The Single Best Strategy To Use For pvc
The Single Best Strategy To Use For pvc
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همچنین محصولات فرعی وجود دارد که پروفیل‌های اکسترود شده بر پایهٔ پلی‌وینیل کلراید سخت (یو پی‌وی‌سی) با مقاومت ضربهٔ بالا و سطح خارجی سفید هستند و در ساخت در و پنجره‌هایی که در دیوارهٔ خارجی ساختمان به‌کار می‌روند، استفاده می‌گردند.
押出成形は、押出機のなかに溶融した原料を入れ、口金から押し出して成形する加工方法です。
Having said that, PVC is recyclable underneath selected problems. It may be mechanically recycled by grinding it into tiny pieces, which can be then melted and remolded. In some instances, PVC may also be chemically recycled, breaking it down into its constituent monomers for reuse.
قالب‌گیری به روش تزریقی، اکستروژن و شکل‌دادن حرارتی نیز از روش‌های دیگر هستند.
سوزاندن، تولید و آزادسازی مقدار زیادی دی‌اکسین است و اجزای تشکیل‌دهندهٔ کلرین که محیط زیست را می‌آلاید.
The molecular composition of PVC is made of a protracted-chain polymer with repeating vinyl chloride units. Every vinyl chloride unit incorporates one carbon atom double-bonded to the chlorine atom and one-bonded to 2 hydrogen atoms.
PVC features a list of exceptional Houses that lead to its big selection of programs. One of the primary attributes is its durability and resistance to environmental stressors for instance humidity, chemical compounds, and ultraviolet radiation.
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دستگاه‌های فرم دادن: شامل یک یا چند پیچ مته‌ای گردان است.
Together with its structural Advantages, expanded PVC also provides excellent thermal conductivity Advantages. A thing you might like to consider if you propose on making use of it for seating or simply bedding as part of your boat, because it might help to insulate and keep warmth.
In a standard heart سعر شبابيك pvc rhythm, a tiny cluster of cells with the sinus node sends out an electrical signal. The sign then travels with the atria into the atrioventricular (AV) node and to the ventricles, causing them to deal and pump blood.
比較的小さな分子であるモノマーが、繰り返し結合したものをポリマーと呼びますが、この繰り返し結合した度合いのことを「重合度」と呼びます。
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