Negative Air Ion Release and Far Infrared Emission Properties of Polyethylene terephthalate/Germanium Composite Fiber

PET/germanium composite fibers that with negative air ion release and far infrared emission properties were prepared by adding germanium particles to polyethylene terephthalate (PET) and melt-spinning. The morphology, effect of the germanium content on the negative air ion release, far infrared emission, thermal and mechanical properties of the fibers were investigated. The germanium particles uniformly disperse in the PET fibers when the concentration ranged from 1% to 3 percent. The value of the negative air ions released by the PET/germanium composite fibers increased with increasing content of germanium and reached 1470 ions/cm-3 at 3% germanium concentration. The highest far infrared normal emissivity (0.9) was obtained at 3% germanium concentration. The TG and DSC analysis revealed that the two heat histories used had little effect on the PET. The crystallinity of the composite fibers decreased with increasing germanium content. Water fastness testing showed that the PET/germanium composite fibers had excellent and durable negative air ion release and far infrared emission properties. The breaking strength of the fibers decreased with increasing of the germanium content.

Download Full-text

Starch-Based Fishing Composite Fiber and Its Degradation Behavior

International Journal of Polymer Science ◽

10.1155/2020/9209108 ◽

2020 ◽

Vol 2020 ◽

pp. 1-10

Author(s):

Wenwen Yu ◽

Fei Yang ◽

Lei Wang ◽

Yongli Liu ◽

Jiangao Shi

Keyword(s):

Melt Spinning ◽

Starch Content ◽

Reactive Extrusion ◽

Composite Fiber ◽

Mechanical Analysis ◽

Composite Fibers ◽

Reactive Blending ◽

Dynamic Mechanical ◽

One Step ◽

Β Relaxation

The starch-based fishing composite fibers were prepared by one-step reactive extrusion and melt spinning. The effects of starch contents on the microstructural, thermal, dynamic mechanical, and mechanical properties of starch-based composite fibers were studied. And the degradation behaviors in soil of the fibers were also investigated. The compatibility between starch and HDPE is improved significantly by grafting maleic anhydride (MA) using one-step reactive blending extrusion. As the starch content increased, the melting temperature and the crystallinity of the fibers gradually decreased due to fluffy internal structures. Dynamic mechanical analysis showed that the transition peak α in the high-temperature region was gradually weakened and narrowed with increasing starch content; moreover, a shoulder appeared on the low-temperature side of the α peak was assigned to the β-relaxation related to starch phase. In addition, the mechanical results showed the significant decrease in the breaking strength and increase in the elongation at break of the starch-based composite fibers as the starch content increased. After degradation in soil for 5 months, the surface of the composite fibers had been deteriorated, while flocculent layers were observed and a large number of microfibers appeared. And the weight loss rate of the starch-based composite fibers (5.2~34.8%) significantly increased with increasing starch content (50~90 wt%).

Download Full-text

Preparation and Far Infrared Emission Properties of Natural Sepiolite Nanofibers

Journal of Nanoscience and Nanotechnology ◽

10.1166/jnn.2010.2116 ◽

2010 ◽

Vol 10 (3) ◽

pp. 2017-2022 ◽

Cited By ~ 20

Author(s):

Fei Wang ◽

Jinsheng Liang ◽

Qingguo Tang ◽

Liwei Li ◽

Lijun Han

Keyword(s):

Far Infrared ◽

Infrared Emission ◽

Emission Properties ◽

Sepiolite Nanofibers

Download Full-text

Effect of the Dosage of Tourmaline on Far Infrared Emission Properties of Tourmaline/Glass Composite Materials

Journal of Nanoscience and Nanotechnology ◽

10.1166/jnn.2016.11844 ◽

2016 ◽

Vol 16 (4) ◽

pp. 3899-3903 ◽

Cited By ~ 4

Author(s):

Hongchen Zhang ◽

Junping Meng ◽

Jinsheng Liang ◽

Jie Liu ◽

Zhaoyang Zeng

Keyword(s):

Particle Size ◽

Composite Materials ◽

Raw Materials ◽

Far Infrared ◽

Infrared Emission ◽

Infrared Emissivity ◽

Glass Composite ◽

Emission Properties ◽

The Fourier Transform ◽

Glass Powders

Tourmaline/glass composite materials were prepared by sintering at 600 °C using micron-size tourmaline mineral and glass powders as raw materials. The glass has lower melting point than the transition temperature of tourmaline. The Fourier transform infrared spectroscopy showed that the far infrared emissivity of composite was significantly higher than that of either tourmaline or glass powders. A highest far infrared emissivity of 0.925 was obtained when the dosage of tourmaline was 10 wt%. The effects of the amount of tourmaline on the far infrared emission properties of composite was also systematically studied by field emission scanning electron microscope and X-ray diffraction. The tourmaline phase was observed in the composite, showing a particle size of about 70 nm. This meant that the tourmaline particles showed nanocrystallization. They distributed homogenous in the glass matrix when the dosage of tourmaline was not more than 20 wt%. Two reasons were attributed to the improved far infrared emission properties of composite: the particle size of tourmaline-doped was nanocrystallized and the oxidation of Fe2+ (0.076 nm in radius) to Fe3+ (0.064 nm in radius) took place inside the tourmaline-doped. This resulted in the shrinkage of unit cell of the tourmaline in the composite.

