可膨胀石墨制备了三种不同的方法。
Expandable graphite was prepared with three different methods.
通过正交实验研究了可膨胀石墨的催化合成乙酸乙酯的最佳条件。
The optimum condition for synthesis of ethyl acetate catalyzed by expansible graphite was investigated through orthogonal test.
结果表明,在可膨胀石墨的催化下,酯化条件明显缓和,但酯化产率较低,不到40%。
The results showed that the reaction condition became milder over expansible graphite, but the esterification efficiency was lower than 40%.
实验证明涂料的防火性能与树脂基体、阻燃体系、可膨胀石墨、颜填料的用量密切相关。
The experiments indicate that the fire-endurance effect was consanguineously correlative with dosages of the matrix resins, flame-retardant system, expandable graphite and pigment-fillers.
运用JB/T 6623-93中测定硫的方法,测定可膨胀石墨中的硫并取得满意结果。
Sulphur in expandable graphitede is determined using the way of determining Sulphur in JB/T 6623-93.
介绍了可膨胀石墨的特性及其在膨胀型防火涂料中的应用特点,并对其发展前景进行了展望。
The features of the expansible graphite and its application in the expansible fireproof coatings are introduced.
通过高温下膨化二茂铁与可膨胀石墨混合物的方法,制得附着铁氧化物的膨胀石墨复合材料。
The expanded graphite composites with iron oxides adsorbed were prepared by expanding the mixture of ferrocene and expandable graphite under high temperatures.
结果表明最大衰减均达到70%以上,说明利用可膨胀石墨发烟剂产生的烟幕来干扰毫米波是可行的。
Test results showed that the maximum attenuation effect can exceed 70%, and the expansible graphite was proved to be a possible countermeasure to millimeter wave.
在酯化反应中,催化剂用量,原料配比,反应时间对酯化反应的可膨胀石墨的制备方法的影响进行了讨论。
In esterification reaction, the influences of catalyst amount, materials ratio, reaction time, prepared method of the expandable graphite on esterification reaction were discussed.
通过混酸法制备了两种不同氧化剂体系的可膨胀石墨(EG),并采用膨胀容积和X射线(XRD)对EG进行了表征。
Two EG systems doped different oxidants were prepared by blended acid and characterized by expandable capacity and XRD.
研究了可膨胀石墨含量和温度对复合保护渣导热系数的影响规律。研究结果可用于:计算钢锭模帽口散热及帽口内钢水凝固时间;
The effect of expanding graphite content and temperature on the thermal conductivity of compound mold flux is studied through laboratorial measures.
结果表明,与传统的化学膨胀型防火涂料相比,可膨胀石墨防火涂料在热降解、阻燃性、耐老化性、耐候性能等方面具有突出的优点。
Experimental data show that the physical flame retardant coatings possess more advantages over the chemical coatings as to the aging resistance, water resistance and flame retardancy.
通过对复合材料的氧指数测定表明,添加了可膨胀石墨的复合材料具有良好的阻燃特性,但膨胀石墨对于复合材料的阻燃效应贡献甚微。
By means of the test of LOI (limited oxygen index), it is showed that composites have good flame-retardant characteristics and expanded graphite has less contribution to the flame -retardant effect.
通过对复合材料的氧指数测定表明,添加了可膨胀石墨的复合材料具有良好的阻燃特性,但膨胀石墨对于复合材料的阻燃效应贡献甚微。
By means of the test of LOI (limited oxygen index), it is showed that composites have good flame-retardant characteristics and expanded graphite has less contribution to the flame -retardant effect.
应用推荐