I-ether yeseliyipolymer ye-molecular ephezulu engeyiyo i-ionic, enyibilikayo emanzini kwaye inyibilikayo kwi-solvent. Ineziphumo ezahlukeneyo kumashishini ahlukeneyo. Umzekelo, kwizixhobo zokwakha zeekhemikhali, ineziphumo ezilandelayo ezidibeneyo:
① Iarhente yokugcina amanzi, ②Ityebisayo, ③Ipropati yokulinganisa, ④Ipropati yokwenza ifilimu,
⑤Umdibanisi
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.
Iipeyinti yelatex
Kwishishini lokupenda i-latex, ukukhetha i-hydroxyethyl cellulose, inkcazo ngokubanzi ye-viscosity elinganayo yi-30000-50000cps, 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:
1. Yongeza ngqo kwimveliso
Kule ndlela, kufuneka kukhethwe uhlobo olulibazisekileyo lwe-hydroxyethyl cellulose, kwaye kusetyenziswa i-hydroxyethyl cellulose enexesha lokunyibilika elingaphezulu kwemizuzu engama-30. Amanyathelo ngala alandelayo: ① Faka inani elithile lamanzi acocekileyo kwisikhongozeli esine-agitator ephezulu yokucheba ② Qala ukuxuba ngokuqhubekayo ngesantya esiphantsi, kwaye kwangaxeshanye wongeza kancinci iqela le-hydroxyethyl kwisisombululo ngokulinganayo ③Qhubeka uxuba de zonke izinto ezi-granular zimanzi ④ Yongeza ezinye izongezo kunye nezongezo ezisisiseko, njl. ⑤Xuba de zonke amaqela e-hydroxyethyl anyibilike ngokupheleleyo, uze wongeze ezinye izinto kwifomyula uze ucole de imveliso igqitywe.
2. Ixhotyiswe ngotywala obuvela kunina ukuze busetyenziswe kamva
Le ndlela inokukhetha uhlobo olukhawulezileyo, kwaye ine-cellulose effect anti-mildew. Inzuzo yale ndlela kukuba inokuguquguquka okukhulu kwaye inokongezwa ngokuthe ngqo kwipeyinti yelatex. Indlela yokulungiselela iyafana namanyathelo ①-④.
3. Yenza iporridge ukuze uyisebenzise kamva
Ekubeni izinyibilikisi zendalo zingezizo zinyibilikisi kakuhle (ezinganyibilikiyo) kwi-hydroxyethyl, ezi zinyibilikisi zingasetyenziselwa ukwenza i-porridge. Ezona zinyibilikisi zendalo zisetyenziswa kakhulu zi-organic liquids kwi-latex paint formulations, ezifana ne-ethylene glycol, i-propylene glycol, kunye nee-film-forming agents (ezifana ne-diethylene glycol butyl acetate). I-porridge hydroxyethyl cellulose inokongezwa ngqo kwi-penti. Qhubeka uvuselela ide inyibilike ngokupheleleyo.
Ii-putty
Okwangoku, kwizixeko ezininzi kwilizwe lam, i-putty engangeni manzi kwaye engakhuhliyo ixatyiswa kakhulu ngabantu. Iveliswa yi-acetal reaction ye-vinyl alcohol kunye ne-formaldehyde. Ke ngoko, le nto isuswa kancinci ngabantu, kwaye iimveliso ze-cellulose ether series zisetyenziselwa ukuthatha indawo yale nto. Oko kukuthi, kuphuhliso 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 kunye ne-hydroxypropyl methyl kufuneka zikhethwe. I-viscosity specification ngokubanzi iphakathi kwe-40000-75000cps. Imisebenzi ephambili ye-cellulose kukugcina amanzi, 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 nobungakanani bokungena kwe-cellulose obukhethwe zezi fomyula zimbini nazo zahlukile. Ubungakanani obongeziweyo bumalunga ne-2‰-3‰.
Ixesha leposi: Epreli-28-2024