The present invention addresses the problem of suitably improving a treatment agent for a carbon fiber precursor in terms of the heat resistance and the effect of suppressing fusion between fibers during the step of flame-resisting treatment. This treatment agent for a carbon fiber precursor is characterized by containing a lubricant, the lubricant comprising a specific sulfur-containing diester compound and a specific sulfur-containing monoester compound.

An electrically-actuated artificial muscle fiber with bidirectional linear strain and a preparation method thereof are provided. The artificial muscle fiber includes a fiber matrix, electrode layers and insulating layers. The artificial muscle fiber takes the fiber matrix as a skeleton, upper and lower layers of the fiber matrix are covered with one electrode layer respectively, and one insulating layer is covered on a surface of each of electrode layers. A helical fiber body is formed by winding. Finally, the artificial muscle fiber is formed through packaging, where metal wires are taken as leads and respectively connected to upper and lower layers of electrodes.

Disclosed is a carbon fiber precursor treatment agent that contains a specific (poly)oxyalkylene derivative and a smoothing agent. The smoothing agent contains at least one selected from the group consisting of an amino-modified silicone, a polyether-modified silicone, a dimethyl silicone, and an ester compound. Assuming that the sum of the content ratios of the (poly)oxyalkylene derivative and the smoothing agent in the carbon fiber precursor treatment agent is 100% by mass, the carbon fiber precursor treatment agent contains the (poly)oxyalkylene derivative at a ratio of 5% by mass or more and 80% by mass or less and the smoothing agent at a ratio of 20% by mass or more and 95% by mass or less.

Various aqueous anti-pilling fabric treatment compositions are described. The compositions include one or more aqueous polyurethane dispersions or one or more acrylic polymers or both and a silicone. The compositions can be used treat fabrics, textiles and articles of manufacture made therefrom to impart anti-pilling properties to the same.

Provided are MOF-fabric composites having a crystalline MOF adhered directly to fibers of the fabric and methods of making MOF-fabric composites. A solution is adsorbed onto a fabric. The solution can include a metal salt, a linker, and a solvent. The solution is adsorbed onto the fabric and the fabric suspended over a heated vapor. The vapor releases onto the fabric, causing the metal salt, the linker, and the solvent to diffuse out of the polymer fibers. The linker links metal from the metal salts to form crystals attached to the fabric, and the vapor aids crystallization.

The carbon fiber precursor fiber of the disclosure includes an acrylamide-based polymer fiber; and a self-crosslinked product of a self-crosslinking silicone oil on a surface of the acrylamide-based polymer fiber.