The current transfer by the Canadian Authorities to ban Polycarbonate plastic child bottles has stirred up lots of concern over plastic use for foods and drinks. The eye additionally prompted some points over the recycling of plastics.
There are seven classes of plastics, that are denoted by a quantity encased inside a recycling image. The numbers vary from #1 by way of to #7. All have totally different chemical composition that in the end determines their use.
The highlight is on plastic #7 with a PC (polycarbonate) designation beside it. In some circumstances, all that you will note is « PC ». #7 plastic represents the co-mingle of all the opposite varieties of plastics. The addition of PC makes for a light-weight, high-performance plastic that possesses a singular steadiness of toughness, dimensional stability, optical readability, and excessive warmth resistance. For this reason we see it in so many functions together with meals containers and utensils.
The scary factor in a PC container is the addition of Bisphenol A (BPA), which is a key constructing block of polycarbonate plastic. In a meals or drink software container, research have proven the migration of BPA into the meals from the container. The massive controversy is in fact, how a lot of the BPA is entering into the meals and the way a lot do we have now to devour earlier than our hormones get all disrupted?
We’re not going to reply that right here. However lets see how this may impact plastic recycling.
Primarily, there isn’t a change to present plastic container recycling practices. Curbside assortment and any depot will nonetheless acquire #7PC plastics with no questions. The blended plastics will likely be shredded up and made into new #7 plastics, a few of which can have a PC designation if the manufacture provides lots of polycarbonate to the #7 combine.
Only for data functions, the plastics to keep away from for foods and drinks sort actions embody #3, #6 and #7. The safer plastics to make use of are #1, #2, #4, and #5. Nevertheless, there are considerations over reuse of plastic containers and the heating of plastics containing meals.