The Ultimate Guide To pvc
The Ultimate Guide To 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。
On the other hand, PVC is recyclable beneath particular conditions. It might be mechanically recycled by grinding it into modest pieces, which happen to be then melted and remolded. Sometimes, PVC can even be chemically recycled, breaking it down into its constituent monomers for reuse.
Its most frequent use is in the construction sector, but it is also accustomed to manufacture signals, in healthcare programs, and for a fiber for apparel.
The contents from the response vessel are pressurized and frequently mixed to keep up the suspension and assure a uniform particle sizing of the PVC resin. The reaction is exothermic and so requires cooling. As the quantity is reduced throughout the reaction (PVC is denser than VCM), h2o is continually additional on the combination to take care of the suspension.[nine]
The molecular construction of PVC consists of an extended-chain polymer with repeating vinyl chloride models. Every single vinyl chloride unit incorporates a single carbon atom double-bonded to some chlorine atom and solitary-bonded to two hydrogen atoms.
Additionally, it has superior electrical insulation Homes, making it an acceptable content for wiring and cable purposes.
PVC is created from petroleum. The manufacturing process also employs sodium chloride. Recycled PVC is damaged down into powder or tiny chips Along with the impurities removed.
Selected lifestyle options and wellbeing disorders may possibly make anyone a lot more very likely to develop premature ventricular contractions (PVCs).
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ディッピング加工は、ペンチなどの取っ手を保護するカバーのように、皮膜を形成する際に活用されている加工方法です。
حتی با وجود این‌که پی‌وی‌سی اسباب‌بازی‌های نرم برای نوزادان برای سال‌ها ساخته شده‌است، این نگرانی وجود دارد که این افزودنی‌ها از اسباب‌بازی‌های نرم به دهان کودکانی که آن را به دهان می‌برند نشت کند.
・価格が安価：他の材質に比べて価格が安価。重量も重たくないので、運送費や管理費なども抑えられる。