UV-ljus och temperatur anses vara de faktorer som svarar fileör den huvudsakliga nedbrytningen vid utomhusåldring av plast. I likhet med andra plaster bryts PVC ned av solljus. Den fotokemiska nedbrytningen accelereras vid höjd temperatur.
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The polymers are linear and are solid. The monomers are primarily organized head-to-tail, meaning that chloride is found on alternating carbon centres. PVC has mainly an atactic stereochemistry, which means the relative stereochemistry with the chloride centres are random. Some degree of syndiotacticity in the chain presents a couple of per cent crystallinity that may be influential about the Attributes of the material.
سوزاندن، تولید و آزادسازی مقدار زیادی دیاکسین است و اجزای تشکیلدهندهٔ کلرین که محیط زیست را میآلاید.
پلیوینیل کلراید بهطور اتفاقی در دو موقعیت کوچک در قرن ۱۹ کشف شد. نخستین بار در سال ۱۸۳۵ بهوسیله هنری ویکتور رگنالت و در ۱۸۷۲ بهوسیله اوگن بومان.
What's more, it has great electrical insulation Attributes, which makes it a suitable substance for wiring and cable applications.
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Specific Life style choices and wellness ailments may perhaps make a person a lot more more likely to develop premature ventricular contractions (PVCs).
初心者でも簡単、金属加工を個人で依頼する方法！流れと注意点を詳しく解説
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Ideal for customization and if you need it to have an official logo or print on it to match up with the rest of the shade plan or décor of your boat.
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