PVC är ett vitt pulver som saknar lukt och smak. Smälts pulvret bildar det en styv fileärglös polymer med densiteten cirka 1400 kg/m³ och med en mjukningstemperatur vid cirka eighty two°C.
ここでは塩ビの加工方法として代表的なものである、押出成形・カレンダー成形・射出成形・熱成形・ディッピング加工・コーティング加工を解説します。
Even so, PVC is recyclable beneath specified situations. It can be mechanically recycled by grinding it into compact items, that are then melted and remolded. In some cases, PVC can also be chemically recycled, breaking it down into its constituent monomers for reuse.
Its most typical use is in the development field, but It's also utilized to manufacture signs, in healthcare apps, and as a fiber for garments.
The contents of your reaction vessel are pressurized and regularly combined to keep up the suspension and be certain a uniform particle size from the PVC resin. The reaction is exothermic and therefore involves cooling. As the quantity is decreased through the response (PVC is denser than VCM), water is regularly additional on the combination to take care of 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。
کارت‌های پی‌وی‌سی کارت‌هایی هستند که از پلاستیک فشرده تهیه شده و یکی از محصولات صنعت پتروشیمی هستند و مقاومت آن‌ها در مقابل گرما و سرما در مقایسه با کارت‌های کاغذی بسیار بالاتر بوده و دوام و ماندگاری آن نیز به دلیل نوع مواد به کار رفته در آن‌ها بیشتر است و بر اثر فشار یا ضربه آسیب نمی‌بینند.
金属加工業界の未来を支える人材確保のカギとは？取り組みと課題を徹底解説
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
Expanded PVC board is commonly employed for upholstery bases on boats, furnishing toughness, waterproofing, and relieve of manipulation with regular woodworking instruments. It is also common for crafting custom made indicators and out of doors decor resulting from its flexibility in shape and sizing. Examine Far more Upholstery Bases
Poly(vinyl chloride) (PVC) has been a captivating matter for polymer science study. Its properties are heightened by its inherent structural faults resulting from immediate production (by free-radical polymerization), which also bring about its thermal instability. A number of the fundamental restricting attributes of PVC are actually advised to become alleviated by enhanced chemistry in the course of PVC synthesis, in addition to the usage of both inorganic and organic and natural thermal stabilizers. The traits, characterization, modification, recycling, and several applications of PVC are all examined With this paper along with the earlier and most recent exploration discoveries. It has been instructed that some of the basic limiting Homes of PVC is often lessened by making use of both of those inorganic and natural thermal stabilizers at the side of improved chemistry throughout PVC manufacture.
Packaging: PVC’s adaptability and resistance to oil and grease ensure it is an excellent option for food stuff packaging.
Although PVC has lots of valuable works by using, In addition it has a significant environmental impact. The output and disposal of PVC may result سعر شبابيك pvc in the discharge of damaging chemicals into the ecosystem. Also, resulting from its sturdiness, PVC waste can persist in the ecosystem for prolonged intervals.