Linear water reducing agent and preparation method thereof
The invention relates to a linear water reducing agent and a preparation method thereof. The linear water reducing agent is prepared from the following raw materials in parts by weight: 200 parts of sulfo diacid, and 60-200 parts of a chain extender. According to the invention, the molecular structu...
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Zusammenfassung: | The invention relates to a linear water reducing agent and a preparation method thereof. The linear water reducing agent is prepared from the following raw materials in parts by weight: 200 parts of sulfo diacid, and 60-200 parts of a chain extender. According to the invention, the molecular structure of an anti-mud type water reducing agent is designed, carboxyl of sulfo-diacid and hydroxyl of a chain extender are synthesized in a polycondensation manner to obtain the linear water reducing agent with a linear main chain, and sulfo groups in the sulfo-diacid are used as anchoring groups, so that the linear water reducing agent not only has similar structures and properties of aliphatic water reducing agents, but also can avoid the problem that the color is too deep.
本发明涉及一种线型减水剂及其制备方法,以重量份数计,线型减水剂的制备原料包括磺基二酸200份;扩链剂60~200份。本发明通过对抗泥型减水剂的分子结构进行设计,磺基二酸的羧基和扩链剂的羟基以缩聚的方式合成得到一种线性主链的线型减水剂,依靠磺基二酸中的磺酸基作为锚固基团,使线型减水剂既具有脂肪族减水剂类似的结构和性能,又能避免自身颜色过深的问题。 |
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