查询词典 urea

Good crosslinking density and minimized use of hydrophilic matter are guarantees for the water resistance of urea-formaldehyde resin .

其主要影响因素是交联密度和亲水性物质的含量，良好的交联密度和尽可能少的亲水性物质是脲醛树脂耐水性的保障。

A novel environmental protective urea-formaldehyde resin and a preparation method belong to the field of wood processing adhesives.

一种新型环保脲醛树脂及制备方法属木材加工的胶粘剂领域。

The determination of buffer capacity of urea-formaldehyde resin used in MDF is discussed.

探讨中密度纤维板用脲醛树脂缓冲容量的测定，并分析影响脲醛树脂缓冲容量的因素，脲醛树脂缓冲容量对其固化时间和压制中密度纤维板性能的影响。

A study of the application of cyclic ethylene urea-formaldehyde resin finish on cotton and viscose rayon fabrics has been made.

根据国内的需要和已有的资料，我们对环亚乙基尿素——甲醛树脂在棉布及人造棉织物上的应用，进行了初步的研究。

The technology is characterized not only by processing timber so that water, anti-aging and strength much higher than the urea-formaldehyde glue timber processing, but also environmental protection.

该技术的特点是不仅加工木材，使水，抗衰老和强度远远高于脲醛胶木材加工，而且还保护环境。

Microcapsules of glyphosate were made by the method of in-situ polymerization with urea-formaldehyde resin as the outer membrane.

采用原位聚合法制备以脲醛树脂为壁材的草甘膦微胶囊除草剂。

It is reliable to use urea-formaldehyde resin to manufacture cotton stalk scrimber, and the density has direct influence on scrimber performance.

以脲醛树脂为胶黏剂生产棉秆重组材是可行的，板材密度对棉秆重组材性能有直接影响。

The paper studied the preparation of modified urea-formaldehyde resin adhesive with polyvinyl alcohol and melamine.

研究了聚乙烯醇和三聚氰胺改性脲醛树脂胶粘剂的制备工艺和配方。

Effect of bonding strength and formaldehyde emission of plywood with low molar ratio urea-formaldehyde adhesive resin modified with p-aminophenol is investigated.

研究了对氨基酚(p-aminophenol)对低物质量比脲醛树脂的胶合强度和甲醛释放量的影响。

Surface characteristics of rice straw fiber, such as wettability and free radical, have great effect on the properties of interface between rice straw fiber and urea-formaldehyde.

通过对稻秸原料进行水热、酸碱和冷等离子体预处理，分析了纤维表面的浸润性及表面自由基浓度的变化。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。