对造纸黑液及酸析木质素的磺化进行了研究,得出了黑液及酸析木质素磺化的工艺条件。
A study on the sulfonation condition of lignin and paper-making black liquor was made, and the conditions were determined.
大量实验证明以风化煤为原料采用硝酸氧化降解后再磺化的方法生产混凝土减水剂的工艺是合理的。
The experiments have shown that the technology of oxidation degradation with nitric acid and sulfoxidation with sodium sulphite to produce water-reducer of cement with decomposed coal is available.
综述了磺化聚酰亚胺作为质子交换膜燃料电池中膜材料的研究概况。
This paper reviews the research progress in sulfonated polyimidesas materials for proton exchange membrane fuel cell.
研究了交联壳聚糖磺化衍生物的制备方法。
The preparation of cross linked sulfonated Chitosan derivatives has been investigated.
实验研究了磺化碱木素用作混凝土减水剂的性能。
Performance of sulfonated alkali lignin used as water reducer for concrete was experimented.
通过控制这些因素提高了密胺树脂高效减水剂的羟甲基化率和磺化率,改善了产物性能。
By controlling those parameters, the hydroxymethylated and sulfonated ratios of melamine resin superplasticizer were enhanced, the performances of product also improved.
结果表明,较合适的溶剂和萃取剂分别为磺化煤油和三烷基氧膦。
The results showed that the proper organic solvent and extractant were sulfonated kerosene and trialkyl phosphine oxide.
同时初步探索了磺化聚醚砜(SPES)改性PES中空纤维膜的制备。
Moreover, the sulfonated PES (SPES) was blended with PES to improve the hydrophilicity of PES membranes.
研究了新型阻垢分散剂磺化苯乙烯共聚物ts—616的产品性能,与目前国外著名阻垢分散剂性能进行了比较。
The performance of a new scale dispersing inhibitor-sulfonated styrene copolymer ts-616 was studied and compared with that of famous foreign scale dispersing inhibitors.
综述了磺化聚酰亚胺作为质子交换膜燃料电池中膜材料的研究概况。
This paper reviews the research progress in sulfonated polyimides (SPI) as materials for proton exchange membrane fuel cell.
介绍了聚乙烯、氯化聚乙烯及氯磺化聚乙烯的生产技术、加工应用进展及发展前景。
The production techniques, progress in processing and application and development prospects of polyethylene, chlorinated polyethylene and chlorosulfonated polyethylene are introduced.
研究了不同金属离子及胺中和的磺化丁基橡胶离聚体的熔融流动性及力学性能。
Melt flow properties and mechanical properties of sulfonated butyl rubber ionomers neutralized by different metallic cations and amines were studied.
实验分析了作为配伍材料的磺化褐煤对磺甲基酚醛树脂质量评价的影响。
The influences of different sulfonated lignite as compatible material on quality estimation of sulfomethyl phenol formaldehyde resin(SMP) were analyzed by experiments.
试验研究了褐煤制磺化煤的制备方法及磺化温度、磺化时间、酸煤比等因素对产物磺化煤的离子交换活性的影响。
The preparation methods of sulfonated coal and factors such as sulfonation time, sulfonation temperature and ratio of acid to coal etc.
综述了磺化聚酰亚胺用于质子导电材料的研究进展,讨论了各种不同磺化二胺体系的独特优势以及存在的问题。
Therefore, great interests are aroused by the study of sulfonated polyimide membranes. Advance in proton conducting materials based on sulfonated polyimides is reviewed in this paper.
本文用gpc法测定了磺化聚砜的分子量分布,它是以特性粘数的分布来表示的。
The molecular weight distribution of sulfonated polysulfone, expressed in terms of intrinsic viscosity distribution, has been determined by GPC method.
本文采用非均相磺化反应方法,制备了低磺化度的磺化聚砜。
In this paper we studied out a heterogeneous sulfonation method for preparing sulfonated polysulfone with low sulfonation values.
结果表明,预处理过程中愈创木基易于磺化和溶出,木素中有新的共轭羰基和醌型结构产生。
The results showed that during the chemical pretreatment the guaiacyl unit was more readily to be sulfonated and dissolved, and there were new conjugated carbonyl and quinoid structure formed.
磺化油STO、硫酸化牛蹄油和硫酸化蓖麻油加脂的坯革伸长率较大。
The elongations of the leathers fatliquored by the sulfonated oil STO, sulfated castor oil and sulfated neatsfoot oil were better .
采用一步法合成了一种新的磺化聚酰亚胺(SPI),并制备成膜。
A novel sulfonated polyimide was modified by one-step method. Then the SPI membranes were fabricated.
用吸收光谱和荧光光谱研究了不同磺化程度酞菁与不同胶束间的相互作用并计算了结合常数。
The interaction between zinc phthalocyanines with different sulfonation degree and three types of micelles were investigated by absorption and fluorescence spectra.
在磺化过程中并没有观察到明显的降解现象。
No significant polymer degradation was observed in the post-sulfonation processes.
本文合成了三种不同磺化度的聚合物。
Three kinds of polymers with different degree of sulfonation are synthesized in this thesis.
对液体三氧化硫磺化技术的特点进行了概述。
The sulfonation technology of the liquid sulfur trioxide was also reviewed.
对我国三氧化硫磺化技术的研究开发进行了回顾。
The research and development of Chinese sulfur trioxide sulfonation technology is reviewed.
SPS的相对分子质量和磺化度对水泥净浆的性能几乎没有影响。
The molecular weight and sulfonation degree of SPS have little effect on the cement paste properties.
研究了磺化度和增塑剂对增塑体系的离子导电性的影响。
The influence of sulfonation degree and plasticizer to the ionic conduction of the systems was examined.
以废聚苯乙烯(WPS)泡沫为原料,采用浓硫酸和发烟硫酸两种磺化方法制备性能良好的砼减水剂。
The PS water reducing agent, which is very effective for concrete, has been made from waste poly styrene(WPS) by sulfuric acid of fuming sulfuric acid sulfonation process.
通过对芦苇造纸黑液氧化、接枝磺化合成工艺,研制出具有引气性能的高效减水剂,并对其性能进行了研究。
An air entraining high range water reducing agent was synthesized by way of oxidization and grafted - sulfonation of black liquor of reed pulp (sodium lignosulfonate) and its performance was studied.
通过对芦苇造纸黑液氧化、接枝磺化合成工艺,研制出具有引气性能的高效减水剂,并对其性能进行了研究。
An air entraining high range water reducing agent was synthesized by way of oxidization and grafted - sulfonation of black liquor of reed pulp (sodium lignosulfonate) and its performance was studied.
应用推荐