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- glycol chain extender 扩链剂乙二醇
- And two new segmented poly(urethaneureas) were prepared from poly(tetramethylene glycol)(PTMG) or polyadipate of 1,4 butanediol(PBA), MDI and Urea(as chain extender). 通过对聚氨酯脲及其硬段模型化合物的结构与性能的研究，发现这种体系有高相分离程度、高氢键密度的特点，并暗示了三维氢键网络结构的存在。
- The dispersive and stable aqueous polyurethane emulsion was prepared by IPDI,DMPA,poly(propylene glycol) as raw material and EA as chain extender without solvent. 以IPDI、聚酯/聚醚二元醇和二羟甲基丙酸为主要原料,乙二胺为扩链剂,采用无溶剂法成功制得分散良好、贮存稳定的水性聚氨酯乳液。
- Polyurethane(PU) elastomers based on low unsaturated polypropylene glycol(TDB), diisocyanate(MDI or TDI)and chain extender(1,4-BDO or MOCA) were prepared. The mechanical properties of PU elastomers were studied. 研究了以不同相对分子质量的低不饱和度聚醚多元醇、二异氰酸酯(MDI,TDI)和扩链剂(1,4 BDO,MOCA)为原料制备PU弹性体的力学性能。
- A new gelling agent was developed by using acrylamide(AM) and 2-acrylamido2-methylpropane sulfonic acid(AMPS) as main monomers,polyethylene glycol diacrylate ester(PEGDA) as chain extender. 以丙烯酰胺(AM)和2-丙烯酰胺基-2-甲基丙烷磺酸(AMPS)为主要单体,以聚乙二醇二丙烯酸酯(PEGDA)为扩链剂,研制了一种注酸时稠化能力强、返排时黏度低的新型酸液稠化剂。
- Polyether glycol of homony functionality but different molecular weight,TDI and chain extender were used to sythesize polyurethane(PUR) elastomers,and the PUR elastomers were characterized. 采用相同官能度、不同分子量的聚醚多元醇和甲苯二异氰酸酯(TDI)及扩链剂反应合成了系列聚氨酯(PUR)弹性体,同时对所合成的PUR弹性体进行了表征。
- The food chains extend to the abyss. 食物链一直延伸到深渊。
- The binding site was in the peripheral rail fence of polyethylene glycol chain for CAS and in alkyl inner nuclear of miclle for TB. 并通过比较染料在不同溶剂的吸收光谱 ,推断了表面活性剂与染料相互作用点的位置 ,证明了极性较大的 CAS位于聚氧乙烯链的外围“栅栏”中 ,而极性较小的 TB则位于胶束的烷基“内核”
- Fiber Structure Development in Bicomponent Fibers of Recycled PET Modified with a Chain Extender. 扩链剂改性再生PET双组分纤维的结构。
- Polyurethane elastomers based on glycols(PEA,PPG PTMG), diisocyanate(TDI) and chain extender(E-300) were prepared. 以多元醇(PEA,PPG,PTMG),PDI,E 300为原料,制备了PU弹性体。
- The chain extender was analysed by infrared spectrometry,mass spectrometry and element analysis etc. 用质谱、红外光谱、元素分析等对该扩链剂结构进行了分析。
- The influences of the types and content of chain extender on the performance of emulsion were analyzed. 采用预聚体分散法合成含氟聚氨酯乳液,并分析了扩链剂种类及含量对乳液性能的影响。
- Then, isophorone diisocyanate (IPDI) as hard segments and 1,4-butanediol as chain extender were added to prepare thermoplastic polyurethane (TPU). 然后，以异佛尔酮二异氰酸酯（IPDI）为硬段，1,4-丁二醇为扩链剂，得到了硅油改性热塑性聚氨酯（TPU）。
- By the pre-polymer and chain extender afterwards process, the product was synthesized with the performance of no toxicity and low viscosity. 该产品采用预聚体法和后扩链合成工艺，使该产品具有环保无污染、产品粘度小等特点；
- Application of non polyurethane,polyester polyurethane,polyether polyurethane and chain extender on the melt spinning of elastic fiber is introduced . 介绍了非聚氨酯类、聚酯型聚氨酯类、聚醚型聚氨酯类聚合物及扩链剂在熔纺弹性纤维上的应用。
- Effect of chain extenders on PVB resin and film was studied. 讨论了扩链剂的加入对PVB树脂及薄膜性能的影响。
- The soft segments based on polyether, and functional chain extender PDSA would be resulted into the better degree of dispersion on the nanocomposites. 由实验结果显示，奈米复合材料的分散性取决于有机黏土含量、聚胺酯软链段及链延长剂的种类。
- The results showed it might raise the heat st resistance of casting polyurethane to use the compound chain extender of MOCA ad TMP and quartz powder. 试验结果表明：MOCA与TMP并用作为交联剂及填加无机耐热填料石英粉可提高聚氨酯耐热性。
- By intercalating chain extender, the self emulsifying anionic waterborne polyurethane emulsions which have the block structure have been prepared. 通过自乳化聚合引入低分子扩链剂制得具有嵌段结构的阴离子型水性聚氨酯乳液。
