一步法熔体直纺高强度尼龙66工业丝工艺研究 |
Study on One Step Melt Direct Spinning Process of High Tenacity Nylon 66 Industry Yarn |
投稿时间:2018-06-20 修订日期:2018-06-20 |
DOI:10.12136/j.issn.1000-890X.2019.03.0221 |
中文关键词: 尼龙66工业丝 高强度 熔体直纺 一步法连续聚合 高粘度聚合物 |
英文关键词: nylon 66 industry yarn high tenacity melt direct spinning process one step continuous polymerization high viscosity polymer |
基金项目:国家重点研发计划专项(重点基础材料技术提升与产业化)(2016YFB0303003) |
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中文摘要: |
研究一步法熔体直纺高强度尼龙66工业丝工艺技术。通过改进聚合工艺,尼龙66聚合物纺丝相对粘度提高至83~85。优化纺丝工艺参数如下:纺丝箱温度 (300±1) ℃,侧吹风温度 15 ℃,侧吹风速度 0.9~1.1 m·s-1,上油率 (1.6±0.2)%,牵伸温度 190~195 ℃,牵伸比 5.85~5.95,制得的尼龙66工业丝断裂强度达到91.93 cN·tex-1。 |
英文摘要: |
The one step melt spinning process of high tenacity nylon 66 industry yarn was investigated. The relative viscosity of the nylon 66 polymer increased to 83~85 by stepwise upgrading of the polymerization section. The spinning process parameters optimized were as follows:spinning box temperature (300±1) ℃,quenching air temperature 15 ℃,quenching air speed 0.9~1.1 m·s-1,oil loading rate (1.6±0.2)%,draw temperature 190~195 ℃,and draw ratio 5.85~5.95. The tenacity of nylon 66 industry yarn reached 91.93 cN·tex-1. |
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