A fiber reinforced resin base material is formed by impregnating a continuous reinforcing fiber(s) or a reinforcing fiber material having a discontinuous fiber(s) dispersed therein with a resin composition which exhibits a single glass-transition temperature before and after being heated at 400° C. for one hour, wherein the resin composition is composed of (A) a thermoplastic resin having a glass-transition temperature of 100° C. or more and (B) a thermoplastic resin having a glass-transition temperature of less than 100° C.

The fiber reinforced resin base material has excellent impregnation properties and thermal stability, having fewer voids, and having surface quality and high heat resistance.

Novel ultra-thin unidirectional pre-preg tapes are disclosed. They can be used to produce ultra-thin woven, bias, multiaxial, chopped-oriented etc. types of pre-pregs. These ultra-thin pre-pregs enable production of composite material products with well-controlled dimensional tolerances and smooth/even surfaces. Further, they render the production of composite material products relatively simpler, tidier, quicker, and economical. The obtained composite material products are relatively thinner, lighter, and mechanically higher-performing.

The invention relates to a vaporizer unit (21) for a vaporizer device (2) of an inhaler, in particular of an electronic cigarette (1), the vaporizer unit (21) consisting of a material that comprises at least one thermoplastic, preferably a high-performance thermoplastic. The invention also relates to a method for producing such a vaporizer unit (21).

A fiber-reinforced resin prepreg and a molded article obtained by molding a molding material including the fiber-reinforced resin prepreg are described. The fiber-reinforced resin prepreg contains a carbon fiber bundle and a matrix resin composition. The ipa value of the carbon fiber bundle measured by an electrochemical measurement method is 0.14 μA/cm.sup.2 or more. The impact strength of a film obtained by solidifying the matrix resin composition under particular molding conditions is 12.0 kJ/m or more.

The present invention generally relates a composite material containing fibers and a resin matrix that comprises a PEEK-PEoEK copolymer having R.sub.PEEK and R.sub.PEoEK repeat units in a molar ratio R.sub.PEEK/R.sub.PEoEK ranging from 95/5 to 5/95 in contact with at least a part of the surface of such fibers. The present invention also relates to methods for making such composite materials, shaped articles made from such composite materials, and methods of making such articles.

A fire retardant material comprising a carbon fiber which tensile elasticity is 700 GPa or more, and a fire retardant resin such as polycarbonate.

A method of activating a surface of a plastics substrate formed from: (a) polyaryletherketone such as polyether ether ketone (PEEK) polyether ketone ketone (PEKK), polyether ketone (PEK); polyether ether ketone ketone (PEEKK); or polyether ketone ether ketone ketone (PEKEKK); (b) a polymer containing a phenyl group directly attached to a carbonyl group, for example polybutadiene terephthalate (PBT) optionally wherein the carbonyl group is part of an amide group, such as polyarylamide (PARA); (c) polyphenylene sulfide (PPS); or (d) polyetherimide (PEI); for subsequent bonding, the method comprising the step of exposing the surface to actinic radiation wherein the actinic radiation: includes radiation with wavelength in the range from about 10 nm to about 1000 nm; the energy of the actinic radiation to which the surface is exposed is in the range from about 0.5 J/cm.sup.2 to about 300 J/cm.sup.2. Hard to bond substrates are then more easily subsequently bonded for example using acrylic, epoxy or anaerobic adhesive.

A resin composition comprises a polyether ether ketone, an aromatic polysulfone, a polyetherimide, and a fibrous filler.

Provided is process for producing a surface-metalized polymer film, the process comprising: (a) preparing a graphene dispersion comprising multiple graphene sheets and an optional conducive filler dispersed in a first liquid medium, which is an adhesive monomer/oligomer or contains a liquid adhesive monomer/oligomer/polymer dissolved in a solvent; (b) feeding a continuous polymer film from a feeder roller into a deposition zone, wherein the graphene dispersion is dispensed to deposit the graphene sheets to a surface of the polymer film; (c) moving the graphene-coated polymer film into a metallization chamber which accommodates a plating solution therein for plating a layer of a desired metal onto the graphene-coated polymer film to obtain a surface-metalized polymer film; and (d) operating a winding roller to collect the surface-metalized polymer film.

Provided is a surface-metalized polymer film comprising: (a) a polymer film having a thickness from 10 nm to 5 mm and two primary surfaces; (b) a graphene layer having a thickness from 0.34 nm to 50 m and comprising multiple graphene sheets and an optional conducive filler coated on or bonded to at least one of the two primary surfaces with or without using an adhesive resin; and (c) a metal layer comprising a plated metal deposited on the graphene layer; wherein the graphene sheets contain single-layer or few-layer graphene sheets selected from a pristine graphene, graphene oxide, reduced graphene oxide, graphene fluoride, graphene chloride, graphene bromide, graphene iodide, hydrogenated graphene, nitrogenated graphene, doped graphene, chemically functionalized graphene, or a combination thereof. This film exhibits a high scratch resistance, strength, hardness, electrical conductivity, thermal conductivity, light reflectivity, gloss, etc.