Download Full-text

Effect of nano-sized cerium–zirconium oxide solid solution on far-infrared emission properties of tourmaline powders

Modern Physics Letters B ◽

10.1142/s0217984915501833 ◽

2015 ◽

Vol 29 (30) ◽

pp. 1550183 ◽

Cited By ~ 6

Author(s):

Bin Guo ◽

Liqing Yang ◽

Weijie Hu ◽

Wenlong Li ◽

Haojing Wang

Keyword(s):

Photoelectron Spectroscopy ◽

Raw Materials ◽

Reference Sample ◽

Far Infrared ◽

Infrared Emission ◽

Emission Property ◽

Precipitation Method ◽

Xps Spectra ◽

X Ray ◽

Emission Properties

Far-infrared functional nanocomposites were prepared by the co-precipitation method using natural tourmaline [Formula: see text], where [Formula: see text] is [Formula: see text], [Formula: see text], [Formula: see text], or vacancy; [Formula: see text] is [Formula: see text], [Formula: see text], [Formula: see text], [Formula: see text], [Formula: see text], [Formula: see text], [Formula: see text], [Formula: see text], or [Formula: see text]; [Formula: see text] is [Formula: see text], [Formula: see text], [Formula: see text], or [Formula: see text]; [Formula: see text] is [Formula: see text], [Formula: see text]; and [Formula: see text] is [Formula: see text], [Formula: see text], or [Formula: see text] powders, ammonium cerium(IV) nitrate and zirconium(IV) nitrate pentahydrate as raw materials. The reference sample, tourmaline modified with ammonium cerium(IV) nitrate alone was also prepared by a similar precipitation route. The results of Fourier transform infrared spectroscopy show that tourmaline modified with Ce and Zr has a better far-infrared emission property than tourmaline modified with Ce alone. Through characterization by transmission electron microscopy (TEM), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS), the mechanism for oxygen evolution during the heat process in the two composite materials was systematically studied. The XPS spectra show that [Formula: see text] ratio inside tourmaline modified with Ce alone can be raised by doping Zr. Moreover, it is showed that there is a higher [Formula: see text] ratio inside the tourmaline modified with Ce and Zr than tourmaline modified with Ce alone. In addition, XRD results indicate the formation of [Formula: see text] and [Formula: see text] crystallites during the heat treatment and further TEM observations show they exist as nanoparticles on the surface of tourmaline powders. Based on these results, we attribute the improved far-infrared emission properties of Ce–Zr doped tourmaline to the enhanced unit cell shrinkage of the tourmaline arisen from much more oxidation of [Formula: see text] to [Formula: see text] inside the tourmaline caused by the change in the catalyst redox properties of [Formula: see text] brought about by doping with [Formula: see text]. In all samples, tourmaline modified with 7.14 wt.% Ce and 1.86 wt.% Zr calcined at 800[Formula: see text]C for 5 h has the best far-infrared emission property with the maximum emissivity value of 98%.

Download Full-text

Preparation and characterization of Taichi masterbatch/polyester functional composite fiber

Textile Research Journal ◽

10.1177/0040517519878796 ◽

2019 ◽

Vol 90 (7-8) ◽

pp. 731-743

Author(s):

Xiangji Wu ◽

Weihong Gao ◽

Xiaohong Shen ◽

Wei Liu ◽

Weiping Du

Keyword(s):

Infrared Radiation ◽

Far Infrared ◽

Composite Fiber ◽

Composite Fibers ◽

X Ray Diffraction ◽

Functional Composite ◽

Functional Textiles ◽

Potential Market ◽

Nanoparticle Content ◽

Far Infrared Radiation

As a natural ore, Taichi stone brings potential market value and social value due to its health-care functions, such as releasing far-infrared and anti-ultraviolet (anti-UV) and anti-bacterial functions. In this study, Tachi masterbatch (containing 10% Tachi nanoparticles)/polyester (PET) functional composite fiber was prepared by electro-spinning. To study the effect of nanoparticle content on the composite fibers, five spinning solutions with different nanoparticle contents were mixed and electrospun. The spun fibers were then characterized by using scanning electron microscopy, Fourier transform infrared spectroscopy, X-ray diffraction, thermogravimetric analysis, and far-infrared and UV testing devices, respectively. The result shows that when the Taichi nanoparticle content is 3%, the composite fiber membranes will have a better dispersion, the fiber is more uniform, and smaller fiber diameter can be obtained. Compared with the pure PET fiber, the composite fibers have an improved far-infrared radiation performance and anti-UV performance. The highest nanoparticle content of 7% composite fiber gives the best far-infrared radiation and anti-UV performance. The newly developed Taichi masterbatch/PET functional composite fibers have potential application for the development of multi-functional textiles and apparels in the future.

