Some HCFC blowing agents replacing CFC 11 for polyurethane foam are introduced in this paper.
简单地介绍了几种用于聚氨酯泡沫塑料的CFC替代物——HCFC 发泡剂的性能特点。
The tendency for replacement of CFC-11 and low density molded foam technologies is also discussed.
对CFC - 11替代、模塑泡沫低密度化等方面技术发展趋势加以讨论。
The basic principle of atmospheric ozone layer destruction hy polyurethane blowing agent CFC-11, and various way, developmental trend and economic feature of substitution for CFC-11 were reviewed.
简述了CFC - 11对大气臭氧层破坏的基本原理，介绍了聚氨酯cfc - 11替代的不同途径及发展趋势，评价了CFC - 11替代的经济特性。
CFC-11 is prohibited to be used, So old PU blowing system must be replaced. Because of many factors, it is not a simple process that PU system is selected in the refrigerator and refrigerator-cabinet.
由于禁止使用CFC - 11，所以原有的聚氨酯发泡系统必须被替代，但是对于冰箱和冷柜隔热用聚氨酯系统的选择涉及诸多因素，因此并不是一个简单的过程。
It contained two parts: one was the determination of Cl-content by Oxygen Bomb Combustion-Ion Chromatography while the material was burnt, another one was the determination of CFC-11 content by GC-MS.
聚氨酯硬泡中的CFC - 11测定包含两部分：一是通过氧弹燃烧-离子色谱法测定材料燃烧后的氯离子含量，另一部分是用气相色谱-质谱联用法测定材料燃烧后CFC - 11的含量。
It contained two parts: one was the determination of Cl-content by Oxygen Bomb Combustion-Ion Chromatography while the material was burnt, another one was the determination of CFC-11 content by GC-MS.
聚氨酯硬泡中的CFC - 11测定包含两部分：一是通过氧弹燃烧-离子色谱法测定材料燃烧后的氯离子含量，另一部分是用气相色谱-质谱联用法测定材料燃烧后CFC - 11的含量。
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