Bii o ṣe le ṣe idanwo lulú polymer redispersible RDP?

Ọna idanwo fun awọn ohun-ini ati iki ti polymer redispersible powder RDP, Ni agbaye ni a lo ni lilo pupọ lati tuka polima lulú RDP pẹlu vinyl acetate ati ethylene copolymerized emulsion powder, ethylene ati vinyl chloride ati lauric acid vinyl ester ternary copolymer powder, vinyl acetate ati ethylene ọra ati oga. acid fainali ester ternary copolymer powder, awọn mẹta wọnyi lati fọn polima lulú RDP ni gbogbo oja ako, paapa fainali acetate ati ethylene copolymer lulú VAC / E, O wa lagbedemeji a asiwaju ipo ni agbaye aaye ati ki o duro awọn imọ abuda kan ti redispersible polymer powder RDP.

Redispersible polima lulúRDP ni o ni dayato mnu agbara, mu awọn ni irọrun ti amọ ati ki o ni kan to gun šiši akoko, fun amọ o tayọ ipilẹ resistance, mu awọn alemora ti amọ amọ, agbara flexural, mabomire, ṣiṣu, wọ resistance ati ikole, ni rọ egboogi-crack amọ. ni irọrun ni okun sii.

Lati iriri imọ-ẹrọ ti polymer ti a yipada nipasẹ amọ-lile, o tun jẹ ojutu imọ-ẹrọ to dara julọ:

1, RDP jẹ ọkan ninu awọn polima ti a lo pupọ julọ ni agbaye.
2, Iriri ohun elo ti o gbooro ni aaye ti faaji;

3, le pade awọn ibeere ti awọn ohun-ini rheological amọ (iyẹn ni, ikole ti a beere);

4, pẹlu miiran monomer polima resini ni o ni kekere Organic iyipada ọrọ (VOC) ati kekere irritant gaasi abuda;

5, pẹlu resistance uv ti o dara julọ ati resistance ooru to dara ati iduroṣinṣin igba pipẹ;

6, pẹlu ga saponification resistance;

7, pẹlu iwọn otutu gilasi jakejado (Tg);

8, pẹlu jo o tayọ okeerẹ imora, ni irọrun ati darí-ini;

9, irọrun ati iru iṣẹ ti colloid aabo (ọti polyvinyl) apapo.

Ọna wiwa fun agbara alemora ti polymer powder RDP jẹ ijuwe nipasẹ awọn ọna ipinnu atẹle:

1, akọkọ mu lulú polymer redispersible RDP 5g sinu ago wiwọn gilasi kan, fi omi mimọ 10g kun ati aruwo fun 2min, jẹ ki o dapọ daradara;

2. Ṣeto ago wiwọn adalu fun 3min ati ki o tunru lẹẹkansi fun iṣẹju 2;

3. Smear gbogbo ojutu ni ago wiwọn lori apẹrẹ gilasi ti o mọ petele;

4, fi awọn gilasi awo sinu DW100 kekere otutu ayika kikopa apoti igbeyewo;

5, nikẹhin ti a gbe sinu awọn ipo kikopa ayika 0 ° C fun wakati 1, mu awo gilasi jade, ṣe idanwo oṣuwọn idasile fiimu, ni ibamu si iyipada oṣuwọn iṣelọpọ fiimu ti pipọpo polymer redispersible RDP ni lilo agbara isunmọ boṣewa.