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采用硬质聚氨酯泡沫塑料进行管道保温,是一项新工艺,聚氨酯硬质泡沫塑料的形成,除在聚合系统中的化学和物理过程之外,还增加了胶体系统的特点,是一种比较复杂的高分子化学反应。在我公司承担的某项油气管线工程中,根据需要,要对长达68公里的重油管线采用硬质聚氨酯泡沫塑料保温。在毛主席无产阶级革命路线指引下,在学习无产阶级专政理
The use of rigid polyurethane foam for pipe insulation is a new process. The formation of polyurethane rigid foam, in addition to the chemical and physical processes in the polymerization system, also adds to the characteristics of the colloidal system, which is a more complex The polymer chemical reaction. In a certain oil and gas pipeline project undertaken by our company, as required, a 68-kilometer heavy oil pipeline shall be insulated with rigid polyurethane foam. Under the guidance of Chairman Mao’s proletarian revolutionary line, he is studying the proletarian special government.