| PDS与抗氧剂共混聚丙烯纺丝和长丝的抗老化效能研究 |
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| 引用本文： | 梁文忠,周祥凤.PDS与抗氧剂共混聚丙烯纺丝和长丝的抗老化效能研究[J].合成纤维工业,1991,14(5):36-40. |
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| 作者姓名： | 梁文忠 周祥凤 |
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| 摘 要： | 用PDS、PDS-抗氧剂(168,1010,264)和紫外吸收剂(UV-327)-抗氧剂,分别与纤维级聚丙烯(M_?=20万)共混,于230℃造粒,粒料各于260,290,310℃进行纺丝。以强度保持率对长丝的抗老化作了跟踪试验,其抗大气老化效能是.PDS-抗氧剂>PDS>紫外吸收剂-抗氧剂;在110℃的抗热氧老化效能是:PDS-抗氧剂>紫外吸收剂-抗氧剂。
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| 关 键 词： | 复合稳定剂 纺丝温度 长丝抗大气老化 |
STUDIES ON THE SPINNING OF POLYPROPYLENE BLENDED WITH PDS AND ANTIOXIDANTS AND THE WEATHER STABILIZING EFFECTS OF FILAMENT |
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| Abstract: | Unstabilized polypropylene powder(M_η=20×10~4)was blended with PDS(a copolymerof styrene-2,2,6,6-tetramethyl-4-piperidyl methacrylate reacted with styrene in satur-ated hydrocarbon), PDS-antioxidants and UV-absorber-antioxidants respectively.The blends were extruded and pelletized at 230℃. The pellets were spun at about260℃,290℃ and 312℃ respectively. Through the observation of the strength retentionrate of yarn, it is found that the weather stabilizing efficiency decreases in theorder: PDS-antioxidants>PDS>UV-absorber-antioxidants, and the thermal stabili-zing efficiency at 110℃ decreases as: PDS-antioxidants>UV-absorber-antioxidants. |
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| Keywords: | composite stabilizer spinning temperature weather stabilizing of filament |
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