The Single Best Strategy To Use For pvc
The Single Best Strategy To Use For pvc
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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。
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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.
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Expanded maritime PVC board or expanded PVC is really a form of PVC which has been expanded with a Distinctive foaming agent to boost the thickness of the material although cutting down its density. The foaming agent has long been included in the look purposefully to lower just how much plastic is applied.
ポリ塩化ビニルの「ポリ」という言葉は、ポリマー（重合体）からきたもので、「たくさん」という意味があります。しかし、一般的に呼ばれている「塩ビ」は塩化ビニルではなく、ポリ塩化ビニルを指しているケースが多いので注意が必要です。
問い合わせが多い工場の秘密！他社と差をつける営業テクニックやよくあるミスとは
در ژانویهٔ ۲۰۰۶ اتحادیهٔ اروپا یک تحریم برای ۶ نوع فتالیت نرم‌کننده در اسباب‌بازی‌ها قرار داد. در سال ۲۰۰۳ کمیسیون امنیتی محصولات مصرفی آمریکا عریضه برای تحریم مشابه در ایالات متحده را انکار کرد.
پیش از قرن بیستم شیمیدان روسی ایوان استرا میسلنسکی و فریتز کلیت از کمپانی گریشم الکترون شیمی آلمان هر دو تلاش کردند تا پی‌وی‌سی را در محصولات تجاری به‌کار گیرند اما مشکلات در فرایند، سختی و گاهی شکنندگی پلیمر تلاش‌های آن‌ها را بی‌نتیجه می‌گذاشت.
Allt eftersom biltillverkarna har sökt efter lättare material har fler och fler detaljer i bilen blivit tillverkade i plast.
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Poly(vinyl chloride) (PVC) has actually been a fascinating subject matter for polymer science research. Its attributes are heightened by its inherent structural faults resulting from direct producing (by free of charge-radical polymerization), which also bring about its thermal instability. A number of the elemental limiting capabilities of PVC happen to be instructed to become alleviated by enhanced chemistry in the course of PVC synthesis, In combination with the usage of both equally inorganic and organic thermal stabilizers. The attributes, characterization, modification, recycling, and various programs of PVC are all examined During this paper along with the previous and most recent analysis discoveries. It's been suggested that a number of the elemental limiting Homes of PVC is usually lessened by applying equally inorganic and natural and organic thermal stabilizers together with enhanced chemistry in the course of PVC manufacture.
Packaging: PVC’s overall flexibility and resistance to oil and grease enable it to be a great choice for food items packaging.
Even though PVC has many effective works by using, What's more, it has a major environmental effect. The production and disposal of PVC can lead to the discharge of hazardous chemical substances into the ecosystem. Also, on account of its sturdiness, PVC waste can persist during the natural environment for prolonged periods.