液体松香脂由松香与多元醇酯化而成。
Liquid rosin resin is made from the gum rosin through esterification with polylol.
目的：对多元醇及多元缩合醇的定量分析。
Objective:Quantitative analysis of four polybasic alcohols and condensation alcohols.
开发了一种添加控制剂的新的一步多元醇法。
A novel one-step polyol process by using control agents is reported.
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.
研究结果为工业规模分离多元醇提供了理论依据。
The result of the paper provide a basis for the industrial scale separation of polyols.
主要成份：金缕梅精华、天然保湿因子、多元醇。
Main compositions: Witch hazel extract, natural moisture factor, polylol.
用凝胶渗透色谱测定聚醚多元醇的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.
利用陶瓷膜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.
以自产聚醚多元醇为主要原料，试制成高回弹块状聚氨酯软泡。
High resilience polyurethane slabstock foam based on self-produced polyether polyol was prepared.
考察了多元醇种类及配比、异氰酸酯指数等因素对材料性能的影响。
Influence of type and ratio of polyol, and NCO index on the properties of the adhesives were discussed.
对异戊烷及水的用量、聚醚多元醇及催化剂的品种进行了选择试验。
The amount of isopentane and water, the kinds of polyethers and catalysts were selected.
他们说，但是一些替代品或是多元醇例如木糖醇和山梨糖醇会减少蛀牙。
They said a group of substitutes of sugar alcohols or polyols including xylitol and sorbitol can reduce the risk of cavities.
指出生物质多元醇将成为今后合成可再生燃料和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.
叙述了用于皮革涂饰剂生产上的聚醚多元醇制备及在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.
新型呋喃多元醇，作为合成聚氨酯的多元醇，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.
实践证明：多元醇组分(A液)与异氰酸酯组分(B液)的配比是生产中的关键。
The practise showed that the key in production is the ratio of liquid a (multi - glycol) to liquid B (isocyanates).
研究结果表明：多元醇类助磨剂和多元醇胺类助磨剂，都能显著提高水泥粉体的细度；
The results indicate that both kinds of grinding aids increase the powder fineness and the Blain's values considerably.
讨论了不同异氰酸酯结构、不同聚醚多元醇体系、不同合成方法对聚氨酯弹性体的影响。
This paper discusses on the influence of different structures of isocyanate, different system of polyether-polybasic alcohol and different synthetic methods on polyurethane elastomers.
本文用概率统计和动力学方法，推导了多元醇的丙烯酸酯酯化度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.
合成了不饱和聚酯多元醇，进而采用化学共混法合成了室温固化的聚氨酯聚苯乙烯共混物。
The room temperature curing polyurethane-polystyrene blends were synthesized with a synthesized unsaturated polyester-polyol by chemical blending method.
本文研究目的是制备出聚氨酯多元醇水分散体，重点讨论水分散体结构与性能之间的关系。
This paper has prepared the polyurethane dispersions with hydroxyl groups, paying attention on the relation of structure and properties of waterborne dispersions.
研究了聚醚多元醇的官能度及相对分子质量对单组分聚氨酯泡沫填缝（密封）胶性能的影响。
The effects of functionality and molecular weight of polyether polyols on the properties of one component polyurethane foam sealant were studied.
探讨了聚酯多元醇、泡沫稳定剂、发泡剂及催化剂等原料对硬质聚氨酯泡沫塑料制备的影响。
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.
探讨了聚酯多元醇、泡沫稳定剂、发泡剂及催化剂等原料对硬质聚氨酯泡沫塑料制备的影响。
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.
探讨了聚酯多元醇、泡沫稳定剂、发泡剂及催化剂等原料对硬质聚氨酯泡沫塑料制备的影响。
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.
探讨了聚酯多元醇、泡沫稳定剂、发泡剂及催化剂等原料对硬质聚氨酯泡沫塑料制备的影响。
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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