Nekuuya kwezhizha, marudzi ese ezvinwiwa mumwaka wekutengesa, vatengi vazhinji vari kubvunza: ndeipi bhodhoro rekunwa rakachengeteka? Makoni ese ane BPA here?
.
Munyori mukuru weInternational Food Packaging Association, nyanzvi yezvekuchengetedzwa kwezvakatipoteredza Dong Jinshi akaudza vatori venhau kuti polycarbonate plastiki ine bisphenol A ine yakachena, isiri nyore kuputsika uye mamwe maitiro. Vagadziri vanoishandisa kugadzira zvinhu zvakasiyana-siyana, zvakadai sematafura epurasitiki, mabhodhoro emvura epurasitiki, mabhodhoro evana, snack cans, nezvimwe. Chikonzero nei bhokisi rekurongedza remagaba esimbi uye maaruminiyamu magaba ane bisphenol A ndechekuti bisphenol A ine yakanaka anti-corrosion mhedzisiro uye inogona kunyatso kudzivirira okisijeni uye tupukanana kupinda mugaba.
.
Dong Jinshi anoyeuchidza, parizvino ine bisphenol A kwete chete aluminium inogona cola, ine iron can,aluminium inogona kurongedzayehupfumi husere poruel, michero yemumagaba uye zvichingodaro zvakare ine bisphenol A. Zvisinei, Dong Jinshi akaratidzawo kuti izvi hazvirevi kuti magaba ose ane BPA, mamwe makeni ari iye zvino akagadzirwa nepurasitiki, chero bedzi asina kugadzirwa nePC. mapurasitiki, haana BPA.

Nhanganyaya kuChemistry
.
Bisphenol A, iro zita resainzi re2, 2-di (4-hydroxyphenyl) propane, yakakosha organic makemikari mbishi zvinhu, phenol uye acetone zvakakosha zvinobva kune bisphenol A molecular space filling model organism, inonyanya kushandiswa mukugadzira polycarbonate, epoxy. resin, polysulfone resin, polyphenyl ether resin, unsaturated polyester resin uye zvimwe zvinhu zvepolymer. Inogona zvakare kushandiswa mukugadzira plasticizer, flame retardant, antioxidant, heat stabilizer, rubber antioxidant, pesticide, pendi uye zvimwe zvakanaka makemikari zvigadzirwa.
.
Iyo data inoratidza kuti bisphenol A ikemikari yakaderera ine muchetura. Ongororo dzemhuka dzakaona kuti bisphenol A ine mhedzisiro yekutevedzera estrogen, kunyangwe iyo dosi yakadzikira, inogona kuita kuti mhuka iburitse kukurumidza kwevakadzi, kuderera kwesperm, kukura kweprostate uye zvimwe zvinokonzeresa. Mukuwedzera, zvakaratidzwa kuti bisphenol A ine imwe embryonic toxicity uye teratogenicity, iyo inogona kuwedzera zvakanyanya kuitika kwekenza ye ovarian, kenza yeprostate, leukemia uye mamwe kenza mumhuka.

Nzira yekusarudza zvisiri-bisphenol A zvinwiwa zvemakani
.
Musika webisphenol A hauna kupera, uye njodzi dzinogona kuitika dzebisphenol A dzinogona kunge dziripo. Saka, ndeipi yekurongedza ndiyo yakachengeteka zvakanyanya pamusika? Nzira yekuziva sei zvigadzirwa zvepurasitiki zvine bisphenol A?
.
Paunosarudza chinwiwa chemukani, zvinonyanya kukosha kuverenga nhamba muchiratidzo chetatu pazasi pebhodhoro repurasitiki. Nokuti nhamba imwe neimwe inomiririra zvinhu zvepurasitiki, zvinhu zvakasiyana-siyana, kushanda kwakasiyana, kushandiswa kwakachengeteka mamiriro akasiyana zvakare.
.
Zvinoenderana nechiyero chenyika, "1" inomiririra PET (polyethylene terephthalate), iyo inowanzo shandiswa mumabhodhoro emvura yemamineral uye mabhodhoro echinwiwa checarbonated. Kupisa kusingapindi 70 ℃, yakakodzera chete yekunwa tembiricha yemukamuri kana zvinwiwa zvakaomeswa, tembiricha yakakwira iri nyore kushandura, kushandiswa kwenguva refu kunodzokororwa kunogona kuburitsa magasi anokuvadza; “3″ inomiririra PVC(7810,15.00,0.19%) (polyvinyl chloride), isingashandiswe mukurongedza chikafu; “4″ inomiririra LDPE (yakaderera density polyethylene), inoshandiswa kugadzira firimu rekudya, firimu repurasitiki, zvichingodaro, kana rasangana ne110 ℃, pachave nekunyunguduka kunopisa, saka usati washandisa microwave oveni, iva nechokwadi chekubvisa chikafu chekudya. chekutanga; “5″ inomirira PP(polypropylene), iyo inoshandiswa muma microwave lunch box uye inogona kudziirwa; “6″ inomirira PS(polystyrene), inoshandiswa kugadzira ndiro dzemabhokisi e<em>noodle pakarepo uye mabhokisi ezvokudya zvinokurumidza, asi haigoni kudziyiswa muovheni yemicrowave, uyewo haigoni kushandiswa kurodha zvinhu zvine asidhi yakasimba uye alkaline; Iyo "7" inomirira polycarbonate (PC) nedzimwe mhando, izvo zvinoreva kuti kana nhamba iri mugonyo iri 7, inofanira kunge iine BPA.

Isu tirialuminium inogonakugadzirwa kunze kwenyika kweanopfuura makore gumi nemashanu, makore mazhinji ealuminium anogona kugadzira ruzivo, isu tinoteerera kuchengetedzwa kwechikafu, nekuti aruminiyamu inogona kupfeka, kushandiswa kwese kwemukati coating zvinhu zvinoenderana nemitemo yenyika, kuve nechokwadi chekuchengetedza, nekuwedzera, isu zvakare. gadziraBPA yemahara aluminium inogona, gamuchirai vatengi vanobva kunyika dzese kuti vauye kuzobvunza