I-RDP ye-wall putty

Ihlakazeka kabushaIpolymer powder RDP/VAE, i-emulsion ekhethekile yokumisa i-powder eyenziwe nge-ethylene ne-vinyl acetate copolymer, ngenxa yekhono layo eliphezulu lokubopha kanye nezakhiwo eziyingqayizivele, njengokuthi: ukumelana namanzi, ukwakhiwa nokushisa ukushisa, ngakho-ke, kunezinhlobo eziningi kakhulu zezicelo.

yiphi indima ye-RDPingadlala phakathii-wall putty?

1, thuthukisa ukunamathela kanye nezakhiwo zemishinii-wall putty. Ihlakazeka kabushaIpolymer powder RDP/VAEekuthintaneni namanzi kungahlakazeka ngokushesha ku-emulsion, futhi inezici ezifanayo njenge-emulsion yokuqala, okungukuthi, ukuhwamuka kwamanzi kungakha ifilimu, le filimu inokuguquguquka okukhulu, ukumelana nesimo sezulu esiphezulu nokunamathela okuphezulu ezinhlobonhlobo ze-substrates.

2, ukuthuthukisa ukuhlangana kwei-wall putty, ukumelana okuhle kakhulu kwe-alkali, ukumelana nokugqoka, ukwandisa amandla okuguquguquka.

3, ngcono ukumelana kwamanzi kanye permeability ofi-wall putty.

4, ngcono ukugcinwa kwamanzii-wall putty, ukwandisa isikhathi sokuvula.

5, thuthukisa ukumelana nomthelela futhi uthuthukise ukuqina kwei-wall putty.

In i-wall puttykungabaI-polymer powder ehlakazeka kabushaiyisengezo esibaluleke kakhulu, ngokuvamile, i-putty yangaphakathi yodonga ingangezwa noma cha. Kodwa odongeni lwangaphandlei-wall puttykumele kwengezwe ekuhlakazweni kwei-polymer powder, kungaba ekuhlakazweni kwei-polymer powderusei-wall puttyinokuqina okuhle namandla sekwephuzile, ukuvimbela ukuvela kwempushana sekwephuzile nezinye izinkinga.

Amakhasimende avame ukubuza imibuzo mayelanai-wall putty, njengei-wall puttykulula ukususa impushana, impushana ebucayi, noma amandla mancane nokunye. Bonke bayazii-wall puttybadinga ukwengeza i-cellulose ether, abasebenzisi abaningi abangezi kabusha ezihlakazekayoi-polymer powder. Ngoba izonyusa izindleko zei-wall putty, ngakho-ke ukuze ulondoloze izindleko, amakhasimende amaningi awangezi, yingakho i-putty kulula ukuphothula inkinga yekhwalithi eyinhloko!

I-Celluloseetherikwazi ukumunca umswakama uma inwetshwa ngamanzi. Indima eyinhloko ye-cellulose ukugcina amanzi, kodwa izohamba kancaneI-RDPpowder emva kwesikhathi eside. Lolu hlobo lwe-putty luyaxega, izinga lokumunca amanzi liphezulu, impushana elula, akukho mandla, akukho ukunwebeka. Ukuthuthukisa i-putty ngenhla izinkinga kungalungisa ifomula ye-putty, ukwengeza okufanelekile kwabanye abahlakazekilei-polymer powderukuthuthukisa amandla sekwephuzile wei-wall putty.

I-Putty ohlelweni lokukhiqiza uma ungakwazi ukwengeza ngokwaneleRezihlakazekable i-polymer powder, noma sebenzisa okukhethekile kwe-putty yezinga eliphansii-polymer powder, imuphi umthelelaizoba yi-wall puttyunayo ?

i-wall puttykungaba kuI-polymer powder ehlakazeka kabusha i-RDP/VAEukwengeza kancane, ukusebenza okuqondile kakhulu ungqimba lwe-putty oluxekethile, ufulawa ongaphezulu, izinga eliphansi, kunzima ukwenza ifilimu eliminyene. Lolu donga lujwayele ukuxebuka, lube namabhamuza, luxebuke, luqhekeke nezinye izenzakalo. Uma ophansii-wall puttykukhethiwe, udonga luzokhiqiza amagesi ayingozi, njenge-formaldehyde kanye nokunye ukulimala komzimba womuntu kusobala.

Ngakho-ke, isisekelo sekhwalithi ephezului-wall puttyukukhiqizwa ukukhetha i-hydroxypropyl methyl cellulose enhleI-HPMCfuthi zihlakazeka kabushai-polymer powder RDPnezinye izithasiselo zomkhiqizo ukukhiqiza imikhiqizo eluhlaza.