1. Sodium naphthalene sulfonate formaldehyde FDN e boetse e bitsoa naphthalene e thehiloeng superplasticizer, poly naphthalene sulfonate, sulphonated naphthalene formaldehyde. Ponahalo ea eona ke phofo e sootho e bobebe. SNF superplasticizer e entsoe ka naphthalene, sulfuric acid, formaldehyde le liquid base, 'me e sebetsana le letoto la liketso tse kang sulfonation, hydrolysis, condensation le neutralization, ebe e omisoa ka phofo.
2. Naphthalene sulfonate formaldehyde hangata e bitsoa superplasticizer bakeng sa konkreite, kahoo e loketse ka ho khetheha bakeng sa ho lokisoa ha konkreite e matla haholo, konkreite e phehiloeng ka mouoane, konkreite e nang le mokelikeli, konkreite e sa keneleng metsi, konkreite e sa keneleng metsi, konkreite e entsoeng ka polasetiki, mekoallo ea tšepe le prestressed. konkreite e matlafalitsoeng. Ho phaella moo, sodium naphthalene sulfonate formaldehyde e ka boela ea sebelisoa e le dispersant liindasteri tsa letlalo, masela le dae, joalo-joalo Joaloka moetsi oa setsebi oa superplasticizer ea naphthalene Chaena, Longou e lula e fana ka boleng bo phahameng ba SNF phofo le theko ea fektheri bakeng sa bareki bohle.