Synthesis and optimization of copper sulfide‐coated electrically conducting poly(acrylonitrile) fibers

Abstract

In this research work, coating of acrylic fibers (fibers spun from poly acrylonitrile) with copper sulfide was investigated. Surface of the acrylic fibers were coated with an insoluble conducting copper sulfide layer. One‐step dipping method was carried out. Acrylic fibers were treated in a bath containing divalent copper ions, a reducing agent, which is capable of reducing the divalent copper ions to a monovalent copper ions and a sulfur‐containing compound. This treatment resulted in a reduction of electrical resistance to 1 × 109 that of an almost infinite resistance for the untreated fibers. The influence of some parameters such as concentration of copper (II) sulfate, hydroxylamine sulfate, sodium thiosulfate, and temperature of treatment bath were also investigated. A second reducing material such as sodium dithionite was used to improve the electrical conductivity of the fibers. The amount of reacted copper was measured by atomic absorption technique. The surface properties of the coated‐acrylic fibers were studied using scanning electron microscopy (SEM). Within the experimental conditions, a solution containing 1.2 g/dm3 copper (II) sulfate, 1.6 g/dm3 hydroxylamine sulfate, 3.6 g/dm3 sodium thiosulfate, and 3 g/dm3 sodium dithionite was selected as a suitable formulation. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci, 2007

Effect of swelling pretreatment on the deposition structure on electroless copper of polyacrylonitrile nanocomposites for electromagnetic interference shielding

“…The conductive coppersulfide compound deposition coats on the surface of substrate, the copper-sulfide PAN composite has a good conductivity property. [18][19][20] X-ray diffraction and TEM The X-ray diffraction pattern is used to check out the composition and the structure of copper-sulfur deposition. Because PAN substrate diffraction pattern affect the analysis of Cu x S y deposition, grazing incident angle X-ray diffraction (GIA-XRD) analysis Figure 1(b), so the depositions are nearly amorphous CuS.…”

“…In this study, the swelling pretreatment of electroless copper plating affect the structure, morphology and EMI SE of the composites. The conductive copper‐sulfide compound deposition coats on the surface of substrate, the copper‐sulfide PAN composite has a good conductivity property 18–20…”

Preparation of Heat-Resistant, Electrically Conductive Polyacrylonitrile Films and Fibers by the Hydroxylamine/Hydrazine Pretreatment and Copper Sulfide Coating

“…초기에 개발된 도전성 원사(도전사)는 도전성이 금속에 비 해 현저히 떨어져 대전방지나 전자파 차폐 등의 용도에 국한 되어 사용되었으나, 점차 도전성이 크게 향상되어 휴대전화 나 MP3 및 게임기 등을 의류에 부착시키는 분야나 각종 센 서를 의류에 삽입시켜 의료 정보를 관련 종사자들에게 전달 하는 목적으로 활용하는 단계에 이르고 있다. [1][2][3][4] 최근에는 고 분자 소재로는 주로 폴리피롤, 3 폴리아닐린, 5,6 폴리아크릴로 니트릴(PAN)이, 7,8 복합재료나 코팅법을 이용하는 방법에는 주로 CNT와 같은 탄소소재나 4,9,10 참 고 문 헌…”

Antimicrobial Properties of Acrylic Fabrics Dyed with Direct Dye and a Copper Salt

“…It seemed that oxygen atoms in methylacrylate groups could form a coordination bond with copper ions (II). The formed bonds between copper ions and nitrogen or oxygen atom generally appear in complexes at frequencies lower than 500 cm -1 , their recording and assignment being difficult [20][21][22][23]. Table 5 presents the fastness properties to washing and light of mordanted-dyed acrylic fabric.…”