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日本北海道国家工业研究所成功地用煤灰生产出玻璃纤维。虽然煤灰基纤维的抗张强度较低,但它的喷丝性能好,能抗碱腐蚀,因而可用于增强混凝土。按目前正在研究的有用九州和北海道的天然火山灰作原料生产玻璃纤维的,至于用北海道电厂燃煤锅炉煤灰制造玻璃纤维在世界上还属首创。目前在实验室内已制得直径10～30μm的破璃纤维,喷丝速度为
The National Institute of Industry in Hokkaido, Japan, successfully produced fiberglass from coal ash. Although the soot-based fiber has a low tensile strength, it has good spinnability and is resistant to alkali corrosion and can be used to reinforce concrete. According to the current research on the use of natural volcanic ash from Kyushu and Hokkaido as raw materials for the production of glass fiber, the use of coal-fired boiler coal ash from Hokkaido Power Plant to manufacture glass fiber is still the first in the world. At present, the glass fiber with a diameter of 10-30 μm has been produced in the laboratory, and the spinning speed is