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Is a plastics becoming brittle after being left in the sun a exothermic or endothermic?
Wiki User
∙ 13y ago
Wiki User
∙ 13y ago
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Is plastics becoming brittle after being left in the sun endothermic or exothermic?
endothermic glad to see you're doing your homework (:
When a plastic bottle turns brittle when being left out in the sun is this reaction endothermic or exothermic?
endothermic
Does plastic have brittleness?
Plastics can be designed to be very brittle or very tough and flexible. Polymethyl methacrylate is quite brittle for example.
What are the different ways of improving impact strength for brittle plastics?
tape it, glue it or staple it
What does protein do for your bones?
keeps them strong, and prevents them from becoming brittle
Why does wire insulation get hard and break?
The polymers in the plastic insulation oxidize over time and deteriorate, becoming brittle. Teflon and other modern plastics used for insulation are far more resistant to this process and will last many decades without becoming brittle compared to earlier plastics used before, especially natural rubber (which could become brittle in only a couple of years).
Why is tempering applied on quenched steels?
to reduce hardness to prevent the material from becoming brittle
Can you break plastic?
There are many types of plastic. Brittle plastic can be broken, and softer plastics can usually be cut with scissors or a saw or sharp knife.
Why do plastics such as PVC become brittle with age?
PVC is kind of brittle to start with, though it becomes more brittle with age if exposed to sunlight, because UV rays break some of the bonds in the molecules. "Vinyl" (flexible PVC) is flexible because it has additional compounds called "plasticizers" added to it. Over time, these can leach out, again leading to a more rigid and brittle material.
Are non-metals brittle?
yes,nonmetals are brittle and cannot be rolled into wires or pounded into sheets +++ Not at all. Synthetic plastics are non-metals, and while some are indeed brittle others are, well, plastic by the true definition of that term! Clay is a natural plastic, and not considered a metal although the clay-forming minerals include complex compounds of metals. Wood is not metallic - but that's not brittle unless dried completely.
Can you put acrylic in the freezer?
Acrylic is the word for any of a number of plastics. Probably the most widely-known acrylic is Plexiglas. You can put them in the freezer if you like, but they will be more brittle when cold.
Is plastic shatterproof?
There are many kinds of plastic. Some are rigid, or flexible. Some plastics become brittle if frozen and may shatter if dropped, or be damaged by long exposure to sunlight losing their colour. Some plastics, such as used in shatterproof rulers, are flexible enough to withstand being bent by schoolchildren.
