Cured in place pipe system having integrated thermoplastic with improved melt-flow characteristics
Abstract:
A Cured In Place Pipe System includes a tubular substrate constructed of needle-punched fibers of carbon, aramid and thermoplastic. The tubular structure defines a longitudinal channel running along the length. Within the channel is an air bladder, preferably including an air duct. The tubular substrate is enclosed within a loose-fitting protective film. The tube is preferably constructed with multiple overlapping layers that aren't permanently bound, thereby allowing for circumferential expansion to accommodate various host pipe sizes, shapes, and configurations. The integrated thermoplastic has a melt/flow point of approximately 300-342° F., a cure point of approximately 330-370° F., and bonding point of approximately 372-412° F. at approximately 5-20 psi.
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