1. Ua kapa ʻia ʻo Sodium naphthalene sulfonate formaldehyde FDN i ka naphthalene based superplasticizer, poly naphthalene sulfonate, sulfonated naphthalene formaldehyde. ʻO kona hiʻohiʻona he pauda ʻulaʻula māmā. Hana ʻia ʻo SNF superplasticizer me ka naphthalene, sulfuric acid, formaldehyde a me ka waihona wai, a hoʻomau i nā ʻano hopena e like me ka sulfonation, hydrolysis, condensation a me neutralization, a laila maloʻo i ka pauka.
2. Naphthalene sulfonate formaldehyde ka mea maʻamau i kapa ʻia he superplasticizer no ka ʻuala, no laila ua kūpono loa ia no ka hoʻomākaukau ʻana i ka paʻa ikaika kiʻekiʻe, hoʻomaʻemaʻe i ka mahu, ka wai ʻawaʻawa, impermeable ʻaʻa ʻole, wai ʻaʻa wai, plasticized kaila, nā pahu kila a me ka prestressed. i hoʻoikaika ʻia. Eia kekahi, hiki ke hoʻohana ʻia ka sodium naphthalene sulfonate formaldehyde ma ke ʻano he dispersant i loko o ka ʻili, textile a me nā ʻoihana wai, a me nā mea ʻē aʻe.