According to the present invention there is provided a photovoltaic element, comprising a photovoltaic laminate; a structural substrate; wherein the photovoltaic element further comprises a plurality of hairs which are arranged to improve adhesion between said photovoltaic laminate and said structural substrate. There is also provided an intermediate product which is used in the manufacture of such a photovoltaic element and a method of manufacturing such a photovoltaic element.

The purpose of the present invention is to obtain a fiber-reinforced composite material molded article having high adhesive strength in a boundary portion between an insert portion comprising a fiber-reinforced resin substrate and an integrally molded portion molded integrally with the insert portion. A fiber-reinforced composite material molded article (1) containing reinforcing fibers and a thermoplastic resin and being provided with a first layer (23), a second layer (22), and a third layer (21) in this order, the thickness of each layer, the ratio of the total volume of reinforcing fibers (x2) having a fiber length of 3 mm to less than 100 mm with respect to the total volume of reinforcing fibers present in the layer, the ratio of the total volume of reinforcing fibers (y2) having a fiber length of 0.02 mm to less than 3 mm with respect to the total volume of reinforcing fibers present in the layer, and the volume content of fibers in each layer being controlled so as to be in specific ranges.

A system and method for forming 3D printed structures includes printing an outer shell portion and filling an interior of the outer shell portion to form an inner portion. The outer shell portion and inner portion may have differing material properties. The outer shell portion may be anchored to the base component.

Articles are provided, having a multilayer structure including (a) a first layer formed from polyolefin and including undercut features formed on and extending from an integral backing; (b) a second layer including an adhesive having a Shore D hardness of greater than 59 when cured; and (c) a third layer including a substrate. The second layer is interlocked with the undercut features, the third layer is adhered to the adhesive, and the second layer is disposed between the first layer and the third layer. A method is also provided including (a) depositing a polyolefin resin into a mold cavity to form a first layer including undercut features; (b) demolding the first layer from the mold cavity at a rate of at least 150 millimeters per minute; (c) applying a curable adhesive to the undercut features to form a second layer attached to the first layer; and (d) attaching a third layer including a substrate to the second layer.

A system and method for forming 3D printed structures includes printing an outer shell portion and filling an interior of the outer shell portion to form an inner portion. The outer shell portion and inner portion may have differing material properties. The outer shell portion may be anchored to the base component.

Disclosed herein are methods and systems for the preparation of a co-injection molded multilayer plastic article. Some methods include co-extruding a combined polymeric stream having an interior core stream encased by an inner stream and an outer stream. A volumetric ratio of the inner stream to outer stream is adjusted during injection of the combined stream into the a mold cavity to alter a streamline along which the interior core stream flows thereby forming cohesion member that structurally interlocks the interior layer with the inner layer, with the outer layer or with both. Some embodiments reduce or eliminate a need for addition of an adhesive in the composite stream to prevent delamination of layers of the resulting multilayer plastic article. In some embodiments, cohesion members may be employed to produce a desired cosmetic effect in a resulting article.

Disclosed are thermoset/thermoplastic composites that include a thermoset component directly or indirectly bonded to a thermoplastic component via a crosslinked binding layer between the two. The crosslinked binding layer is bonded to the thermoplastic component via epoxy linkages and is either directly or indirectly bonded to the thermoset component via epoxy linkages. The composite can be a laminate and can provide a route for addition of a thermoplastic implant to a thermoset structure.

The present disclosure relates to a plank with anti-slip function and a method preparing the same; it belongs to the technical field of plank manufacturing. The plank with anti-slip function includes a support body and an anti-slip body clamped on the support body; the anti-slip body has a clamping member; the support body is provided with a plurality of clamping grooves that cooperate with the clamping member; the clamping groove is provided with at least one limiting part that restricts the clamping member from escaping from the clamping groove; the support body is made of thermoplastic material, and the anti-slip body is made of elastomer material. In the present disclosure, by replacing the material of the support body with thermoplastic polyolefin, the cost of the support body is significantly reduced, and the strength is improved; the present disclosure will also provide a matching structure between the support body and the anti-slip body to make the anti-slip body firmly clamped on the support body, so that the present disclosure simultaneously exerts the advantages of the thermoplastic support body and the elastic anti-slip body, thereby the plank has the advantages of high compressive strength and good surface contact.

The present disclosure relates to a plank with anti-slip function; it belongs to the technical field of plank manufacturing. A plank with anti-slip function includes a support body and an anti-slip body; the anti-slip body has a clamping member; the support body is provided with a plurality of clamping grooves; the clamping groove is provided with at least one limiting part that restricts the clamping member from escaping from the clamping groove. In the present disclosure, by replacing the material of the support body with thermoplastic polyolefin, the cost of the support body is significantly reduced, and the strength is improved; the present disclosure will also provide a matching structure between the support body and the anti-slip body, so that the plank has the advantages of high compressive strength and good surface contact.

Disclosed are reinforced structures. The structures are comprised of reinforced elements that have continuous fibers embedded in a matrix material. The reinforced elements are combined in a matrix material to form a desired shape of reinforced structure.