苯乙烯和聚苯乙烯之间的差异|比较类似术语之间的差异

关键区别 - 苯乙烯与聚苯乙烯

苯乙烯和聚苯乙烯是两个重要的有机化合物具有广泛的应用。苯乙烯和聚苯乙烯之间的关键区别在于苯乙烯的聚合形成聚苯乙烯，一种合成热塑性弹性体。苯乙烯在化学上称为乙烯基苯，是世界上最古老的乙烯基化合物之一。这个芳香化合物于1839年首先与某些天然树脂分离。聚合苯乙烯单体单位。聚苯乙烯成为使用最广泛的塑料之一，尤其是在第二次世界大战期间。即使在今天，苯乙烯和聚苯乙烯由于其特征性的物理和化学特性，在聚合物行业中起着一些重要作用。

1。概述和关键差异
2。What is Styrene
3。什么是聚苯乙烯
4。Side by Side Comparison – Styrene vs Polystyrene in Tabular Form
5。Summary

苯乙烯是什么?

苯乙烯被化学称为乙烯基苯。The German chemist Edward Simon first isolated it in 1839 from natural resins including storax and dragon’s blood (a resin obtained from the fruit of Malayan rattan palm). Until the late 1920s styrene was not employed widely in industrial applications. A French chemist, M. Berthelot in 1851, first introduced the basis of present commercial production methods of styrene. According to his method, the styrene monomers are produced by passing乙烯andbenzenethrough a red-hot tube or in short by脱水of ethyl benzene. Styrene can be polymerized using solvent, bulk, emulsion, or suspension polymerization techniques with the presence of organic peroxides ascatalysts。

Styrene is mainly used as a raw material for the production of polystyrene and styrene-butadiene rubber (SBR). Because of these two important products, the production of styrene-based polymers has become the world’s third largest polymer production. First and second ranks are obtained by the production of ethylene andPVC。聚苯乙烯被广泛用作包装材料。SBR是一种廉价的合成弹性体，广泛用于轮胎制造。

Figure 01: Polystyrene Formation

共聚物苯乙烯-acrylonitrile are used to make machine house, automotive components, and battery casings. As styrene monomer contains benzene, exposure to high concentration of styrene monomer may cause respiratory and mucous membrane irritation. Prolong exposure to styrene may cause potential injuries in the nervous system and liver damages. Thus, precautions must be taken while loading, mixing, and heating operations of styrene.

什么是聚苯乙烯？

聚苯乙烯是有机的热塑性弹性体由苯乙烯或乙烯基苯的聚合形成。它是一种刚性，轻巧，无定形的弹性体，具有出色的电气和耐水性能。此外，与许多其他常见的热塑性塑料不同，它很难，透明且易于模制。聚苯乙烯的物理特性可以通过不同的分子质量分布，加工方法和生产过程中使用的添加剂类型来改变。

聚苯乙烯有许多应用，包括墙壁瓷砖，镜头，瓶盖，电气零件，小罐子和显示盒。此外，该聚合物被广泛用作廉价的食品包装材料。聚苯乙烯的细丝用于刷刷。膨胀的聚苯乙烯（EPS）或泡沫聚苯乙烯是在存在吹剂和挥发性液体（例如丙烯，丁烯或氟化合物）的情况下加热聚苯乙烯制成的。

图02：聚苯乙烯

每股收益是广泛用于浮选devices owing to its low density. Moreover, it is widely applied as thermal insulation in refrigerators, cold storage rooms and between building walls. In addition, EPS has excellent shock absorption abilities. Thus, it is used as a lightweight packaging material, which saves shipping and breakage costs.

苯乙烯和聚苯乙烯有什么区别？

苯乙烯与聚苯乙烯
苯乙烯是乙烯基芳香族烃，充当聚苯乙烯的单体。	聚苯乙烯是有机的热塑性弹性体formed by the polymerization of styrene
生产
Styrene is produced by dehydration of ethyl benzene.	Polystyrene is produced by polymerization of styrene.
Applications
苯乙烯用作生产苯乙烯 - 丙烯腈和丙烯腈丁二烯 - 苯乙烯（ABS）的聚苯乙烯，SBR和共聚物的原料。	聚苯乙烯用于墙壁瓷砖，镜头，瓶盖，电气零件，小罐子，显示盒，包装材料，绝缘材料等。

摘要 - 苯乙烯与聚苯乙烯

Styrene (vinyl benzene) is a vinyl aromatic hydrocarbon that acts as a monomer for the production of polystyrene by undergoing addition polymerization. Polystyrene is a lightweight, rigid, low-density thermoplastic elastomer with excellent insulation and moisture resistant properties. Styrene is mainly used to produce polystyrene, SBR and copolymers of styrene-acrylonitrile and ABS rubbers while polystyrene is widely used as a packaging and insulation material. This is the difference between Styrene and Polystyrene.

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References:

1. Sullivan，J。B.和Krieger，G。R.（编辑）。临床环境健康和有毒暴露。Lippincott Williams＆Wilkins，2001年。印刷。
2. Richardson，T。L.和Lokensgard，E。工业塑料：理论和应用。Cengage Learning，2004年。印刷。