PVC är ett vitt pulver som saknar lukt och smak. Smälts pulvret bildar det en styv färglös polymer med densiteten cirka 1400 kg/m³ och med en mjukningstemperatur vid cirka 82°C.
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パイプなどのように、断面形状がシンプルな形状の製品を作るのに適しています。口金の形状を変えることで、押し出される製品も形を変えられます。
Its most common use is in the construction marketplace, but It's also accustomed to manufacture signals, in healthcare apps, and as a fiber for apparel.
The contents on the response vessel are pressurized and frequently mixed to keep up the suspension and guarantee a uniform particle sizing of the PVC resin. The response is exothermic and so calls for cooling. As the quantity is lessened during the reaction (PVC is denser than VCM), drinking water is continuously included to the mixture to maintain 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 شباك pvc 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
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Automotive: PVC can also be found in the automotive marketplace for areas like dashboards, seat coverings, and insulation for wiring.
Poly(vinyl chloride) (PVC) has actually been a fascinating subject matter for polymer science study. Its features are heightened by its inherent structural faults resulting from immediate manufacturing (by absolutely free-radical polymerization), which also trigger its thermal instability. Several of the fundamental restricting characteristics of PVC have been proposed to generally be alleviated by improved chemistry all through PVC synthesis, As well as using each inorganic and organic and natural thermal stabilizers. The characteristics, characterization, modification, recycling, and a variety of purposes of PVC are all examined On this paper together with the past and newest study discoveries. It's been suggested that a number of the elemental restricting Homes of PVC may be lessened by implementing both inorganic and natural thermal stabilizers at the side of improved chemistry for the duration of PVC manufacture.
Packaging: PVC’s flexibility and resistance to oil and grease ensure it is an outstanding choice for meals packaging.
Premature ventricular contractions (PVCs) are added heartbeats that start in among the heart's two lower pumping chambers (ventricles). These extra beats disrupt the frequent coronary heart rhythm, from time to time resulting in a feeling of a fluttering or even a skipped beat in the upper body.