何本もある加熱したロールに、原料を通して圧延したあと、冷却ロールに通して厚みを調整し、材料を巻き取ることで、シートやフィルム状の塩ビを成形します。
مخلوط‌کن‌های پودری: مخلوط کردن مواد مختلف توسط این مخلوط‌کننده‌ها انجام می‌گیرد. البته باید توجه کرد که در مخلوط کردن پایدارکننده‌ها، روان‌کننده‌ها، پیگمنت‌ها و… که باید مقدار آن‌ها نسبتاً کم باشد امکان ایجاد اشکالات عملی وجود دارد.
However, PVC is recyclable below selected ailments. It can be mechanically recycled by grinding it into modest items, which might be then melted and remolded. Occasionally, PVC can even be chemically recycled, breaking it down into its constituent monomers for reuse.
مشکلات بهداشتی پلاستیک و ترکیب پلی‌هالوژنه (پی‌اچ‌سی)
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.
Whilst you will find specific apps, we wouldn't suggest an expanded PVC sheet, it remains considerably stronger and even more long lasting than other identical plastic products. For example, it's going to give a few years of use when mounted being an upholstery foundation or a seat back panel.
This causes it to be very simple to take care of and do the job with. So, although You're not the strongest specific, you won’t discover it too hard to move it all-around when creating improvements on the boat.
Adaptable PVC is often Employed in construction as insulation on electrical wires or in flooring for houses, hospitals, educational institutions, and other places exactly where a sterile سعر شبابيك pvc setting is essential. Rigid PVC is also Utilized in development as pipe for plumbing and siding that is usually known as
Co-stabilisatorer Synergistiska med andra stabilisatorer och kan vara polyoler, organiska fosfiter, epoxiestrar eller epoxiderade oljor
Expanded PVC board is commonly employed for upholstery bases on boats, supplying longevity, waterproofing, and simplicity of manipulation with normal woodworking tools. It is also well known for crafting customized signals and outside decor due to its flexibility in shape and dimensions. Study Additional Upholstery Bases
Poly(vinyl chloride) (PVC) is an interesting issue for polymer science investigate. Its characteristics are heightened by its inherent structural faults ensuing from immediate producing (by no cost-radical polymerization), which also cause its thermal instability. Some of the fundamental restricting options of PVC are actually prompt to be alleviated by enhanced chemistry all through PVC synthesis, Besides using equally inorganic and organic and natural thermal stabilizers. The attributes, characterization, modification, recycling, and a variety of programs of PVC are all examined On this paper together with the previous and most up-to-date analysis discoveries. It has been recommended that some of the elemental restricting Homes of PVC could be lessened by applying both of those inorganic and natural and organic thermal stabilizers along side enhanced chemistry for the duration of PVC manufacture.
PVC tillverkas genom kedjepolymerisation av vinylkloridmolekyler och kan efter användningsområden indelas i Tv setå former:
در دنیای امروز کارت‌های پی‌وی‌سی کاربرد زیادی در زندگی روزانهٔ مردم دارند؛ زیرا این کارت‌ها برای خرید، عبور و مرور، حمل و نقل عمومی (مترو یا اتوبوس)، بانک و … مورد استفاده قرار می‌گیرند.