With the treatment of PSA needle-punched nonwoven fabric in the sulphuric acid solution, the broken strength of PSA fiber decreases slightly and the fineness of PSA fiber gets smaller.
芳砜纶针刺非织造布经过硫酸溶液处理后，纤维断裂强度略有下降，纤维线密度减小； 非织造布的尺寸稳定性很好，而其断裂强力却有明显增加。
With the treatment of PSA needle-punched nonwoven fabric in the sulphuric acid solution, the broken strength of PSA fiber decreases slightly and the fineness of PSA fiber gets smaller.
芳砜纶针刺非织造布经过硫酸溶液处理后，纤维断裂强度略有下降，纤维线密度减小； 非织造布的尺寸稳定性很好，而其断裂强力却有明显增加。
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