PP 'Strand Foam' Sheet Absorbs More Impact.Strandfoam, a proprietary directional foam commercialized by Dow Automotive in Auburn Hills, Mich., is a new type of energy-absorbing foam for auto headliners, interior door panels, pillar trim, ankle bolsters, and steering-column covers. It's made by extruding foamed strands of high-melt-strength polypropylene polypropylene (pŏl'ēprō`pəlēn), plastic noted for its light weight, being less dense than water; it is a polymer of propylene. It resists moisture, oils, and solvents. , merging them into a block, then slicing the block cross-wise into sheet. The sheet is then thermoformed using vacuum, pressure, or matched-metal tools. The result is a honeycomb honeycomb a mosaic of closely packed units with depressed centers giving a honeycomb appearance. honeycomb ringworm see favus. honeycomb stomach reticulum. foam that reportedly absorbs more impact than conventional bead bead Small object, usually pierced for stringing. It may be made of virtually any material—wood, shell, bone, seed, nut, metal, stone, glass, or plastic—and is worn or affixed to another object for decorative or, in some cultures, magical purposes. or urethane urethane (yoor´ithān´), n ethyl carbamate used as an anesthetic agent for laboratory animals, formerly used as a hypnotic in humans. foams because it compresses, buckles, and fractures along the strands. That means Strandfoam can be used at half the thickness of conventional foams to provide the same cushioning effect. The first commercial use of Strandfoam is in 0.5-in.-thick sheet, glued to the back of headliners on 2000 and 2001 model Dodge and Plymouth Neons. Dow makes Strandfoam sheet from 2 to 4 pcf at its Hanging Rock plant near Granville, Ohio Granville is a village in Licking County, Ohio, United States, founded by settlers from Granville, Massachusetts, a town of which it now has three times the population. The population was 3,167 at the 2000 census. Granville is home to Denison University. . Trials are now under way for car pillar trim. |
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