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- The effects of reaction temperature,reaction time,epoxy value and dosages of diethanolamine and catalyst on the reaction between epoxidized polybutadiene(EPB) and diethanolamine were investigated. 以二乙醇胺为胺化剂,以酚类为催化剂制备了环氧聚丁二烯(EPB)的胺化反应产物,研究了反应温度、反应时间、催化剂用量、胺用量及环氧值等因素对产物胺值的影响。
- Their chemical structure were characterized with FTIR spectroscopy, ESI-MS and GPC analyses.The epoxy value, viscosity, and chloric content of DCPD-modified epoxy resin were examed. 优化了合成反应条件，包括原料配比、烷基化反应温度、催化剂种类及脱色剂的选择，采用GPC、ESI-MS和FT-IR对四种树脂的结构进行了表征，检测了所合成树脂的环氧值、粘度及氯含量等性能指标。
- Improved method for determining epoxy value 环氧值测定方法的改进
- Keywords epichlorohydrin;epoxy resins;epoxy value; 环氧氯丙烷;环氧树脂;环氧值;
- Determination of the epoxy value of plasticizers (acetone-hydrochloride method) 增塑剂环氧值的测定(盐酸-丙酮法)
- A little crack detracts from the value of the vase. 小小的裂痕减损那个花瓶的价值。
- Keywords glycerin epoxy resin;epoxy value;epoxy chloropropane;adhesive; 甘油环氧树脂;环氧值;环氧氯丙烷;粘合剂;
- I set a high value on his advice. 我认为他的忠告很有价值。
- The value of your assistance is inestimable. 阁下鼎立相助之功不可胜言。
- 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。
- The experience gained will be of great value to us. 所取得的经验对我们有很大价值。
- A bauble is a showy ornament of little value. 廉价珠宝是华而不实的装饰品。
- Stamps can be redeemed at face value. 印花可以按面值换回现金。
- He puts a high value on integrity. 他对正直的评价很高。
- The goods were bid up far beyond their real value. 这些货物的价格被炒得远远超过了它们的实际价值。
- Last year's exports exceeded imports in value. 去年的出口价值超过进口。
- Stocks generally lowered in value. 股票普遍下跌。
- The table d'hote menu offers good value. 定餐菜单上列出的都很实惠。
- The excess epoxy forms the "compatibility layer". 过剩的环氧形成“相容层”。
