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二氧化碳挤塑板和普通挤塑板的区别!
作者:admin 来源:本站 发布时间:2019-04-18 13:59:42 浏览次数:84
  那二氧化碳挤塑板和普通挤塑板的区别有哪些呢?
What are the differences between carbon dioxide extruded panels and ordinary extruded panels?
我们找了几种密度在33-35Kg/m?挤塑板来做对比,从肉眼我们看可以发现几点不同。
Several kinds of extruded panels with density of 33-35Kg/m have been found to be different from the naked eye.
第一、断面水晶反光更少
First, cross-section crystal reflects less light.
从上图可以看到,普通挤塑板的水晶反光更多。
As can be seen from the picture above, the crystals of ordinary extruded panels reflect more light.
从上图可以看到,普通挤塑板的水晶反光更多,且掰断断面很平整,二氧化碳挤塑板的断面高低不平,且呈条纹状。
As can be seen from the above picture, the crystal reflection of ordinary extruded board is more, and the broken section is very flat, the section of carbon dioxide extruded board is uneven and striped.
细看可以发现,反光的是挤塑板泡孔壁。因为泡孔粗大,所以泡孔壁的反光明显,肉眼可见。
Looking closely, it can be found that the reflection is the cell wall of the extruded plate. Because the cell is thick, the reverse light of the cell wall is visible to the naked eye.
无水晶反光,说明二氧化碳挤塑板的泡孔更细腻。
No crystal reflections, indicating that carbon dioxide Extrusion board bubble more delicate.
第二、手感硬度低
Second, low hand hardness
从上图可以看到,在用力按压后,两种挤塑板都会下凹,普通挤塑板表面还会断裂。
As can be seen from the picture above, both kinds of extruded plates will be concave after pressing, and the surface of ordinary extruded plates will also be broken.
注意:手感硬度不代表抗压性能,手感受到的只是表皮的硬度。
Note: Hand hardness does not represent compressive performance, but only skin hardness.
这说明普通挤塑板表皮较厚,且脆性大。挤塑板表皮基本没有泡孔,所以是没有保温效果的,一旦破裂就容易下陷。
This shows that the skin of ordinary extruded board is thicker and brittle. The extruded board has no bubbles on the surface, so it has no thermal insulation effect, and it is easy to sink once it breaks down.
二氧化碳挤塑板手感硬度低,说明表皮更薄,保温性更好;按压后不会下陷,说明泡孔结构更稳定。
Carbon dioxide Extrusion board has low hand hardness, which means that the skin is thinner and the heat preservation is better; it will not sink after pressing, which means that the cell structure is more stable.
第三、不容易掰断
Third, it is not easy to break
上面的视频可以看出,二氧化碳挤塑板柔韧性更好,不容易被掰断,且断面不平整。
As can be seen from the above video, carbon dioxide extruded sheets are more flexible, not easy to break, and have uneven sections.
从生产工艺分析:
From the production process analysis:

二氧化碳发泡过程中压强更大,所以在挤出释放压力时压差也会更大。这就需要聚苯乙烯原料更好,分子链更完整。不然会出现泡孔壁被撑破,然后板面塌陷的情况。

Carbon dioxide foaming process pressure is greater, so the pressure difference will be greater when the pressure is released during extrusion. This requires better polystyrene materials and more complete molecular chains. Otherwise, the bubble wall will be broken and then the plate surface will collapse.
从挤塑板结构分析:
From the structure analysis of extruded sheet:
普通挤塑板表皮厚,板材的硬度和韧性全靠表皮,施工时只要划破表皮,轻轻一掰就断。
The common extruded board has a thick skin. The hardness and toughness of the board depend entirely on the skin. During the construction, it only needs to cut the skin and break it gently.
二氧化碳挤塑板表皮薄,抗压韧性是靠全部泡孔的稳定性,所以施工时需要刀片透切,才好掰断。
Carbon dioxide extruded sheet has thin skin, and its compressive toughness depends on the stability of all bubbles. Therefore, it is necessary to cut the blades thoroughly before breaking them.
不易掰断且断面呈条纹状,说明二氧化碳挤塑板原料更好,分子链完整。
It is not easy to break and the section is striped, which indicates that carbon dioxide extruded board has better raw material and complete molecular chain.
第四、颜色相对较淡
Fourth, the color is relatively light.
色母比例相同情况下,二氧化碳挤塑板颜色更淡。
The color of carbon dioxide Extrusion board is lighter when the color masterbatch ratio is the same.
注意:并不是说,颜色淡的就是二氧化碳挤塑板。
Note: It's not that carbon dioxide extrusion boards are light in color.
第五、导热系数分析
Fifth, Analysis of Thermal Conductivity
挤塑板是一种建筑常用的有机类保温材料。作为建筑保温材料需要满足几个条件。
Extruded plastic sheet is a kind of organic thermal insulation material commonly used in buildings. As building insulation material, several conditions need to be satisfied.
首先保温性能好(导热系数低、泡孔细腻),长期保温性能也要好(吸水率低、耐候性好、寿命长)。其次因使用范围不同对抗压性能(密度大、泡孔密、孔壁厚)有不同的要求。
Firstly, the thermal insulation performance is good (low thermal conductivity, fine foam), and the long-term thermal insulation performance is also good (low water absorption, good weather resistance, long life). Secondly, there are different requirements for compressive performance (high density, cell density, wall thickness) due to different application range.
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