Polyester insulation
    3.
    发明授权
    Polyester insulation 失效
    涤纶绝缘

    公开(公告)号:US5582905A

    公开(公告)日:1996-12-10

    申请号:US492473

    申请日:1995-06-22

    摘要: A non-woven mat of fibrous thermoplastic insulation is produced by melt blowing recycled polyethylene teraphthalate (PET). The PET is melted, pressurized and extruded from an extrusion head into substantially continuous fibers that are subjected to turbulent high velocity air that attenuates the fibers. The fibers are then collected on a collection device building up a non-woven mat. The collection device is spaced from the extrusion device forming a flight path for the fibers that is sufficiently long that the fibers split apart under the force of the high velocity air, fibrillating into a plurality of very fine fibrils of under 15 microns in diameter. These fibrils are analogous to goose down and greatly enhance the loft and R value of the mat.

    摘要翻译: 通过熔融吹制再生聚乙烯邻苯二甲酸乙二醇酯(PET)制造纤维热塑性绝缘无纺毡。 将PET从挤出头熔化,加压并挤出成基本上连续的纤维,其经受湍流的高速空气,其使纤维衰减。 然后将纤维收集在建立无纺垫的收集装置上。 收集装置与挤出装置间隔开,其形成用于纤维的飞行路径,该飞行路径足够长,使得纤维在高速空气的力下分裂,原纤化成直径小于15微米的多个非常细的原纤维。 这些纤维类似于鹅绒,大大增强了垫子的顶点和R值。