Momwe mungayesere redispersible polima ufa RDP?

Mayeso njira katundu ndi mamasukidwe akayendedwe wa redispersible polima ufa RDP, Padziko lonse lapansi amagwiritsidwa ntchito kumwazikana polima ufa RDP ndi vinilu acetate ndi ethylene copolymerized emulsion ufa, ethylene ndi vinilu kolorayidi ndi lauric acid vinilu ester ternary copolymer ufa, vinyllene acetate ndi mkulu mafuta asidi vinilu ester ternary copolymer ufa, atatu awa kuti abalalitse polima ufa RDP mu lonse msika waukulu, makamaka vinilu acetate ndi ethylene copolymer ufa VAC/E, Iwo ali ndi udindo wotsogola m'munda wapadziko lonse ndipo akuimira makhalidwe luso redispersible polima ufa RDP.

Redispersible polima ufaRDP ili ndi mphamvu zomangira zomangira, imathandizira kusinthasintha kwa matope ndipo imakhala ndi nthawi yayitali yotsegulira, imapatsa matope kukana kwambiri zamchere, kuwongolera kumamatira kwamatope, mphamvu yosunthika, yopanda madzi, pulasitiki, kukana kuvala ndi kumanga, mumatope osinthika otsutsana ndi ming'alu. ali ndi kusinthasintha kwakukulu.

Kuchokera paukadaulo waukadaulo wa polima wosinthidwa ndi matope, akadali njira yabwinoko yaukadaulo:

1, RDP ndi imodzi mwama polima omwe amagwiritsidwa ntchito kwambiri padziko lonse lapansi.
2, Zochita zambiri pantchito yomanga;

3, amatha kukwaniritsa zofunikira za matope a rheological properties (ndiko, kumanga kofunikira);

4, ndi utomoni wina wa polima umakhala ndi zinthu zochepa zosakhazikika (VOC) komanso mawonekedwe a mpweya wochepa;

5, yokhala ndi kukana kwa UV komanso kukana kutentha komanso kukhazikika kwanthawi yayitali;

6, ndi kukana mkulu saponification;

7, ndi galasi lonse kutentha osiyanasiyana (Tg);

8, yokhala ndi mgwirizano wabwino kwambiri, kusinthasintha komanso makina;

9, magwiridwe antchito osavuta komanso ofanana a kuphatikiza koteteza colloid (polyvinyl alcohol).

Njira yodziwira mphamvu yomatira ya ufa wa polima RDP imadziwika ndi njira zotsatirazi:

1, choyamba tengani redispersible polima ufa RDP 5g mu galasi kuyeza chikho, kuwonjezera 10g madzi oyera ndi kusonkhezera kwa 2min, kupanga wogawana wosanganiza;

2. Ikani chikho choyezera chosakanikirana kwa 3min ndikuyambitsanso 2min;

3. Pakani mankhwala onse mu kapu yoyezera pa mbale yagalasi yopingasa;

4, ikani mbale galasi mu DW100 otsika kutentha chilengedwe kayeseleledwe kayeseleledwe bokosi;

5, potsiriza anaika mu 0 ° C chilengedwe kayeseleledwe mikhalidwe kwa ola 1, chotsani mbale galasi, kuyesa mlingo mapangidwe filimu, malinga ndi filimu mapangidwe mlingo kutembenuka redispersible polima ufa RDP ntchito muyezo kugwirizana mphamvu.