Radiation cured composite materials are greatly improved by enhancing the fiber to matrix bond by prewetting the fibers with an interface resin that has a curing agent mixed in with the interface resin. Furthermore, radiation curing the composite material at or near an expected operating temperature of the composite material improves the mechanical properties of the material by reducing thermally induced strains and stresses caused by thermally curing a material and subsequently cooling the material. Adding an interface resin with a curing agent to the fibers allows relatively thick parts, a must faster curing process, a wide variety of inexpensive and easily workable molding materials, the ability to maintain tight tolerances and reduce or eliminate springback, and a radiation cured material that approaches or exceeds the material characteristics of thermally cured composite materials.

A ready to use surface veil and surface film integrated prepreg layer suitable to use in a production of lightweight structural parts/panels with class A surfaces includes a curable bottom base resin formulation including a curable bottom base resin, at least one first toughening agent, at least one accelerator, at least one curing agent and at least one hardener. The prepreg layer further includes a release paper coated with the curable bottom base resin formulation to obtained curable bottom base resin formulation coated release paper as a first resin film; a reinforcement fabric; an outer resin formulation including an outer resin, wherein the outer resin is the curable bottom base resin being 10% more viscous than a resin, at least one thermoplastic toughening agent, at least one accelerator, at least one curing agent and at least one hardener agent.

A ready to use surface veil and surface film integrated prepreg layer suitable to use in a production of lightweight structural parts/panels with class A surfaces includes a curable bottom base resin formulation including a curable bottom base resin, at least one first toughening agent, at least one accelerator, at least one curing agent and at least one hardener. The prepreg layer further includes a release paper coated with the curable bottom base resin formulation to obtained curable bottom base resin formulation coated release paper as a first resin film; a reinforcement fabric; an outer resin formulation including an outer resin, wherein the outer resin is the curable bottom base resin being 10% more viscous than a resin, at least one thermoplastic toughening agent, at least one accelerator, at least one curing agent and at least one hardener agent.

A composite resin molded product of the invention is a composite resin molded product, including: a main agent resin; and a plurality of natural fibers dispersed in the main agent resin. The plurality of natural fibers each contain a microorganism or an enzyme. When the composite resin molded product is 100% by mass, a content rate of the plurality of natural fibers each containing the microorganism or the enzyme in the composite resin molded product is 10% by mass or more and 99% by mass or less. At least one of the plurality of natural fibers is exposed on a surface of the composite resin molded product. At least a part of a surface of the at least one of the plurality of natural fibers is coated with a hydrolyzable coating resin.

A conductive polyester laminated structure and a conductive packaging material are provided. The conductive polyester laminated structure includes a main structure supporting layer and two conductive layers. Each of the conductive layers is formed of a conductive polyester composition. The conductive polyester composition includes a polyester base material and a conductive reinforcing material. The conductive reinforcing material includes multiple carbon nanotubes, and the carbon nanotubes are dispersed in the polyester base material. In each carbon nanotube, a length of the carbon nanotube is defined as L, a diameter of the carbon nanotube is defined as D and is between 1 nanometer and 30 nanometers, and an L/D value of the carbon nanotube is between 300 and 2,000. The carbon nanotubes are in contact with each other to form multiple contact points, so that the conductive polyester composition has a surface impedance of not greater than 10.sup.7 Ω/sq.

This invention provides a modified polyolefin resin composition that contains a large amount of an unsaturated carboxylic acid or an anhydride thereof, and that can inhibit an increase in fluidity after graft modification due to little influence of a reaction residue, wherein the resin composition when used as a compatibilizer for reinforced fiber plastics provides a molded article with excellent mechanical properties such as bending strength and impact resistance.

A process for producing a carbon sheet molding compound (SMC). An SMC manufacturing line including at least one conveyor line for laying up SMC resins on a carrier film is provided. A chopped carbon fiber which is evenly distributed using dehumidified supply air and using a pressurized air venturi apparatus which is used to debundle and randomize the carbon fibers, onto the resin on the carrier film as the carrier film moves along the conveyor.

Disclosed are a composite resin composition containing a thermosetting resin including an unsaturated polyester resin and a saturated polyester resin, a filler, and a processability-improving agent. More particularly, disclosed are a composite resin composition that is capable of providing a molded article having a lower specific gravity and improved surface quality compared to a conventional molded article by improving the compatibility and impregnability of a thermosetting resin and a filler using a processability-improving agent, and a molded article manufactured using the same.

The claimed material relates to a mixed silica and silicate fiber and polymer composite having enhanced modulus, viscoelastic and rheological properties.

Disclosed herein is a fiber composite material including: (a) a polyurethane obtained reaction of at least the components: (i) a polyisocyanate composition; and (ii) a polyol composition including at least 15% by weight of an at least trifunctional alcohol (ii.1), which exhibits at least two primary hydroxyl groups (ii.1); and (b) fibers which are at least partially embedded in the compact polyurethane.

Further disclosed herein are a process for producing a fiber composite material, a fiber composite material obtained by this process, and a method of using the fiber composite material for producing a pipe, in particular a conical pipe, a pipe connector, a pressure vessel, a storage tank, an insulator, a mast, a bar, a roller, a torsion shaft, a profile, a piece of sports equipment, a molded part, a cover, an automotive exterior part, a rope, a cable, an isogrid structure or a semi-finished textile product.