浅色聚酰胺6抗静电纤维母粒制备及性能
Preparation and properties of light-colored polyamide 6 antistatic fiber masterbatch
马倩 1盛平厚 2郑晓頔 2李睿 2刘明烁 3韩朝阳 2王世龙 3丁筠3
作者信息
- 1. 北京化工大学材料科学与工程学院,北京 100029;中国纺织科学研究院有限公司生物源纤维制造技术国家重点实验室,北京 100025
- 2. 中国纺织科学研究院有限公司生物源纤维制造技术国家重点实验室,北京 100025
- 3. 北京化工大学材料科学与工程学院,北京 100029
- 折叠
摘要
使用硬脂酸(SA)改性纳米锑掺杂二氧化锡包覆二氧化钛(ATO@TiO2)作为浅色导电填料,采用熔融共混法制备浅色抗静电聚酰胺6(PA6)纤维母粒.通过扫描电子显微镜、电阻率测试仪、测色仪、热重分析仪等研究ATO@TiO2在PA6基体中的分散情况及其对母粒导电性、白度、热稳定性的影响.实验结果表明,SA改性剂显著提高了ATO@TiO2的疏水性,改善了ATO@TiO2与PA6基体相容性,并提高了ATO@TiO2在PA6中的分散均匀性;当SA质量分数为0.5%时,SA改性ATO@TiO2(SA-ATO@TiO2)接触角显著增加到135.65°.当SA-ATO@TiO2体积分数为50%时,显著降低了PA6母粒电阻率,展现出优异的导电性.此外,SA-ATO@TiO2的加入改善了PA6母粒的热稳定性,提高了PA6冷结晶温度.颜色测试表明,尽管SA-ATO@TiO2含量的增加使母粒明度略有下降,但材料仍保持较好的白度.采用复合纺丝法制备浅色PA6抗静电纤维,通过电阻率测试仪、单丝强力仪等研究改性前后ATO@TiO2纤维母粒对纤维力学性能和抗静电性能的影响.实验结果表明,与ATO@TiO2相比,SA-ATO@TiO2制备的浅色PA6抗静电纤维在保持纤维强度的同时显著地降低了纤维单位电阻,纤维单位电阻下降为4.24×109 Ω/cm.
Abstract
Nano titanium dioxide coated with antimony-doped tin oxide(ATO@TiO2)functionalized with stearic acid(SA)was employed as a light-colored conductive filler for the preparation of light-colored antistatic polyamide 6(PA6)fiber masterbatch-es via melt blending.The dispersion of ATO@TiO2 in the PA6 matrix and its effects on the conductivity,whiteness,and thermal stability of the masterbatches were investigated by using scanning electron microscopy,resistivity tester,colorimeter,and thermo-gravimetric analysis.The experimental results indicate that SA modifier significantly enhances the hydrophobicity of ATO@TiO2,the compatibility with PA6 matrix and the dispersion uniformity of ATO@TiO2 in PA6.With SA content at 0.5wt%,the water contact angle of SA-modified ATO@TiO2(SA-ATO@TiO2)markedly rises to 135.65°.When the volume fraction of SA-ATO@TiO2 is 50%,the resistivity of the PA6 masterbatches is markedly reduced,demonstrating excellent conductivity.Furthermore,the incor-poration of SA-ATO@TiO2 augments the thermal stability of the PA6 masterbatches and increases the cold crystallization tempera-ture of PA6.Color tests show that although the brightness of the masterbatches slightly decreases with an increase in SA-ATO@TiO2 contents,the material maintains a good level of whiteness.Light-colored antistatic PA6 fibers were prepared using the composite spinning method,the impact of pre-and post-treatment ATO@TiO2 fiber masterbatches on fiber properties was investigated by using single fiber tensiometer and resistivity tester.The findings demonstrate that compared to ATO@TiO2,the fibers produced from SA-ATO@TiO2 greatly reduce the resistance per unit length of the fibers while maintaining their strength,with the resistance decreasing to 4.24×109 Ω/cm.
关键词
表面改性/聚酰胺6/抗静电母粒/浅色/纳米ATO@TiO2Key words
surface modification/polyamide 6/antistatic masterbatch/light-colored/nano ATO@TiO2引用本文复制引用
出版年
2024
NETL
NSTL
万方数据