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XPS挤塑板常见的一些要点
作者:admin 来源:本站 发布时间:2017-02-21 11:17:36 浏览次数:375
1.XPS挤塑板为什么不吸水,导热系数低,保温效果好?
1.XPS board why not water, low thermal conductivity, good thermal insulation effect?
XPS挤塑板是由聚苯乙烯、多种助剂、发泡剂在挤出机中混合、熔融、加压、混炼后经过模头挤出,压力释放,发泡剂气化形成微小气泡,被包复在聚苯乙烯膜泡内,冷却定型形成截面均匀、闭孔蜂窝状的板材。这种结构决定了其优异的保温隔热,性能.导热系数低于(0.027),由于是闭孔结构,吸水率极低。

XPS board is made of polystyrene, various additives, foaming agent in the extruder mixing, melting, mixing, compression after die extrusion, pressure release, foaming agent gasification ion of tiny bubbles that are coated on polystyrene film bubble cooling plate, formed uniform section and obturator honeycomb. This structure determines its excellent thermal insulation properties, thermal conductivity below. (0.027), because it is a closed cell structure, bibulous rate is extremely low.

济南挤塑板厂家

2.XPS挤塑板是容重越重越好吗?
2.XPS board is the bulk density of the heavier the better?
目前市场上有些厂家误导消费者,说XPS产品容重越重越好。其实不然,首先要确认我们需要的是保温材料,它的用途是用来保温隔热。
Currently on the market, some manufacturers to mislead consumers, said the heavier the weight of the XPS product better. In fact, the first thing we need to confirm that the insulation material, it is used for insulation.
依据越重越好的理论,产品不发泡最重,我们还会购买吗?容重越重说明产品发泡不好,即保温隔热性能差。要想实现保温隔热,XPS挤塑板只有合适的发泡才能够起到保温隔热的效果,泡孔的结构均匀性决定着产品的性能。
Based on the theory of the heavier the better, the product is not the most heavy foam, we will buy it? The heavier the weight of the product is not good, that is, poor thermal insulation performance. In order to achieve thermal insulation, XPS board only the right to be able to play the foam insulation effect, the cell structure uniformity determines the performance of products.
3.容重与抗压强度和保温隔热性能的关系?
3 bulk density and compressive strength and thermal insulation performance?
XPS挤塑板正常的要求是:保温隔热好,抗压强度高。但这是相互矛盾的。
XPS board is the normal requirements: good heat insulation, high compressive strength. But this is contradictory.
抗压强度高,产品容重大,要求发泡倍率低,保温隔热性能下降;保温隔热性好,发泡倍率高,产品容重轻,抗压强度下降;保证产品发泡倍率高,而又抗压强度好才是理想的产品。即产品容重越轻,抗压强度又高,才是最好的产品。
High compressive strength, product tolerance, low foam insulation requirements, performance degradation; good thermal insulation, high foaming ratio, product density, compressive strength decreased; ensure high foaming ratio, and good compressive strength is the ideal products. That is, the lighter weight of the product, high compressive strength, is the best product.
4.泡孔结构与抗压强度和保温隔热性能的关系?
4 the relationship between the pore structure and compressive strength and thermal insulation performance?
泡孔结构分:泡孔直径尺寸和泡孔形状。
The structure of the bubble hole: bubble diameter and bubble shape.
泡孔结构为:泡孔尺寸微小细密,泡孔分布均匀,泡孔形状为圆形。显微镜下显示为密闭蜂窝状结构。
Bubble structure: the cell size of micro fine bubble, uniform distribution, pore shape is round. Under the microscope showed closed honeycomb structure.
泡孔细密且泡孔非常多,泡孔尺寸为圆形故而抗压强度高,保温隔热性能好。
Fine bubble and the bubble hole is very much, the cell size is circular and high compressive strength, good thermal insulation performance.
质量不好的产品:
Poor quality products:
泡孔结构为:泡孔尺寸粗大,尺寸不均匀,大小不一。泡孔分布不均匀,泡孔形状显示为拉伸方向长圆形或厚度方向为长圆形或宽度方向为长圆形。显微镜下显示为部分开孔孔型孔径不均。
The pore structure is: the size of the bubble hole is large, the size is not uniform, and the size is different. Bubble distribution is not uniform, the bubble shape shows the stretching direction the direction of thickness is oblong or oblong or oblong width direction. Under microscope, the pore diameter of the part of the open hole is uneven.
泡孔粗大且泡孔量少,尺寸为长圆故而抗压强度差,保温隔热性能差。
Bubble coarse and bubble size is less, so long compressive strength, poor thermal performance.
5.新料与回收料产品制造的XPS挤塑板质量一样吗?
XPS board quality of 5 new materials and recycled products like?
新料和回收旧料生产的产品质量绝对不同。
The quality of the products produced by the new material and recycling of old materials is absolutely different.
新料聚苯乙烯是有含有双键的低分子聚合而成,分子量很大,分子链很长。在成型过程中可以保证发泡孔成膜性良好,形成的泡孔均匀,泡孔壁较薄,产品抗压强度较高。用手掰下产品小块,用力捏后可以回弹。
Polystyrene is a new material containing double bonds of low molecular polymerization, molecular weight, molecular chain is very long. During the forming process, the foaming hole can be well formed, the bubble holes are uniform, the pore wall is thin, and the compressive strength of the product is high. Break off the small pieces of the product with the hand, can rebound after the pinch.
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