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挤塑板的内部结构是怎样的?
作者:admin 来源:本站 发布时间:2017-07-29 11:20:18 浏览次数:463
挤塑板是一种细密的充满泡孔的发泡体塑料,这些密闭的泡孔里面势必会裹覆一些气体,这些气体的成分对阻燃性多少也有些影响,阻燃剂被添加到挤塑板原料中经过熔融塑化基本在XPS中密布分散,挤塑板被引燃时需要有氧气的参与才能发生燃烧。

Extrusion plate is a fine full of foam plastic bubble, the bubble will be closed the wrapped gas inside the hole, the gas composition of flame retardant is also somewhat affected, the flame retardant is added to the raw material after melting extrusion plate basic in XPS clouds scattered, extruded plate is ignited when oxygen is required to participate in the fire.

山东挤塑板

山东挤塑板的气体如果是空气则属于常态下燃烧,这时是阻燃剂真实的阻燃效果,如果闭孔中封闭的是氟氯昂等阻燃性气体则为阻燃气体太下燃烧,由于有机物周围不能完全接触到助燃的氧气,可能有效的帮助阻燃剂阻燃,因为这种燃烧本身并不十分剧烈,阻燃剂的负担被减轻。
Shandong gas plastic extruded board if the air is under normal combustion, the flame retardant effect of flame retardant is true, if closed closed is the CFC as flame retardant gas for flame retardant gas too burning, because the organic matter can not be completely exposed to ambient oxygen for combustion, can effectively help the flame retardant. Because the combustion itself is not very intense, the flame retardant burden was reduced.
细密均匀的泡孔结构也比较有利于阻燃剂阻燃效率的发挥,细密的泡孔自然封闭的气体较少,而且增加了阻燃剂的单位体积分布,有利于阻燃剂的抱团作战,阻燃效率更容易得以发挥。山东挤塑板泡孔结构不够均匀的发泡体一则很容易溢出内部气体形成空气闭孔,另外阻燃剂的分布也不如均匀细密的泡孔结构。所以阻燃的难度相对大。
Fine and uniform pore structure but also more conducive to flame retardant efficiency, less gas fine bubble natural closed, but also increase the flame retardant volume distribution, is conducive to the flame retardant flame retardant efficiency is more likely to hold operations, to play. Shandong extrusion plate foam structure is not uniform foam, one is easy to overflow the internal gas, forming air closed cell, in addition, the distribution of flame retardant is not as good as uniform fine foam structure. Therefore, the difficulty of flame retardant is relatively large.
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