This article is a study of methylene chloride as a substitute for trichloro-fluoromethane in producing flexible polyurethane foam.
讨论了用二氯甲烷替代一氟三氯甲烷进行软氨酯泡沫塑料生产。
This article is a study of methylene chloride as a substitute for trichloro-fluoromethane in producing flexible polyurethane foam.
讨论了用二氯甲烷替代一氟三氯甲烷进行软氨酯泡沫塑料生产。
The hydroxyl value of epoxy-containing polyester was determined by analyzing acetification principle and using acetyl chloride as acetifier and methylene chloride as solvent.
通过对其理分析,选用乙氯作剂、二氯甲烷作溶剂,测定含环氧基酯羟值。
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