Asali na ilimin polymer foda

1. Tunani na asali

Rayayyun polymer fodaShin babban ƙari ne don bushewar foda shirye tare da ciminti ko tushen gypsum.

Rayayyun marigayi foda nemiyar polymer wanda yake fesa da bushe kuma yana tara daga 2um don samar da barbashi na 80 ~ 120um. Domin saman barbashi suna da alaƙa da wani m, mai wuya-tsari-tsarin-tsari mai tsayayya da foda, muna samun bushe polymer powders. Suna da sauƙin zuba da jaka don ajiya a cikin shago. Lokacin da foda ya gauraya da ruwa, ciminti ko turmi na tushen gypsum, da kuma asalin barbashi (2um) a cikin shi na asali latex foda.

Yana da kyakkyawar fahimta, sake watsa abubuwa a cikin wani emulsion akan ruwa, kuma yana da ainihin kaddarorin sinadarai kamar emulsion na asali. Ta hanyar ƙara m polymer foda zuwa ciminti mai tushe ko gypsum-tushen bushewar turmi, iri daban-daban na turmi na iya inganta, kamar: kamar: kamar:

Inganta m da haɗin tururuwa;

Rage ruwa sha shaads na kayan da na roba na kayan;

Karfin m, juriya na juriya, juriya na abuta da karkota na kayan mantuwa;

Haɓaka aikin ginin kayan, da sauransu.

2. Nau'in polymer mai rikitarwa

A halin yanzu, babban aikace-aikacen a kasuwa za a iya raba shi a Latex:

Vinyl acetate da Ethylere cokili na farko (VC / E), Ethylene da Vinyl chloride da Vinyl Acetate da Etyl ACETate da Ethylene Ternary foda (vin / e / e / VeoVa), vinyl acetate and higher fatty acid vinyl ester copolymer rubber powder (Vac/VeoVa), acrylate and styrene copolymer rubber powder (A/S), vinyl acetate and acrylate and higher fatty acid Vinyl ester terpolymer rubber powder (Vac/A/ Veova), Vinyl Acetate Roba Froda (PVAC), Styrene da butdadiene na ɗakunan ƙasa (SBR), da dai sauransu.

3. Abubuwan da ke tattare da foda na polymer

Motsa polymer powdmer yawanci fararen fata ne, amma 'yan suna da wasu launuka. Mummunanta sun hada da:

Polymer resin: yana cikin ainihin ɓangaren ɓangaren foda na roba na roba, kuma kuma shine babban bangaren na polymer foda.

Additived (na ciki): Tare da guduro, yana taka rawar da ke gyara guduro.

Ƙari (waje): ƙarin kayan an ƙara ƙarin don ƙara fadada faɗin aikin da m polymer foda.

Colloid mai kariya: wani Layer na kayan aikin hydrophilic na lantarki da aka nannade a saman barbashi latex foda, da kariya ta mafi karuwa na mafi yawan marisel foda shi ne polyvinyl barasa.

Wakilin Anti-Cakiniya: Kyakkyawan ma'adinan ma'adinai, galibi don hana foda na roba daga ciki (zubar da kaya daga jakunkuna).

4. Matsakaicin mai hana polymer foda a turmi

Ana hana foda na latex foda a cikin fim kuma yana aiki azaman wakili na biyu a matsayin mai na biyu adnessive;

Colloid mai kariya yana ɗaukar nauyin turmi (ba zai lalata shi da ruwa ba bayan samuwar fim, ko "watsawa na sakandare";

Ana rarraba kayan aikin polymer na fim a cikin tsarin turmi azaman kayan karawa, ta yadda ake kara hadin gwiwar turmi;

5. Matsayin da m polymer foda a cikin turwa na rigar:

Inganta aikin gini;

Inganta kaddarorin rarar;

Haɓaka tsayayyen juriya da sag.

Inganta hadin kai;