Abstract: A composite structural product is provided which comprises light weight cores made from processed kenaf, balsa or other cellulosic stalks bonded together. These may be conveniently manufactured into core blocks, and later sized and joined as the core member of a composite structure, e.g. laminates, fiberglass walls, or plastic encased products. The other members of the composite could include many different materials, from metals to woods to synthetic polymers such as thermoplastic and thermosetting resins. In one form, the kenaf or balsa stalks are formed into small strips or grindings for use as a light core weight filler in molding processes. If combined with yet other strong materials like bamboo in the core, a light-weight, stronger, and cheaper core can be achieved for, e.g., “plastic wood” applications. Thus, an improved core and composite, and process for making them, is provided that has the ability to overcome the disadvantages of the presently available structural materials.

Abstract: A linear bamboo tape containing a series of adhesively connected bamboo sections wherein each section has a predetermined width and thickness. The tapes are made by splitting cut and dried bamboo culms to obtain bamboo sections, sizing the bamboo sections to the desired width and thickness, adhesively connecting the treated sections, and applying a binder having excellent holding properties. The bamboo tape is used to make cylindrical containers or load-bearing structures by treating the tape with a resin and applying the treated tape to a surface of a cylinder to form a strong, lightweight, inexpensive cylinder. A cosmetic surface can be applied to the formed cylinder. The binder/bamboo tape can also be applied to the outer surface of cylindrical forms and treated with polymers to form pipes and tubes.

Abstract: Shaped load-carrying structures are fabricated using bamboo linear fibers with a compatible bonding material and synthetic polymers such as polyesters, epoxies, and polyolefins. The structures are manufactured by coating at least one of bamboo culms, split bamboo culms, bamboo fiber tape, or prepared bamboo fibers with a bonding material to produce a core. The core is then combined with a polymer matrix and extruded or molded to form a structure having the desired shape. The structures compare favorably with wood, steel, and concrete regarding strength, longevity, price and ability to withstand earthquakes. The structures may be used as beams, columns, telephone poles, and marine piles.