欢迎来到济南诺誉商贸有限公司官方网站!
全国服务热线

行业资讯

当前位置:首页-新闻中心 > 行业资讯 >

PVDF管材的在使用中的静电作用

任何两个固体,不论其化学组成是否相同,只要它们的物理状态不同,其内部结构中电荷载体能量的分布也就不同。当这样两个固体接触时,在一固体表面就会发生电荷再分配,在它们重新分离以后,每一固体都带有比接触前过量的正(或负)电荷,这种现象称为静电。

Any two solids, whether or not their chemical composition is the same, as long as their physical state is different, the internal structure of the charge carrier energy distribution is also different. When these two solid contact, charge redistribution occurs in a solid surface will, after their separation, each with a solid contact before an excess of positive (or negative) charge, this phenomenon is called static.

在PVDF管材工业中相同或不同的材料接触十分普遍,这时只要在PVDF管材几百个原子中转移一个电子就会使高聚物带有相当大的电荷量,变成带电体。例如聚丙烯睛纤维因摩擦产生的静电可达1500V以上。电阻值高,吸水性差的非极性高聚物材料在其生产过程中积蓄的静电往往达到妨碍生产顺利进行的程度,产品的质量也受到一定影响。

In the PVDF tube industry, contact of the same or different materials is very common. At this time, if an electron is transferred in the hundreds of atoms of the PVDF pipe, the polymer will have a considerable amount of charge and become a charged body. For example, polypropylene fiber due to friction generated by static electricity can reach more than 1500V. In the non-polar polymer material with high resistance and poor water absorption, the static electricity stored in the process of production often reaches the degree of hindering the smooth progress of production, and the quality of the product is also affected.

一般认为,当PVDF管材摩擦时,介电常数大的高聚物带正电,介电常数小的带负电,下面列举一些高聚物的带电顺序:

It is generally believed that when the PVDF tube is rubbed, the polymer with a large dielectric constant is positively charged and the dielectric constant is small and negatively charged. The charged sequence of some polymers is listed below:

QQ截图20160810102420.png

当上述序列中两种物质进行摩擦时,总是排在序列前面的物质表面产生正电,排在其后的物质表面产生负电。

When the two substances in the above sequence are rubbed, the surface of the material which is always placed in front of the sequence is positively charged and negatively charged on the surface of the material thereafter.

一般说来,静电作用在PVDF管材加工和使用过程中是个不利因素。首先,表面电荷能引起材料个别部分相互排斥或吸引等静电作用,给一些工艺过程带来困难;其次,静电作用常常损坏产品质量,其中常见的情况是由PVDF管材表面吸附所致。

In general, electrostatic action is a disadvantage in the processing and use of PVDF pipes. First of all, the surface charge can cause the material to repel or attract other individual parts of electrostatic interaction, bring difficulties to some process; secondly, the electrostatic interaction often damage the quality of products, the common situation is caused by the surface adsorption of PVDF pipe.

本文文章来源:CPVC管材管件阀门批发更多的内容请进入: http://www.sdcpvc.com我们的官方网站

Article source: CPVC pipes, fittings, valves wholesale, more content please enter: http://www.sdcpvc.com, our official website


上一篇:CHT型铸铁旋流降噪管件的应用
下一篇:最后一页

在线咨询

售后服务