真空绝热板用复合吸气剂研究

发布时间：2018-06-28 06:13

本文选题：真空绝热板 + 导热系数　；参考：《南京航空航天大学学报》2017年01期

【摘要】：吸气剂是真空绝热板(Vacuum insulation panel,VIP)的重要组件之一,尤其是对于玻璃纤维芯材与有机泡沫芯材不可缺少,因为这些芯材的VIP导热系数对压力变化比较敏感。本文以玻璃纤维芯材的VIP为研究背景,通过对板内残余气体成分分析,开发了一种复合型吸气剂,研究了吸气剂的化学组分、制备工艺及性能参数,利用自制系统测试了吸气剂的吸气性能,探讨了吸气剂的吸附过程与吸附机理。将该吸气剂用于玻璃纤维芯材的VIP中,并与未使用吸气剂的VIP进行对比分析,结果表明该吸气剂能够使VIP的初始导热系数更低、使用寿命更长。
[Abstract]:Getter is one of the important components of vacuum insulation panel VIP, especially for glass fiber core and organic foam core, because the thermal conductivity of these core materials is sensitive to pressure change. In this paper, based on VIP of glass fiber core, a compound getter was developed by analyzing the residual gas in the plate. The chemical composition, preparation process and properties of the getter were studied. The adsorption process and adsorption mechanism of getter were investigated by means of self-made system. The getter is used in VIP of glass fiber core and compared with VIP without getter. The results show that the getter can make the initial thermal conductivity of VIP lower and the service life longer.
【作者单位】：南京航空航天大学绝热与节能材料国际实验室;
【分类号】：TB34

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