A surface covering for use as a moss covering or patch of grass via application to a surface or substrate. The surface covering provides a decorative and durable and easily maintained surface covering. The covering is fabricated using groups of fibers, such as metallic, plastic, or other material fibers, e.g., stainless steel fibers or strands available commercially as steel wool or the like. The fibers or strands provide a core of a body of each blade or piece of the surface covering, which is useful to replicate a blade of grass or moss or to mimic a strand of hair. Each body of the strands further includes an outer layer or coating, which can be formed by painting, e.g., with an epoxy or other useful material that may be colored, the mesh of metal fibers to provide a durable body with a desired look and feel.

A fibre structure formed from dissolvable glass fibres is provided, the dissolvable glass fibres being formed from one or more boron compounds and one or more alkali compounds. The dissolvable glass can be formed into filaments, rovings and staple fibres of varying composition, length and diameter dependent on functionality and purpose. A mixture of chemicals components are heated, melted and then drawn or extruded into dissolvable filaments, rovings and staple fibres for use in a fibre-reinforced composite part or as a preservative in the internal and surface treatment of solid wood and engineered composite panels. A water-soluble surface coating may be applied to adjust dissolution rate and facilitate binding into an air-laid nonwoven mat or incorporation into other matrices.

Provided is a glass fabric formed by weaving warp and weft glass yarns comprising a plurality of glass filaments, wherein the surface of the glass fabric is subjected to surface treatment with a surface treatment agent, and the difference between the dielectric loss tangent and the bulk dielectric loss tangent of the glass fabric as measured by using a split cylinder resonator is greater than 0 and not more than 1.010.sup.3 at 10 GHz.

The present disclosure discloses a preparation device for magnesium oxide fiber and preparation method thereof. The preparation device for the magnesium oxide fiber includes a fiber releasing device, an electrochemical reaction device, a heating device, and a fiber receiving device. The fiber releasing device is used for releasing magnesium metal fiber. The electrochemical reaction device is used for oxidizing the magnesium metal fiber released by the fiber releasing device into magnesium hydroxide fiber, comprising a solution storage part, a negative electrode, and a positive electrode. Neutral electrolyte is stored in the solution storage part to soak the magnesium metal fiber released by the fiber releasing device. The heating device is used for heating the magnesium hydroxide fiber prepared by the electrochemical reaction device, to obtain magnesium oxide fiber. The fiber receiving device is used for receiving the magnesium oxide fiber obtained after being heated.