Njira yoyesera ya kukhuthala kwa ufa wa latex wopangidwanso

Pakalipano, mankhwala omwe amagwiritsidwa ntchito kwambiri padziko lonse lapansi akuphatikizapo vinyl acetate ndi ethylene copolymer powder, ethylene, vinyl chloride ndi vinyl laurate ternary copolymer powder, vinyl acetate, ethylene ndi apamwamba mafuta acid vinyl ester ternary copolymer powder. Ufa, ma ufa atatuwa opangidwanso ndi polima amalamulira msika wonse, makamaka vinyl acetate ndi ethylene copolymer ufa VAC/E, womwe umakhala wotsogola padziko lonse lapansi ndipo umayimira ukadaulo wa ufa wa polima wotulukanso. Komabe yankho labwino kwambiri laukadaulo malinga ndi luso laukadaulo ndi ma polima omwe amagwiritsidwa ntchito posintha matope:

1. Ndi imodzi mwa ma polima omwe amagwiritsidwa ntchito kwambiri padziko lonse lapansi;

2. Zomwe zimagwiritsidwa ntchito pa ntchito yomanga ndizo zambiri;

3. Ikhoza kukumana ndi rheological katundu wofunidwa ndi matope (ndiko kuti, constructability chofunika);

4. The polima utomoni ndi monomers ena ali ndi makhalidwe otsika organic kusakhazikika kanthu (VOC) ndi otsika mpweya mpweya;

5. Ili ndi makhalidwe abwino kwambiri a UV kukana, kutentha kwabwino komanso kukhazikika kwa nthawi yayitali;

6. Kukana kwakukulu kwa saponification;

7. Ili ndi kutentha kwakukulu kwambiri kwa galasi (Tg);

8. Ili ndi mgwirizano wabwino kwambiri, wosinthika komanso wamakina;

9. Khalani ndi chidziwitso chautali kwambiri pakupanga mankhwala amomwe mungapangire zinthu zokhazikika komanso chidziwitso pakusunga bata;

10. Ndizosavuta kuphatikiza ndi colloid yoteteza (polyvinyl alcohol) yokhala ndi magwiridwe antchito apamwamba.

Njira yodziwira mphamvu yomangirira ya ufa wa latex wopangidwanso amadziwika kuti njira yodziwikiratu ndi motere:

1. Choyamba, tengani 5g wa ufa wopangidwanso ndi latex ufa ndikuuyika mu kapu yoyezera galasi, onjezerani 10g ya madzi oyera ndikugwedeza kwa mphindi ziwiri kuti musakanize mofanana;

2. Kenako lolani chikho choyezera chosakaniza chiyime kwa mphindi zitatu, kenaka gwedezaninso kwa mphindi ziwiri;

3. Kenako ikani yankho lonse mu kapu yoyezera pa mbale yagalasi yoyera yoikidwa mopingasa;

4. Ikani galasi mbale mu DW100 otsika kutentha chilengedwe kayeseleledwe chipinda mayeso;

5. Potsirizira pake, ikani pansi pa chikhalidwe cha 0 ° C kwa ola la 1, chotsani mbale ya galasi, yesani mlingo wa kupanga filimu, ndikuwerengera mphamvu yogwirizanitsa ya redispersible latex powder yomwe ikugwiritsidwa ntchito molingana ndi kupanga filimu. .