• 目的多元多元缩合定量分析

    Objective:Quantitative analysis of four polybasic alcohols and condensation alcohols.

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  • 开发了一添加控制的新的一步多元法。

    A novel one-step polyol process by using control agents is reported.

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  • 主要成份玫瑰精华天然保湿因子多元醇

    Main compositions: Rose extract, natural moisture factor, polylol.

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  • 研究结果工业规模分离多元提供理论依据。

    The result of the paper provide a basis for the industrial scale separation of polyols.

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  • 主要成份:金精华天然保湿因子多元醇

    Main compositions: Witch hazel extract, natural moisture factor, polylol.

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  • 采用逐步升高真空度方法合成了粘度聚酯多元

    The low viscosity polyether polyol was synthesized under raising the vaccum degree step by step .

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  • 功能多元醇一些积极羟基每个团体分子

    The functionality of the polyether polyol is determined by the number of active hydroxyl groups per molecule.

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  • 用凝胶渗透色谱测定聚醚多元相对分子质量及其分布

    Gel Permeation Chromatography was used to determine the distribution and average molecular weight of polyether polyols.

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  • 利用陶瓷技术处理高浓度聚醚废水回收大分子聚醚多元醇

    The ceramic membrane technique is used to treat highly concentrated polyether wastewater and reclaim macromolecular polyether glycol.

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  • 自产聚醚多元为主要原料,试制成回弹块状聚氨酯

    High resilience polyurethane slabstock foam based on self-produced polyether polyol was prepared.

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  • 考察了多元种类配比、异氰酸指数等因素材料性能影响

    Influence of type and ratio of polyol, and NCO index on the properties of the adhesives were discussed.

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  • 异戊烷用量多元醇催化剂品种进行了选择试验

    The amount of isopentane and water, the kinds of polyethers and catalysts were selected.

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  • 他们但是一些替代品或是多元醇例如木糖山梨减少蛀牙

    They said a group of substitutes of sugar alcohols or polyols including xylitol and sorbitol can reduce the risk of cavities.

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  • 指出生物质多元醇成为今后合成可再生燃料化学品等的新型平台分子

    It is thus believed that the biomass-derived polyols will become new bio-platform molecules for renewable fuels and chemicals.

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  • 叙述了用于皮革涂饰剂生产多元醇制备皮革涂剂生产上的应用

    Preparation of Polyether polyol and its applications in the production of leather finishing have been prescnted in this article.

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  • 新型呋喃多元作为合成聚氨酯多元醇,所制得的聚氨酯及其制备方贩。

    Novel furan polyols, use thereof as polyols in formation of polyurethanes, polyurethanes thus obtained and process for preparing same.

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  • 实践证明多元组分(A)与异氰酸酯组分(B液)配比生产中的关键

    The practise showed that the key in production is the ratio of liquid a (multi - glycol) to liquid B (isocyanates).

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  • 研究结果表明多元醇助磨多元醇胺类助磨剂,都能显著提高水泥粉体度;

    The results indicate that both kinds of grinding aids increase the powder fineness and the Blain's values considerably.

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  • 讨论不同氰酸酯结构、不同多元醇体系、不同合成方法聚氨酯弹性体影响

    This paper discusses on the influence of different structures of isocyanate, different system of polyether-polybasic alcohol and different synthetic methods on polyurethane elastomers.

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  • 本文概率统计动力学方法,推导多元醇的丙烯酸酯酯化分布函数及其计算公式

    By using probability statistics and dynamics, this paper derived the esterification degree distribution function and its calculation formula for polyol-acrylate reaction.

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  • 本文研究目的是制备聚氨酯多元醇水分散体重点讨论水分散体结构性能之间关系

    This paper has prepared the polyurethane dispersions with hydroxyl groups, paying attention on the relation of structure and properties of waterborne dispersions.

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  • 研究聚醚多元官能相对分子质量对单组分聚氨酯泡沫填缝(密封)胶性能影响

    The effects of functionality and molecular weight of polyether polyols on the properties of one component polyurethane foam sealant were studied.

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  • 探讨聚酯多元醇泡沫稳定剂、发泡剂催化剂原料硬质聚氨酯泡沫塑料制备影响

    The influence of some raw materials such as polyester the uniformity vesica nt foams and catalysts to the preparation of rigid polyurethanes foam is also discussed.

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  • 探讨聚酯多元醇泡沫稳定剂、发泡剂催化剂原料硬质聚氨酯泡沫塑料制备影响

    The influence of some raw materials such as polyester the uniformity, vesicant foams and catalysts to the preparation of rigid polyurethanes foam is also discussed.

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  • 探讨聚酯多元醇泡沫稳定剂、发泡剂催化剂原料硬质聚氨酯泡沫塑料制备影响

    The influence of some raw materials such as polyester the uniformity, vesicant foams and catalysts to the preparation of rigid polyurethanes foam is also discussed.

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