Uhlolojikelele lwe-Re-Dispersible polymer powder

I-re-dispersible polymer powder (RDP) iwuhlobo lwe-polymer material olusetshenziswa kakhulu embonini yezokwakha. Kuyimpushana emhlophe noma emhlophe eyenziwe nge-spray-drying polymer emulsion. Impushana ewumphumela ingaxutshwa kalula namanzi ukuze kwakhiwe ukumiswa okuzinzile okungasetshenziswa njenge-binder, i-adhesive, noma i-coating.

Ama-RDP ajwayele ukusetshenziswa ezinhlobonhlobo zezicelo zokwakha, okuhlanganisa okunamathelisa amathayela, ama-grouts, amakhompiyutha azilinganisayo, kanye nezinhlelo zangaphandle zokugquma nokuqeda (EIFS). Zibuye zisetshenziswe ekukhiqizeni udaka lwengxube eyomile, okuyinhlanganisela kasimende, isihlabathi, nezinye izinto ezisetshenziselwa ukwenza ukhonkolo, ukhonkolo nezinye izinto zokwakha.

Izakhiwo ze-RDPs zingahluka kuye ngohlobo oluthile lwe-polymer esetshenzisiwe, kanye nenqubo yokukhiqiza. Nokho, ngokuvamile, ama-RDP anezimpawu ezilandelayo:

1. Amandla aphezulu okubopha: Ama-RDP angakha amabhondi aqinile anezinhlobonhlobo zama-substrates, okuhlanganisa ukhonkolo, ukhuni, nensimbi.

2. Ukumelana namanzi: Ama-RDP amelana kakhulu namanzi, okuwenza alungele ukusetshenziswa ezindaweni ezimanzi.

3. Ukuvumelana nezimo: Ama-RDP angakhiwa ukuze akwazi ukuguquguquka, okuwavumela ukuba amelane nokucindezeleka nokunyakaza ngaphandle kokuqhekeka noma ukuphuka.

4. Ukusebenza okuhle: Ama-RDP angaxutshwa kalula namanzi ukuze akhe unamathisele obushelelezi, osebenzayo noma ukumiswa.

5. Ukunamathela okuhle: Ama-RDP angakwazi ukubopha kahle ezinhlobonhlobo zama-substrates, kufaka phakathi izindawo ezinama-porous nezingezona izimbotshana.

6. Ukumelana kahle namakhemikhali: Ama-RDP amelana kakhulu nezinhlobonhlobo zamakhemikhali, ahlanganisa ama-asidi, izisekelo, nezincibilikisi.

Kunezinhlobo eziningana ezahlukene zama-RDP atholakalayo emakethe, ngayinye inezindawo zayo nezici ezihlukile. Ezinye zezinhlobo ezivame kakhulu zihlanganisa:

1. Ama-copolymers e-Ethylene-vinyl acetate (EVA): Lawa ma-RDP aguquguquka kakhulu futhi anamathela kahle kakhulu ezinhlobonhlobo zama-substrates. Zivame ukusetshenziswa kumathayela anamathelayo, ama-grouts, kanye ne-EIFS.

2. Ama-copolymers e-Vinyl acetate-ethylene (VAE): Lawa ma-RDP awakwazi ukumelana namanzi futhi anamathela kahle ezinhlobonhlobo zama-substrates. Zivame ukusetshenziswa kuma-insulation angaphandle kanye nama-fininging systems (EIFS), kanye nama-adhesives amathayili nama-grouts.

3. I-Styrene-butadiene (SB) copolymers: Lawa ma-RDP aguquguquka kakhulu futhi anokunamathela okuhle kakhulu ezinhlobonhlobo zama-substrates. Zivame ukusetshenziswa kumathayela anamathelayo, ama-grouts, kanye ne-EIFS.

4. Ama-Acrylic: Lawa ma-RDP awakwazi ukumelana namanzi futhi anamathela kahle ezinhlobonhlobo zama-substrates. Zivame ukusetshenziswa kuma-insulation angaphandle kanye nama-fininging systems (EIFS), kanye nama-adhesives amathayili nama-grouts.

5. I-Polyvinyl alcohol (PVA): Lawa ma-RDP ancibilika kakhulu emanzini futhi anamathela kahle ezinhlobonhlobo zama-substrates. Zivame ukusetshenziswa odakeni lwengxube eyomile kanye nanjenge-binder embotsheni yephepha.

Ngaphezu kokusetshenziswa kwawo embonini yezokwakha, ama-RDP aphinde asetshenziswe kwezinye izinhlelo zokusebenza ezahlukahlukene, okuhlanganisa:

1. Izindwangu zendwangu: Ama-RDP angasetshenziswa njengendlela yokuhlanganisa izindwangu ukuze kuthuthukiswe ukumelana kwamanzi nokuqina.

2. Amapende nama-coatings: Ama-RDP angasetshenziswa njengesibophezelo kumapende namapende ukuze kuthuthukiswe ukunamathela kwawo nokumelana namanzi.

3. Izinto zokunamathisela: Ama-RDP angasetshenziswa njenge-binder kuma-adhesives ukuthuthukisa amandla awo kanye nokumelana namanzi.

4. Imikhiqizo yokunakekelwa komuntu siqu: Ama-RDP angasetshenziswa emikhiqizweni yokunakekelwa komuntu siqu, njengamajeli ezinwele namakhilimu esikhumba, ukuze kuthuthukiswe ukuthungwa kwazo nokuzinza.

Sekukonke, izimpushana ze-polymer ezihlakazeka kabusha ziyizinto eziguquguqukayo nezibalulekile embonini yezokwakha nangale kwalokho. Ngezakhiwo zabo eziyingqayizivele kanye nohlu olubanzi lwezinhlelo zokusebenza, baqinisekile ukuthi bazoqhubeka nokudlala indima ebalulekile ezimbonini eziningi eminyakeni ezayo.