logo
logo
Sign in

When people think of resins, they think of amber

avatar
zhangkai
When people think of resins, they think of amber

When people think of resins, they think of amber, and the sticky stuff they usually see on trees. But resin isn't simple, and it's not just secreted from trees. In broad sense, resin usually refers to the softening or melting range after being heated, softening has a tendency to flow under the action of external forces, at room temperature is solid, semi-solid, and sometimes can be liquid organic polymer. The present stage of resin is divided into two kinds, one is natural resin, one is synthetic resin. Natural resin is a kind of tissue fluid secreted by plants to solidify and protect wounds when they undergo trauma, just like human skin will shed pus after it is broken. Not all trees can secrete resin, only 10% of trees can secrete resin, especially pine, cypress and yew and other gymnosperms are mostly in the plant body, resin is a very mobile liquid, after contact with the air part of the volatilization into the air, the other part is solidified as a solid. In India, Malaysia and Yunnan in China, insects called shellac beetles metabolize the gelatinous substance on plant branches and call it resin. Because of the low production of natural resin, it will be particularly valuable. We see amber, is resin after thousands of years of treasure, treasure can not be found. Synthetic resin refers to a high molecular weight polymer whose chemical and physical properties are very similar to natural resin synthesized under artificial factors. It is completely different from natural resin, but it is also called resin. Today we see household knickknacks, paint, plastic and so on are made of artificial resin. In recent years, appeared large quantities of colophony household, you can see ocean inside, see starry sky, have all sorts of dazzling colour and decorative pattern. Are made of synthetic "epoxy resin". If the natural resin is noble gorgeous beauty, then synthetic resin is more like a steady housewife at home. One is more ornamental, while the other is more practical. Nowadays, polyethylene (PE), polyvinyl chloride (PVC), polystyrene (PS), polypropylene (PP) and ABS resins are the five universal resins, which are the most widely used synthetic resin materials. In general, natural resin is more difficult to obtain, of course, more precious, and relatively rare in ordinary life. Our daily contact with the resin is basically synthetic resin, at the present stage, synthetic resin technology is becoming more and more mature, also widely welcomed by the public.

https://www.timerglass.com/

collect
0
avatar
zhangkai
guide
Zupyak is the world’s largest content marketing community, with over 400 000 members and 3 million articles. Explore and get your content discovered.
Read more