The Single Best Strategy To Use For pvc
The Single Best Strategy To Use For pvc
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今回の記事では塩ビについての特徴・加工方法・用途などについて解説します。
PVC production involves a process often called polymerization, whereby monomers of vinyl chloride are chemically bonded to variety a polymer chain. The 2 primary kinds of polymerization used are suspension polymerization and emulsion polymerization.
Vid temperaturer upp till 60°C är styv PVC resistent mot de flesta oorganiska vätskor inklusive moderat koncentrerade syror samt alkali och icke-oxiderande saltlösningar i alla koncentrationer.
اعتقاد بر این است که بیشتر محصولات وینیلی زمانیکه بهطور صحیح مصرف شوند عموماً بیضررند هر چند تعدادی از افزودنیها و نرمکنندهها از محصول وینیلی میتوانند نشت کنند.
PVC was synthesized in 1872 by German chemist Eugen Baumann right after extended investigation and experimentation.[twelve] The polymer appeared being a white reliable within a flask of vinyl chloride that were still left over a shelf sheltered from sunlight for four weeks. In the early 20th century, the Russian chemist Ivan Ostromislensky and Fritz Klatte of your German chemical company Griesheim-Elektron both attempted to make use of PVC in commercial goods, but issues in processing the rigid, occasionally brittle polymer thwarted their attempts.
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What's more, it has excellent electrical insulation Attributes, which makes it an appropriate substance for wiring and cable programs.
PVC is created from petroleum. The manufacturing course of action also uses sodium chloride. Recycled PVC is broken down into powder or compact chips Using the impurities taken out.
Particular Life-style decisions and health problems may make an individual additional 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。
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。
Electronics: Owing to its superb insulation Qualities, PVC is commonly used in insulation for electrical wires and cables.