huahana

Nā huaʻōlelo like ma ka ʻōlelo Pelekania

antioxidant

ʻano kemika

ʻO ka Ultraviolet absorber kahi ʻano stabilizer māmā, hiki ke komo i ka lā a me ke kumu kukui fluorescent i ka ʻāpana ultraviolet, akā ʻaʻole ia e loli.
Ma muli o ka nui o nā kukui ultraviolet i loko o nā kukuna o ka lā e pōʻino i nā mea kala, ʻo kona lōʻihi hawewe ma kahi o 290-460 nanometer, kēia mau kukui ultraviolet ʻino ma o ke kemika Redox reaction, pau nā molekala kala i decompose a mae.
Aia nā ala kino a me nā ʻano kemika e pale ai i ka pōʻino kala mai ke kukui UV ʻino.
Eia kahi hoʻolauna pōkole i ke ʻano kemika, ʻo ia hoʻi, ka hoʻohana ʻana i nā UV absorbers no ka pale ʻana i ka mea e pale pono ai, a i ʻole e hoʻonāwaliwali i kona luku ʻana i ke kala.
Pono e loaʻa i nā mea hoʻoheheʻe Uv nā kūlana penei
(1) hiki ke komo ikaika i ke kukui ultraviolet (ʻoi aku ka lōʻihi o ka nalu o 290-400nm);(2) ʻO ke kūpaʻa wela maikaʻi, ʻoiai i ka hana ʻana ʻaʻole e loli ma muli o ka wela, liʻiliʻi ka volatility wela;ʻO ke kūpaʻa kemika maikaʻi, ʻaʻohe hopena ʻino me nā mea waiwai i loko o ka huahana;(4) Ka miscibility maikaʻi, hiki ke hoʻopuehu like i loko o ka mea, ʻaʻohe hau, ʻaʻohe exudation;(5) He maikaʻi ke kūpaʻa photochemical o ka absorbent ponoʻī, ʻaʻole decompose, ʻaʻole hoʻololi i ke kala;⑥ ʻAʻohe kala, ʻaʻohe mea ʻawaʻawa, ʻaʻala ʻole;⑦ kū'ē i ka holoi immersion;⑧ Maikaʻi a maʻalahi ke loaʻa;9. ʻAʻole hiki ke hoʻoheheʻe ʻia i ka wai.
Hiki ke hoʻokaʻawale ʻia ka UV absorbers i loko o nā pūʻulu e like me kā lākou hana kemika: salicylate esters, phenylketones, benzotriazoles, acrylonitrile i hoʻololi ʻia, triazines a me nā amine i hoʻopaʻa ʻia.

Hoʻokomo huahana a me nā hiʻohiʻona

ʻO ka Ultraviolet absorbent ka mea i hoʻohana nui ʻia i hoʻokahi ʻano o ka stabilizer māmā, e like me kona ʻano hiki ke hoʻokaʻawale ʻia i salicylate esters, benzophenone, benzotriazole, acrylonitrile i hoʻololi ʻia, triazines, etc., ka noi ʻoihana o ka benzophenone a me benzotriazole.ʻO ka quencher ka nui o ka metala paʻakikī, e like me ka divalent nickel complex, pinepine a me ka ultraviolet absorbent a, ka hopena synergistic, ultraviolet absorbent he ʻano o ka stabilizer māmā, hiki ke hoʻopaʻa i ka lā a me ke kumu kukui fluorescent i ka ʻāpana ultraviolet, a ʻaʻole ia e loli.
Ma muli o ka nui o nā kukui ultraviolet i loko o nā kukuna o ka lā e pōʻino i nā mea kala, ʻo kona lōʻihi hawewe ma kahi o 290-460 nanometer, kēia mau kukui ultraviolet ʻino ma o ke kemika Redox reaction, pau nā molekala kala i decompose a mae.
Aia nā ala kino a me nā ʻano kemika e pale ai i ka pōʻino kala mai ke kukui UV ʻino.
Eia kahi hoʻolauna pōkole i ke ʻano kemika, ʻo ia hoʻi, ka hoʻohana ʻana i nā UV absorbers e pale i ka mea e pale pono ai, a i ʻole e hoʻonāwaliwali i kona luku ʻana i ke kala.

hoʻohana

Hiki iā ia ke komo pono i ke kukui ultraviolet me ka nalu o 270-380 nm, i hoʻohana nui ʻia no ka polyvinyl chloride, polystyrene, unsaturated resin, polycarbonate, polymethyl methacrylate, polyethylene, ABS resin, epoxy resin a me cellulose resin, etc. He kūpono ia no nā mea photosensitive. e like me ke kala kiʻiʻoniʻoni, kala kiʻiʻoniʻoni, ka pepa kala a me ka polymer, a me nā mea ʻē aʻe.No ka absorption ikaika, hana kiʻekiʻe ultraviolet absorber

pūʻolo a me ka lawe ʻana

B. Hiki ke hoʻohana ʻia kēia huahana, 25KG, BAERRLS.
C. E kūʻai i sila ma kahi anuanu, maloʻo a me ka makani i loko o ka hale.Pono e hoʻopaʻa paʻa ʻia nā pahu ma hope o kēlā me kēia hoʻohana ma mua o ka hoʻohana ʻana.
D. Pono e hoʻopaʻa maikaʻi ʻia kēia huahana i ka wā o ka lawe ʻana i mea e pale ai i ka makū, ka alkali ikaika a me ka waikawa, ka ua a me nā mea haumia ʻē aʻe mai ka hui ʻana.