Traditional Culture Encyclopedia - Traditional virtues - Chemical Materials in Middle School Chemistry
Chemical Materials in Middle School Chemistry
Synthetic materials are man-made materials, artificially processed from different substances by chemical methods or polymerization of materials, their qualities and raw materials are different, such as plastics, glass, iron and steel
Organic materials: also known as organic polymers, generally composed of C, H, O, and other elements of relative molecular mass is generally Reach more than 10W (of course, there are other elements, like S and so on)
Generally speaking, with solubility (divided into dissolution and swelling of two kinds), thermoplasticity (high temperature into a sticky kind) and thermosetting (seems to say that the low temperature and back to a solid state), strength characteristics (more than the general strength of carbon or steel and other materials made of it is about twice as strong), electrical insulation (on the vegetative insulation la)
General organic materials: also known as organic polymer materials, generally composed of C, H, O and other elements of the relative molecular mass is generally 10W above (there are other elements, like S and the like)
General organic materials are rubber, cellulose, proteins, starch, polymers, etc.
Inorganic materials: inorganic materials: elements such as Fe, C, and other elements alone or mixed with other substances made of the material ah, the overall m organic materials so good (except for special purposes), but it is easy to recycle and reuse
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