I-Aldehyde Scavenger — Iikhemikhali ezisekelwe kwiikhompawundi ze-polyamine ezisebenzayo

I-Formaldehyde (HCHO) yi-compound ye-organic engenambala, enokurhawuzelela kakhulu (VOC) eyigesi kubushushu begumbi kwaye inyibilika lula emanzini. Yinto ebalulekileyo kwimveliso emininzi yemizi-mveliso kunye neenkqubo ze-metabolic zebhayoloji, esetyenziswa kakhulu kwezi ndawo zilandelayo: ii-resin zokwenziwa (ezifana ne-urea formaldehyde resins, i-phenolic resins), izincamathelisi, iiplastiki, ii-arhente zokugqiba ilaphu, njl.njl.

I-Formaldehyde ihlelwa njenge-Group 1 carcinogen (ngokucacileyo ibangela umhlaza ebantwini) yi-World Health Organisation (WHO) kunye ne-International Agency for Research on Cancer (IARC), kwaye iingozi zayo zibonakala kakhulu ku:
①Ukuvezwa kwexesha elifutshane:
Ukucaphuka: Ukudibana ngqo kunokubangela ukubomvu nokudumba kwamehlo, ukutsha emqaleni, ukunganyamezelani nolusu, njl.
Iimpawu zokuphefumla: ezikhokelela ekukhwehleleni, ekuqineni kwesifuba, ekwandeni kwesifo sesifuba, njl.
②Ukuvezwa ixesha elide:
Umngcipheko womhlaza: Ukuphefumla i-formaldehyde ixesha elide kunokubangela umhlaza ekhaleni, i-leukemia, njl.
Ubuthi obungapheliyo: bonakalisa inkqubo yomzimba yokuzikhusela, inkqubo yemithambo-luvo, kwaye buyingozi kakhulu kubafazi abakhulelweyo, abantwana, kunye nabantu abadala.

I-Aldehyde Scavenger yethu isetyenziselwa ukususa i-formaldehyde eseleyo kunye ne-acetaldehyde kwiipolymers,ifanelekile ngakumbi ekususeni i-acetaldehyde kwi-PET ukuze ihlangabezane neemfuno zokupakishwa kokutya neziseloIkwafanelekile ukususa i-formaldehyde kunye ne-acetaldehyde kwii-acetate resins, izincamathelisi, kunye neengubo zepeyinti.

I-PET (i-polyethylene terephthalate) yinto esetyenziswa kakhulu kwiibhotile zesiselo. Ngokwethiyori, i-PET ecocekileyo ngokwayo ayinayo i-formaldehyde, kodwa ezi zinto zilandelayo zinokubangela ukuba ibe ne-trace addity ye-formaldehyde:
① I-PET inokubola kancinci ngexesha lokucubungula ngobushushu obuphezulu (njengokunyibilika kwe-melt), ivelise izixa ezincinci ze-formaldehyde.
② Ii-catalysts zesinyithi ezisetyenziswa ekuvelisweni kwe-PET, ezifana nee-antimony compounds, zinokukhuthaza iziphumo ebezingalindelekanga kwaye zivelise i-formaldehyde.
③ Ezinye izinto ezifaka imibala okanye izixhobo zokucubungula zinokubola zikhuphe i-formaldehyde xa kushushu kakhulu okanye xa kukhanya.

Qhagamshelana nathi! Siza kuphendula zingadlulanga iiyure ezingama-48.