摘要
为解决纳米铜抗菌剂在纤维中分散性、界面相容性差的问题,采用油酸对纳米球形铜抗菌剂进行包覆处理,并与聚酰胺6(PA6)基体共混挤出造粒制得抗菌防螨PA6切片,再经熔融单组分纺丝和熔融复合纺丝制得铜改性抗菌防螨PA6纤维。对铜抗菌剂的形貌结构和界面相容性,抗菌防螨PA6切片的热稳定性和可纺性以及纤维的铜含量、力学性能和抗菌防霉防螨性能进行分析。结果表明:油酸包覆球形铜抗菌剂的分散性较好,且与PA6基体相容性良好,抗菌防螨PA6切片的热稳定性、可纺性良好;铜改性抗菌防螨PA6纤维的颜色均匀性一致,纤维制成率高达88%,铜改性PA6拉伸变形丝的断裂伸长率为29.95%,断裂强度达到4.43 cN/dtex;洗涤50次前后铜改性抗菌防螨PA6纤维对白色念珠菌、金黄色葡萄球菌、大肠杆菌的抑菌率均大于99%,其织物防霉等级达到0级,螨虫驱避率达到89%,抗菌防霉防螨性能高效耐久。
Objective The application of copper antimicrobial agent in fiber materials is faced with three major problems.Firstly,the functional nano powder has serious agglomeration and poor compatibility with polymer materials,which makes it difficult to disperse evenly.Secondly,copper is easy to be oxidized and discolored,resulting in poor stability and uniformity of fiber color.Thirdly,spinnability and mechanical properties of fiber decrease with the increase of antimicrobial agent content,therefore it is difficult to increase the content of copper antimicrobial agent in the fiber.It is important to improve the dispersion,interfacial compatibility,and antioxidant properties of copper antimicrobial agent in fibers.Method In this study,the nano spherical copper antimicrobial agent was coated with oleic acid.Two types of copper modified PA6 antimicrobial masterbatch containing 1.1%and 2.1%copper antimicrobial agent were obtained by squeezing granulation.Copper modified PA6 antimicrobial and anti-mite fibers were obtained by melt spinning and composite spinning,respectively.The structure,morphology and interfacial compatibility of copper antimicrobial agent,thermal stability and spinnability of antimicrobial masterbatch,copper content,mechanical properties,antimicrobial,and anti-mite properties of fiber and fabric samples were analyzed.Results The diffraction peaks were found sharp with no other impurity peaks appearing,indicating that the sample was well crystallized and was still pure after modification.No obvious weight loss is found during the dehydration at about 100℃,which indicated satisfactory hydrophobicity of the sample.Sample C1 showed about 0.4%of weight loss at 300℃,and its thermal stability met the requirement of melt spinning,and the dispersion was good without large-size agglomeration under the electron microscope and showed good hydrophobicity with water contact angle of 146°,which was consistent with the TG results.Whether it is melted spinning or composite spinning,pre-oriented yarn sample had high fi
作者
郑晓頔
盛平厚
蒋佳岑
李睿
焦红娟
邱志成
ZHENG Xiaodi;SHENG Pinghou;JIANG Jiacen;LI Rui;JIAO Hongjuan;QIU Zhicheng(State Key Laboratory of Biobased Fiber Manufacturing Technology,China Textile Academy,Beijing 100025,China;College of Light Industry and Textiles,Inner Mongolia University of Technology,Hohhot,Inner Mongolia 010081,China)
出处
《纺织学报》
EI
CAS
CSCD
北大核心
2024年第3期19-27,共9页
Journal of Textile Research
关键词
球形铜抗菌剂
聚酰胺6纤维
油酸
可纺性
抗菌性能
防螨性能
spherical copper antimicrobial agent
polyamide 6 fiber
oleic acid
spinnability
antimicrobial property
anti-mite property
