He aha te tukanga whakaputa o te bisphenol A?
Te Whakataurite i ngā Hangarau o te Tikanga Resin me te Tikanga Hauwai Hauota
(1) Ngā painga o te tukanga tikanga kapia mō te bisphenol A bpa① Kāore e hiahiatia he taputapu utu nui ātete-waikura, ā, he iti te haumitanga ki ngā taputapu; ② He iti ake te wai para e puta mai ana; ③ Kāore e hiahiatia te kohikohi me te hangarua i te whakakorikori.
(2) Ngā painga o te tukanga tikanga hauwai kōraira mō te bisphenol A bpa: ① He nui te mahi a te kaiwhakakōkī, he iti te pāmahana tauhohenga, ā, he iti noa ngā poke e puta mai ana; ② He teitei te tere tahuritanga rauemi mata; ③ Kāore e hiahiatia te hangarua i te acetone kāore i tauhohenga; ④ Ko te nui o te tohanga phenol ki roto i te tauhohenga te iti rawa (kāore te moenga i āraia), ā, kāore ngā isomers ortho me para i roto i te tauhohenga e tioata; ⑤ Kāore e hiahiatia he tioata anō, ka whakaiti i ngā utu haumitanga me ngā whakapaunga whakahaere; ⑥ He iti te nui o ngā hua taha e puta mai ana i te tauhohenga, ā, kāore e hiahiatia he taputapu tahuritanga wāhanga taumaha.
I te arotahi ki ngā painga o te mahi whakakorikori me te whiriwhiringa o te tikanga hauwai pūhaumāota, kua whakapai ake te tikanga kapia whakawhiti-katote i te whakakorikori, ā, ka mahia te tauhohenga whakapūngao i te ōwehenga phenol-ketone nui. He matū tauhohenga, he whakarewa tauhohenga hoki te Phenol, e whakapai ake ana i te whiriwhiringa o te tauhohenga whakapūngao. Ka taea te wehewehe i ngā poke i roto i te hua tauhohenga whakapūngao mā te tukanga whakatioata hei whiwhi hua bisphenol A bpa kounga teitei. Mō te maha o ngā taputapu, he rite te tikanga kapia ki te tikanga hauwai pūhaumāota. I taua wā anō, kua whakarerekētia e te tukanga tikanga kapia whakawhiti-katote ngā ngoikoretanga o te tukanga tikanga hauwai pūhaumāota, he ngoikore ake te waikura ki ngā taputapu, ā, kua whakapai ake i te pono o te whakahaere pūnaha me te kore e piki ake ngā utu haumi. Nō reira, kua riro te tikanga kapia whakawhiti-katote mō te whakaputa bisphenol A bpa hei huarahi hangarau me te whanaketanga matua.