Patent classifications
C08J5/04
Fiber reinforced aerogel insulation
A fiberglass reinforced aerogel composite may include coarse glass fibers, glass microfibers, aerogel particles, and a binder. The coarse glass fibers may have an average fiber diameter between about 8 μm and about 20 μm. The glass microfibers may have an average fiber diameter between about 0.5 μm and about 3 μm. The glass microfibers may be homogenously dispersed within the coarse glass fibers. The aerogel particles may be homogenously dispersed within the coarse glass fibers and the glass microfibers. The fiberglass reinforced aerogel composite may include between about 50 wt. % and about 75 wt. % of the aerogel particles. The binder bonds the coarse glass fibers, the glass microfibers, and the aerogel particles together.
Laminate
A laminate, containing two or more polyolefin resin layers, wherein at least one polyolefin resin layer (A) contains a cellulose fiber including a cellulose fiber having a fiber length of 0.3 mm or more dispersed in the layer; a content of the cellulose fiber in the polyolefin resin layer (A) is 1% by mass or more and less than 60% by mass; and wherein a polyolefin resin layer (B) different from the polyolefin resin layer (A) is laminated in contact with the polyolefin resin layer (A).
Self-healing interlaminar delamination in fiber-reinforced composites via thermal remending
Disclosed herein is an intrinsically self-healing composite based upon in situ thermal remendability of an embedded polymeric interphase. The fiber-reinforced composite (FRC) material may incorporate a thermoset polymer with a defined glass transition temperature (T.sub.g) and/or a thermoplastic material of amorphous or semi-crystalline nature. The polymeric interphase can be incorporated as a plurality of particles, fibers, meshes, films, or 3D-printed structures. The self-healing composite includes a resistive heating component as a structural element that minimizes electrical energy demand and impact on mechanical integrity. Healing occurs in situ via resistive heating and can be enabled below, at, or above the glass-transition temperature of the FRC matrix, demonstrating viability for in-service repair under sustained loads. In addition to providing rapid healing functionality, the polymeric interphase increases inherent resistance to interlaminar fracture. Repeated heal cycles have been achieved in a double cantilever beam (DCB) fracture test without significant degradation in performance.
COMPOSITE ARTICLES PROVIDING FLAME RETARDANCY AND NOISE REDUCTION
A thermoplastic composite article comprising a porous core layer and an open cell skin disposed on a first surface of the core layer is described. The composite article comprises a noise reduction coefficient of at least 0.5 as tested by ASTM C423-17 and a flame spread index of less than 25 and a smoke development index of less than 150 as tested by ASTM E84 dated 2009.
Automotive Panel
Method for producing an automotive panel with the steps of (a) providing a first extrudate of polycarbonate and additives (mixture A), and providing endless filament glass rovings (Component C), (b) feeding mixture A, and component C into the main extruder, and forming a final extrudate, (d) compression moulding the final extrudate into an automotive panel whereby a second mixture of polycarbonate and a short length glass fibers (mixture B) is fed together with mixture A and component C.
AQUEOUS RESIN COMPOSITION AND USE AS BINDER IN FIBRE-BASED PRODUCTS
The invention relates to an aqueous resin composition and a method for the manufacture of an aqueous resin composition which resin is a reaction product of an oxidised polysaccharide and a crosslinking agent, which oxidised polysaccharide is an oxidised cellulose comprising aldehyde groups, which crosslinking agent comprises two or more groups reactive with the aldehyde groups, wherein the aldehyde groups in the resin in the aqueous resin composition are in hydrated or un-hydrated form and are at least partly converted to inter- or intramolecular hemiacetals, wherein the resin is dispersed and/or dissolved but not gelled. The invention also relates to the use of this composition for a binder in inorganic fibres products
TOUGHENED THERMOSET RESIN COMPOSITIONS
The present disclosure provides a curable resin composition including a thermoset resin, a toughener component containing a multistage polymer and a thermoplastic toughener and a hardener. The curable resin composition may be combined with reinforcing fibers and then cured to form a fiber-reinforced composite article having a high glass transition temperature and excellent mechanical properties. The fiber-reinforced composite article may be used in various applications, such as in transport applications including aerospace, aeronautical, nautical and land vehicles.
LAMINATE AND WELDED ARTICLE USING THE LAMINATE
A laminate has stacked fiber-reinforced thermoplastic resin base materials that can be easily welded without affecting physical properties, and a welded article thereof. The laminate is obtained by stacking five or more layers of fiber-reinforced thermoplastic resin base materials, wherein the fiber-reinforced thermoplastic resin base materials are obtained by impregnating continuous reinforcing fibers having conductivity, which are aligned in parallel, with a thermos-plastic resin.
LAMINATE AND WELDED ARTICLE USING THE LAMINATE
A laminate has stacked fiber-reinforced thermoplastic resin base materials that can be easily welded without affecting physical properties, and a welded article thereof. The laminate is obtained by stacking five or more layers of fiber-reinforced thermoplastic resin base materials, wherein the fiber-reinforced thermoplastic resin base materials are obtained by impregnating continuous reinforcing fibers having conductivity, which are aligned in parallel, with a thermos-plastic resin.
Radiation cured composite materials
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.