拉挤成型锚杆环氧树脂基体及复合材料杆体力学性能研究  

Study on physical properties of epoxy resin matrix and composite rod ofpultruded anchor rod

作　　者：王存飞 杨增福 陈亚芹 张旭锋 WANG Cunfei;YANG Zengfu;CHEN Yaqin;ZHANG Xufeng(CHN Energy Shendong Coal Group Co.,Ltd.,Yulin 719325,China;Shandong Aozhuo New Material Co.,Ltd.,Tengzhou 277524,China;School of Materials,Beijing Institute of Technology,Beijing 100081,China)

机构地区：[1]中国神华能源股份有限公司神东煤炭分公司,陕西榆林719325 [2]山东奥卓新材料有限公司,山东滕州277524 [3]北京理工大学材料学院,北京100081

出　　处：《煤炭工程》2024年第1期141-147,共7页Coal Engineering

摘　　要：针对高强度复合材料锚杆拉挤成型的应用需求,开发了酸酐固化环氧树脂基体。研究了树脂基体的流变性能、固化性能和浇注体力学性能,并建立了Arrhenius粘度模型来预测树脂的粘度特性。结果表明,开发的环氧树脂基体具有粘度低、工艺操作期长、固化反应放热集中等优点,树脂浇注体的拉伸强度、断裂伸长率、弯曲强度分别达到了74.25 MPa、4.48%、127 MPa,性能满足高强度复合材料锚杆拉挤生产工艺及性能要求。实验选取高强度玻璃纤维拉挤成型制备了直径22 mm的全螺纹复合材料锚杆,杆体的拉伸强度、横向剪切强度分别达到了1027.3 MPa、223.6 MPa,符合高强度复合材料锚杆要求。In order to meet the application requirements of high strength composite rock bolt pultrusion molding,epoxy resin matrix cured by acid anhydride was developed.The rheological properties,curing properties of the resin matrix and mechanical properties of the casting body were studied,and the Arrhenius viscosity model was established to predict the viscosity characteristics of the resin.The results showed that the developed epoxy resin matrix has the advantages of low viscosity,long operation period and concentrated heat release in curing reaction.The tensile strength,elongation at break and bending strength of resin castable are 74.25 MPa,4.48%and 127 MPa,respectively,which meet the requirements of high strength composite bolt pultrusion production process and performance.In addition,high strength glass fiber was selected to prepare 22 mm diameter full thread composite bolt,the tensile strength and transverse shear strength of bolt body reached 1027.3 MPa and 223.6 MPa,respectively,which meet the requirements of high strength composite rock bolt.

关 键 词：拉挤成型 环氧树脂 粘度模型 复合材料锚杆 力学性能 

分 类 号：TD353[矿业工程—矿井建设]