Zvenyama zvimiro zve redispersible latex poda

Redispersible polymer poda (RDP) ndeyepamusoro-inoshanda polymer poda inoshandiswa zvakanyanya mukuvaka, machira uye mamwe maindasitiri. Inogadzirwa nekuparadzira emulsion yepolymer mumvura, yozoomesa kuita hupfu. Iyo hupfu inogona kuparadzirwa nyore nyore mumvura kuti iite emulsion yakagadzikana, ichiita kuti ive polymer yakasiyana-siyana.

Hunhu hwemuviri hweRDP hunoita basa rakakosha mukuita kwayo uye kukodzera kwezvishandiso zvakasiyana. Muchikamu chino, tichakurukura zvakasiyana-siyana zvemuviri zveRDP uye nei zvichikosha.

Particle Saizi uye Kugovera

Iyo particle size uye kugovera kweRDP inosarudza kuyerera kwayo uye nyore kubata. Iyo diki saizi yechikamu, zviri nani kuyerera. RDP hupfu hunowanzo mu5-200 micron renji uye ine yakatetepa saizi yekugovera. Iyo yunifomu particle size distribution inovimbisa kuti hupfu hunopararira nyore nyore mumvura uye hunopa emulsion yakagadzikana.

Bulk density

Bulk density huremu hweRDP pavhoriyamu yeyuniti. Iyo yakawanda density yeRDP poda inokanganisa kuchengetedza kwayo uye kutakura. Lower bulk density inoreva huwandu hwehuremu hwakafanana uye inoda imwe nzvimbo yekuchengetera. Nekune rumwe rutivi, kuwanda kwepamusoro kunoreva kuwanda kwehuremu hwakafanana uye kunoda nzvimbo shoma yekuchengetera.

Hulk density yeRDP inosiyana nerudzi, giredhi uye magadzirirwo. Kuwanda kwayo kuri 200-700 kg/m3. Kazhinji, kuderera kwakawanda kunodiwa kuitira nyore kubata uye kutakura.

mvura

Mvura yemukati chinhu chakakosha cheRDP sezvo ichikanganisa kuchengetedza kwayo kugadzikana, dispersibility uye firimu-kugadzira zvinhu. Mvura yemvura inogona kusiyana zvichienderana nekugadzirwa kwekugadzira, kuchengetedza mamiriro uye kuumbwa. Kazhinji, mvura inowanikwa muRDP inotangira kubva ku1-3%, kuchengetedza mvura yakaderera kuti ivandudze kugadzikana kwekuchengetedza kwehupfu.

Mafirimu ekugadzira zvinhu

RDP inowanzo shandiswa seanonamira kana anonamira mukuvaka uye maapplication ekuputira. Iyo firimu-yekugadzira zvimiro, senge kunamatira, kubatana, uye kuchinjika, yakakosha pakuona kukodzera kwayo kune akasiyana maapplication.

Iyo firimu-inogadzira zvimiro zveRDP zvinoenderana nerudzi rwepolymer inoshandiswa, emulsifier mhando uye polymer concentration. MaRDP anogadzirwa kuti ape chaiwo firimu-ekugadzira maitiro kuti asangane nezvinodiwa zvekushandisa kwakasiyana.

redispersibility

Redispersibility inoreva kugona kweRDP kuumba emulsion yakagadzikana kana yawedzerwa kumvura mushure mekuoma. Iyi ficha yakakosha mumashandisirwo mazhinji sezvo ichibvumira kubata nyore uye kusanganisa.

Iyo redispersibility yeRDP inoenderana nemhando uye mhando ye emulsifier inoshandiswa mukugadzira uye mamiriro ekuchengetedza hupfu. RDP poda inogona kuve neyakasiyana-siyana redispersion zvivakwa kubva pane ingangoita maminetsi.

viscosity

Viscosity chiyero chekuramba kwechinhu kuyerera. Iyo viscosity yeRDP emulsion inokanganisa maitiro ayo ekushandisa akadai sekupararira, kuenzanisa uye kunyorova. Yepamusoro viscosities inopa zvirinani kuumbwa kwemafirimu uye kugadzikana, asi zvinogona kuita kuti zvikumbiro zviome.

Iyo viscosity yeRDP emulsions inoenderana nekusangana kwepolymer, emulsifier mhando uye kuumbwa. Inogona kubva kubva pasi kusvika kumusoro, zvichienderana nezvinodiwa zvekushandisa.

mukupedzisa

Mukupedzisa, maitiro emuviri eRDP anoita basa rakakosha mukuita kwayo uye kuita kwayo. Particle size, bulk density, zvemukati memvura, kuumbwa kwemafirimu, redispersibility uye viscosity ndizvo zvakakosha zvemuviri zvimiro zveRDP. Nekunzwisisa hunhu uhu, vagadziri vanogona kugadzirisa RDP kune chaiyo maapplication kusangana nezvinodiwa nevatengi zvakasiyana. RDP inoonekwa seimwe yeanonyanya kushandiswa uye anoshanda polima polima, zvichiita kuti ive yakanakira maindasitiri mazhinji anosanganisira kuvaka, machira uye zvinonamira.