Not known Facts About pvc
Not known Facts About pvc
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Quite a few ongoing studies have expanded this chemistry, mostly from the chemical changes of this polymeric compound. The chemical modification of PVC utilizing different elements as an active modifying agent is explained in this perform. The latter comprised grafting polymerizations, nucleophilic radicals, substitutions, PVC modifications, and removing or dehydrochlorination. This perspective addresses the key PVC reactivity traits and provides an overview of PVC functionalization even though inspecting the environmental implications of PVC via the prism of chemical recycling. By means of intensive ongoing investigate, this chemistry continues to be expanded, largely from the chemical adjustments of this polymeric substance. To improve its Photograph-balance Qualities, broaden the apps of poly(vinyl chloride) (PVC), and look into PVC-similar phenomena, numerous chemical modifications are already introduced to PVC.
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Not merely does this lessen the cost and quantity of non-recyclable components, but Furthermore, it can help to scale back its bodyweight way too. On account of its temperature resistance together with other benefits, it truly is a common product employed for boat components.
قالب‌گیری به روش تزریقی، اکستروژن و شکل‌دادن حرارتی نیز از روش‌های دیگر هستند.
About half of the planet's PVC manufacturing capability is in China, Regardless of the closure of numerous Chinese PVC vegetation as a consequence of challenges complying with environmental regulations and bad capacities of scale.
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聚氯乙烯可由乙烯、氯和催化劑經取代反應製成。由於其防火耐熱作用，聚氯乙烯被廣泛用於各行各業各式各樣產品：
در مقابل حرارت و نور نسبتاً ناپایدار بوده و هیدروژن کلرید از آن خارج می‌شود. این ماده اثرات زیان‌بخشی روی خواص اشیاء دم دست (اجزای الکتریکی) علاوه بر شباك pvc اثرات فیزیولوژیکی بر جای می‌گذارد. پی‌وی‌سی پلاستیکی سخت است که به‌وسیلهٔ اضافه کردن روان‌کننده‌ها نرم و انعطاف‌پذیر می‌شود. بیشترین مورد استفادهٔ آن فتالیت است.
پیش از قرن بیستم شیمیدان روسی ایوان استرا میسلنسکی و فریتز کلیت از کمپانی گریشم الکترون شیمی آلمان هر دو تلاش کردند تا پی‌وی‌سی را در محصولات تجاری به‌کار گیرند اما مشکلات در فرایند، سختی و گاهی شکنندگی پلیمر تلاش‌های آن‌ها را بی‌نتیجه می‌گذاشت.
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One of many to start with stuff you will detect concerning the maritime PVC board that We have now in stock right here at Boat Outfitters is The point that it truly is amazingly lightweight.
塩ビは安価かつ大量に生産されているエチレンと塩素を原料としており、石油を原料とする他のプラスチック製品と比べて省資源で製造できます。
カレンダー成形は、シートやフィルムなどの平らな製品を成形するのに活用される加工方法です。
Electronics: Owing to its excellent insulation properties, PVC is commonly used in insulation for electrical wires and cables.