空分设备的保冷材料有几种，分别有何特性?

normal style="LINE-HEIGHT: 150%; TEXT-ALIGN: center" align=center>名称牌号

normal style="LINE-HEIGHT: 150%; TEXT-ALIGN: center" align=center>体积质量

normal style="LINE-HEIGHT: 150%; TEXT-ALIGN: center" align=center>/kg·m^-3

normal style="LINE-HEIGHT: 150%; TEXT-ALIGN: center" align=center>热导率

normal style="LINE-HEIGHT: 150%; TEXT-ALIGN: center" align=center>/W(m·K)^-1

normal style="LINE-HEIGHT: 150%; TEXT-ALIGN: center" align=center>比热容/

normal style="LINE-HEIGHT: 150%; TEXT-ALIGN: center" align=center>kJ(kg·K)^-1

normal style="LINE-HEIGHT: 150%; TEXT-ALIGN: center" align=center>其他特性

normal style="LINE-HEIGHT: 150%; TEXT-ALIGN: center" align=center>碳酸镁

normal style="LINE-HEIGHT: 150%; TEXT-ALIGN: center" align=center>400

normal style="LINE-HEIGHT: 150%; TEXT-ALIGN: center" align=center>130

normal style="LINE-HEIGHT: 150%; TEXT-ALIGN: center" align=center>0.05～0.07

normal style="LINE-HEIGHT: 150%; TEXT-ALIGN: center" align=center>0.03～0.04

normal style="LINE-HEIGHT: 150%; TEXT-ALIGN: center" align=center>1.00

normal style="LINE-HEIGHT: 150%; TEXT-ALIGN: center" align=center>1.00

normal style="LINE-HEIGHT: 150%; TEXT-ALIGN: center" align=center>要求含水率不大于2.5%

normal style="LINE-HEIGHT: 150%; TEXT-ALIGN: center" align=center> 

normal style="LINE-HEIGHT: 150%; TEXT-ALIGN: center" align=center>玻璃棉

normal style="LINE-HEIGHT: 150%; TEXT-ALIGN: center" align=center>130

normal style="LINE-HEIGHT: 150%; TEXT-ALIGN: center" align=center>0.047

normal style="LINE-HEIGHT: 150%; TEXT-ALIGN: center" align=center>0.84

normal style="LINE-HEIGHT: 150%; TEXT-ALIGN: center" align=center>直径3～30μm

normal style="LINE-HEIGHT: 150%; TEXT-ALIGN: center" align=center>膨胀珍珠岩

normal style="LINE-HEIGHT: 150%; TEXT-ALIGN: center" align=center>(珠光砂)

normal style="LINE-HEIGHT: 150%; TEXT-ALIGN: center" align=center>≤80(一级)

normal style="LINE-HEIGHT: 150%; TEXT-ALIGN: center" align=center>150(二级)

normal style="LINE-HEIGHT: 150%; TEXT-ALIGN: center" align=center>0.04～0.058

normal style="LINE-HEIGHT: 150%; TEXT-ALIGN: center" align=center>0.04～0.05

normal style="LINE-HEIGHT: 150%; TEXT-ALIGN: center" align=center>0.67

normal style="LINE-HEIGHT: 150%; TEXT-ALIGN: center" align=center>0.84

normal style="LINE-HEIGHT: 150%; TEXT-ALIGN: center" align=center>晶粒1mm以下90%；1～2mm晶粒10%；

normal style="LINE-HEIGHT: 150%; TEXT-ALIGN: center" align=center>含水率不大于0.5%

normal style="LINE-HEIGHT: 150%; TEXT-ALIGN: center" align=center>矿

normal style="LINE-HEIGHT: 150%; TEXT-ALIGN: center" align=center>渣

normal style="LINE-HEIGHT: 150%; TEXT-ALIGN: center" align=center>棉

normal style="LINE-HEIGHT: 150%; TEXT-ALIGN: center" align=center>100号

normal style="LINE-HEIGHT: 150%; TEXT-ALIGN: center" align=center>150号

normal style="LINE-HEIGHT: 150%; TEXT-ALIGN: center" align=center>200号

normal style="LINE-HEIGHT: 150%; TEXT-ALIGN: center" align=center>≤100

normal style="LINE-HEIGHT: 150%; TEXT-ALIGN: center" align=center>≤150

normal style="LINE-HEIGHT: 150%; TEXT-ALIGN: center" align=center>≤200

normal style="LINE-HEIGHT: 150%; TEXT-ALIGN: center" align=center>0.044

normal style="LINE-HEIGHT: 150%; TEXT-ALIGN: center" align=center>0.038～0.047

normal style="LINE-HEIGHT: 150%; TEXT-ALIGN: center" align=center>0.033～0.052

normal style="LINE-HEIGHT: 150%; TEXT-ALIGN: center" align=center>0.75

normal style="LINE-HEIGHT: 150%; TEXT-ALIGN: center" align=center>0.84

normal style="LINE-HEIGHT: 150%; TEXT-ALIGN: center" align=center>0.84

normal style="LINE-HEIGHT: 150%; TEXT-ALIGN: center" align=center> 

normal style="LINE-HEIGHT: 150%; TEXT-ALIGN: center" align=center>含水率不大于2%

normal style="LINE-HEIGHT: 150%; TEXT-ALIGN: center" align=center>