轻质保温隔墙板的制备及性能研究

Study on the Preparation and Properties of Lightweight Thermal Insulation Wall Panel

建筑节能理念已受到普遍关注,轻质保温隔墙板作为一种节能材料且多功能化而成为研究开发的热点.由发泡聚苯乙烯(EPS)颗粒保温砂浆制备而成的芯材是轻质保温隔墙板的重要组成部分,对隔墙板性能起决定性作用.现有的保温隔墙板虽质轻,但强度较弱.为获得密度低、抗压强以及粘结性好的EPS保温砂浆芯材,以干表观密度对导热系数和抗压强度的影响为引导,研究了粉煤灰、发泡剂、甲基纤维素醚等对芯材抗压强度及粘结性能的作用规律;对芯材的压缩应力-应变曲线进行了分析,并讨论了增韧原因;初步试生产制得了综合性能良好的轻质保温隔墙板.

As energy-saving material,lightweight thermal insulation wall panel has been highly favored by the market and has received many interests because it has good performance such as sound insulation,easy construction and so on.The ＂core＂ part of lightweight thermal insulation wall panel was prepared by expanded polystyrene（EPS） insulation mortars,and it played a key role in improving performance of products.In order to obtain low density,high strength and high bond properties of EPS insulation mortar,the relationship between the dry apparent density of the core material with the thermal conductivity and compressive strength was investigated.The compressive stress-strain curve of the core material was analyzed and the reason for toughening was discussed.Finally,lightweight thermal insulation wall panel with good performance was produced by the given construction processing.Our research will be helpful for the development and industrialization of EPS insulation mortar with low density,high compressive strength and high bond properties.