Sanin asali na rarrabuwar polymer foda

1. asali ra'ayi

Redispersible polymer fodashine babban ƙari ga busassun busassun busassun busassun turmi mai gauraya irin su ciminti ko tushen gypsum.

Redispersible latex foda ne a polymer emulsion wanda aka fesa-bushe da kuma tara daga farko 2um don samar da mai siffar zobe barbashi na 80 ~ 120um.Saboda abubuwan da ke cikin sassan suna mai rufi tare da inorganic, foda mai ƙarfi-tsari, muna samun busassun polymer powders.Suna da sauƙin zubawa da jaka don ajiya a cikin ɗakunan ajiya.Lokacin da aka hada foda da ruwa, siminti ko turmi mai tushen gypsum, za'a iya sake tarwatsa shi, kuma abubuwan da ke cikinsa (2um) zasu sake zama daidai da na asali na latex, don haka ana kiransa redispersible latex powder.

Yana da kyau redispersibility, sake tarwatsa a cikin wani emulsion a lamba tare da ruwa, kuma yana da daidai wannan sinadaran Properties kamar na asali emulsion.Ta ƙara tarwatsa polymer foda zuwa tushen siminti ko tushen busasshen gypsum busassun busassun turmi, ana iya inganta kaddarorin daban-daban na turmi, kamar:

Inganta mannewa da haɗin kai na turmi;

Rage shayar da ruwa na kayan abu da na roba na kayan aiki;

Ƙarfin sassauƙa, juriya mai tasiri, juriya na abrasion da dorewa na kayan ƙarfafawa;

Inganta aikin ginin kayan aiki, da sauransu.

2. Nau'in nau'in nau'in nau'in nau'in polymer foda

A halin yanzu, ana iya raba manyan aikace-aikace a kasuwa zuwa rarraba latex:

Vinyl acetate da ethylene copolymer roba foda (Vac / E), ethylene da vinyl chloride da vinyl laurate ternary copolymer roba foda (E / Vc / VL), vinyl acetate da ethylene kuma mafi girma m acid vinyl ester terpolymerization Rubber foda (Vac / E /). VeoVa), vinyl acetate da mafi girma fatty acid vinyl ester copolymer roba foda (Vac/VeoVa), acrylate da styrene copolymer roba foda (A/S), vinyl acetate da acrylate kuma mafi girma m acid Vinyl ester terpolymer roba foda (Vac/A/). VeoVa), vinyl acetate homopolymer roba foda (PVac), styrene da butadiene copolymer roba foda (SBR), da dai sauransu.

3. A abun da ke ciki na tarwatsa polymer foda

Foda mai tarwatsewa yawanci fari ne, amma kaɗan suna da wasu launuka.Abubuwan da ke cikinta sun haɗa da:

Resin polymer: Yana cikin babban ɓangaren ɓangarorin foda na roba, kuma shine babban ɓangaren foda na polymer mai iya tarwatsawa.

Additive (na ciki): tare da guduro, yana taka rawar gyara guduro.

Additives (na waje): Ana ƙara ƙarin kayan don ƙara haɓaka aikin foda na polymer mai tarwatsewa.

Colloid mai kariya: Layer na kayan hydrophilic wanda aka nannade a saman abubuwan da za a iya tarwatsawa na latex foda, colloid mai kariya na mafi yawan redispersible latex foda shine polyvinyl barasa.

Wakilin hana-caking: filaye mai kyau na ma'adinai, galibi ana amfani da shi don hana foda na roba daga yin burodi yayin ajiya da sufuri da kuma sauƙaƙe kwararar foda (zuba daga jakunkuna na takarda ko tankuna).

4. Matsayin foda polymer mai rarrabawa a cikin turmi

Ana tarwatsa foda na latex wanda za'a iya tarwatsawa a cikin fim kuma yana aiki azaman wakili mai ƙarfafawa azaman mannewa na biyu;

Colloid mai kariya yana ɗaukar tsarin turmi (ba za a lalata shi da ruwa ba bayan samar da fim, ko "watsewa na biyu");

An rarraba resin polymer mai yin fim a cikin tsarin turmi a matsayin kayan ƙarfafawa, ta haka ne ya kara haɗuwa da turmi;

5. Matsayin rarrabuwar polymer foda a cikin rigar turmi:

Inganta aikin gini;

Inganta kwarara Properties;

Ƙara thixotropy da juriya na sag;

inganta haɗin kai;