I-Cellulose ether yi-polymer engeyiyo i-ionic semi-synthetic, e-soluble emanzini kunye ne-solvent-soluble. Ineempembelelo ezahlukeneyo kumashishini ahlukeneyo. Umzekelo, kwizinto zokwakha iikhemikhali, zineempembelelo ezidibeneyo zilandelayo:
① umenzeli ogcina amanzi, ②Thickener, ③ipropathi yokulinganisa, ④ipropathi yokwenza ifilim, ⑤Binder
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.
kwipeyinti yelatex
Kwishishini lepeyinti ye-latex, ukukhetha i-cellulose ye-hydroxyethyl, ukucaciswa ngokubanzi kwe-viscosity elinganayo yi-30000-50000cps, ehambelana nokucaciswa kwe-HBR250, kunye ne-reference dosage 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 zimanziswe ④Yongeza ezinye izongezo kunye nezongezo ezisisiseko, njl. njl. ⑤Vuselela de kube Amaqela e-hydroxyethyl achithwa ngokupheleleyo, ngoko Yongeza amanye amacandelo kwifomula kwaye ugaye de kube yimveliso egqityiweyo.
2. 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.
3. Yenze 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.
kwi 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. Ukucaciswa kwe-viscosity ngokubanzi phakathi 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-04-2023