Hoʻokaʻawale nui ʻia ka pauka puaʻa Ultrafine i nā puaʻa kūlohelohe a me nā puaʻa inorganic, ua māhele nui ʻia nā puaʻa organik i nā puaʻa azo, nā loko loko, nā puaʻa heterocyclic, nā pua ketone mānoanoa, nā puaʻa phthalocyanine a me nā puaʻa ʻē aʻe. Hoʻokaʻawale nui ʻia nā puaʻa inorganic i ka titanium dioxide, carbon black, iron oxide red, etc. Organic a inorganic pigments i nā waihoʻoluʻu ʻālohilohi, ikaika kala kiʻekiʻe, mana kala kiʻekiʻe a me ke aniani kiʻekiʻe, e hoʻokō ana i nā koi o nā uhi a me nā ʻīnika paʻi.
Eia nō naʻe, i ka hoʻomākaukau ʻana i ka pauka puaʻa, ʻoi aku ka maikaʻi o ka nui o ka ʻāpana, e hoʻonui ʻia ka ʻili o ka pauka puaʻa, hiki ke alakaʻi maʻalahi i ka agglomeration, hana i nā ʻāpana nui, pena a me ka ʻōnaehana instability, e pili nui ana i ka maikaʻi o ka huahana.
I kēia manawa, pono ʻia ka dispersant paʻakai ammonium organik e hoʻohui i ke kaʻina hana ʻōpala puaʻa, ka dispersant puaʻa i loko o ka ʻōnaehana paʻi puaʻa, ʻoi aku ka nui o ka adsorb i ka ʻili o ka pauka, e hoʻemi i ka ikehu o nā ʻāpana puaʻa ultrafine, e hoʻokō i ka hopena dispersion like, a hiki i ka dispersant paʻakai ammonium organik ke pale pono i ka flocculation hoʻi i ka lauoho kala e lana ana. Hoʻopili maikaʻi me ka pena a me ka inika paʻi no ka hoʻomaikaʻi ʻana i ka hana kala.
No ke ahaAgena hoopuehu NNOhana?
ʻO kaAgena hoopuehu NNOAia ka mole i kahi hui heleuma a me kahi ʻāpana hoʻopaʻa. ʻO ke kuleana o ka hui heleuma ʻo ia ka hāʻawi ʻana i kahi ikaika hoʻopaʻa paʻa i nā ʻāpana pigment filler. ʻAʻole hāʻule nā molekala dispersant mai ka ʻili o nā ʻāpana, kahi mea e pono ai ka dispersant e hana. ʻO ka hana o ka ʻāpana stabilizing ka hoʻopaʻa ʻana i nā ʻāpana pigment aggregate i hoʻopuehu ʻia e ka mechanical force ma o ka electrostatic repulsion a me spatial resistance i loko o ka wai wai e pale ai i nā ʻāpana mai ka hui ʻana.
I loko o nā mea hoʻoheheʻe organik, i ka wā e hoʻokūpaʻa ai ka ʻāpana paʻa o ka dispersant i nā ʻāpana puaʻa i hoʻopuehu ʻia e ke kūʻokoʻa spatial, i ka wā o ka spacing o kaAgena hoopuehu NNOʻoi aku ka liʻiliʻi o nā ʻāpana ma mua o ka nui o ke kaulahao solvent, ʻoi aku ke kaulahao solvent i kekahi i kekahi a emi iho ka entropy. I loko o ka wai, hana ʻia ka ionization a puni nā pūʻulu ionic e hana i kahi papa pālua, a pale ka electrostatic repulsion i ka hoʻohui ʻana o nā ʻāpana. Inā paʻa ka polyether non-ionized, hoʻopaʻa ka polyether i nā ʻāpana puaʻa i hoʻopuehu ʻia e ka pale ʻana i ka spatial.
Ka manawa hoʻouna: Mei-19-2022