聚丙烯腈纤维亲水改性对密封材料性能的影响
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摘要
本试验研究了聚丙烯腈纤维亲水改性对密封材料压缩回弹性能的影响。研究发现,当聚丙烯腈纤维添加量20份时,压缩率为9.52%,回弹率为28%;对聚丙烯腈纤维进行亲水改性,可有效提高密封材料回弹性能;随着NaOH浓度、水浴温度、反应时间的增大,密封材料压缩率小幅度下降,回弹率呈上升趋势,回弹率最高可达36.49%。3因素中,NaOH质量分数对密封材料压缩回弹性能影响最大。
The effect of hydrophilic modification of polyacrylonitrile fiber on compressibility and resilience of sealing material was studied. The results indicated when the amount of polyacrylonitrile fiber is 20 parts, the compression rate is 9.52% and the rebound rate is 28%. The resilience of sealing materials is improved effectively by modified hydrophilic modification of polyacrylonitrile fibers. With the increasing of NaOH concentration,water bath temperature and reaction time, the compression ratio decreases slightly, and the rebound rate shows an upward trend, with the highest rebound rate is 36.49%. Among three factors, NaOH concentration is the greatest influence on the compressive resilience of sealing materials.
The effect of hydrophilic modification of polyacrylonitrile fiber on compressibility and resilience of sealing material was studied. The results indicated when the amount of polyacrylonitrile fiber is 20 parts, the compression rate is 9.52% and the rebound rate is 28%. The resilience of sealing materials is improved effectively by modified hydrophilic modification of polyacrylonitrile fibers. With the increasing of NaOH concentration,water bath temperature and reaction time, the compression ratio decreases slightly, and the rebound rate shows an upward trend, with the highest rebound rate is 36.49%. Among three factors, NaOH concentration is the greatest influence on the compressive resilience of sealing materials.
引文
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[3]章羊杰,夏新兴,黄善聪,等.柔性石墨对橡胶密封纸板性能影响的研究[J].中华纸业,2018,39(20):15-19.
[4]李金宝,康阳,夏新兴.腈纶纤维在密封纸板中的应用研究[J].陕西科技大学学报(自然科学版),2015,33(4):13-17.
[5]谢苏江,蔡仁良.无石棉垫片材料基本性能的研究进展[J].密封技术与产品,2003(6):85-87.
[6]赵涛.染整工艺与原理(下册)[M].北京:中国纺织出版社,2009.
[7]成艳娜,夏新兴,陈务平.蛇纹石细小纤维性质及其对密封纸板性能的影响[J].非金属矿,2010,33(2):48-50.