Yongeza umlinganiselo othile wamanzi acocekileyo kwisikhongozeli esixhotyiswe nge-agitator ephezulu yokucheba ② Qala ukushukuma ngokuqhubekayo ngesantya esiphantsi, kwaye kwangaxeshanye kancinci wongeza iqela le-hydroxyethyl kwisisombululo ngokulungeleleneyo ③Qhubeka ushukumisa de zonke izixhobo zegranular zifakwe ④ kunye nokongeza zonke izinto ezincedisayo, njl. Amaqela e-hydroxyethyl achithwa ngokupheleleyo, ngoko Yongeza amanye amacandelo kwifomula kwaye ugaye de kube yimveliso egqityiweyo.
Ⅱ. Ixhotyiswe ngotywala benina ukuze busetyenziswe kamva:
Le ndlela inokukhetha uhlobo olukhawulezayo, kwaye ine-anti-mildew effect cellulose. Inzuzo yale ndlela kukuba inokuguquguquka okukhulu kwaye inokongezwa ngokuthe ngqo kwipeyinti ye-latex. Indlela yokulungiselela iyafana namanyathelo ①-④.
Ⅲ. Yilungiselele kwisidudu ukuze sisetyenziswe kamva:
Ekubeni izinyibilikisi zendalo zizinyibilikisi ezihlwempuzekileyo (ezingenakunyibilika) kwi-hydroxyethyl, ezi zinyibilikisi zingasetyenziselwa ukwenza 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-hydroxypropyl methylcellulose ikhethwa ngokubanzi, kwaye inkcazo ye-viscosity iphakathi kwe-80,000-90,000. Indima kukugcina amanzi, ukudibanisa, ukuthambisa njalo njalo.
Ekubeni iifomyula ze-putty zabavelisi abahlukeneyo zahlukile, ezinye ziyi-calcium engwevu, i-calcium ekhanyayo, i-samente emhlophe, njl., kwaye ezinye ziyi-gypsum powder, i-calcium engwevu, i-calcium ekhanyayo, njl. Imali eyongeziweyo imalunga ne-3 ‰-5 ‰.
Kulwakhiwo lwe-putty eludongeni, kuba umgangatho wesiseko sodonga unomlinganiselo othile wokufunxa amanzi (izinga lokufunxa amanzi eludongeni lwezitena li-13%, kunye nesantya sokufunxa amanzi kwikhonkrithi yi-3-5%), idityaniswa nokuphuma komphunga welizwe langaphandle, ukuba i-putty ilahlekelwa ngamanzi ngokukhawuleza kakhulu 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 into ephazamisayo ngexesha lokwakha nayo iyathintelwa, kwaye ikhululekile kwaye igcina umsebenzi emva kokukhuhla.
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. Inkcitho yemithombo kunye nokusebenza kakubi. Isitshixo kukuba amanzi aphezu komhlaba kuphela, kwaye i-hydration yangaphakathi ayiphelelanga. Ngoko ke, isisombululo sale ngxaki kukongeza i-hydroxypropyl methylcellulose phakathi kwe-150,000 kunye ne-200,000 kwikhonkrithi yodaka. , isixa esongezelelweyo simalunga ne-2 ‰–3‰, kwaye izinga lokugcinwa kwamanzi linganyuswa libe ngaphezu kwe-92%. Indlela yokusetyenziswa kwikhonkrithi yodaka kukongeza amanzi emva kokuba umgubo owomileyo uxutywe ngokulinganayo.
4. Ekufakeni i-gypsum, i-gypsum edibeneyo, i-caulking gypsum
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 ye-plastering yinto ephezulu yokutyabeka kwiindonga zangaphakathi kunye neesilingi. Umphezulu wodonga olufakwe kuyo lulungile kwaye lucolile, aluyiwisi umgubo, luqiniswe ngokuqinileyo kwisiseko, alunakuqhekeka kunye nokuwa, kwaye lunomsebenzi womlilo; i-gypsum edibeneyo iluhlobo olutsha lwebhodi yokuncamathelisa ibhodi yokukhanya yinto encangathi eyenziwe ngegypsum njengesiseko kunye nokongeza izongezo ezahlukeneyo. Ilungele ukudityaniswa phakathi kwezinto ezahlukeneyo zodonga lwezakhiwo ezingaphiliyo. Ayinatyhefu, ayinancasa, Iimpawu ezinjengamandla okuqala, ukuseta ngokukhawuleza, kunye nokudibanisa okuqinileyo, yinto exhasayo kwiipaneli zokwakha kunye nokwakhiwa kweebhloko; i-agent ye-gypsum caulking yi-gap filler phakathi kweepaneli 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. Ngenxa yokuba 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. -60000, imali eyongeziweyo iphakathi kwe-1.5 ‰–2 ‰, kwaye i-cellulose igxile ekugcineni amanzi kunye nokunciphisa ukuthambisa.
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-150,000), i-dosage iphakathi kwe-2 ‰-3 ‰), kwaye indlela yokusetyenziswa i-powder eyomileyo yokuxuba.
6. I-arhente yonxibelelwano
I-agent ye-interface kufuneka ibe yi-HPNC20000, kwaye i-adhesive tile kufuneka ibe ngaphezu kwe-100,000. I-agent ye-interface kufuneka isetyenziswe njenge-thickener, enokuphucula amandla okuqina kunye namandla okuchasa utolo.
Ixesha lokuposa: Apr-28-2024