The effects of molecular weigh (Mn) of PEG, the usage of cross link agents, solvents and water in the solution on the moisture permeation of PU membrane have been studied.
研究了PEG分子量、交联剂用量、制膜溶剂及预聚体溶液中水含量对膜透湿性的影响。
As a result, n-butylamine as chain-extension agent decreases the inter action of molecular and increases the elongation of PU to 1400%.
结果表明，以正丁胺为扩链剂，可以减小聚氨酯分子间的作用力，提高分子的柔顺性，其断裂伸长率可达1400％以上；
The effects of the use of high molecular weight Polyether polyol on the mechanical properties of PU sealant have been studied in one step synthesis of one component PU elastic sealant.
介绍单组份聚氨酯弹性填缝剂的一步法合成中高分子量聚醚多元醇的应用及其对填缝剂性能的影响。
The effect of 13X zeolite molecular sieves on cured property of two -component PU adhesive was studied.
研究了13X沸石分子筛对双组分聚氨酯胶粘剂固化性能的影响。
The study on high performance PU elastomers was introduced in this paper. The properties of all kinds of PU elastomers prepared by high molecular weight polyether, PPDI, NDI, HTPB was discussed.
本文介绍了高性能聚氨酯弹性体的研究概况，讨论了高分子质量聚醚、PPDI、NDI、HTPB等为主要原料制备的各种聚氨酯弹性体的性能。
The study on high performance PU elastomers was introduced in this paper. The properties of all kinds of PU elastomers prepared by high molecular weight polyether, PPDI, NDI, HTPB was discussed.
本文介绍了高性能聚氨酯弹性体的研究概况，讨论了高分子质量聚醚、PPDI、NDI、HTPB等为主要原料制备的各种聚氨酯弹性体的性能。
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