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1)  diol chain-extension agent
二醇扩链剂
1.
The diol chain-extension agent is an important factor influencing the physical performance of TPU.
二醇扩链剂是影响TPU物理性能的一个重要因素。
2)  glycol chain extender
扩链剂乙二醇
1.
Polyurethane microcelluar elastomer are made from high activity polyether polyatomic phenol,polyisocyanate,glycol chain extender,catalysts and all components are first mixed evenly in high-speed agitation,then the mixture is poured into the mold one time,the effect of glycol use level on the process and properties of polyurethane microcelluar elastomers was studied.
结果表明,随着扩链剂乙二醇量的增加,聚合反应体系乳白时间和凝胶时间逐渐缩短,聚氨酯微孔弹性体材料密度略有增加,拉伸强度和硬度明显提高,断裂伸长率明显下降。
3)  diamine chain extender
二胺扩链剂
1.
The effect of diamine chain extender 4,4\'-methylenedianiline (MDA) on structure and properties of nylon 6-polyurethane block copolymer were studied.
研究二胺扩链剂二氨基二苯甲烷(MDA)对尼龙6-聚氨酯(Nylon6-PU)嵌段共聚物结构与性能的影响。
4)  chain-extender
扩链剂
1.
Effect of glycol-chain-extender on polyether-polyurethane elastomer properties;
二醇扩链剂对聚醚聚氨酯弹性体性能的影响
2.
Influence of Chain-extension Method and Chain-extender Content on Property of PU/PVC Composite Resin;
扩链方式及扩链剂用量对PU/PVC复合树脂性能的影响
3.
The pre-polyurethane was synthesized with hexamethylene diisocyanate(HDI) and polypropylene oxide glycol(PPG) as materials and dimethylolpropionic acid(DMPA) as hydrophilic chain-extender,then chain-extended by different chain-extenders,emulsified in water to prepare WPU emulsion,then cross linked with crosslinking agent to form WPU film.
以六亚甲基二异氰酸酯(HD I)和聚环氧丙烷醚二醇(PPG)为主要原料,二羟甲基丙酸(DMPA)为亲水性扩链剂合成了聚氨酯预聚体,再经过不同小分子扩链剂扩链、乳化制备水性聚氨酯(WPU)乳液,然后与自制交联剂HM交联成膜。
5)  chain extender
扩链剂
1.
Application of chain extender in PVC resin production;
扩链剂在PVC树脂生产中的应用
2.
Effects of different chain extenders on polyurea viscosity and polymer state;
不同扩链剂对聚脲黏度和聚合状态的影响
3.
Study on preparation of waterborne polyurethane with sulfonic type hydrophilicm onomer as chain extender;
采用磺酸型亲水单体作为扩链剂制备水性聚氨酯的研究
6)  extender [英][iks'tendə]  [美][ɪk'stɛndɚ]
扩链剂
1.
Studies on the extender selecting of shape memory polyurethane based liquidated MDI;
液化MDI基形状记忆聚氨酯扩链剂的选择研究
2.
The influence of chain extenders on the reaction rate of polyether-urethane prepolymers;
扩链剂对TDI封端聚醚预聚物反应速度的影响
3.
The effects of extenders on self-emulsify Polyurethane emulisons;
扩链剂对自乳化聚氨酯乳液膜性能的影响
补充资料:扩链剂
分子式:
CAS号:

性质:又称链增长剂,扩链剂。是指能与线型高分子化合物链上的官能团作用而使分子链扩展的物质,有多元醇类、多元胺类等。如多元醇能与聚氨基甲酸酯链上的异氰酸酯官能团作用而使分子链扩展。在化纤工业中,对某种具二官能团化合物专称链扩展剂,系指能和具活性端基的预聚体作用,可生成线性嵌段共聚物的某些低分子物;如二元胺、二元醇和二元酸等。在聚氨酯弹性纤维的生产中,它被专用于与两端含异氰酸基的预聚物(聚酯或聚醚)反应,使原先不很长的预聚物分子链增长,扩展成为具嵌段结构的大分子长链,故称其为链扩展剂,也称链增长剂。生产中常用的有:二元胺(各种脂肪族、环脂族和芳脂族的二胺均可)和二元醇(如1,4-丁二醇);一般应用于纺丝前成纤高聚物制备的过程中,但也有用于聚氨酯成纤高聚物的纺丝过程之中(如反应纺丝法)。

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