There are a lot of such ambers selling on the street stalls recently. Is it amber? Today, science, please also see friends telling the collectors around you, let them not buy! The name of this toy is [Ma Li San], which is the glue used to fill the gap when mining. The line is called [Dai Xing Piao / Filling Glue], the technical term is called [polyimide resin]. This is a low-viscosity, two-component synthetic polymer that expands when it is pushed by high pressure into a coal rock or concrete crack, filling the gap to prevent leaks. Recently, in the wenwan market, I found that all the cities and towns of the cities and towns have springed up like bamboo shoots and these things are posing as raw amber wax, asking for 2-15 yuan per gram. This chemical factory is a few kilograms a kilogram, and everyone should not be fooled. The more direct identification method is to use ultraviolet light, amber is fluorescent, and Ma Li has not (but recently it has been said that some people have developed a method that can display fluorescence, and specific things have not been seen yet). Some of the outer belts of Ma Li have coal ash. Among the amber rough stones that are currently circulating, only Fushun amber has coal skin, but Fushun amber is small particles, which is expensive, so it is easy to distinguish when there is a large head of light color. Ma Li San is also very hard, not as crisp as amber, and better in impact resistance. It is said that it can bounce off the ground. Beeswax Amber that is opaque or semi-opaque is called beeswax. Beeswax, as a kind of natural material with warm and jade color and bright color, has been deeply loved by the majority of jewellery lovers, but to be honest, the current literary and play market can be described as a mixed bag of fakes. It is impossible to prevent. Next, let's talk about the knowledge about the fake wax, so don't be fooled. 1, aristocratic beeswax It is notorious in the amber industry, it is the replica that makes the most people deceived. The raw material of the nobility beeswax is plastic, which was first created by Taiwanese and was born in the 1980s and is still poisoning consumers who have no recognition ability. It is characterized by bright colors, colorful and colorful. 2, modern plastic imitation Plastics mainly include phenolic resin, casein plastic, safety celluloid, aminoplast, plexiglass, polystyrene and other materials. Early plastics had a distinct flow structure. Recent plastics can be copied from color to sunflower, much like amber. Plastics, although imitation of amber, are very realistic, but the refractive index and density can be distinguished. The density was measured with saturated saline, and only the polystyrene density was 1.05 g/cm3, suspended in saturated saline, most of the plastic was allowed to sink in saturated saline, and the amber was suspended. Plastics have a refractive index between 1.50-1.66, but are rarely similar to 1.54 for amber. When a knife is used to cut an object in an inconspicuous area, the plastic will peel off and the amber will have a small gap. With the hot needle test, the plastic will have various ambiguities, and the amber has a fragrant aroma. When burned, the plastic melts and the amber leaves only a scar. Hard resin is a semi-penetrating resin with a very new geological age. Its composition is similar to that of amber, but it does not contain succinic acid and its volatile content is higher than that of amber. Physical properties are similar to amber, but more susceptible to chemical attack. Test method: Drop a drop of ether on the surface of the hard resin and rub it by hand. The hard resin will soften and stick, and amber does not. Under short-wave UV lamps, hard resins are strong white fluorescent. Contacting the hard resin with a hot needle is easier to melt. It is also possible to encapsulate natural or artificially placed animals and plants in hard resins. 3, bakelite imitation Bakelite's chemical name is phenolic plastic, which is the first plastic to be put into industrial production. This type of imitation is rare and not difficult to identify. 4, high imitation goods These products are very similar to the real products, mostly made by Russian and German technology. If you are not careful, you may be fooled. This female functional fabric sportswear feels good to the touch, absorbs sweat and is breathable. It is a very good sportswear suitable for hyperactive sports: basketball, volleyball, badminton, football, etc. Womens Tennis Clothes,Sporty Wears,Cycling Tops,Cycling Wear YANGZHOU XIANGYU GARMENT CO.,LTD , https://www.yzxygarment.com
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