nūhou

I kēia manawa he nui nā koho o ka poʻe i ka mālama ʻili, ʻoi aku ka nui o nā mea pale lā ma mua o 10 mau ʻano, akā ʻo kekahi mau huahana mālama ʻili e ʻoi aku ka ʻoi aku o ka hōʻeha i ko mākou ʻili. No laila pehea mākou e koho ai i nā huahana mālama ʻili kūpono no ko mākou ʻili? E kamaʻilio e pili ana i ka benzophenone-4, kahi mea nui i nā huahana mālama ʻili.

He aha ka benzophenone-4?

Benzophenone-4he pūhui benzophenone, i kapa ʻia ʻo BP-4, ʻano kemika C14H12O6S. He keʻokeʻo a ʻulaʻula melemele paha ia ma ka lumi wela a hiki ke hoʻopaʻa pono i ke kukui UV o 285 a 325 Im. Ma ke ʻano he mea hoʻoheheʻe ultraviolet ākea ākea, loaʻa ka BP-4 i nā pono o ka helu absorption kiʻekiʻe, non-toxic, non-teratogenic effect, kukui maikaʻi a me ka thermal stability, etc., UV absorber BP-4 hiki ke komo i ka UV-A a me UV-B i ka manawa like, he papa I sunscreen i apono 'ia e ka United States FDA, ka United States a me 'Eulopa 'āina i ka pinepine pinepine o ka hoʻohana 'ana, nui hoʻohana 'ia i ka sunscreen cream a me ka sunscreen cosmetics.

Uv absorbent BP-4ʻAʻohe mea ʻawaʻawa, ʻaʻole hiki ke puhi ʻia, ʻaʻole pahū, maʻalahi e hoʻomoʻi i ka makū i ka lewa, he hana maikaʻi loa ia o ka wai aqueous UV absorbent, hiki ke komo ikaika i ka kukui UV. Hoʻohana nui ʻia ia e like me ka ultraviolet absorber no ka wai a me ka pena poni e pale ai i ka photocatalytic oxidation o ka wai a me ka pena poni; He pale lā maikaʻi ia no nā mea hoʻonaninani a me ka UV absorber e hoʻomaikaʻi i ka pale ʻana i ka wā o nā lole huluhulu.

Hoʻohana nui ʻia ʻo Benzophenone i nā mea o ka hale e like me nā aniani, ka pale ʻai meaʻai, ka holoi lole a me nā huahana hoʻomaʻemaʻe e pale aku i ka hoʻolaha ʻana o UV. Hiki iā ia ke hoʻohaumia i ka wai inu a neʻe mai ka ʻeke meaʻai i ka meaʻai. Hoʻohana ʻia ʻo Benzophenone i loko o kekahi mau ʻīnika hōkeo meaʻai a hiki ke neʻe i ka meaʻai. Loaʻa maoli ka Benzophenone i kekahi mau meaʻai (e like me nā hua waina a me nā hua waina Muscat) a hoʻohui ʻia i nā mea ʻē aʻe ma ke ʻano he mea ʻono.

I nā huahana mālama pilikino, hoʻohana ʻia ka benzophenone ma ke ʻano he mea hoʻonui ʻala a i ʻole e pale i nā huahana e like me nā kopa mai ka nalowale ʻana o ko lākou ʻala a me ke kala ma lalo o ke kukui ultraviolet. Benzophenone derivatives e like me BP2 a me oxybenzone (BP3) a mebenzophenone-4 (BP-4)hoʻohana ʻia i nā sunscreens. Hoʻohana ʻia ʻo Oxybenzone ma ke ʻano he ultraviolet absorber a stabilizer, ʻoi aku hoʻi i nā plastics a me nā pale lā. Hoʻohana pū ʻia ʻo Benzophenone a me ka oxybenzone i ka nail polish a me ka lip balm.

He aha ka benzophenone-4 no ka mālama ʻili?

Loaʻa ka Uv absorbent BP-4 i ka maikaʻi o ka mālamalama maikaʻi a me ka paʻa wela, a hoʻohana nui ʻia i ka sunscreen cream, cream, honey, lotion, oil and other sunscreen cosmetics. He kūpono kūpono no ka sunscreen, lotion, pena, ʻo ke ʻano maʻamau he 0.1-0.5%. ʻO ka dosage maʻamau he 0.2-1.5%.

Uv absorberBP-4hiki ke hoʻoheheʻe ʻia i loko o ka wai, a he waika ka hopena wai, no laila pono e hoʻokaʻawale ʻia i ka wā hoʻohana. ʻO ka Solution PH ʻoi aku ka nui ma mua o 9 e hōʻemi i ka lōʻihi o ka nalu absorption, ʻo ka noi nui o ka sunscreen i kēlā me kēia lā a me nā huahana mālama ʻili ʻē aʻe e pale ai i ka ʻelemakule o ka ʻili ma muli o ke kukui ultraviolet.

He aha ka benzophenone-4 no ka mālama ʻili?