Yemukati nekunze madziro putty poda, tile inonamira, tile inonongedza agent, yakaoma poda interface mumiriri, yekunze yekupisa yekuvharisa dhaka yekunze kwemadziro, inozvimisa-leveling dhaka, kugadzirisa dhaka, dhaka rekushongedza, dhaka risina mvura kunze kwekupisa kwekupisa kwakaoma-musanganiswa dhaka.
Mudhaka, ndeye kuvandudza brittleness, yakakwirira elastic modulus uye humwe hutera hwechinyakare simende dhaka, uye kupa dhaka resimende nekushanduka kuri nani uye kusimba kwechisungo chesimba, kuitira kuramba uye kunonoka kugadzirwa kwedhaka resimende.Sezvo iyo polymer uye dhaka zvinoumba interpenetrating network chimiro, inoenderera yepolymer firimu inoumbwa mumapores, iyo inosimbisa chisungo pakati peaggregates uye inovhara mamwe pores mudhaka, saka yakagadziridzwa dhaka mushure mekuoma iri nani pane simende dhaka.Pane kuvandudzika kukuru.
Basa re redispersible latex poda mu putty rinonyanya mune zvinotevera zvinhu:
1. Kuvandudza adhesion uye mechanical properties ye putty.Redispersible latex poda inonamira yehupfu inogadzirwa kubva kune yakakosha emulsion (yakakwira molecular polymer) mushure mekupfapfaidza kuoma.Iyi poda inogona kukurumidza kupararira mu emulsion mushure mekusangana nemvura, uye ine zvinhu zvakafanana neyokutanga emulsion, ndiko kuti, inogona kuumba firimu mushure mokunge mvura inoputika.Iyi firimu ine yakakwirira kuchinjika, yakakwira mamiriro ekunze kuramba uye kuramba kune akasiyana-siyana High adhesion kune substrates.Mukuwedzera, iyo hydrophobic latex poda inogona kuita kuti dhaka risapinde mvura.
2. Kuvandudza kubatanidzwa kweputty, kupikisa kwakanyanya, alkali kuramba, kupfeka kusagadzikana, uye kuwedzera simba rekushanduka-shanduka.
3. Kuvandudza kusapinda kwemvura uye kupera kweputty.
4. Kuvandudza kuchengetwa kwemvura kweputty, kuwedzera nguva yakazaruka, uye kunatsiridza kushanda.
5. Kuvandudza kupikisa kweputty uye kuwedzera kusimba kweputty.
2. Basa redhispersible latex powder mukunamatira tile rinonyanya mune zvinotevera:
1. Sezvo huwandu hwesamende hunowedzera, simba rekutanga rekunamatira tile rinowedzera.Panguva imwecheteyo, kusimba kwekunamira mushure mekunyudzwa mumvura uye kusimba kwekunamira kwesimba mushure mekukwegura kwekupisa kunowedzerawo.Kuwanda kwesamende kunofanira kuva pamusoro pe35%.
2. Nekuwedzera kwehuwandu hwehuwandu hwehupfu hwehupfu hwehupfu, kusimba kwechisungo mushure mekunyura mumvura uye kusimba kwechisungo mushure mekukwegura kwekupisa kwekunamatira tile kunowedzera zvakakodzera, asi kusimba kwechisungo mushure mekukwegura kwekupisa kunowedzera zvakajeka.
3. Nekuwedzera kwehuwandu hwe cellulose ether, simba rekunamatira rinosungirirwa rekunamatira tile mushure mekuchembera kwekushisa kunowedzera, uye simba rekunamatira rinowedzera mushure mekunyura mumvura rinotanga kuwedzera uye rinoderera.Mhedzisiro yacho yakanyanya kunaka kana iyo cellulose ether yemukati yakatenderedza 0.3%.
Paunenge uchishandisa redispersible latex powder, tinofanira kutarisisa kuwanda kwekushandisa, kuitira kuti inyatso kutamba basa rayo.
Nguva yekutumira: Jun-05-2023