The wear resistance and tear strength of silicone rubber can be greatly improved by warp knitted polyester fabric, but the application of fabric rubber composites is limited by the poor bonding ...interface between the fabric and the rubber. In this study, the fabric is immersed in an alkaline solution first and a coupling agent in sequence with ultrasonic treatment. Then, fabric rubber composites with high bonding strength between fabric and rubber are prepared through a co-vulcanization process. The adhesion mechanism between the fabric and the rubber is analyzed through Fourier transform infrared spectra (FT-IR), Raman spectrum, contact angle test and peel test. The adhesion strengths of samples treated by KH570 along warp and weft direction of fabric reach 8.0 N·mm-1 and 4.82 N·mm-1, respectively, which are 10.35 times and 5.91 times higher than those of original fabric samples. This greatly improves the delamination resistance of fabric rubber composites under large strain and expands its application range.
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Mussel‐inspiration is extensively utilized for multifunctional modification on the surface of universal materials. Polyphenols are more and more exploited for mussel‐inspired chemistry to replace ...polydopamine owing to their ubiquitousness and inexpensiveness. Herein, to explore the interfacial properties between fully drawn yarn (FDY) polyester fiber‐bundle and epoxy matrix, codeposition of polyethyleneimine/catechol (PEI/CCh) is used to modify FDY polyester fiber‐bundles by mussel‐inspired method. The orthogonal experiments are performed to obtain the optimum formula which is 2 g L−1 PEI, 1 g L−1 CCh, and 24 h codeposition time. The results of surface structure characterization measured via Fourier transform infrared spectroscopy, X‐ray photoelectron spectroscopy, scanning electron microscope, and energy dispersive X‐ray indicate that PEI/CCh aggregates are uniformly coated on fiber surface to fabricate continuously lamellar structures. The surface hydrophilicity and water infiltration rate constant are acquired by water contact angle. These results elucidated that FDY fiber surface is successfully endowed with polyethyleneimine/catechol aggregates and surface hydrophilicity greatly improved. Single fiber‐bundle pull‐out tests are conducted to evaluate the interfacial strength. Compared to pure fiber‐bundle specimens, there are 67.57%, 57.63%, and 45.07% increase of initial debonding load, peak load, and interfacial shear strength, respectively.
Polyethyleneimine/catechol (PEI/CCh) codeposition aggregates are coated onto fully drawn yarn (FDY) polyester fiber‐bundle surface. The surface structure characterization reveals that the PEI/CCh aggregates are equably formed on fiber surface. Water contact angle analysis indicates that the surface wettability is enhanced, which accelerates interfacial strength. The coated FDY is incorporated with epoxy resin to improve the interfacial adhesion.
Bending of Woven Fabrics Matsuo, Tatsuki
Journal of the Textile Machinery Society of Japan,
1969, 1969-00-00, Letnik:
15, Številka:
1
Journal Article
Odprti dostop
This article expands the theories announced by Livesey-Owen and Grosberg on the bending deformation of woven fabrics. A theoretical equation (11) has been derived. Various factors which determine the ...bending deformation properties can be arranged as shown in Fig. 4. The bending movement vs curvature curves of various woven fabrics have been measured. The effects of single filament denier, yarn density and various finishing treatments have also been examined. The bending behaviors of woven fabrics of cotton, viscose and other synthetic fibers have been compared. Data obtained from the experiments have been analyzed on the basis of the equation (1).
The first commercial plastics application of polytrimethylene terephthalate (PTT) polyester has been launched by RTP Co. of Winona, Minn., in conjunction with Epcos AG, a German manufacturer of ...electronic components. Epcos needed a halogen-free FR compound for coil bobbins (photo). Epcos settled on one of RTP's 4700 series of PTT compounds, which contain 10% to 33% glass and non-halogen flame retardants. RTP says PTT has higher strength and stiffness than PBT, plus lower cost.
Celotno besedilo
Dostopno za:
CEKLJ, DOBA, IZUM, KILJ, NUK, PILJ, PNG, SAZU, UILJ, UKNU, UL, UM, UPUK
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