查询词典 naphthalene

Production and sales companies are the main FDN series naphthalene superplasticizer, water reducer Sulphamate series, aliphatic superplasticizer, various models of efficient retarding superplasticizer, pumping agent, selling all types of expansion agent, retarder, calcium lignosulfonate, wood sodium, sodium, such as glucose.

公司现主要生产销售FDN系列萘系高效减水剂、氨基磺酸盐系列减水剂、脂肪族系高效减水剂、各种型号的高效缓凝减水剂、泵送剂、销售各类膨胀剂、缓凝剂、木钙、木钠、葡萄糖酸钠等。

The activating effect of admixture on the early strength of composite portland cement was studied after using LD early strength admixture of β-naphthalene sulphonate and calcium sulfate compound.

通过使用以β-萘磺酸盐并复合硫酸钙的 LD早强外加剂，研究外加剂对复合水泥早期强度的激发作用。

It can not only be absorbed on the surface of cement granule such as sulphonated naphthalene superplastic agent, but also produce the steric hindrance effect of branch chain.

它不仅具有磺化萘等传统减水剂吸附在水泥颗粒表面使其表面带电而互斥作用，更具备支链的位阻作用，从而对水泥分散的作用更强，作用时间更持久。

This paper presents the influences of sulphonated naphthalene formaldehyde condensatesand sulphonated melamine formaldehyde condensatesused spearately,and compounded sperplassticiseron the slump flow loss for cement paste or mortar.and slump loss for high fluidity concrete.

本文详细研究了单独使用萘系高效减水剂FDN和三聚氰胺树脂系高效减水剂SM ，以及复合使用FDN +SM对水泥净浆和水泥胶砂扩展度，以及大流动性混凝土坍落度经时损失的影响。

The influence of sulphonated naphthalene formaldehyde condensates,polycarboxylic series(SR3),aminosulfonic acid-based series on rheology of sulphoaluminate cement paste is investigated.

利用缓凝剂有效控制了硫铝酸盐水泥的凝结时间；利用浆体稳定剂成功解决了水泥净浆的板结、泌水问题；从浆体流变学角度研究了外加剂—硫铝酸盐水泥浆体体系稳定性。

Studied influence of sulphonated naphthalene formaldehyde condensates, polycarboxylic series(SR3), aminosulfonic acid-based series on rheology of sulphoaluminate cement paste. Adjusted setting time with setting retarder, and reduced water dilution, bleeding, segregation of fresh paste with viscosity-modifying admixture.

研究了萘系、氨基磺酸盐系和聚羧酸系高效减水剂与硫铝酸盐水泥的相容性问题，利用缓凝剂有效控制了硫铝酸盐水泥的凝结时间，利用浆体稳定剂成功解决了水泥净浆的板结、泌水问题，从浆体流变学角度研究了外加剂—硫铝酸盐水泥浆体体系稳定性。

A sulfonated poly aryl ether with sulfonic group on naphthalene ring of side chain and preparation thereof, which is capable to solve technical problems of complexity in synthesis, hardness in controlling sulphonation position and degree, high possibility of side reaction in sulphonation, complexity in sulphonation and hardness to realize indutrialzation.

一种磺酸基在侧链萘环上的磺化聚芳醚及其制备方法，解决现有技术中合成方法复杂，磺化位置和磺化度难以控制，磺化过程中容易发生多种副反应，磺化工艺复杂难以实现工业化等技术问题。

The adsorption behaviour of chemically different superplasticizers, such as melamine formaldehyde sulphite polycondensate,β-naphthalene sulfonate formaldehyde polycondensate and polycarboxylate, on early hydrating cement phases was studied. For this purpose, pure ettringite AF(subscript t, monosulfate AF(subscript m and syngenite were prepared. The adsorbed amount and zeta potential of early hydration products were measured.

制备了钙矾石AF(下标 t、单硫型硫铝酸钙AF(下标 m和钾长石类单矿物，并研究了三聚氰胺磺酸盐甲醛缩聚物、β-萘磺酸盐甲醛缩合物及聚发酸盐等几种化学成分不同的超塑化剂在其早期水化颗粒表面上的吸附行为。

The changes of hydroperoxide content during the oxidation course of unsaturated hydrocarbons were investigated by using tetralin, 1-methyl-naphthalene and hex adecene as model compounds.

以四氢萘、1-甲基萘及十六烯等模型化合物为主，考察了不饱和烃类在氧化过程中氢过氧化物含量的变化，并对最终氧化产物进行了 GC/MS 分析。

Yellow Submarine' while preserving overall quality, the effects of silver thiosulphate,naphthalene acetic acid, gibberellin and benzyladenine were investigated.

黄色潜水艇'，同时维护整体素质，影响硫代银，樟脑，乙酸， 920 ( 2274 )和苄进行了调查。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。