有机改性海泡石对聚氨酯注浆材料固化行为与力学性能的影响#br#

金属矿山 ›› 2025, Vol. 54 ›› Issue (10): 286-294.

有机改性海泡石对聚氨酯注浆材料固化行为与力学性能的影响#br#

姚　鑫^1,2　冯国瑞^1,2,3　王　帅¹　魏昱含¹　薛改利¹　贾佳鑫¹　侯　凯^1,2,3

1. 太原理工大学矿业工程学院,山西太原 030024;2. 矿山岩层控制及灾害防控山西省重点实验室,山西太原 030024;
3. 山西省煤基资源绿色高效开发工程中心,山西太原 030024

出版日期:2025-10-15 发布日期:2025-11-10
通讯作者: 侯　凯(1990—),男,副教授,博士,博士研究生导师。
作者简介:姚　鑫(2000—),男,硕士研究生。
基金资助:
国家自然科学青年科学基金项目(A 类延续资助)(编号:52525401);国家自然科学基金重点项目(编号:52334005);国家自然科学基
金项目(编号:52104261);山西省百亿计划项目(编号:BY2400007310)。

The Effect of Organically Modified Sepiolite on the Curing Behaviour and Mechanical Properties of Polyurethane Grouting Materials#br#

YAO Xin^1,2　FENG Guorui^1,2,3　WANG Shuai¹　WEI Yuhan¹　XUE Gaili¹　JIA Jiaxin¹　HOU Kai^1,2,3

1. College of Mining Engineering,Taiyuan University of Technology,Taiyuan 030024,China;
2. Shanxi Key Laboratory of Mine Rock Strata Control and Disaster Prevention,Taiyuan 030024,China;
3. Shanxi Province Coal-based Resources Green and High-efficiency Development Engineering Center,Taiyuan 030024,China

Online:2025-10-15 Published:2025-11-10

摘要/Abstract

摘要： 针对矿山注浆用聚氨酯材料存在的阻燃性差、力学强度不足及成本较高等问题,研究通过引入有机改
性海泡石(SK-SEP)实现对材料固化特性与力学性能的协同调控。采用硅烷偶联剂(KH550)与硬脂酸(SA)对海泡石
进行协同改性,并通过FTIR、XRD、SEM 及接触角测试证实了其疏水性与界面相容性的显著提升。系统研究了SKSEP
掺量对复合材料固化行为、流变特性与力学性能的影响规律。结果表明:SK-SEP 的加入可显著降低固化放热峰
值温度、延长固化时间,并提高浆体粘度;复合材料抗压强度随SK-SEP 添加量增加呈先增后降趋势,当其质量分数为
4%时,性能最优,此时固化最高温度为99 ℃,固化时间为145 s,压缩强度达82. 41 MPa,较纯聚氨酯显著提高。研究
为开发高性能、高安全性聚氨酯注浆材料提供了有效方法与实践依据。

关键词: organically modified sepiolite,polyurethane grouting materials,curing temperature,rheological properties, compressive strength

Abstract: In order to address the issues of poor flame retardancy,insufficient mechanical strength,and high cost associated
with polyurethane materials used in mine grouting,this study introduces organically modified sepiolite (SK-SEP) to achieve
synergistic regulation of the material′s curing characteristics and mechanical properties. The sepiolite underwent synergistic
modification using silane coupling agent (KH550) and stearic acid (SA). Significant enhancements in hydrophobicity and interfacial
compatibility were confirmed via FTIR,XRD,SEM,and contact angle testing. The influence of SK-SEP dosage on the
composite material′s curing behaviour,rheological characteristics,and mechanical properties was systematically investigated.
Results indicated that SK-SEP addition significantly reduces peak curing exothermic temperature,prolongs curing time,and increases
slurry viscosity. The compressive strength of the composite material initially increased then decreased with rising SKSEP
content,achieving optimal performance at a mass fraction of 4%. At this point,the maximum curing temperature was 99
℃,the curing time was 145 s,and the compressive strength reached 82. 41 MPa,representing a significant improvement over
pure polyurethane. This research provides an effective methodology and practical basis for developing high-performance,highsafety
polyurethane grouting materials.

Key words: 有机改性海泡石　聚氨酯注浆材料　固化温度　流变性能　抗压强度

中图分类号:

姚　鑫, 　冯国瑞, 　王　帅　魏昱含　薛改利　贾佳鑫　侯　凯, . 有机改性海泡石对聚氨酯注浆材料固化行为与力学性能的影响#br#[J]. 金属矿山, 2025, 54(10): 286-294.

YAO Xin, 　FENG Guorui, 　WANG Shuai　WEI Yuhan　XUE Gaili　JIA Jiaxin　HOU Kai, . The Effect of Organically Modified Sepiolite on the Curing Behaviour and Mechanical Properties of Polyurethane Grouting Materials#br#[J]. Metal Mine, 2025, 54(10): 286-294.

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