1) prereacted raw batch
预反应料
2) alkali-aggregate reaction prevention
碱-集料反应预防
3) prepolymerization reaction
预聚反应
1.
A kind of waterborn polyurethane is synthesized by the reaction of diisocyanate with polyethylene glycol at the presence of end capping reagent;The factors that affect the blocking reaction and prepolymerization reaction were investigated.
以二异氰酸酯、聚醚多元醇为原料,利用二异氰酸酯和聚乙二醇在封端剂的存在下合成了一种水性聚氨酯;探讨了影响预聚反应和封端反应的因素。
2.
The influence of reaction temperature, used solvents and catalysts on the prepolymerization reaction was investigated.
研究了反应温度、溶剂、催化剂及用量对预聚反应的影响。
3.
The results indicated that the optimum reaction temperature of prepolymerization reaction was 75℃,the maximum reaction temperature of prepolymer was between 60℃ and 80℃,the quantity of hydrophilic chain extender was equal to 5% of feedstocks.
以甲苯二异氰酸酯(HDI)、聚酯多元醇和二羟甲基丙酸(DMPA)为主要原料合成水性聚氨酯固色剂,研究了反应温度、聚酯多元醇、有机溶剂、亲水扩链剂等对预聚反应的影响。
4) prepolymerization
预聚反应
1.
Research of reaction conditions on prepolymerization of polyester anionic waterborne polyurethane emulsion;
阴离子水性聚酯聚氨酯乳液预聚反应条件的研究
5) Pre-Reactor
预反应器
1.
Retrofit of the Electric Heating System in a Pre-Reactor;
预反应器电加热系统的技术改造
6) pre-reaction
预反应
1.
How to smooth away the layer phenomenon of pre-reaction solution of polychoroprene adhesive;
怎样克服氯丁胶粘剂预反应液的分层现象及分层后的补救办法
补充资料：135kA中间下料预焙阳极铝电解槽(抚顺铝厂)
135kA中间下料预焙阳极铝电解槽(抚顺铝厂)
赢 135kA中间下料预焙阳极铝电解槽(抚顺铝厂)
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条