查询词典 styrene

Carbon bisulfide was the main poison in the hydrogenation reaction of conjugated double bond of styrene and the negative effect increased with the increase of carbon bisulfide content; the negative effect decreased with the increase of reaction temperature.

二硫化碳是苯乙烯中共轭烯烃加氢快速失活的主要硫化物。随着二硫化碳含量的增加，苯乙烯中共轭烯烃加氢活性下降程度增大；随温度升高，其加氢活性下降程度减小。

The effect of styrene-butadiene latex on the water absorption ratio and the carbonization depth of cement mortar were studied.

研究了丁苯乳液对水泥砂浆吸水率及碳化深度的影响，并提出了吸水率、碳化深度的多因素预测模型。

However the chlorohydrin route generates chlorinated by-products, mainly dichloropropane and CaCl_2, which results in equipment erosion and serious environmental pollution, while the co-production route needs large investment and its economic benefit is linked to market of the by-products, namely styrene or tert-butyl alcohol.

氯醇法设备腐蚀和环境污染严重，共氧化法设备投资巨大且受到联产物——苯乙烯或叔丁醇销路的制约。1983年，Taramasso首次报道了钛硅分子筛(TS-1)的合成，为低碳烯烃选择氧化开辟了一条新的途径。

Human exposed to styrene may cause chronic diseases of the central nervous system and increase choice reaction time and color confusion index.

人类暴露於苯乙烯环境下将导致神经系统的慢性疾病，像是导致反应时间变长和对颜色辨识的混淆等。

We investigated the congeries morphology of sulfonated poly (styrene-b-ethylene/butylenes-b-ethylene) and its polymer colloid morphology that in solution, it is theory significance for us to understand the form mechanism of polymer colloid.

以此为基体树脂，研究其聚集态形貌，以及这些离子化聚合物在溶液中所形成的聚合物胶束形貌，对于认识聚合物胶束的形成机制具有理论意义。

In this work, we also investigated grafting copolymerization of styrene in nascent PP matrix.

本工作也考察了N-PP在相似条件下，反应时间对接枝效率的影响。

In this work, self-emulsified emulsion copolymerization of styrene and unsaturated polyester was studied.

本论文还进行了不饱和聚酯/苯乙烯的自乳化乳液聚合研究。

Polystyrene itself is non-toxic, but the residual polystyrene resin polymerization of styrene monomer and some other volatile substances, including ethylene, cumene, toluene, etc., have a certain toxicity.

聚苯乙烯本身是无毒的，但聚苯乙烯树脂聚合残留的单体苯乙烯及其他一些挥发性物质，包括乙烯、异丙苯、甲苯等，有一定毒性。

Grain inhibiting consisted of coating the propellant outer diametrical surface with polyester/styrene resin, then wrapping a resin soaked paper tightly around, forming two full layers.

粮食抑制构成涂层的推进剂外表面径向与聚酯/苯乙烯树脂，然后包装树脂浸泡文件，紧紧围绕，形成了两个完整层。

The styrene-acrylate spheres were coated with the TiO2 colloidal particles via electrostatic effect and hydrogen bond interactions with the increase of aging time, thus the film-forming capability of the solution was changed. The poor film-forming capability results in the formation of the porous structure with dense, homogeneous island morphology. Then the TiO2 porous films with dense pores can be obtained after two coating-dissolving cycles.

结果表明，TiO2溶胶与苯丙乳液混合后，陈化时间的延长有利于TiO2胶粒通过静电、氢键作用在苯丙乳液粒子表面形成吸附层，从而改变涂膜液的成膜性，形成较为密集、且均匀分布的岛状多孔结构，在此基础上经两次涂膜，即可获得具有致密孔洞的TiO2多孔薄膜。

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。