Menene Redispersible Emulsion Foda?

Redispersible emulsion foda (RDP), kuma aka sani da redispersible polymer foda, shi ne wani powdered nau'i na wani ruwa-tushen emulsion polymer. Yawanci ana samar da shi ta hanyar bushewar cakuda polymer watsawa, yawanci bisa vinyl acetate-ethylene (VAE) ko vinyl acetate-versatile (VAC/VeoVa) copolymers, tare da ƙari daban-daban kamar su colloid masu kariya, surfactants, da plasticizers.

Anan ga yadda ake samar da foda mai redispersible da kuma mahimman halayensa:

Tsarin samarwa:

1. Polymer Emulsion: Ana shirya emulsion na polymer ta hanyar polymerizing monomers irin su vinyl acetate, ethylene, da sauran masu haɗakarwa a gaban ruwa da emulsifiers. Wannan tsari yana haifar da samuwar ƙananan ƙwayoyin polymer waɗanda aka tarwatsa cikin ruwa.
2. Ƙarin Abubuwan Haɗawa: Abubuwan da za a iya ƙara kamar colloid masu kariya, surfactants, da plasticizers ana iya ƙara su cikin emulsion don gyara kaddarorinsa da aikin sa.
3. Fesa bushewa: Ana ciyar da emulsion na polymer a cikin na'urar bushewa, inda za'a sanya shi cikin ɗigon ruwa mai kyau kuma a bushe ta amfani da iska mai zafi. Yayin da ruwa ke ƙafe, ƙaƙƙarfan barbashi na polymer suna samuwa, wanda ke haifar da foda mai gudana kyauta.
4. Tattara da Marufi: Ana tattara busasshen foda daga kasan na'urar bushewar feshin, a juye don cire duk wani abu mai girman gaske, sannan a hada shi don ajiya da sufuri.

Mabuɗin Halaye:

1. Barbashi Size: Redispersible emulsion foda yawanci kunshi mai siffar zobe barbashi da diamita jere daga 'yan micrometers zuwa dubun micrometers, dangane da takamaiman masana'antu tsari da tsari.
2. Redispersibility Ruwa: Ɗaya daga cikin mahimman halaye na RDP shine ikonsa na sake tarwatsawa a cikin ruwa don samar da emulsion mai tsayi lokacin da aka haxa shi da ruwa. Wannan yana ba da damar haɗawa cikin sauƙi a cikin abubuwan da ke tushen ruwa kamar turmi, adhesives, da sutura.
3. Abun ciki na polymer: RDP gabaɗaya ya ƙunshi babban abun ciki na daskararrun polymer, yawanci jere daga 50% zuwa 80% ta nauyi, ya danganta da takamaiman nau'in polymer da tsari.
4. Haɗin Kemikal: Abubuwan sinadaran RDP sun bambanta dangane da nau'in polymer da aka yi amfani da su da duk wani ƙarin abubuwan da aka haɗa yayin aikin masana'antu. Polymers na yau da kullun da ake amfani da su a cikin RDP sun haɗa da vinyl acetate-ethylene (VAE) copolymers da vinyl acetate-versatile (VAC/VeoVa) copolymers.
5. Abubuwan Aiki: RDP yana ba da kewayon kyawawan kaddarorin zuwa ƙira, gami da ingantaccen mannewa, sassauci, juriya na ruwa, da dorewa. Yana haɓaka ƙarfin aiki, ƙarfin injina, da aikin kayan gini daban-daban kamar turmi, adhesives na tayal, masu samarwa, da mahalli masu daidaita kai.

A taƙaice, redispersible emulsion foda (RDP) ne m powdered nau'i na ruwa-tushen emulsion polymers amfani a matsayin Additives a daban-daban yi da kuma masana'antu aikace-aikace. Ƙarfinsa na sake tarwatsawa a cikin ruwa, babban abun ciki na polymer, da kayan aikin da ake so ya sa ya zama muhimmin sashi a cikin tsara kayan gini masu inganci da dorewa.