ʻO Ultraviolet absorber kahi ʻano stabilizer māmā, hiki ke hoʻomoʻi i ka ʻāpana ultraviolet o ka lā a me ke kumu kukui fluorescent me ka ʻole e hoʻololi iā ia iho.
Ma muli o ka nui o nā kukui ultraviolet i loko o nā kukuna o ka lā i mea pōʻino i nā mea kala, ʻo ka hawewe ma kahi o 290-460 nanometers. ʻO kēia mau kukui ultraviolet pōʻino ma o ka hopena redox kemika (Redox reaction), e hoʻoheheʻe a mae nā molekala kala.
Aia nā ʻano hana kino a me ke kemika e pale aku ai i nā kukui ultraviolet ʻino mai nā kala ʻino.
Eia kahi hoʻolauna pōkole wale nō i nā ʻano kemika, ʻo ia hoʻi, ka hoʻohana ʻana i nā mea hoʻoheheʻe ultraviolet e pale pono a hoʻonāwaliwali paha i ka pōʻino o ke kala o ka mea i pale ʻia.
Pono e loaʻa i nā mea hoʻoheheʻe UV kēia mau kūlana
①Hiki iā ia ke komo ikaika i nā kukuna ultraviolet (ʻoi aku ka lōʻihi o ka nalu he 290-400nm); ② ʻO ke kūpaʻa wela maikaʻi, ʻaʻole ia e loli ma muli o ka wela i ka wā o ka hana ʻana, a liʻiliʻi ka volatility thermal; ③Ke kūpaʻa kemika maikaʻi, ʻaʻole kūpono me nā mea i loko o ka huahana Loaʻa nā hopena ʻino i nā ʻāpana; ④Miscibility maikaʻi, hiki ke hoʻopuehu ʻia i loko o ka mea, me ka ʻole o ka pua a i ʻole exudation; ⑤ ʻO ka absorber ponoʻī he paʻa photochemical maikaʻi, ʻaʻole decompose, ʻaʻole hoʻololi i ke kala; ⑥ʻAʻole kala, ʻaʻohe mea ʻawaʻawa, ʻaʻala ʻole; ⑦ kū'ē i ka holoi holoi; ⑧ maʻalahi a maʻalahi ke loaʻa; 9. hiki ʻole ke hoʻoheheʻe ʻia i ka wai.
Hiki ke hoʻokaʻawale ʻia nā mea hoʻoheheʻe UV i nā ʻāpana aʻe e like me kā lākou hana kemika: salicylate, benzophenone, benzotriazole, acrylonitrile i hoʻololi ʻia, triazine a me nā amine i hoʻopaʻa ʻia.
