• 介绍了聚环氧丙烷高抗收缩的收缩机理制备方法,并且进行了抗压强度及抗拉强度的性能测试

    The reaction mechanism, method of synthesis and property testing of polyoxypropylene series compounds as shrinkage reducing agents in cement concrete are introduced in this paper.

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  • 聚环氧丙烷—二甲胺PAC复配,不仅使絮凝效果更佳,而且降低处理成本

    Using polyamine flocculants with PAC, not only shows better flocculation performance, but also can lower the water treatment cost.

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  • 研究由对硝基苯基染料聚环氧丙烷经大分子反应合成偶氮苯醚的二阶非线性光学特性。

    Some novel copolyethers containing azo benzene chromophors as side chains have been synthesized by a nucleophilic reaction of various azo dyes with polyepichlorohydrin.

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  • 结果表明阳离子度、分子量以及合物的结构影响聚环氧丙烷—二甲胺凝效果重要因素。

    The experimental results show that the cationicity, the molecular weight and the structure have a great effect on the flocculation efficiency of polyamine flocculants.

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  • 综合研究结果表明聚环氧丙烷二甲胺一种高效多功能的有机絮凝剂

    The experimental results show that polyamine polymers are organic flocculants with high performance and multi-function.

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  • 纤维素纤维环氧丙烷胺化物改性,并用直接染料、反应性染料中性染色。

    Cellulosic fibres were treated with cationic modifying agents of PECH-amine and dyed with direct and reactive dyes without salts under neutral conditions.

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  • 纤维素纤维环氧丙烷胺化物改性,并用直接染料、反应性染料中性染色。

    Cellulosic fibres were treated with cationic modifying agents of PECH-amine and dyed with direct and reactive dyes without salts under neutral conditions.

    youdao

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