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对聚酯仿真丝纤维的丝鸣化处理进行了探讨,取得以下结果:(1)制备了具有较好发声效果的聚酯纤维丝鸣处理液;(2)制订了相应的工艺措施以提高丝鸣处理效果的耐水洗性能;(3)在同样的处理条件下,模量较低、纤度较小的异形CDPET纤维(阳离子可染聚酯纤维)具有较好的发声效果. 相似文献
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本文从分析聚酯碱水解的多相反应动力学着手,建立了聚酯碱水解的动力学方程,在此基础上,导出了不同条件下聚酯的碱量、去皮及耗碱公式. 相似文献
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本文对丝鸣的粘滑振动进行了理论分析,建立了丝鸣波动方程和粘滑振动方程,并由此确认:1.粘滑周期可由所导出的理论方程予以预测,其实验值和理论值基本吻合.2.其滑动周期、滑动位移与弦长成正比,平均滑动速度与弦长无关,而粘附周期则与驱动速度成反比.3.产生粘滑运动的临界条件应该是μ_1-μ_k>0. 相似文献
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本文安排了部分动力学实验,对第一部分所导出的一些公式进行了验证,并对有关的实验现象进行了讨论. 相似文献
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拱坝坝踵区的开裂问题一直是水利施工和拱坝潜在危险的根源。笔者经过多年现场旖工摸索,总结了拱坝坝踵开裂的主要成因,并结合实际情况提出了几点防治措施。 相似文献
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武谦 《苏州大学学报(工科版)》1993,(Z2)
The effect of the supermoleclar structure of polyester on the effective alkali hy-drolysisis rate constant k has been investigated in the paper.That the average non-crvstal line volume around per crystal grain has a close relation to the k is proved byexperiments.A simple and effctive method for assessing what effect of the super-molecular structure on the k by its CDT value( Critical Dissolution Time) has beenput forward. 相似文献
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In this paper the mechanism producing scrooping sound has been discussedtheoretically.It has been recognized that the continuous stick-slip vibrationhaving a certain period and the bigger △E(△E——enery released by stick-slipvibration at one time)are the requisite and surfficient conditions producingscrooping sound.For fiber sample,its surface properties and internal structureare two principal factors influencing scrooping sound. Considering the surface properties of polyester fiber after scrooping treatmentare the synthetic reflection of the properties used treatment reagents and thesurface properties of the fiber,how selecting proper reagents for scroopingtreatment would be the key factor influencing the scrooping effect.Sometreatment solutions having better scrooping effect have been obtained in the paper. In order to cause better scrooping effect,not only the treatment reagent andsurface properties of the fiber,but also the internal structure of the fiber must beconsidered,It has been shown in prac 相似文献
