Papers by Keyword: Antistatic Property

Abstract: To improve the properties of polyester fabric, the oktakis (tetra-methyl-ammonium)-T8-silisesquioxane (TMA-POSS) is applied to modify polyester fabric. TMA-POSS is synthesized by using tetraethyl orthosilicate and tetramethylammonium hydroxide and the structure of TMA-POSS is characterized by FT-IR spectra and the particle size distribution of TMA-POSS is measured by a size analyzer. Antistatic property, wetting property and dyeing performances of the modified polyester fabric are investigated. The results indicate that when the TMA-POSS concentration is larger than 4% (o.w.f.), the wetting angle reached up to 0; the peak voltage, attenuation cycle and capillary value are 1283.0 V, 16.0cm and 3.9s respectively.

Abstract: Fe²⁺ doped silica sol was prepared using tetraethoxysilane (TEOS) as precursor, ethanol as solvent, hydrochloric acid as catalyst and aqueous solution of ferrous iron by sol-gel method under the follow condition: [TEO:n [EtO:n [H₂=1:6:11, reacted at 70°C for 120 min with stirring. Through characterization of the prepared silica sol using particle size analyzer, X-ray diffraction (XRD) and UV-visible spectrum, it could be concluded that even and stable silica sol with nanosize and color was prepared. The prepared Fe²⁺ doped silica sol was applied in silk modification to endow silk with multifunctional properties and color. X-ray Photoelectron Spectroscopy (XPS) and atomic force microscopy (AFM) indicated that Fe²⁺-doped silica sol was treated onto the surface of silk fabric. The results showed that the Fe²⁺ doped silica sol treated silk had good flame retardance, water repellence and antistatic property. At the same time, silk fabric treated by the Fe²⁺-doped silica sol was also endowed with color.

Abstract: Carbon nanotube is a new type of nanoscale materials, which has excellent adsorption property and electrical conductivity. In this paper, silk fabrics were antistatic modified by adsorption of carbon nanotube. The results indicate that the optimum modified conditions are summed up as follows: quality ratio of carbon nanotube and silk fabric is 1:5, pH value is 4, reaction temperature is 95°C and reaction time is 1.5 h. The antistatic property of silk fabric which modified by carbon nanotube is obviously improved.

Abstract: A lab radio frequency (RF) magnetron sputter coating system was used to deposit the nanoscale copper (Cu) films onto the surface of polyester plain fabric at room temperature. In this study,the polyester fabrics were treated under different duration with low temperature plasma.The effect of oxygen plasma pretreatment on surface morphologies,antistatic properties,mechanical properties of the copper-coated polyester fabrics is investigated. The surface morphology of modified polyester fabrics was characterized by atomic force microscopy (AFM).The AFM observations revealled the obvious corrasion was formed on the fiber surface,the sputtered copper particles were hard to cluster and uniformly distributed on the fiber surface with longer duration of plasma treatment.The antistatic properties of the copper-coated polyester fabrics was greatly improved after the oxygen plasma treatment.The hydrophobic behavior of the coated samples was also significantly improved .

Abstract: In this paper,antistatic property of PAN/PANI composite fiber was studied through the grafted polymerization of Polyacrylonitrile and Polyaniline (PANI). The preconditioning and the dosage of ANI influenced on the rate of bodyweight gain, breaking strength and tensile rate,mass specific resistance of the composite fiber were discussed. The mass specific resistance of conventional polyacrylonitrile fiber is 1011Ω•cm,the mass specific resistance of PAN/PANI composite fiber could be reduced to 106-108Ω•cm. It could prove that the antistatic property of PAN fiber has been greatly improved by PANI.

Abstract: The high altitude cleaning work is usually carried out far away from the ground; the special environment and work content make the special demands on overall materials. This paper chooses 8 kinds of materials, measure their air permeability, moisture penetrability, waterproofness, abrasive performance and antistatic property. Based on the comprehensive consideration, select the Vinyl chloride-acrylonitrile copolymer with antistatic property and waterproofness as the primary material, use other materials at local areas according to the specific requirements as to optimize the function.

Abstract: Polyethylene terephthalate (PET) fiber is a kind of widely used textile fiber due to its some desirable properties. However, it limited its application in clothing because of poor hydrophilic property and high static electric. In order to improve hydrophilic and antistatic properties of PET fabrics, β-cyclodextrin (β-CD) was finished onto them with citric acid (CA) as crosslinking agent. SEM showed that β-CD was finished successfully onto PET fibers. Moisture liberation curve indicated that the finished PET fabrics possessed favorable hydrophilic property. However, water vapor transport property of the finished PET fabrics slightly decreased. Antistatic property of PET fabrics finished by β-CD acquired improvement. In addition, tensile properties of PET fabric also were enhanced after finishing.

Abstract: The properties of UHMW-PE film produced by hot compression molding and films modified by acid and anti-static agent were characterized. The results showed that: a) the thickness distributing of the film which processing by calendar rolling with conventional design roller is inhomogeneity; the tensile strength was 37.22 MPa, the elongation at break was 368.00%; the transmittance increases with wavelength redshift shows short-wave absorption and long-wave transmission; initial temperature of dissociation is 320°C; the surface resistance 10¹⁰ Ω and maximum is higher than 10¹⁶ Ω. b) Acid modification the surface of UHMW-PE film moderates the surface antistatic performance. C) After modified the film with external anti-static agent, the surface resistance was around 10⁷Ω, but anti-static properties loss rapidly after friction. If modified the film with internal anti-static agent, the surface resistance was around 10¹⁰ Ω and have a long-lasting anti-static effect.

Abstract: Dodecyl-borate ester (LB) was prepared by using laurel alcohol and boric acid as starting materials. The novel borate ester surfactant containing nitrogen (LNB) can be formed by reacting with diethanol amine and dodecyl-borate ester. The chemical structure of the product was identified by 1H NMR spectroscopy and IR spectrum. The stability of the foam formed was also evaluated. As expected, these surfactants exhibit good surface properties and show low foaming power. This paper mainly studies its antistatic behavior at different temperatures and in the different treatment. At the same time, we study foaming power at the optimal antistatic condition and scanning electron microscopy research it in textile fibers.

Abstract: A new type of surfactant was prepared. The structure of the novel borate ester formed by reacting boric acid and lauryl alcohol and with diethanol amine was established by 11B, 1H NMR spectroscopy and IR spectrum. Testing it antistatic property, we found 0.3wt% dodecanol diethanol amine borate ester surfactant (the final product LNB) can make specific resistance of the polyester staple fiber be decreased from 1012 to 108 at the condition of 60% RH and 18°C. Because Amine compounds with nonbonding electrons can form the extra molecular coordination bond of nitrogen to boron and prevent hydrolysis of borate esters, it exhibits higher hydrolytic stability. And the novel borate ester surfactant shows a higher antibacterial activity. This paper mainly studies its application in modern spin finishes for polyester staple fiber.