Basa re redispersible latex powder:
1. Iyo inoparara latex poda inoumba firimu uye inoshanda seanonamatira kuti iwedzere simba rayo;
2. Iyo colloid inodzivirira inobatwa nedhaka system (haizokuvadzwa nemvura mushure mekugadzirwa kwemafirimu, kana kuti "secondary dispersion";
3. Iyo firimu-inogadzira polymer resin inogoverwa sechinhu chinosimbisa mukati mese dhaka system, nekudaro ichiwedzera kubatanidzwa kwedhaka;Redispersible emulsion poda imhando yehupfu inonamira yakagadzirwa nelotion (yakakwira molecular polymer) mushure mekupfapfaidza kuomesa.Mushure mekusangana nemvura, poda iyi inogona kukurumidza kuparadzirwa kuti iite lotion, uye ine zvinhu zvakafanana neyokutanga lotion, kureva kuti, mvura inogona kugadzira firimu mushure mekubuda.Iyi firimu ine yakakwirira kuchinjika, yakakwirira mamiriro ekunze kuramba uye yakakwirira kunamatira kune akasiyana substrates.
Basa re redispersible latex powder:
Kuvandudza kukanganisa kwekudzivirira
Redispersible latex poda, iyo inonzi thermoplastic resin.Ifirimu rakapfava rakaputirwa pamusoro pevhu revhu, iro rinogona kutora kukanganiswa kwemasimba ekunze, kuzorora pasina kukuvara, nekudaro ichivandudza kupikisa kwedhaka.
Kuvandudza kupfeka kusagadzikana uye kusimba
Kuwedzera zvakare dispersible latex poda inogona kuwedzera yakaomesesa chisungo pakati pesimende dhaka zvimedu nemafirimu epolymer.Kukwidziridzwa kwesimba rekunamira zvinoenderana nekunatsiridza kugona kwedhaka kutsungirira kushushikana kweshear, kudzikisa chiyero chekupfeka, kunonatsiridza kusapfeka, uye kurebesa hupenyu hwebasa redhaka.
Kuvandudza hydrophobicity uye kuderedza kunyura kwemvura
Kuwedzera redispersible latex poda inogona kuvandudza iyo microstructure yesamende dhaka.Iyo polymer yayo inoumba network isingadzokeri mune simende hydration process, inovhara iyo capillary mune simende gel, inovhara kupinda kwemvura, uye inovandudza kusamira.
Kuvandudza kusimba kwekubatana uye kubatana
Redispersible latex poda ine mhedzisiro yakakosha pakuvandudza simba rekubatanidza uye kubatana kwezvinhu.Nekuda kwekupinda kwemapolymer particles mu pores uye capillaries ye simenti matrix, inoumba yakanaka kubatana mushure me hydration ne simenti.Iyo yakanakisa kunamatira yepolymer resin pachayo inonatsiridza kunamira kwesimende zvigadzirwa zvedhaka kune substrates, kunyanya kusanamatira kwakashata kwemainorganic binders senge simende kune organic substrates sehuni, faibha, PVC, uye EPS, Mhedzisiro yacho iri pachena.
Kuvandudza kugadzikana kwechando-thaw uye nekudzivirira nekudzivirira kuputika kwezvinhu
Redispersible latex poda uye iyo thermoplastic resin inogona kukunda kukuvadzwa kweThermal kuwedzera kwesamende dhaka kunokonzerwa nekusiyana kwekushisa.Kukunda maitiro ehukuru hwakaoma shrinkage deformation uye nyore kuputika kwechenese sement mortar kunogona kuita kuti zvinhu zviwedzere kushanduka, nokudaro zvichivandudza kugadzikana kwenguva refu kwezvinhu.
Kuvandudza kukotama uye kusimba kuramba
Mune yakaomeswa dhizaini yakaumbwa neiyo hydration yesamende dhaka, membrane yepolymer iri elastic uye inochinjika, ichitamba basa rakafanana sechinhu chinofambiswa pakati pemasimende edhaka zvidimbu.Iyo inogona kumira yakakwira deformation mitoro, kuderedza kushushikana, uye kuvandudza tensile uye kukotama kuramba.
Zvakanakira redispersible latex poda
Hapana chikonzero chekuchengeta uye kutakura nemvura, kuderedza mari yekufambisa;Nguva refu yekuchengetedza, anti kutonhora, nyore kuchengeta;Iyo yekurongedza idiki muhukuru, yakareruka muhuremu, uye iri nyore kushandisa;Inogona kusanganiswa nemvura-based binder kuti iite synthetic resin modified premix.Kana yakashandiswa, mvura chete inoda kuwedzerwa, iyo isingangodzivisi zvikanganiso panguva yekusanganiswa panzvimbo, asiwo inovandudza kuchengetedzwa kwekubata kwechigadzirwa.
Nguva yekutumira: Aug-02-2023