A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention discloses a magnesium oxysulfate modifier, and relates to the field of magnesium oxysulfate cementing materials. The modifier is prepared by mixing 15-30 parts of malic acid or malate, 15-30 parts of 1, 2-propylene glycol, 15-30 parts of an organosilicon waterproofing agent, 5-20 parts of acrylate, and 5-20 parts of a vinyl acetate-acrylate copolymer emulsion under stirring of a stirrer. The invention provides a blend of malic acid or malate, 1.2 propylene glycol, an organosilicon waterproofing agent, acrylate and a vinyl acetate-acrylate copolymer emulsion according to a certainweight ratio; a modifier is prepared at a certain rotating speed under the action of a stirrer and is mixed with light calcined magnesia and a magnesium sulfate solution according to a certain ratio,so that the setting time of the magnesium oxysulfate cement is greatly prolonged, the breaking strength of the magnesium oxysulfate cement is improved, the compressive strength and the water resistance are greatly improved, and the product is prevented from cracking.
本发明公开了一种硫氧镁改性剂，涉及硫氧镁胶凝材料领域。本发的改性剂是由苹果酸或苹果酸盐15‑30份、1.2丙二醇15‑30份、有机硅类防水剂15‑30份、丙烯酸盐5‑20份、醋酸乙烯‑丙烯酸酯共聚物乳液5‑20份高含量的工业级原料在搅拌机搅拌下进行混合制得。本发明通过提供一种具有一定重量配比的苹果酸或苹果酸盐、1.2丙二醇、有机硅类防水剂、丙烯酸盐、醋酸乙烯‑丙烯酸酯共聚物乳液的共混物，在搅拌机的作用下以一定的转速制成改性剂与轻烧氧化镁、硫酸镁溶液按照一定的比例进行混合，使硫氧镁水泥凝结时间得到大幅度延长，并且对其抗折度提高、抗压强度、抗水性能得到大幅提高，防止制品开裂。
The invention discloses a magnesium oxysulfate modifier, and relates to the field of magnesium oxysulfate cementing materials. The modifier is prepared by mixing 15-30 parts of malic acid or malate, 15-30 parts of 1, 2-propylene glycol, 15-30 parts of an organosilicon waterproofing agent, 5-20 parts of acrylate, and 5-20 parts of a vinyl acetate-acrylate copolymer emulsion under stirring of a stirrer. The invention provides a blend of malic acid or malate, 1.2 propylene glycol, an organosilicon waterproofing agent, acrylate and a vinyl acetate-acrylate copolymer emulsion according to a certainweight ratio; a modifier is prepared at a certain rotating speed under the action of a stirrer and is mixed with light calcined magnesia and a magnesium sulfate solution according to a certain ratio,so that the setting time of the magnesium oxysulfate cement is greatly prolonged, the breaking strength of the magnesium oxysulfate cement is improved, the compressive strength and the water resistance are greatly improved, and the product is prevented from cracking.
本发明公开了一种硫氧镁改性剂，涉及硫氧镁胶凝材料领域。本发的改性剂是由苹果酸或苹果酸盐15‑30份、1.2丙二醇15‑30份、有机硅类防水剂15‑30份、丙烯酸盐5‑20份、醋酸乙烯‑丙烯酸酯共聚物乳液5‑20份高含量的工业级原料在搅拌机搅拌下进行混合制得。本发明通过提供一种具有一定重量配比的苹果酸或苹果酸盐、1.2丙二醇、有机硅类防水剂、丙烯酸盐、醋酸乙烯‑丙烯酸酯共聚物乳液的共混物，在搅拌机的作用下以一定的转速制成改性剂与轻烧氧化镁、硫酸镁溶液按照一定的比例进行混合，使硫氧镁水泥凝结时间得到大幅度延长，并且对其抗折度提高、抗压强度、抗水性能得到大幅提高，防止制品开裂。
Magnesium oxysulfate modifier
一种硫氧镁改性剂
WU SHANGLIAN (author)
2020-07-07
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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