Carbon fiber filament winding resin system

3M has launched a line of matrix resins for filament winding of carbon fiber composites.

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3M (St. Paul, Minn., USA) has launched a line of matrix resins for filament winding of carbon fiber composites. 3M says the resins will allow users to redefine how long pressure vessels last, how light they are, and how they are designed. As the resin in a fiber-reinforced pressure vessel, the new product reportedly has demonstrated significant improvements compared to competing resins. In third-party testing performed by HyPerComp Engineering (HEI, Brigham City, Utah, USA), pressure vessels made with the new 3M resin were compared with pressure vessels made with traditional bisphenol-A epoxy. The 3M vessels provided more a more than 6 percent increase in fiber delivered strength, a 30 percent increase in burst pressure after impact and a 55 percent average increase in fatigue life. HEI also reports that no matter the parameter explored — ultimate burst performance, cycle performance or robustness — the resin resulted in significant increased performance over baseline materials. Other reported benefits include improved scuff resistance and up to a 36 percent reduced exotherm, enabling the possibility of curing thicker parts. Potential applications include rollers, drive shafts, rocket motor casings, launch tubes, deep water oil and gas umbilicals, boat masts and aircraft structural tubes and struts.

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