您的位置：首页 -> 词典 -> 封端法

1) end-capping method 点击朗读

封端法

The end-capping method is to use phenol or amine compound to block the over diisocyanate group in polyurethane so that the diisocyanate regenerator is generated.

封端法是用酚类或胺类化合物将聚氨酯中过量的二异氰酸酯基封闭起来 ,生成二异氰酸酯的再生体 ,在熔纺过程中 ,二异氰酸酯再生体受热分解 ,异氰酸酯基活化 ,产生以脲基甲酸酯基、缩二脲为主的交联体 ,提高产品的耐热性和弹性回复率。

更多例句>>

2) blocked [英][blɔkt] [美][blɑkt] 点击朗读

封端

A series of blocked polyisocyanate adducts has been synthesized, while methyl ethyl ketoxime (MEKO),phenol and ε-caprolactam as blocking agent.

使用甲乙酮肟、己内酰胺及苯酚等不同的封端剂合成了一系列封端型多异氰酸酯加成物。

A series of blocked aliphatic waterborne polyurethane(WPU)emulsions were synthesized with isophoronediisocyanate(IPDI),polyether,dimethylolpropionic acid(DMPA) as materials and NaHSO3 as blocking agent.

以异佛尔酮二异氰酸酯(IPDI)、聚醚多元醇、二羟甲基丙酸(DMPA)为主要原料,采用NaHSO3封端,合成了系列脂肪族水性聚氨酯(WPU)乳液,研究了脂肪族WPU中软段类型、nNCO/nOH、DMPA用量以及NaHSO3用量对乳液及其胶膜相关性能的影响。

更多例句>>

3) termination [英][,tɜ:mɪ'neɪʃn] [美]['tɝmə'neʃən] 点击朗读

封端

The effect of different termination agents on emulsification of the curing agentand,film properties were investigated.

通过对环氧树脂室温固化剂三乙烯四胺进行封端、加成、成盐等一系列改性,制得自乳化水性环氧树脂固化剂;与低相对分子质量的液体环氧树脂混合后,获得了水性环氧树脂涂料。

更多例句>>

4) blocking [英]['blɔkiŋ] [美]['blɑkɪŋ] 点击朗读

封端

The difference of application performances from different blocking conditions and different structures was probed.

采用3种聚醚多元醇与2,4-甲苯二异氰酸酯进行加成反应,然后用亚硫酸氢钠进行封端反应,再加入HCl调pH2~3制得芳香族多氨基甲酰磺酸盐(PCS),探讨了具体封端条件和应用性能随其结构不同的差异,用PCS在不同羊毛织物上作防毡缩试验,其抗弯刚度较小,毡缩率较小,该产品与进口产品相比尚好。

更多例句>>

5) end-capping 点击朗读

封端

The optimum polyol composition,isocyanate group content of the prepolymer and end-capping agent selection were discussed.

以聚醚多元醇和TD I为主要原料,合成预聚体,对预聚体用硅烷进行封端,添加白炭黑、碳酸钙等补强填料,研制了单组分湿气固化密封胶。

Various active agents were used for the end-capping of poly(propylene carbonate)(PPC),and the kinetic of thermal degradation of uncapped and end-capped PPC were investigated.

采用不同封端剂对聚丙撑碳酸酯(PPC)进行了封端,并研究了封端前后PPC的热降解动力学。

更多例句>>

6) end seal 点击朗读

端封

补充资料：端法

端法

端法　　推拿手法名。用两手或一手拿定治疗部位，依据病情从下向上或从外向内用力托起。《医宗金鉴·正骨心法要旨》：“端者，两手或一手擒定应端之处，酌其重轻，或从下往上端，或从外向内托，或直端、斜端也。”本法大都在拔伸后进行。常用于落枕、轻度颈椎错位，以及部分骨折、脱位、伤筋等病症。

