原文來源:What is Melamine?

三聚氰氨議題正熱的時候,每個人對這玩意的說法都不一樣

一時興起就查了一下英文文章來翻譯
可惜我只有三分鐘熱度沒翻譯完...姑且留作紀念吧


三聚氰氨是一種有機化合物,常和甲醛結合生成三聚氰氨樹脂,
這是一種具防火耐熱能力的合成聚合物,結構極為穩定,因此用
途相當廣泛,例如:白板、地磚、廚房用具、阻燃織品、商用過
濾器。三聚氰氨受熱時容易塑形,但塑形後即定型。上述這些特
性,使它非常適合應用於部分產業之中。
此物質是由尿素和甲醛
混合之後,藉由熱和壓力開始聚合,再壓入模具中,製造成想要
的形狀。由於水會使塑膠不穩定,三聚氰氨在壓力下會釋出水分
使其穩定。經以上步驟,此物質完成聚合和製成最終產品-三聚
氰氨樹脂。

三聚氰氨樹脂是一種熱固性塑膠,成型後便無法再改變形狀。當
接觸足夠的高溫就會熔化,因此不能用於烤箱、微波爐等高溫環
境。這種塑膠相較於其他種類的塑膠能承受較高的溫度,但由於
其熱固性塑膠之特性,固化成型後無法再次經加熱重新塑形,因
此難以回收再利用。

可用於製作起泡產品。三聚氰氨泡沫具有相當特殊的結構,構成
勻稱而堅固的泡沫形狀,因此易於清潔多種物質。市面上販售的
多種商品即是採用三聚氰氨泡沫塑料,例如知名的清潔產品
Magic Eraser
(
註:美國的某廠牌清潔劑),就常被用來清除多種物質上的髒污。

 

 


 Melamine resin is used in Formica and similar construction products made from composite materials. Formica is made using melamine resin, which is used to coat the fibers in the upper layer of the construction product. The melamine resin makes the end result heat resistant, so that hot objects can be set on the counter without concern. The surface of the material is designed to be easily wiped and cleaned, creating a long lived household product.

 

三聚氰氨樹脂過去是用於Formica(佛麥卡塑膠貼面

 

 

Melamine also plays a role in a wide range of flame resistant materials. These include textiles used in upholstery and the uniforms worn by firemen. Thermal liners, heat resistant gloves, and aprons to protect from splashback of hot substances are made using melamine. Melamine will protect a wearer from heat hazards, and will help to resist the spread of fire in aircraft and buses by providing a fire blocker.

Melamine is also used in the manufacture of some filters. The material is porous and will admit substances to pass through, but can be used to filter out particles of a particular size. Melamine filters are capable of handling a high capacity and can be used in hot environments due to the heat resistance of melamine. Melamine filters are also extremely efficient.

Aside from common commercial uses, melamine became a topic of much discussion in early 2007, when veterinary scientists determined it to be the cause of hundreds of pet deaths, because of pet food contamination. Prior to these reports, melamine had been regarded as non-toxic or minimally toxic. However, because of the unexplained presence of melamine in wheat gluten added to mass-produced dog and cat foods, it is the most likely cause. Pet owners report symptoms that are commonly associated with renal failure, which could be explained by the ammonia that may result from the digestion of the melamine.



 

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