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A platform for research: civil engineering, architecture and urbanism
Composite cement grinding aid and preparation method thereof
The invention discloses a composite cement grinding aid and a preparation method thereof, the composite cement grinding aid comprises the following components by weight: 0.5-5 parts of a polymer grinding aid, 20-30 parts of industrial waste residue, 8-12 parts of a silane coupling agent, 5-10 parts of an inorganic salt and 30-40 parts of deionized water, the polymer grinding aid is prepared by esterifying maleic anhydride and triethanolamine, and then adding the inorganic salt into the polymer grinding aid to obtain the composite cement grinding aid. Taking the esterification product as a monomer, polymerizing with dimethyl diallyl ammonium chloride and 2-acrylamide-2-methylpropanesulfonic acid, and then hydrolyzing to obtain an amphoteric macromolecular substance. The composite cement grinding aid prepared by the method can generate an efficient grinding aid effect under the condition of a relatively low mixing amount, and the ground cement is relatively uniform and stable in particle size and has relatively good compressive strength and breaking strength.
本申请公开了一种复合型水泥助磨剂及其制备方法，按照重量份计，包括如下组分：0.5‑5份高分子助磨剂、20‑30份工业废渣、8‑12份硅烷偶联剂、5‑10份无机盐和30‑40份去离子水，其中，高分子助磨剂是通过马来酸酐与三乙醇胺进行酯化，并以酯化产物作为单体，与二甲基二烯丙基氯化铵和2‑丙烯酰胺‑2‑甲基丙磺酸进行聚合，然后水解得到的一种两性高分子物质。该法制得的复合型水泥助磨剂在较低掺量下即可产生高效的助磨效果，并且粉磨后的水泥粒径较均一稳定，具有较好的抗压强度和抗折强度。
Composite cement grinding aid and preparation method thereof
The invention discloses a composite cement grinding aid and a preparation method thereof, the composite cement grinding aid comprises the following components by weight: 0.5-5 parts of a polymer grinding aid, 20-30 parts of industrial waste residue, 8-12 parts of a silane coupling agent, 5-10 parts of an inorganic salt and 30-40 parts of deionized water, the polymer grinding aid is prepared by esterifying maleic anhydride and triethanolamine, and then adding the inorganic salt into the polymer grinding aid to obtain the composite cement grinding aid. Taking the esterification product as a monomer, polymerizing with dimethyl diallyl ammonium chloride and 2-acrylamide-2-methylpropanesulfonic acid, and then hydrolyzing to obtain an amphoteric macromolecular substance. The composite cement grinding aid prepared by the method can generate an efficient grinding aid effect under the condition of a relatively low mixing amount, and the ground cement is relatively uniform and stable in particle size and has relatively good compressive strength and breaking strength.
本申请公开了一种复合型水泥助磨剂及其制备方法，按照重量份计，包括如下组分：0.5‑5份高分子助磨剂、20‑30份工业废渣、8‑12份硅烷偶联剂、5‑10份无机盐和30‑40份去离子水，其中，高分子助磨剂是通过马来酸酐与三乙醇胺进行酯化，并以酯化产物作为单体，与二甲基二烯丙基氯化铵和2‑丙烯酰胺‑2‑甲基丙磺酸进行聚合，然后水解得到的一种两性高分子物质。该法制得的复合型水泥助磨剂在较低掺量下即可产生高效的助磨效果，并且粉磨后的水泥粒径较均一稳定，具有较好的抗压强度和抗折强度。
Composite cement grinding aid and preparation method thereof
一种复合型水泥助磨剂及其制备方法
CHEN XIAOBIN (author) / CHEN LIPING (author)
2024-01-19
Patent
Electronic Resource
Chinese
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