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聚氨酯泡沫料的应用,标志着保温材料已发展到了一定的水平。目前由于聚氨酯泡沫料紧缺,价格昂贵,而新型廉价高效的保温材料还没有出现,因此在现有的保温材料基础上,研制开发复合保温材料是重要的课题。 1复合材料保温结构散珍珠岩导热系数低,如用其代替泡夹管中的泡沫料,在不增加保温层厚度的情况下,可以得到与泡夹管同样的保温和防腐效果。该保温结构的成型工艺与管中管类同,具有成型
The application of polyurethane foam indicates that the insulation material has developed to a certain level. At present, due to the shortage of polyurethane foam and the high price, new types of cheap and efficient insulation materials have not yet emerged. Therefore, on the basis of existing insulation materials, research and development of composite insulation materials is an important issue. 1 Composite material insulation structure dispersed perlite has low thermal conductivity. If it is used to replace the foam material in the bubble clamp tube, the same thermal insulation and anti-corrosion effect as the bubble clamp tube can be obtained without increasing the thickness of the insulating layer. The molding process of the heat-preservation structure is similar to that of the tube-in-tube and has a molding process.