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挤塑板又名XPS板
聚苯乙烯泡沫塑料分为膨胀性EPS和连续性挤出型XPS两种，挤塑板与EPS板材相比，XPS板是第三代硬质发泡保温材料，挤塑板从工艺上它克服EPS板繁杂的生产工艺，挤塑板具有EPS板无法替代的优越性能。挤塑板是由聚苯乙烯树脂及其它添加剂经挤压过程制造出的拥有连续均匀表层及闭孔式蜂窝结构的板材，这些蜂窝结构的厚板，完全不会出现空隙，这种闭孔式结构的保温材料可具有不同的压力（150-500Kpa）同时拥有同等低值的导热系数（仅为0.028W/M.K）和经久不衰的优良保温和抗压性能，抗压强度可达220-500Kpa。挤塑板的机械性能是EPS无法比拟的，另外，由于连续性挤出所致的紧密的闭孔结构。挤塑板的密度、吸水率、导热系数及蒸汽渗透率均低于其他类型的板材，是目前市场公认的较好的保温材料。
挤塑板就是挤塑式聚苯乙烯隔热保温板，挤塑板是以聚苯乙烯树脂为原料加上其他的原辅料与聚含物,通过加热混合同时注入催化剂,然后挤塑压出成型而制造的硬质泡沫塑料板.挤塑板的学名为绝热用挤塑聚苯乙烯泡沫塑料（简称XPS),XPS具有很好的闭孔蜂窝结构，这种结构让挤塑板有极低的吸水性（几乎不吸水）、低热导系数、高抗压性、抗老化性（正常使用几乎无老化分解现象）。

挤塑板的性能特点

1、挤塑板具有优良的保温隔热性

挤塑板具有高热阻、低线性、膨胀比低的特点，挤塑板结构的闭孔率达到了99%以上，形成真空层，避免空气流动散热，确保其保温性能的持久和稳定，相对于发泡聚氨酯80%的闭孔率，优势不言而喻。实践证明20mm厚的XPS挤塑保温板，其保温效果相当于50mm厚发泡聚苯乙烯，120mm厚水泥珍珠岩。因此挤塑板是目前建筑保温的前选。

2、挤塑板具有高强度抗压性

由于挤塑板的特殊结构，其抗压强度极高、抗冲击性极强，根据XPS的不同型号及厚度其抗压强度达到150～500Kpa以上，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。

3、挤塑板具有**的憎水、防潮性

吸水率是衡量保温材料的一个重要参数。保温材料吸水后保温性能随之下降，在低温情况下，吸入的水极易结冰，破坏了保温材料的结构，从而使板材的抗压及保温性能下降。由于聚苯乙烯分子结构本身不吸水，板材分子结构稳定，无间隙，解决了其它材料漏水、渗透、结霜、冷凝等问题。

4、挤塑板质地轻、使用方便

挤塑板的完全闭孔式发泡化学结构与其蜂窝状物理结构，使其具有轻质、高强度的特性，便于切割、运输，且不易破损、安装方便。

5、挤塑板的稳定性、防腐性好

挤塑板在长时间的使用中，不老化、不分解、不产生有害物质，其化学性能极其稳定，不会因吸水和腐蚀等导致降解，使其性能下降，在高温环境下仍能保持其优越的性能，根据有关资料介绍，XPS挤塑保温板即使使用30～40年，仍能保持优异的性能，且不会发生分解或霉变，没有有毒物质的挥发。

6、挤塑板的环保性能

挤塑板经有关部门检测起化学性能稳定，不挥发有害物质，对人体无害，生产原料采用环保型材料，不产生任何工业污染。该产品属环保型建材。

挤塑板的适用范围
建筑物屋面保温、钢结构屋面、建筑物墙体保温、建筑物地面保湿、广场地面、地面冻胀控制、中央空调通风管道等。