Various ongoing scientific tests have expanded this chemistry, largely with the chemical changes of the polymeric material. The chemical modification of PVC employing several resources as an Energetic modifying agent is described With this perform. The latter comprised grafting polymerizations, nucleophilic radicals, substitutions, PVC modifications, and removal or dehydrochlorination. This standpoint addresses the principle PVC reactivity developments and provides an outline of PVC functionalization although analyzing the environmental implications of PVC through the prism of chemical recycling. Via extensive ongoing investigate, this chemistry has been expanded, mainly with the chemical alterations of the polymeric substance. To boost its Photograph-balance Homes, develop the purposes of poly(vinyl chloride) (PVC), and look into PVC-similar phenomena, numerous chemical modifications have been introduced to PVC.
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.
【図解】チェッカープレート(縞板)の曲げ加工が通常より高くなる理由とは？
قالب‌گیری به روش تزریقی، اکستروژن و شکل‌دادن حرارتی نیز از روش‌های دیگر هستند.
The contents from the reaction vessel are pressurized and continuously blended to maintain the suspension and make sure a uniform particle measurement on the PVC resin. The reaction is exothermic and thus needs cooling. As the amount is minimized during the reaction (PVC is denser than VCM), water is constantly extra into the combination to maintain the suspension.[9]
شکل‌دادن در فشار کم: قالب‌گیری به‌وسیله فشار و انژکسیون بسیار سریع و برای تهیه اشیا قالب‌گیری شده با ابعاد کم و متوسط به کار می‌رود.
聚氯乙烯可由乙烯、氯和催化劑經取代反應製成。由於其防火耐熱作用，聚氯乙烯被廣泛用於各行各業各式各樣產品：
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Pure polyvinyl chloride can be a white, brittle reliable frequently ابواب وشبابيك pvc delivered as powder or pellets. It is actually insoluble in Liquor but slightly soluble in tetrahydrofuran.
・耐衝撃性：他の五大汎用樹脂と比べて耐衝撃性に乏しい。特に低温環境だと衝撃値が低下する。
Poly(vinyl chloride) (PVC) continues to be a captivating subject for polymer science investigation. Its characteristics 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 features of PVC are already suggested for being alleviated by enhanced chemistry throughout PVC synthesis, Besides the use of the two inorganic and natural and organic thermal stabilizers. The traits, characterization, modification, recycling, and several applications of PVC are all examined On this paper together with the past and most up-to-date investigate discoveries. It has been suggested that a number of the elemental limiting Qualities of PVC is often lessened by applying the two inorganic and organic and natural thermal stabilizers in conjunction with improved chemistry through PVC manufacture.
PVC tillverkas genom kedjepolymerisation av vinylkloridmolekyler och kan efter användningsområden indelas i två former:
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