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发明公开
CN103342500A 一种粘土屏蔽剂及其制备方法 无效 - 撤回

一种粘土屏蔽剂及其制备方法
摘要：
本发明公开了一种粘土屏蔽剂,它是由以下重量百分比的原料组成:硅酸盐0~50%；磷酸盐0~50%；葡糖糖酸钠1%~5%；十二烷基硫酸钠1%~5%；水10%~50%。本发明的粘土屏蔽剂的制备方法包含以下步骤：（1）首先按重量配比称取原料；（2）然后将原料混合，进行搅拌，搅拌温度为20~50℃，搅拌速度为50~500r/min，搅拌时间为10~30min，即可得到粘土屏蔽剂。本发明屏蔽剂能优先吸附混凝土砂石材料中的粘土，来达到屏蔽粘土的不利影响，提高聚羧酸减水剂的作用效果。本发明所用原料来源广泛，不需要化学反应合成，制备方法简单，作用效果显著，适合工业化大批量生产。
摘要（英）：

The invention discloses a clay screening agent. The clay screening agent comprises the following materials in percentage by weight: 0-50% of silicate, 0-50% of phosphate, 1%-5% of sodium gluconate, 1%-5% of lauryl sodium sulfate and 10%-50% of water. The preparation method of the clay screening agent disclosed by the invention comprises the following steps of: (1), firstly, weighing the materials in the percentage by weight; and (2), then, mixing and stirring the materials to obtain the clay screening agent, wherein the stirring temperature is 20 DEG C-50 DEG C, the stirring speed is 50 revolutions/minute-500 revolutions/minute, and the stirring time is 10 minutes-30 minutes. The clay screening agent disclosed by the invention can be used for preferably adsorbing the clay in a concrete gravel material, so that the bad influences of the clay are screened, and therefore, the acting effect of a polycarboxylic acid water reducing agent is improved. The clay screening agent is wide in material resource, not needed to be synthesized by chemical reaction, simple in preparation method, remarkable in acting effect and suitable for large-scale industrial production.

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