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摘要:
连续玄武岩纤维通常是以玄武岩矿石为唯一原料,经高温熔融和拉丝制备而成的一种无机非金属连续纤维材料。它作为一种重要的力学增强矿物功能材料和绿色结构材料,被列入我国重点扶持发展的四大高性能纤维之一。在总结玄武岩纤维的原料特征、拉丝工艺、物化性质等基础上,进一步分析了玄武岩纤维应用的广阔的市场前景,指出玄武岩纤维具有弹性模量高、耐高温、耐腐蚀、吸音系数较高、电绝缘性良好等优良性能,且性价比优势明显,可在一些领域中取代高性能高价格纤维。同时,玄武岩纤维还具有自己独特的优良物化性质,如耐湿、耐海水、耐化学腐蚀和耐高低温,在一些应用领域具有不可替代的作用。因此,应加大玄武岩纤维轻质高强材料及复合材料新产品新工艺研究和推广应用。
Abstract:Continuous basalt fiber (CBF) is a kind of inorganic nonmetallic continuous fiber which is usually prepared by high-temperature melting and wire drawing with basalt ore as the only raw material. As an important mechanical reinforced mineral functional material and green structural material, it is listed as one of the four high-performance fibers supported and developed by China. On the basis of summarizing the raw material characteristics, wire drawing technology, physical and chemical properties of basalt fiber, the broad market prospect of basalt fiber application was further analyzed. It was pointed out that CBF had high elastic modulus, high temperature resistance, corrosion resistance, high sound absorption coefficient, good electrical insulation and other excellent properties, and cost-effective advantages, could replace high performance and high price fiber in some fields. At the same time, CBF also had its own unique excellent physical and chemical properties, such as moisture resistance, seawater resistance, chemical corrosion resistance and high and low temperature resistance, in some application fields, CBF had irreplaceable role. Therefore, it is necessary to increase the research and application of new products and technologies of light and high strength basalt fiber materials and composite materials.
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Key words:
- basalt fibre /
- drawing process /
- basalt /
- mineral functional materials /
- green structural materials
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表 1 玄武岩纤维与其他纤维主要性能比较
Table 1. Main perforamance comparisons of basalt fibers and others
纤维类型 密度/(g·cm-3) 抗拉强度/MPa 弹性模量/GPa 延伸率/% 绝缘性能 是否环保 生产成本 玄武岩纤维 2.80 3 000~4 840 79.3~110 3.1 是 是 低 碳纤维 1.78 3 500~6 000 230~600 1.5~2.0 否 否 高 芳纶纤维 1.45 2 900~3 400 70~140 2.4 是 否 高 S-玻璃纤维 2.54~2.57 4 020~4 650 83~86 5.3 是 否 低 E-玻璃纤维 2.54 3 100~3 800 72.5~75.5 4.7 是 否 低 注:(1) S-玻璃纤维为高强玻纤, E-玻璃纤维为无碱玻纤; (2) 据刘嘉麒[10]和石钱华[21]整理。 表 2 玄武岩纤维与其他纤维耐化学腐蚀性能比较
Table 2. Comparison of chemical resistence properties of basalt fiber with others
纤维类型 在水中煮沸3 h后质量损失/% 在NaOH中煮沸3 h后质量损失/% 在HCl中煮沸3 h后质量损失/% 玄武岩纤维 1.60 2.75 2.20 S-玻璃纤维 5.00 5.00 15.70 E-玻璃纤维 6.20 6.00 38.90 注:引自Jamshaid et al. [8]。 表 3 玄武岩纤维与其他纤维热性能比较
Table 3. Comparison of thermal properties of basalt fiber with others
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