Two-Stage Drawing of Poly(ethylene terephthalate) Fibers Using CO_2

机译：使用CO_2的聚对苯二甲酸乙二醇酯纤维的两阶段拉伸

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Fibers of poly(ethylene terephthalate) were drawn by a two stage drawing technique: drawing at 23℃ in liquid CO_2 followed by hot drawing ≥ 200℃ at a constant strain rate. CO_2 pressure dramatically affected the drawing behavior during the first stage. At 200℃, the maximum achievable draw ratios (TDRs) for the CO_2 treated and untreated fibers were 12.2 and 8.2 respectively. The highest modulus and strength values for the treated fibers were about 10% higher compared to untreated fibers. When the drawing temperature was increased in the second stage, the fibers had high crystallinity values (>60%) and a much lower amorphous orientation.

机译：聚对苯二甲酸乙二醇酯的纤维是通过两阶段拉伸技术拉伸的：在液态CO_2中于23℃下拉伸，然后在恒定应变率下≥200℃进行热拉伸。在第一阶段，CO_2压力极大地影响了拉伸行为。在200℃下，经CO_2处理和未经处理的纤维的最大可拉伸比（TDRs）分别为12.2和8.2。与未处理的纤维相比，处理过的纤维的最高模量和强度值高约10％。当在第二阶段中提高拉伸温度时，纤维具有高结晶度值（> 60％）和低得多的无定形取向。

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《Conference on Green Engineering, null》||p.111-123|共13页
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Terry Hobbs; Alan J. Lesser;
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Polymer Science and Engineering Department, University of Massachusetts, Amherst, MA 01003;

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正文语种 eng
中图分类环境保护管理;
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1. Preparation of high performance poly(ethylene terephthalate) fibers: two-stage drawing using high pressure CO2 [J] . Hobbs T., Lesser AJ. Polymer: The International Journal for the Science and Technology of Polymers . 2000,第16期

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Two-Stage Drawing of Poly(ethylene terephthalate) Fibers Using CO_2

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