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(1) Aging Under the conditions of use of light, heat and atmosphere, the composition and structure of polymers in plastic bottles change. As a result, the plastic bottle loses its elasticity, becomes hard, becomes brittle, cracks, or becomes soft, sticky, and appears peristaltic. This phenomenon is called aging.
(2) Chemical stability Most plastic bottles have high chemical stability against the effects of acids, alkalis, salts, and steam. However, some plastic bottles may dissolve or swell in organic solvents and should be used with caution.
(3) Flammable plastic bottles are flammable materials and should be used with care.
(4) Toxicity generally speaking. Almost all liquid state polymers have varying degrees of toxicity. The cured polymer is different, mostly non-toxic. |
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