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    • 7. 发明授权
    • 저비중, 고탄성 및 저휨 특성의 열가소성 장섬유 폴리프로필렌 수지 조성물
    • 长玻璃纤维增​​强聚丙烯树脂组合物具有低密度,高弹性和低温度
    • KR101317596B1
    • 2013-10-11
    • KR1020120070090
    • 2012-06-28
    • 롯데케미칼 주식회사
    • 장은화유영규마성원조성민여천천황태룡
    • C08L23/12C08K7/14C08K5/54C08J5/08
    • PURPOSE: A polypropylene resin composition is provided to show an excellent elasticity, post-deformation prevention property and low warpage while maintaining a low density by using a flat glass fiber having a high aspect ratio as an inorganic filler. CONSTITUTION: A polypropylene resin composition comprises (a) 50-80 parts by weight of polypropylene resin; (b) 15-30 parts by weight of long glass fibers; and (c) 5-30 parts by weight of an inorganic filler. The inorganic filler is a flat glass fiber having a non-annular cross section, and has a 2-4:1 range of an aspect ratio of a minor axis length to a major axis of the fiber. The flat glass fiber has 20-30 micron of the major axis length of the fiber, and 5-10 micron of the minor axis length. (a) polypropylene resin is a highly crystalline polypropylene resin having a melting index (MI) of 30-150 g/10 min (ASTM D-1238, 230deg.C).
    • 目的:通过使用具有高纵横比的平板玻璃纤维作为无机填料,提供了一种聚丙烯树脂组合物,以显示出优异的弹性,变形后防止性和低翘曲性,同时保持低密度。 构成:聚丙烯树脂组合物包含(a)50-80重量份的聚丙烯树脂; (b)15-30重量份的长玻璃纤维; 和(c)5-30重量份的无机填料。 无机填料是具有非环形横截面的扁平玻璃纤维,并且具有短轴长度与纤维长轴的纵横比的2-4:1范围。 扁平玻璃纤维具有20-30微米的长轴长度的纤维,5-10微米的短轴长度。 (a)聚丙烯树脂是熔融指数(MI)为30-150g / 10min(ASTM D-1238,230℃)的高结晶性聚丙烯树脂。