无碱玻璃熔体表面张力的研究与应用  

Research and Application of Surface Tension of E-Glass Melt

作　　者：邢文忠 柏晓强 章林 Xing Wenzhong;Bai Xiaoqiang;Zhang Lin(Jushi Group Co.,Ltd.,Tongxiang 314500)

机构地区：[1]巨石集团有限公司,桐乡314500

出　　处：《玻璃纤维》2024年第3期14-17,52,共5页Fiber Glass

摘　　要：基于玻璃熔体表面张力测试技术,研究玻璃纤维行业中,典型无碱配方玻璃(E玻璃)在高温液体状态下(即玻璃液)的熔体表面张力。在此基础上,结合无碱玻璃熔体的粘度性能,对其应用进行探究。结果表明:玻璃纤维行业中,CaO-B_(2)O_(3)-SiO_(2)-Al_(2)O_(3)无碱玻璃,在1200~1500℃时,熔体的表面张力随着温度的升高而增大,有着近似线性的关系;等质量分数的B2O3替代CaO时,无碱玻璃熔体的表面张力减小,同时对温度的变化也更加敏感;对于玻璃纤维用典型无碱玻璃,其熔体可纺性指标k(表面张力γ与黏度η的比值)在2.4~10.4 mm/s范围内。Based on the surface tension testing technology for glass melt,the surface tension of alkali-free glass(E-Glass)in the glass fiber industry under high-temperature liquid state(i.e.liquid glass)is studied.On this basis,combined with the viscosity performance of alkali-free glass melt,its application is explored.The results show that in the glass fiber industry,the surface tension of CaO-B_(2)O_(3)-SiO_(2)-Al_(2)O_(3) alkali-free glass increases with the increase of temperature at 1200~1500℃,with an approximate linear relationship;When B2O3 with equal mass content replaces CaO,the surface tension of alkali-afree glass melt decreases,and it is also more sensitive to temperature changes;For typical alkali-free glass used for glass fibers,the melt spinnability index k(the ratio of surface tensionγto viscosityη)ranges from 2.4 to 10.4 mm/s.

关 键 词：无碱玻璃 熔体 表面张力 粘度 可纺性指标 玻璃纤维 

分 类 号：TQ171.771.12[化学工程—玻璃工业]