| 摘要 |
<p>Polymer fiber obtainable by melt-spinning of a polymer and subsequent treatment of the fiber with ionizing radiation, wherein the polymer is a polypropylene homopolymer, a polypropylene copolymer or a mixture thereof, the polymer fiber has a lenght in the range of 0.1 to 40 mm, a diameter in the range of 5 to 170 pm and an MFI of more than 500g/10 min. Use of the treated polymer fiber to improve fire resistance of concrete, mortar, plaster, cement or refractory material.</p> |
