A vehicle component including a first cured layer of a molding composition having chopped glass fibers as a majority by volume of the fiber filler. A second cured layer of molding composition is provided that has carbon fibers as a majority by volume of the fiber filler. An adhesive applied is as liquid or paste joining the first cured layer and the second cured layer. The adhesive has a Modulus of between 600 and 800 MPa with an elongation of about 70% as determined by ASTM D638 and a CLTE between 50 and 90 μm/m-° C. in a temperature range of −30° C. to 0° C. and 255 μm/m-° C. in a temperature range of 100° C. to 130° C. as determined by ISO MAT-2208, and a thickness such that no bond-line read-through (BLRT) is observable in an outer surface of said first cured layer with an unaided, normal human eye.
INHIBITION OF BOND-LINE READ-THROUGH IN JOINED DUAL LAYER THERMOSET ARTICLES
2021-05-20
Patent
Electronic Resource
English
IPC: | B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM , Schichtkörper, d.h. aus Ebenen oder gewölbten Schichten, z.B. mit zell- oder wabenförmiger Form, aufgebaute Erzeugnisse / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |
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