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- A method for determining hydroxyl value of epoxy-containing polyester,namely acetyl chloride method is introduced. 介绍了一种含环氧基聚酯的羟值测定方法,即乙酰氯法。
- The mono-component phthalate agent method is not stable for determining hydroxyl value of wood solution. 在使用单组分酰化试剂测定木材溶液羟基值时,数据稳定性差。
- The acid value, hydroxyl value and saponification value of the products were determined and compared by chemical analysis methods. 经化学方法分析了系列聚酯增塑剂的酸值、羟值和皂化值。
- The hydroxyl value analysis of acrylate-styrene copolymcr solution by usillg acetylchloride as an acetylating agent is discussed. 结合对体系所含双氧水浓度的测定，以乙酰氯法测量了合双氧水的丙烯酸酯-苯乙烯共聚物溶液体系的聚合物的羟值。
- The hydroxyl value of epoxy-containing polyester was determined by analyzing acetification principle and using acetyl chloride as acetifier and methylene chloride as solvent. 通过对其酰化原理分析,选用乙酰氯作酰化剂、二氯甲烷作酰化溶剂,测定含环氧基聚酯的羟值。
- Adopt in g the method to mensurate acid number,hydroxyl value and saponification value i n processing lubricant oil determines the contents of additives in lubricants. 采用测定工艺润滑油中酸值、羟值、皂化值的方法来测定润滑油中添加剂的含量。
- Hydroxyl values of straw alkali lignin and modified lignin resin were determined by potentiometric titration in suitable composite acylation system. 选用合适的复合酰化体系,通过电位滴定,测定了工业碱木质素及其改性树脂的羟值。
- Keywords polyglycerol;hydroxyl value;determination; 聚甘油;羟值;测定;
- Acylation Methods of Determining the Hydroxyl Value of Polyether 浅谈酰化法测定聚醚多元醇羟值
- Standard Test Method for Hydroxyl Value of Fatty Oils and Acids 脂肪油和脂肪酸羟基值的试验方法
- A little crack detracts from the value of the vase. 小小的裂痕减损那个花瓶的价值。
- Testing method for hydroxyl value of fatty oils and acids 脂肪酸羟值测定方法
- Improvement on measuring hydroxyl value of nonionic surfactant 非离子表面活性剂羟值测定方法的改进
- Keywords DBE;Free NCO content;Active hydroxyl value; 游离NCO含量;活性羟基值;
- I set a high value on his advice. 我认为他的忠告很有价值。
- Keywords polyurethane;polyisocyanate;hydroxyl value;acid value; 聚酯型聚氨酯;多异氰酸酯;羟值;酸值;
- The value of your assistance is inestimable. 阁下鼎立相助之功不可胜言。
- high-solid low-viscosity resin with high hydroxyl value 高固高羟低黏树脂
- I am doubtful about the value of your proposal. 我怀疑你的提议是否有价值。
- I can take nothing you say at face value. 我不会把你说的话当真的。
