How healthy is it to melt plastics?
It's completely unhealthy. There are many man-made ingredients in the plastic that become toxic and hazardous to your health. when melting them tint pieces get released into the air and you breathe them in.
there are two types of Plastics. the Thermoset and the Thermoplast. these Plastics all Melt, but @ different temperatures. the Thermoplast melts easily and can be recycled, while the thermoset has a property that makes it difficult to melt @ the temperature of the cooker that is being heated.this therefore explains why the Plastice does not melt because its thermoset Plastic and It has a higher temperature
Types of plastic - polyethylene (HDPE or LDPE) found in plastic bags and shampoo bottles - polystyrene (PS) found in computer cases - polypropylene (PP) found in dishwasher safe containers - polyethylene terephthalate (PET) found in soda bottles - polyvinyl chloride (PVC) More generally speaking in engineering, plastics are divided into thermoplastic plastics and thermoset plastics These are based on their properties upon reheating after the plastic is molded. Thermoplastic plastics when heated will melt…
Silicone is a type of polymer and some silicones are plastics (other silicones are oils, greases, etc.). The main difference between silicone plastics and "ordinary" plastics is that silicones have silicon atoms in some or all of the places where the "ordinary" polymers have carbon atoms. This makes them tougher and more weather resistant than "ordinary" plastics (e.g. silicone rubber will stay flexible at low temperatures which would turn "ordinary" plastic/rubber brittle and silicone plastics…
All plastics are polymers (but not the other way around). There are a zillion different plastics, and a wide range of melting temperatures for them. Some don't melt, but actually suffer decomposition at higher temperatures because their molecular structure won't permit them to melt. Unfortunately, the question is so broad that not much more can be said except to give some examples of common plastics: PVC, polyvinyl chloride, melts at 212 °C (about 414 °F)…
It depends on the plastic. Low-density polyethylene melts at 105 degrees C - just over the temperature of boiling water. At the other end of the scale is a very large category of plastics called "thermosetting." Epoxy, polyester resin, melamine and silicone are thermosetting. Thermosetting plastics don't melt.
Some plastics were not designed to handle or hold very hot liquids. Boiling a liquid in a plastic bowl that might melt or become flimsy could be considered "dangerous". I imagine that there may even be few types of plastic out there that do not react well to microwave radiation and may outgas if heated in such a manner.
There are two types of plastics: thermoplastics and thermosetting polymers. Thermoplastics are the plastics that don't undergo chemical change in their composition when heated and can be moulded again and again; examples are polyethylene, polystyrene, polyvinyl chloride and polytetrafluoroethylene (PTFE). Thermosets can melt and take shape once; after they have solidified, they stay solid.
Biodegradable plastics are plastic materials that degrade through the natural process of living organisms into humus, gas, water or other basic elemental materials. Non-biodegradable plastics are any plastics that either do not break down at all or plastics that require mechanical or chemical breakdown. PLA and oxodegradable plastics are examples of non-biodegradable plastics. PHA and ENSO plastics are examples of biodegradable plastics.