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

封端型封端处理羟基封端

硅烷封端封端反应封端结构封端率封端剂密封端面

说明：双击或选中下面任意单词，将显示该词的音标、读音、翻译等；选中中文或多个词，将显示翻译。
	您的位置：首页 -> 词典 -> 封端法 1) end-capping method 封端法 1. The end-capping method is to use phenol or amine compound to block the over diisocyanate group in polyurethane so that the diisocyanate regenerator is generated. 封端法是用酚类或胺类化合物将聚氨酯中过量的二异氰酸酯基封闭起来 ,生成二异氰酸酯的再生体 ,在熔纺过程中 ,二异氰酸酯再生体受热分解 ,异氰酸酯基活化 ,产生以脲基甲酸酯基、缩二脲为主的交联体 ,提高产品的耐热性和弹性回复率。更多例句>> 2) blocked [英][blɔkt] [美][blɑkt] 封端 1. A series of blocked polyisocyanate adducts has been synthesized, while methyl ethyl ketoxime (MEKO),phenol and ε-caprolactam as blocking agent. 使用甲乙酮肟、己内酰胺及苯酚等不同的封端剂合成了一系列封端型多异氰酸酯加成物。 2. A series of blocked aliphatic waterborne polyurethane(WPU)emulsions were synthesized with isophoronediisocyanate(IPDI),polyether,dimethylolpropionic acid(DMPA) as materials and NaHSO3 as blocking agent. 以异佛尔酮二异氰酸酯(IPDI)、聚醚多元醇、二羟甲基丙酸(DMPA)为主要原料,采用NaHSO3封端,合成了系列脂肪族水性聚氨酯(WPU)乳液,研究了脂肪族WPU中软段类型、nNCO/nOH、DMPA用量以及NaHSO3用量对乳液及其胶膜相关性能的影响。更多例句>> 3) termination [英][,tɜ:mɪ'neɪʃn] [美]['tɝmə'neʃən] 封端 1. The effect of different termination agents on emulsification of the curing agentand,film properties were investigated. 通过对环氧树脂室温固化剂三乙烯四胺进行封端、加成、成盐等一系列改性,制得自乳化水性环氧树脂固化剂;与低相对分子质量的液体环氧树脂混合后,获得了水性环氧树脂涂料。更多例句>> 4) blocking [英]['blɔkiŋ] [美]['blɑkɪŋ] 封端 1. The difference of application performances from different blocking conditions and different structures was probed. 采用3种聚醚多元醇与2,4-甲苯二异氰酸酯进行加成反应,然后用亚硫酸氢钠进行封端反应,再加入HCl调pH2~3制得芳香族多氨基甲酰磺酸盐(PCS),探讨了具体封端条件和应用性能随其结构不同的差异,用PCS在不同羊毛织物上作防毡缩试验,其抗弯刚度较小,毡缩率较小,该产品与进口产品相比尚好。更多例句>> 5) end-capping 封端 1. The optimum polyol composition,isocyanate group content of the prepolymer and end-capping agent selection were discussed. 以聚醚多元醇和TD I为主要原料,合成预聚体,对预聚体用硅烷进行封端,添加白炭黑、碳酸钙等补强填料,研制了单组分湿气固化密封胶。 2. Various active agents were used for the end-capping of poly(propylene carbonate)(PPC),and the kinetic of thermal degradation of uncapped and end-capped PPC were investigated. 采用不同封端剂对聚丙撑碳酸酯(PPC)进行了封端,并研究了封端前后PPC的热降解动力学。更多例句>> 6) end seal 端封补充资料：端法端法端法　　推拿手法名。用两手或一手拿定治疗部位，依据病情从下向上或从外向内用力托起。《医宗金鉴·正骨心法要旨》：“端者，两手或一手擒定应端之处，酌其重轻，或从下往上端，或从外向内托，或直端、斜端也。”本法大都在拔伸后进行。常用于落枕、轻度颈椎错位，以及部分骨折、脱位、伤筋等病症。说明：补充资料仅用于学习参考，请勿用于其它任何用途。参考词条封端型封端处理羟基封端

©2011 dictall.com