Muedzo nzira ye viscosity ye redispersible latex poda

Parizvino, anoshandiswa zvakanyanya redispersible latex hupfu munyika anosanganisira vinyl acetate uye ethylene copolymer hupfu, ethylene, vinyl chloride uye vinyl laurate ternary copolymer poda, vinyl acetate, ethylene uye yakakwirira mafuta acid vinyl ester ternary copolymer poda. Upfu, idzi nhatu dzinodzokororwa dzepolymer hupfu dzinotonga pamusika wese, kunyanya vinyl acetate uye ethylene copolymer hupfu VAC/E, iyo inotora chinzvimbo chinotungamira mundima yepasi rose uye inomiririra hunyanzvi hunhu hwepolymer inodhindwa zvakare. Ichiri yakanakisa tekinoroji mhinduro maererano nehunyanzvi ruzivo nemapolymers akaiswa kune dhaka shanduko:

1. Ndiyo imwe yemapolima anonyanya kushandiswa munyika;

2. Chiitiko chekushandisa mumunda wekuvaka ndicho chakanyanya;

3. Inogona kusangana ne rheological properties inodikanwa nedhaka (kureva, inodiwa inovaka);

4. Iyo polymer resin ine mamwe monomers ine maitiro eiyo yakaderera organic volatile matter (VOC) uye yakaderera inogumbura gasi;

5. Iine maitiro ehutano hwakanaka hweUV, kupisa kwakanaka kwekudzivirira uye kugadzikana kwenguva refu;

6. Kuramba kwakanyanya kune saponification;

7. Iine yakakura kwazvo girazi shanduko yekushisa renji (Tg);

8. Iine yakanyatsonaka yakawedzera kusungirirana, kuchinjika uye michina zvinhu;

9. Iva neruzivo rwakareba mukugadzirwa kwemakemikari ekuti ungagadzira sei zvakagadzikana zvigadzirwa zvemhando yepamusoro uye ruzivo mukuchengetedza kugadzikana kwekuchengetedza;

10. Zviri nyore kwazvo kusanganisa nekudzivirira colloid (polyvinyl doro) nekushanda kwepamusoro.

Iyo nzira yekuona yesimba rekubatanidza redispersible latex poda inoratidzirwa mukuti nzira yekutsunga ndeyotevera:

1. Kutanga, tora 5g ye redispersible latex powder woiisa mukapu yekuyeresa girazi, wedzera 10g yemvura yakachena uye simbisa kwemaminitsi maviri kuti iite yakaenzana;

2. Zvadaro rega mukombe wekuyeresa wakasanganiswa umire kwemaminitsi matatu, wozosimudzira zvakare kwemaminitsi maviri;

3. Zvadaro shandisa mhinduro yose mumukombe wekuyeresa pane ndiro yegirazi yakachena yakaiswa yakatambarara;

4. Isa ndiro yegirazi muDW100 yakaderera tembiricha nharaunda simulation test chamber;

5. Pakupedzisira, zviise pasi pemamiriro ekufananidza kwezvakatipoteredza e0 ° C kweawa 1, tora ndiro yegirazi, edza chiyero chekugadzira firimu, uye uverenge simba rakakwana rekubatanidza redispersible latex powder inoshandiswa maererano nehuwandu hwekugadzira firimu. .