| 聚丙烯/新型聚烯烃弹性体皮芯型复合纤维的纺制 |
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| 引用本文： | 彭莹莹,王燕萍,王依民,倪建华.聚丙烯/新型聚烯烃弹性体皮芯型复合纤维的纺制[J].合成纤维,2009,38(2). |
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| 作者姓名： | 彭莹莹 王燕萍 王依民 倪建华 |
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| 作者单位： | 东华大学材料学院,上海,201620 |
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| 摘 要： | 对新型聚烯烃弹性体Vistamaxx进行了差示扫描量热(DSC)、核磁共振(NMR)分析,结果表明:弹性体Vistamaxx的软化点较低,熔点与聚丙烯接近,主要由等规聚丙烯组成,其中含有少量聚乙烯,这些乙烯单元的存在破坏了原有丙烯单元的结晶,使其具有较好的弹性。以Vistamaxx为芯层、聚丙烯为皮层,采用熔融纺丝工艺制备出了聚丙烯/Vistamaxx皮芯复合纤维,确定了最佳熔融纺丝工艺:皮芯复合比为50/50,纺丝温度为230℃,泵供量为12~20g/min,卷绕速度可在800~1000m/min内调节。与聚丙烯纤维相比,此皮芯复合纤维具有更好的韧性。
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| 关 键 词： | 聚烯烃弹性体 聚丙烯 皮芯复合纤维 韧性 |
Sheath/core Composite Fiber Prepared by Polypropylene and New Polyolefin Elastomer |
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| PENG Ying-ying,WANG Yan-ping,WANG Yi-min,NI Jian-hua.Sheath/core Composite Fiber Prepared by Polypropylene and New Polyolefin Elastomer[J].Synthetic Fiber in China,2009,38(2). |
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| Authors: | PENG Ying-ying WANG Yan-ping WANG Yi-min NI Jian-hua |
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| Affiliation: | College of Materials Science and Engineering;Donghua University;Shanghai 201620;China |
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| Abstract: | New polyolefin elastomer (Vistamaxx) was characterized by DSC and NMR. The results showed that Vistamaxx was composed mainly of isotactic propylene chains and it also contained a few ethylene chains. Vistamaxx had low soften temperature. However, melting temperature of Vistamaxx was almost the same as that of polypropylene. A few ethylene chains destroied the crystallinity of polypropylene and made copolymer better elasticity. Sheath/core composite fiber was melt spun with Vistamaxx as core component and po... |
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| Keywords: | polyolefin elastomer polypropylene sheath/core composite fiber toughness |
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