采用了共混静电纺丝法制备了硼酚醛环氧树脂基纳米碳纤维.在纺丝液的配制中选择硼酚醛树脂(BPF)和环氧树脂(EP)为原料,聚乙烯醇缩丁醛酯(PVB)为纺丝助剂,乙醇为溶剂.静电纺丝后采用阶梯式加热法进行固化处理,固化后在管式炉里进行碳化处理.多次实验对比分析后发现:BPF/EP共混纺丝液的最佳配比为BPF/EP=95%/5%,纺丝液浓度为40%,且在20 kV纺丝电压、1 ml/h推进速率、20 cm纺丝距离下纺丝效果最佳.在该最佳纺丝液配比以及纺丝工艺条件下制备出的BPF/EP纳米基碳纤维经表征检测:在1000℃下残炭率可达到64%左右,碳纤维结构方面比表面积为811.242 m2/g,总孔容0.288 cm3/g,其中微孔孔容为0.281 cm3/g,平均孔径为0.590 nm.
Boron phenolic epoxy resin nanocarbon fibers are prepared by blending electrospinning method.Boron phenolic resin(BPF)modified with epoxy resin(EP)is selected as the raw material,polyvinyl butyraldehyde(PVB)is used as the spinning aid,and ethanol is used as the solvent.After electrospinning,a step heating method is used for curing treatment,and after curing,carbonization treatment is carried out in a tube furnace.After multiple experiments and comparative analysis,it is found that the optimal spinning solution ratio is when the BPF/EP ratio is 95%/5%and the spinning solution concentration is 40%.The spinning effect is best at a spinning voltage of 20 kV,a pushing rate of 1 ml/h,and a spinning distance of 20 cm.The BPF/EP nano based carbon fibers prepared under the optimal spinning solution ratio and spinning process conditions are characterized and detected to have a residual carbon rate of about 64%at 1000℃,the specific surface area of carbon fiber structure is 811.242 m2/g,total pore volume 0.288 cm3/g,among them,the microporous volume is 0.281 cm3/g.The average pore size is 0.590 nm.
马俊杰;张明;张如全;朱波涛;蒋文龙
武汉纺织大学 纺织科学与工程学院,武汉 430200武汉纺织大学 纺织科学与工程学院,武汉 430200||武汉纺织大学 省部共建纺织新材料与先进加工技术国家重点实验室,武汉 430200恒天嘉华非织造有限公司,湖北仙桃 433000
化学工程
硼酚醛;环氧树脂;静电纺丝;碳纤维
boron phenolic aldehyde;epoxy resin;electrospinning;carbon fibre
《纺织工程学报》 2024 (003)
9-18 / 10
教育厅科研计划项目(Q20171606);湖北省重点研发计划项目(2022BAD025).
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