Otherwise, phase separation degree of WPU film from different soft segment content was discussed.

另外还研究了不同软段含量的聚氨酯材料在微相分离程度的差异。

Three types of WPU formulations were studied and the performance of the products were tested and characterized.

本课题研究了三种类型的配方，并对其进行了性能测试和表征。

Mixing the product with hydroxyl WPU to formulate the paint. The mechanical properties of the films were studied.

用合成的产物与含羟基水分散聚氨酯树脂进行配漆，并对漆膜性能作了初步探讨。

The results of impact experiments show that impact strength of PF is improved and improvement lever is related to WPU;

冲击实验结果表明二种PU预聚物均能提高PF的冲击强度，增韧效果与PU质量分数WPU有关；

Experiments proved that coating RDX by polymerization-depositing WPU latex can enhance the desensitization performance of RDX.

实验证明：水性聚氨酯乳液聚合破乳方法包覆rdx，能够显著提高RDX的钝感性能。

Increasing the solid content of WPU is one of the most effective methods to improve the drying properties of WPU adhesives for shoes.

提高固含量是提高水性聚氨酯鞋用胶粘剂干燥性能及其它性能的最有效的途径之一。

A novel modification method, which introduces acrylic acid groups and organosilicon groups in to the WPU molecular chain, was adopted in the experiment.

尝试了一种向聚氨酯分子链中引入丙烯酸和有机硅基团对水性聚氨酯进行改性的新方法。

The reaction between -NCO and water, dispersion of polyisocyanates in polyols, and complete diffusion among different kinds of molecules are key problems to be solved in 2k-WPU.

NCO与水的反应、多异氰酸酯难于在多元醇中的分散均匀以及组份间分子链扩散交联不充分，是研究水性双组份聚氨酯的关键问题。

The raw materials and methods of synthesizing the water - soluble polyurethane (WPU) were discussed in detail. The primary application of the (WPU) in textile, dope, bonding, etc was summarized.

论述了制备水性聚氨酯所用的原料和制备方法，总结了水性聚氨酯在纺织、涂料、粘合剂等行业中的应用。

There exist many disadvantages of the single WPU emulsion, such as poor self-thickening, low solid content, weak water resistance, lower mechanical strength compared to acrylic resin and high cost.

单一的水性聚氨酯分散体存在自增稠差、固含量低、耐水性差、机械强度不如丙烯酸树脂等缺点，而且成本较高。