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观察矿泉水瓶,底部有一个三角形的图案,三角形内有数字,这是什么意思呢?除了矿泉水瓶,日常生活中的各种塑料制品上也都有这样的标记。这个数字非常有用,它是为了标明塑料制品的材质种类。不同化学物质制成的塑料制品有不同的使用方法,一些使用禁忌和我们的健康息息相关。“01”——PET材料(聚对苯二甲酸乙二酯):这种材料耐热至70℃,只适合装暖饮或冻饮,倒人高温液体或加热,容易变形,溶出对人体有害的物质。这种材质做成的矿泉水瓶、碳
Observation of mineral water bottles, the bottom of a triangular pattern, the number of triangles, what does this mean? In addition to mineral water bottles, daily life of all kinds of plastic products also have such a mark. This figure is very useful, it is to indicate the type of plastic materials. Different chemicals made of plastic products have different methods of use, some taboo and our health are closely related. “01 ” - PET Material (Polyethylene Terephthalate): This material is resistant to heat up to 70 ° C and is suitable only for warm or cold drinks. Human harmful substances. This material made of mineral water bottles, carbon