Download Full-text

Far-Infrared Emission Properties and Thermogravimetric Analysis of Ceramic-Embedded Polyurethane Films

Polymers ◽

10.3390/polym13050686 ◽

2021 ◽

Vol 13 (5) ◽

pp. 686

Author(s):

Ashik Md Faisal ◽

Fabien Salaün ◽

Stéphane Giraud ◽

Ada Ferri ◽

Yan Chen ◽

...

Keyword(s):

Mechanical Properties ◽

Thermogravimetric Analysis ◽

Far Infrared ◽

Infrared Emission ◽

Integrating Sphere ◽

Ceramic Particles ◽

Emission Properties ◽

Emissive Property ◽

Physical Tests ◽

Sonication Technique

The far-infrared ray (FIR) is one kind of electromagnetic wave employed for numerous bio-interactive applications such as body thermoregulation, infrared therapy, etc. Tuning the FIR-emitting property of the functional textile surface can initiate a new horizon to utilize this property in sportswear or even smart textiles. Ceramic particles were studied for their unique ability to constantly emit FIR rays. The purpose of this research is to characterize the FIR emission properties and the thermogravimetric analysis of ceramic-embedded polyurethane films. For this purpose, ceramic particles such as aluminum oxide, silicon dioxide, and titanium dioxide were incorporated (individually) with water-based polyurethane (WPU) binder by a sonication technique to make a thin layer of film. Significant improvement in FIR emissive property of the films was found when using different ceramic particles into the polyurethane films. Reflection and transmission at the FIR range were measured with a gold integrating sphere by Fourier-transform infrared (FTIR) spectrometer. The samples were also characterized by thermogravimetric analysis (TGA). Different physical tests, such as tensile strength and contact angle measurements, were performed to illustrate the mechanical properties of the films. The study suggested that the mechanical properties of the polyurethane films were significantly influenced by the addition of ceramic particles.

Download Full-text

Effect of Heat Treatment on Far Infrared Emission Properties of Tourmaline Powders Modified with a Rare Earth

Journal of the American Ceramic Society ◽

10.1111/j.1551-2916.2008.02487.x ◽

2008 ◽

Vol 91 (8) ◽

pp. 2588-2592 ◽

Cited By ~ 20

Author(s):

Dongbin Zhu ◽

Jinsheng Liang ◽

Yan Ding ◽

Gang Xue ◽

Lihua Liu

Keyword(s):

Heat Treatment ◽

Rare Earth ◽

Far Infrared ◽

Infrared Emission ◽

Emission Properties

Download Full-text

Influence of Fluorinated Illite on Thermal, Antibiotic and Far-infrared Emission Properties of Polypropylene Non-woven Fibers

Polymer Korea ◽

10.7317/pk.2013.37.1.86 ◽

2013 ◽

Vol 37 (1) ◽

pp. 86-93

Author(s):

Jinhoon Kim ◽

Ji Sun Im ◽

Kyeong-Won Seo ◽

Young-Seak Lee

Keyword(s):

Far Infrared ◽

Infrared Emission ◽

Emission Properties

Download Full-text

Application of amber filler for production of novel polyamide composite fiber

Textile Research Journal ◽

10.1177/0040517515621130 ◽

2016 ◽

Vol 86 (20) ◽

pp. 2127-2139 ◽

Cited By ~ 4

Author(s):

Sergejs Gaidukovs ◽

Inga Lyashenko ◽

Julija Rombovska ◽

Gerda Gaidukova

Keyword(s):

Melt Spinning ◽

Polyamide 6 ◽

Composite Fiber ◽

Composite Fibers ◽

Force Microscopy ◽

Atomic Force ◽

Medical Textiles ◽

Time Scanning ◽

New Type ◽

Average Size

The present investigation is connected to the field of medical textiles, which includes the development and application of composite fibers. The aim of the paper is the processing and investigation of polyamide 6 (PA6)–amber composite fibers. The use of amber filler for the preparation of a new type of polymer composite fiber is described in detail for the first time. Scanning electron microscopy (SEM), atomic force microscopy (AFM) and granulometry testing were used to test the structure and the size of the prepared amber particles. The obtained amber particles were characterized by an average size of up to 3 µm and a regular shape. Fourier transform infrared (FTIR) spectroscopy investigations showed that amber in the dispersed state does not change its chemical structure and contains one of the active compounds—succinic acid. The effect of the amber filler inclusion on the melt-spinning routes of fully drawn yarns (FDY) and pre-oriented yarns (POY) was determined. Amber composite fibers general use is medical fabric (compression socks and tights); it is biocompatible with skin cells.

Download Full-text