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 total carbon extraction amount when the glass fabric is subjected to extraction with methanol is greater than 0 and not more than 0.25%.

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 1.0?10.sup.?3 at 10 GHz.

The present invention addresses the problem of providing a transparent, noncombustible sheet having excellent transparency but minimized blurring and color bleeding. The means for addressing the problem is a transparent noncombustible sheet including a glass fiber fabric and a cured resin composition layer impregnated into the glass fiber fabric; wherein, the cured resin composition layer is formed by curing a resin composition including a curable resin and a bifunctional (meth)acrylate, total light transmittance of the transparent noncombustible sheet being no less than 80%, and haze of the transparent noncombustible sheet being no more than 30%.

Methods of making fiber reinforced composite articles are described. The methods may include the step of providing a pre-impregnated fiber-containing thermoplastic material to a mold for the article. The pre-impregnated fiber-containing thermoplastic material may include: (i) a plurality of fibers, and (ii) a first thermoplastic polymer made from a first reactive thermoplastic resin. Reactants of a second reactive thermoplastic resin may be introduced to fill open spaces in the mold that are left by the pre-impregnated fiber-containing thermoplastic material. The second reactive thermoplastic resin may then be polymerized to form a second thermoplastic polymer. The final fiber reinforced composite article includes at least two spatially distinct regions of thermoplastic polymer.

Methods of making fiber reinforced composite articles are described. The methods may include the step of providing a pre-impregnated fiber-containing thermoplastic material to a mold for the article. The pre-impregnated fiber-containing thermoplastic material may include: (i) a plurality of fibers, and (ii) a first thermoplastic polymer made from a first reactive thermoplastic resin. Reactants of a second reactive thermoplastic resin may be introduced to fill open spaces in the mold that are left by the pre-impregnated fiber-containing thermoplastic material. The second reactive thermoplastic resin may then be polymerized to form a second thermoplastic polymer. The final fiber reinforced composite article includes at least two spatially distinct regions of thermoplastic polymer.

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.

A glass cloth comprising a glass yarn woven together, the glass yarn comprising multiple glass filaments, wherein an amount of B.sub.2O.sub.3 in a composition of the glass filaments is 15% by mass to 30% by mass, an amount of SiO.sub.2 in the composition thereof is 45% by mass to 60% by mass, and an amount of P.sub.2O.sub.5 in the composition thereof is 2% by mass to 8% by mass, and loss on ignition (LOI) of the glass cloth is 0.90% by mass to 2.0% by mass.

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 total carbon extraction amount when the glass fabric is subjected to extraction with methanol is greater than 0 and not more than 0.25%.

A ventilation insert for textiles, with at least one layer, covered at least partially by an absorption material and having ventilation openings, the openings being at least partially closeable via a liquid by swelling of the absorption material, obtainable by: a) treating a layer having ventilation openings with a mixture, containing a wetting agent, initiator, polymerizable monomer or oligomers, and a cross-linking agent, as a preliminary stage for the absorption material; and b) polymerizing the monomer or oligomer to form the absorption material while forming a bonded connection between the absorption material and the layer. The ventilation insert has a relatively low thickness, a low weight per unit area, and high flexibility permanently and independently of moisture after economical production, via one layer, self-sealingly closing ventilation openings, and containing the absorption material. The absorption material is connected to the layer by bonding, at least in some regions.

Fibers sized with a coating of amorphous polyetherketoneketone are useful in the preparation of reinforced polymers having improved properties, wherein the amorphous polyetherketoneketone can improve the compatibility of the fibers with the polymeric matrix.