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水分子作用力对挤塑板的影响
作者:admin 来源:本站 发布时间:2018-07-05 16:19:16 浏览次数:505
挤塑板的抗压强度极高、抗冲击性极强,能承受各系统地面荷载,广泛应用于地热工程、高速公路、机场跑道、广场地面、大型冷库及车内装饰保温等领域。
The extrusion plate has high compressive strength and strong impact resistance, and can withstand the ground load of various systems. It is widely used in the fields of Geothermal Engineering, expressway, airport runway, square ground, large cold storage and interior decoration and heat preservation.

挤塑板由于自身变形及温差变形而产生的变形应力大。点框粘挤塑板薄抹灰系统由于聚合物抹面砂浆与挤塑板导热系数相差31倍。抹面砂浆与挤塑板线胀系数差异较大、在夏季外墙外表面温度变化较大,在较长时间的曝晒后突然降下阵雨,产生热应力,引发了相邻材料变形速率差不一致,材料热胀冷缩,长期处于一种不稳定的热胀冷缩运动状态,使聚合物砂浆与挤塑板之间产生剪力,影响它们之间的粘结强度。

山东挤塑板

The deion stress of extruded plate due to its deion and temperature difference is large. There is a difference of 31 times between the thermal conductivity of the polymer coated mortar and the extruded sheet. The linear expansion coefficient of the plaster mortar and the extrusion plate varies greatly, and the external surface temperature varies greatly in the summer. After a long period of exposure, the shower is suddenly lowered and the thermal stress is generated, which leads to the difference of the deion rate of the adjacent materials, the thermal expansion and contraction of the material, and a long period of unstable thermal expansion and contraction. The shear force between mortar and extruded plate affects the bond strength between them.
在连绵不断的梅雨季节。聚合物膜吸收的雨水比释放出来的潮气还多,雨水也会经细微的裂纹或破损处进入到建筑材料内部。而在水分、太阳光的紫外线、空气中的氧气和能量的共同作用下,发生氧化反应和水解反应,导致涂膜有机聚合物降解,涂膜吸水膨胀,千燥收缩,会产生应力。
In the continuous rainy season. The polymer membrane absorbs more rainwater than the moisture released, and the rain will enter the interior of the building material through tiny cracks or breakages. Under the action of water, ultraviolet rays of the sun, oxygen and energy in the air, the oxidation reaction and hydrolysis reaction occur, resulting in the degradation of the organic polymer of the coating, the film swelling and the shrinkage of the dry film, and the stress can be produced.
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