Uburyo bwo kwipimisha ubwiza bwa redispersible powderx

Kugeza ubu, ifu ikoreshwa cyane ya redispersible latex kwisi kwisi harimo vinyl acetate na porojeri ya Ethylene copolymer, Ethylene, vinyl chloride na vinyl laurate ternary copolymer ifu, vinyl acetate, Ethylene hamwe nifu ya aside irike vinyl ester ternary copolymer. Ifu, izi poro eshatu zisubirwamo za polymer ziganje kumasoko yose, cyane cyane vinyl acetate na powder ya Ethylene copolymer ifu ya VAC / E, ifata umwanya wambere murwego rwisi kandi ikagaragaza ibimenyetso bya tekinike biranga ifu ya polymer. Haracyari igisubizo cyiza cya tekiniki mubijyanye nuburambe bwa tekinike hamwe na polymers ikoreshwa muguhindura minisiteri:

1. Nimwe muma polymers akoreshwa cyane kwisi;

2. Uburambe bwo gusaba mubijyanye nubwubatsi nibyinshi;

3. Irashobora guhura nimiterere ya rheologiya isabwa na minisiteri (ni ukuvuga kubaka byubatswe);

4. Polymer resin hamwe nabandi ba monomers ifite ibiranga ibintu bito bihindagurika (VOC) na gaze irakaza;

5. Ifite ibiranga imbaraga za UV nziza, kurwanya ubushyuhe bwiza nigihe kirekire;

6. Kurwanya cyane saponification;

7. Ifite uburebure bwagutse bwikirahure (Tg);

8. Ifite uburyo bwiza cyane bwo guhuza, guhinduka hamwe nubukanishi;

9.

10. Biroroshye cyane guhuza hamwe na colloid ikingira (polyvinyl alcool) hamwe nibikorwa byiza.

Uburyo bwo gutahura imbaraga zo guhuza imbaraga za redispersible latex zirangwa muburyo bwo kugena nuburyo bukurikira:

1. Ubwa mbere, fata 5g yifu ya redxersible latex hanyuma uyishyire mubikombe bipima ikirahure, ongeramo 10g y'amazi meza hanyuma ubireke muminota 2 kugirango ubivange neza;

2. Noneho reka reka igikombe kivanze cyo gupima gihagarare muminota 3, hanyuma wongere ukangure muminota 2;

3. Noneho shyira igisubizo cyose mugikombe cyo gupimisha ku isahani isukuye ishyizwe mu buryo butambitse;

4. Shira isahani yikirahure muri DW100 yubushyuhe buke bwibidukikije;

5. Hanyuma, shyira muburyo bwo kwigana ibidukikije kuri 0 ° C kumasaha 1, fata isahani yikirahure, ugerageze igipimo cyerekana firime, kandi ubare imbaraga zisanzwe zihuza ifu ya redispersible latx ikoreshwa ukurikije igipimo cya firime. .