耐高温缓凝剂HJ-1的合成及性能

doi:10.16085/j.issn.1000-6613.2024-1030

摘要/Abstract

摘要：

以2-丙烯酰胺基-2-甲基丙磺酸（AMPS）、衣康酸（IA）、顺丁烯二酸（MA）或N,N-二甲基丙烯酰胺（NNDMA）为原料，采用自由基水溶液共聚法合成AMPS-IA、AMPS-IA-MA、AMPS-IA-NNDMA三种缓凝剂。结果表明，AMPS-IA-MA的热稳定性明显高于其他两种，起始分解温度高达343℃。水泥浆稠化实验研究发现加有缓凝剂的水泥浆表现出良好的抗温缓凝效果。当与硼砂复配使用时，进一步提升了水泥浆的稠化性能和流变性能，同时水泥石抗压强度保持不变。180℃、30MPa条件下，稠化时间达260min，养护24h和72h后水泥石强度分别为23.75MPa和20.69MPa。

关键词: 干热岩, 缓凝剂, 共聚物, 热稳定性

Abstract:

AMPS-IA, AMPS-IA-MA and AMPS-IA-NNDMA were synthesized from 2-acrylamide-2-methylpropanesulfonic acid (AMPS), itaconic acid (IA), maleic acid (MA) or N,N-dimethylacrylamide (NNDMA) by free radical aqueous copolymerization method. The results showed that the thermal stability of AMPS-IA-MA was significantly higher than that of the other two and the initial decomposition temperature was as high as 343℃. It was found that the cement slurry with retarder had good temperature resistance and retarding effect. When combined with borax (PS), the thickening and rheological properties of cement slurry were further improved and the compressive strength of cement stone was basically unchanged. Under the conditions of 180℃ and 30MPa, the thickening time reaches 260min and the strength of cement stone after curing for 24h and 72h was 23.75MPa and 20.69MPa, respectively.

Key words: hot dry rock, retarder, copolymer, thermal stability

中图分类号:

TQ172

李志福, 杨晓东, 汪保财, 胡长流, 裴继凯, 阎龙芳, 武瑞芳, 张昌生, 王永钊. 耐高温缓凝剂HJ-1的合成及性能[J]. 化工进展, 2025, 44(9): 5092-5100.

LI Zhifu, YANG Xiaodong, WANG Baocai, HU Changliu, PEI Jikai, YAN Longfang, WU Ruifang, ZHANG Changsheng, WANG Yongzhao. Synthesis and properties of high temperature retarder HJ-1[J]. Chemical Industry and Engineering Progress, 2025, 44(9): 5092-5100.

图/表 13

参考文献 21

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编号	A	B	C	D	稠化时间/min
1	79%-15%-6%	5%	30	70	174
2	79%-15%-6%	6%	45	80	170
3	79%-15%-6%	7%	60	70~80	168
4	76%-16%-8%	5%	45	70~80	185
5	76%-16%-8%	6%	60	70	178
6	76%-16%-8%	7%	30	80	182
7	73%-17%-10%	5%	60	80	180
8	73%-17%-10%	6%	30	70~80	199
9	73%-17%-10%	7%	45	70	192
K₁	171	180	185	181
K₂	182	182	182	177
K₃	190	181	175	184
R	19	2	10	7
最佳水平	A₃	B₂	C₁	D₃

编号	A	B	C	D	稠化时间/min
1	79%-15%-6%	5%	30	70	174
2	79%-15%-6%	6%	45	80	170
3	79%-15%-6%	7%	60	70~80	168
4	76%-16%-8%	5%	45	70~80	185
5	76%-16%-8%	6%	60	70	178
6	76%-16%-8%	7%	30	80	182
7	73%-17%-10%	5%	60	80	180
8	73%-17%-10%	6%	30	70~80	199
9	73%-17%-10%	7%	45	70	192
K₁	171	180	185	181
K₂	182	182	182	177
K₃	190	181	175	184
R	19	2	10	7
最佳水平	A₃	B₂	C₁	D₃

稠化温度/℃	缓凝剂加量w	初始稠度/BC	过渡时间/min	稠化时间/min
140	5%	23	10	335
160	5%	22	7	256
180	5%	20	3	199
180	5%+0.5%PS	17	3	260
160	5%+0.5%PS	16	8	316
140	5%+0.5%PS	18	10	396

稠化温度/℃	缓凝剂加量w	初始稠度/BC	过渡时间/min	稠化时间/min
140	5%	23	10	335
160	5%	22	7	256
180	5%	20	3	199
180	5%+0.5%PS	17	3	260
160	5%+0.5%PS	16	8	316
140	5%+0.5%PS	18	10	396

缓凝剂加量/%	流动度/cm	六速旋转黏度计读数						n	k/Pa∙s ⁿ
缓凝剂加量/%	流动度/cm	θ₆₀₀	θ₃₀₀	θ₂₀₀	θ₁₀₀	θ₆	θ₃	n	k/Pa∙s ⁿ
0	20.5	201.2	112.1	73.3	34.7	1.6	0.7	1.07	0.07
3	23	313.0	184.2	119.1	61.9	3.5	1.8	0.99	0.19
5	24	513.6	325.3	243.0	121.5	10.1	4.9	0.90	0.62
5+0.5PS	26	367.1	209.1	141.6	76.1	5.0	2.6	0.92	0.34