发明名称 |
CHOPPED CARBON FIBER BUNDLES AND METHOD FOR PRODUCING CHOPPED CARBON FIBER BUNDLES |
摘要 |
Provided are: chopped carbon fiber bundles which have high fluidity without decreasing the dispersibility of carbon fibers and the physical properties of a molded product; and a method for producing chopped carbon fiber bundles with high productivity. Chopped carbon fiber bundles, each of which contain a carbon fiber bundle having a total fineness of from 25,000 dtex to 45,000 dtex (inclusive) and a sizing agent in an amount of from 1% by mass to 5% by mass (inclusive) relative to the total mass of the chopped carbon fiber bundle. The length (L) of each chopped carbon fiber bundle along the fiber direction of the carbon fiber bundle is from 1 mm to 50 mm (inclusive); the ratio of the longest diameter (Dmax) to the shortest diameter (Dmin) of a cross section perpendicular to the fiber direction of each chopped carbon fiber bundle, namely Dmax/Dmin is from 6.0 to 18.0 (inclusive); and the orientation parameter of the single fibers present in the surface of each chopped carbon fiber bundle is 4.0 or less. |
申请公布号 |
WO2014081002(A1) |
申请公布日期 |
2014.05.30 |
申请号 |
WO2013JP81478 |
申请日期 |
2013.11.22 |
申请人 |
MITSUBISHI RAYON CO., LTD. |
发明人 |
OHTANI TADASHI;KIRIYAMA TAKAYUKI;NISHIMOTO YUKIO |
分类号 |
D06M15/564;C08J5/06;D06M15/227;D06M15/507;D06M15/55;D06M15/59;D06M101/40 |
主分类号 |
D06M15/564 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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