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生态板中为什么要使用偶联剂?

  偶联剂是指能改善填料与高分子材料之间界面特性的一类物质,生态板厂家在生产加工生态板一般会使用偶联剂。那么偶联剂对生态板到底有哪些好处呢?
  Coupling agent is to point to to improve the interface between filler and polymer properties of material, ecological board manufacturers in the production and processing board usually using coupling agent. Then the coupling agent on the ecological plate exactly what are the benefits?
  偶联剂在复合材料中的作用在于它既能与增强材料表面的某些基团反应,又能与基体树脂反应,在增强材料与树脂基体之间形成一个界面层,界面层能传递应力,从而增强了增强材料与树脂之间粘合强度,提高了复合材料的性能,同时还可防止其它介质向界面渗透,改善了界面状态,有利于制品的耐老化、耐应力及电绝缘性能。
  Coupling agent on the role of composite materials is that it can react with certain groups on the surface of the reinforced material, and can react with matrix resin, between reinforcing materials and resin matrix in the formation of an interface layer, interface layer can pass stress, so as to enhance the bonding strength between the reinforcing materials and resin, which improves the performance of composite material, at the same time also can prevent the other medium to permeate interface, improved the interface state, is advantageous to the products resistance to aging, stress and electric insulation performance.
  偶联剂的分子结构中一般存在两种有效的官能团:一种官能团可与憎水性的高分子基体发生化学反应或者有较好的相容性,另一种官能团可以亲水基团形成组合。在生态板中,木材为亲水性物质,而塑料作为憎水性物质,二者界面相容性差,因此要得到性能良好的复合材料必须对材料进行改性,采用偶联剂就要简便易行的方法。
  The molecular structure of the coupling agent there are generally two kinds of effective functional group: a functional group can react with the hydrophobic polymer substrate or has good compatibility, another functional groups can form hydrophilic group combination. In the ecological board, wood for hydrophilic substances, and plastic as a hydrophobic material, the interfacial compatibility is poor, so to get a good performance of composite material must be modified for the materials, adopt the method of coupling agent is easy.

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