Ungayivavanya njani i-RDP yepowder yepolymer ephinda inyibilike?

Indlela yokuvavanya iipropati kunye ne-viscosity ye-polymer powder echithwayo kwakhona, Ehlabathini lonke isetyenziswa kakhulu ukusasaza i-polymer powder RDP nge-vinyl acetate kunye ne-ethylene copolymerized emulsion powder, i-ethylene kunye ne-vinyl chloride kunye ne-lauric acid vinyl ester ternary copolymer powder, i-vinyl acetate kunye ne-ethylene kunye ne-senior fatty acid vinyl ester ternary copolymer powder, ezi zintathu zisasaza i-polymer powder RDP kwimarike yonke, ngakumbi i-vinyl acetate kunye ne-ethylene copolymer powder VAC/E, Ithatha indawo ephambili kwihlabathi liphela kwaye imele iimpawu zobugcisa ze-redispersible polymer powder RDP.

Umgubo wepolymer ophinda uchithekeI-RDP inamandla amakhulu okubopha, iphucula ukuguquguquka kwesamente kwaye inexesha elide lokuvula, inika isamente ukumelana okuhle kwe-alkaline, iphucula ukunamathela kwesamente, amandla e-flexural, amanzi angangeni, i-plasticity, ukumelana nokuguguleka kunye nolwakhiwo, kwisamente esiguquguqukayo esichasene nokuqhekeka inokuguquguquka okunamandla.

Ukusuka kumava obuchwephesha e-polymer eguqulwe yi-mortar, isesisisombululo sobuchwepheshe esingcono:

1, i-RDP yenye yee-polymers ezisetyenziswa kakhulu kwihlabathi liphela.
2, Amava amaninzi okusebenzisa kwicandelo loyilo lwezakhiwo;

3, inokuhlangabezana neemfuno zeempawu ze-rheological ze-mortar (oko kukuthi, ulwakhiwo olufunekayo);

4, kunye nezinye ii-resin ze-polymer ze-monomer zine-volatile matter ephantsi (i-VOC) kunye neempawu zegesi ezinomsindo ophantsi;

5, enokumelana okuhle kakhulu ne-UV kunye nokumelana okuhle nobushushu kunye nozinzo lwexesha elide;

6, enokumelana okuphezulu kwe-saponification;

7, enomlinganiselo obanzi wobushushu beglasi (Tg);

8, enobuhlobo obupheleleyo obubalaseleyo, ukuguquguquka kunye neempawu zoomatshini;

9, ukusebenza okulula nokufanayo komxube we-colloid okhuselayo (i-polyvinyl alcohol).

Indlela yokufumanisa amandla okuncamathelisa kwi-polymer powder RDP ephinda inyibilike ibonakaliswa ziindlela ezilandelayo zokumisela:

1, qala ngokuthatha umgubo wepolymer ophinda uqhekeke i-RDP 5g kwikomityi yokulinganisa yeglasi, yongeza i-10g yamanzi acocekileyo uze uxube imizuzu emi-2, udibanise ngokulinganayo;

2. Beka indebe yokulinganisa exutyiweyo imizuzu emi-3 uze uvuselele kwakhona imizuzu emi-2;

3. Gcoba yonke isisombululo kwikomityi yokulinganisa kwipleyiti yeglasi ecocekileyo ethe tye;

4, faka ipleyiti yeglasi kwibhokisi yovavanyo lokulinganisa imeko-bume yobushushu obuphantsi be-DW100;

5, ekugqibeleni ibekwe kwiimeko zokulinganisa okusingqongileyo ze-0°C kangangeyure e-1, khupha ipleyiti yeglasi, uvavanye izinga lokwakheka kwefilimu, ngokwezinga lokuguqulwa kwenqanaba lokwakheka kwefilimu yepowder yepolymer ephinda inyibilike ye-RDP kusetyenziswa amandla aqhelekileyo okubophelela.