In those years, organosilicon has been "misunderstood" by us (2)


Is organosilicon natural?


Organosilicon does not grow on trees, but in fact, most of the ingredients called "natural" in cosmetics formula do not grow on trees. Most "natural" ingredients are highly processed and refined, resulting in a considerable environmental footprint. "Natural" things are generally considered to be relatively safe, but what is "natural"? At present, there is no corresponding industry standard or agreed definition in the legislation, but there are only disputes about "nature". In fact, "natural" things have their own shortcomings, because the quality of each harvest may affect the subsequent experiments and their commercial value. In contrast, the optimized process of synthesizing organosilicon can make the finished product have high physical and chemical properties, thus making the sustainable high-quality supply possible.


Do organosilicon compounds harm the ozone layer?


CFCs are harmful chemicals to the ozone layer, not organosilicon compounds. Chlorine destroys the formation of ozone in the earth's upper atmosphere, which is where the destructive reactions take place. Most organosilicon products are chlorine free, which means they cannot contribute to this damage.


Can silicone cause smoke?


The chemicals that cause urban smog are volatile organic compounds (VOCs). These compounds include substances such as acetone, ethanol, isopropanol, methacrylate and ethyl acetate; these compounds are put into perfumes, nail polish and hair care products as well as some cleaning formulas. In some places, organosilicon is considered to be inorganic, so it can not be described as smog and VOCs.


But local laws are different. In Europe, according to Council Directive 1999 / 13 / EC of 11 March 1999, low linear siloxanes and cyclones (D4, d5 and D6) are considered organic and, in some cases, VOC.


In the United States, the same product - volatile methyl siloxane (VMS) - is not subject to VOC legislation, because experiments at the University of California show that the decomposition of volatile methyl siloxane (VMS) in the atmosphere does not lead to the formation of ground ozone compared with other organic compounds with similar reactivity.






Original: Sinochem new materials