The Basic Principles Of pvc
The Basic Principles Of pvc
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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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Nonetheless, PVC is recyclable under sure conditions. It might be mechanically recycled by grinding it into modest pieces, which happen to be then melted and remolded. Sometimes, PVC will also be chemically recycled, breaking it down into its constituent monomers for reuse.
Its most typical use is in the construction field, but it is also used to manufacture signals, in healthcare purposes, and as a fiber for clothes.
The contents on the reaction vessel are pressurized and constantly combined to maintain the suspension and make sure a uniform particle sizing in the PVC resin. The reaction is exothermic and therefore needs cooling. As the amount is reduced during the reaction (PVC is denser than VCM), h2o is continually added to your mixture to keep up the suspension.[9]
【専門家が解説】レーザー加工でチェッカープレート(縞板)の表面に扱い傷がつく理由
型のなかにある空気を吸い取り、大気圧で型に押し付ける手法を「真空成形」、大気圧ではなく圧縮空気で金型に押し付ける手法を「圧空成形」と呼びます。
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 اثرات فیزیولوژیکی بر جای می‌گذارد. پی‌وی‌سی پلاستیکی سخت است که به‌وسیلهٔ اضافه کردن روان‌کننده‌ها نرم و انعطاف‌پذیر می‌شود. بیشترین مورد استفادهٔ آن فتالیت است.
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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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همچنین ماده‌ایست که اغلب برای لوله‌کشی آب و فاضلاب به علت ارزان بودن شباك pvc طبیعی و انعطاف‌پذیر بودن استفاده می‌شود.
Packaging: PVC’s versatility and resistance to oil and grease ensure it is a wonderful option for meals packaging.
Electronics: Owing to its exceptional insulation Houses, PVC is often Utilized in insulation for electrical wires and cables.