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:
①Iarhente yokugcina amanzi
②I-Thickener
③Umgangatho
④Ukwenziwa kwefilimu
⑤ Isibophelelo
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.Emva koko, ndiya kugxininisa ekusebenziseni kunye nomsebenzi we-cellulose ether kwizinto ezahlukeneyo zokwakha.
1. Kwipeyinti yelatex
Kwimboni yepeyinti ye-latex, ukukhetha i-cellulose ye-hydroxyethyl, ukucaciswa ngokubanzi kwe-viscosity elinganayo yi-30000-50000cps, ehambelana nokucaciswa kwe-HBR250, kwaye i-dosage yereferensi 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
Kule ndlela, i-hydroxyethyl cellulose uhlobo lokulibaziseka kufuneka lukhethwe, kunye ne-hydroxyethyl cellulose kunye nexesha lokuchithwa kwemizuzu engama-30.La manyathelo alandelayo: ① Beka umlinganiselo othile wamanzi acocekileyo kwisikhongozeli esinesixhobo sokucheba esiphakamileyo ② Qalisa ngokuqhubekayo ngesantya esiphantsi, kwaye kwangaxeshanye ngokucothayo wongeze iqela le-hydroxyethyl kwisisombululo ngokulungeleleneyo ③Qhubeka ushukumisa de zonke izinto zegranular zixutywe ④Yongeza ezinye izongezo kunye nezongezo ezisisiseko, njl. njl. ⑤Vuselela ade onke amaqela e-hydroxyethyl anyibilike ngokupheleleyo, emva koko Yongeza amanye amacandelo kwifomula kwaye ugaye de kube yimveliso egqityiweyo.
Ⅱ.Ixhotyiswe ngotywala bemama 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.Yenza isidudu ukuze sisetyenziswe kamva
Ekubeni izinyibilikisi zendalo zizinyibilikisi ezihlwempuzekileyo (ezingenakunyibilika) kwi-hydroxyethyl, ezi zinyibilikisiweyo 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.
Okwesibini, eludongeni scraping putty
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 kunye ne-hydroxypropyl methyl kufuneka ikhethwe.Inkcazo ye-viscosity ngokubanzi iphakathi kwe-40000-75000cps.Imisebenzi ephambili ye-cellulose 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 ‰.
Ixesha lokuposa: Feb-16-2023