Mokhoa oa ho lekola RDP ea phofo ea polymer?

Mokhoa oa liteko bakeng sa thepa le viscosity ea redispersible polymer powder RDP, Lefats'eng ka bophara e sebelisoa haholo ho qhala phofo ea polymer RDP e nang le vinyl acetate le ethylene copolymerized emulsion powder, ethylene le vinyl chloride le lauric acid vinyl ester ternary copolymer powder, vinyllene acetate le ethylene e phahameng acid vinyl ester ternary copolymer phofo, tsena tse tharo ho qhala phofo ea polymer RDP 'marakeng kaofela, haholo-holo vinyl acetate le ethylene copolymer powder VAC/E, E nka boemo bo ka sehloohong lefapheng la lefats'e mme e emela litšobotsi tsa botekgeniki tsa redispersible polymer powder RDP.

Phofo ea polymer e ka qhaloang hapeRDP e na le matla a ikhethang a tlamahano, e ntlafatsa ho feto-fetoha ha seretse 'me e na le nako e telele ea ho bula, e fana ka seretse se hanyetsanang le alkaline, e ntlafatsa ho khomarela seretse, matla a flexural, metsi a sa keneleng metsi, polasetiki, ho hanyetsa le ho haha, ka har'a seretse se bonolo sa anti-crack. e na le ho tenyetseha ho matla.

Ho tsoa ho boiphihlelo ba tekheniki ba polymer e fetotsoeng ka seretse, e ntse e le tharollo e betere ea tekheniki:

1, RDP ke e 'ngoe ea li-polymer tse sebelisoang haholo lefatšeng.
2, Boiphihlelo bo pharaletseng ba ts'ebeliso lefapheng la meaho;

3, e ka fihlela litlhoko tsa thepa ea rheological ea seretse (ke hore, kaho e hlokahalang);

4, e nang le resin e 'ngoe ea polymer e na le lintho tse fokolang tsa tlhaho (VOC) le litšobotsi tse fokolang tsa khase;

5, e nang le khanyetso e ntle ea UV le ho hanyetsa mocheso o motle le botsitso ba nako e telele;

6, e nang le khanyetso e phahameng ea saponification;

7, e nang le mocheso o pharaletseng oa khalase (Tg);

8, e nang le maqhama a mangata a phethahetseng, ho tenyetseha le thepa ea mochini;

9, ts'ebetso e bonolo le e ts'oanang ea motsoako o sireletsang oa colloid (polyvinyl alcohol).

Mokhoa oa ho lemoha bakeng sa matla a sekhomaretsi a redispersible polymer powder RDP o khetholloa ka mekhoa e latelang ea boikemisetso:

1, qala ka ho nka redispersible polymer phofo RDP 5g ka khalase ea ho lekanya senoelo, eketsa 10g metsi a hloekileng 'me u hlohlelletse 2min, etsa hore e kopane ka tsela e ts'oanang;

2. Beha senoelo sa ho lekanya se tsoakiloeng bakeng sa 3min 'me u hlohlelletse hape bakeng sa 2min;

3. Tlotsa tharollo eohle ka senoelong sa ho lekanya holim'a poleiti e hloekileng ea khalase e tšekaletseng;

4, kenya poleiti ea khalase ka har'a lebokose la tlhahlobo la tlhahlobo ea DW100 ea mocheso o tlase;

5, qetellong e behiloe ka 0 ° C maemo a ho etsisa tikoloho bakeng sa hora ea 1, ntša poleiti ea khalase, leka tekanyo ea sebopeho sa filimi, ho ea ka sekhahla sa sebopeho sa filimi ea phetoho ea redispersible polymer powder RDP ka tšebeliso ea matla a tloaelehileng a tlamahano.