Ether-ka Cellulose waa polymer-ka-molecular-ka sare ee aan-ionic-ka-soo-baxa ahayn, kaas oo ah biyo-milmi iyo dareere-milmi.Waxay saameyn kala duwan ku leedahay warshadaha kala duwan.Tusaale ahaan, alaabta dhismaha kiimikada, waxay leedahay saamaynta soo socota ee isku dhafan:
①Wakiilada haynta biyaha, ② Dhumuc weyn, ③Qabaynta hantida, ④ hantida samaynta filimka,
⑤Binder
In warshadaha chloride polyvinyl, waa emulsifier iyo kala firdhiso;warshadaha dawooyinka, waa binder iyo a gaabis ah oo la kontaroolo walxaha qaab-dhismeedka sii daayo, iwm. Sababtoo ah cellulose waxay leedahay saameyno kala duwan oo isku dhafan, codsigeeda Beertu sidoo kale waa tan ugu ballaaran.Marka xigta, waxaan diiradda saari doonaa isticmaalka iyo shaqada ether cellulose ee qalabka dhismaha ee kala duwan.
In rinji cinjirka
In warshadaha rinjiga cinjirka ah, si ay u doortaan hydroxyethyl cellulose, qeexidda guud ee viscosity siman waa 30000-50000cps, taas oo u dhiganta qeexitaanka ee HBR250, iyo qiyaasta tixraaca guud ahaan ku saabsan 1.5‰-2‰.Shaqada ugu weyn ee hydroxyethyl ee rinjiga cinjirka ah waa in ay dhumucdo, ka hortagto gelation ee midabka, caawinta kala firidhsan ee midabka, xasiloonida ee cinjirka, iyo kordhinta viscosity ee qaybaha, taas oo ka caawisaa in si siman waxqabadka dhismaha. : Hydroxyethyl cellulose ayaa ku habboon in la isticmaalo.Waxaa lagu milmi karaa biyo qabow ama biyo kulul, mana saameynayso qiimaha pH.Waxaa loo isticmaali karaa si badbaado leh inta u dhaxaysa qiimaha PI 2 iyo 12. Hababka adeegsigu waa sida soo socota:
1. Ku dar si toos ah wax soo saarka
habkan, hydroxyethyl cellulose nooca daahday waa in la doortaa, iyo hydroxyethyl cellulose leh waqti kala diri ka badan 30 daqiiqo ayaa la isticmaalaa.Tallaabooyinka waa sida soo socota: ① Ku rid qadar biyo ah oo saafi ah weel ay ku rakiban yihiin kicinta sare ee xiirta Dhammaan walxaha granular waa la qooyay ④Ku dar waxyaabo kale oo lagu daro iyo waxyaabaha aasaasiga ah, iwm.
2. Lagu rakibay khamriga hooyada si hadhow loo isticmaalo
Habkani wuxuu dooran karaa nooca degdega ah, wuxuuna leeyahay saameyn liddi ku ah caarada cellulose.Faa'iidada habkani waa in uu leeyahay dabacsanaan weyn oo si toos ah loogu dari karo rinjiga cinjirka.Habka diyaarinta waa isku mid sida tallaabooyinka ①-④.
3. Ka samee boorash si hadhow loo isticmaalo
Maadaama dareerayaasha organic ay yihiin dareerayaal liidata (aan milmi karin) hydroxyethyl, dareerayaashan waxaa loo isticmaali karaa in lagu sameeyo boorash.Walxaha dabiiciga ah ee inta badan la isticmaalo waa dareerayaasha dabiiciga ah ee ku jira qaababka rinjiga cinjirka ah, sida ethylene glycol, propylene glycol, iyo walxaha samaynta filimada (sida diethylene glycol butyl acetate).Boorashka hydroxyethyl cellulose si toos ah ayaa loogu dari karaa rinjiga.Sii wad inaad walaaqdo ilaa si buuxda u milmo.
In putty
Waqtigan xaadirka ah, inta badan magaalooyinka dalkayga, biyaha u adkaysta iyo xoqidda u adkaysta deegaanka-saaxiibtinimo putty ayaa asal ahaan lagu qiimeeyay dadka.Waxaa soo saaray falcelinta acetal ee khamriga vinyl iyo formaldehyde.Sidaa darteed, maaddadan ayaa si tartiib tartiib ah u baabi'isa dadka, iyo alaabta taxanaha ether cellulose waxaa loo isticmaalaa in lagu beddelo alaabtan.Taasi waa in la yiraahdo, horumarinta qalabka dhismaha ee deegaanka, cellulose hadda waa alaabta kaliya.
Ku dhejinta biyaha u adkaysta, waxay u qaybsantaa laba nooc: budada qallalan iyo dhejiska.Labadan nooc ee putty, methyl cellulose iyo hydroxypropyl methyl waa in la doortaa.Tilmaamaha viscosity guud ahaan waa inta u dhaxaysa 40000-75000cps.Hawlaha ugu muhiimsan ee cellulose waa haynta biyaha, isku-xidhka iyo saliidda.
Tan iyo hababka putty ee soo saarayaasha kala duwan ay kala duwan yihiin, qaar ka mid ah waa calcium cawl, kalsiyum fudud, sibidhka cad, iwm, iyo qaar ka mid ah budada gypsum, calcium cawl, calcium iftiin, iwm, si tafatirka, viscosity iyo infiltration qadarka cellulose la doortay. labada qaacido sidoo kale way kala duwan yihiin.Qadarka lagu daray waa qiyaastii 2‰-3‰.
Waqtiga boostada: Meey-09-2023