| abstract |
An oil composition is provided, wherein the oil composition not only improves the low operation caused by using an oil composition of which the main composition is silicone compound, but also improves the low physical properties caused by using an oil composition made of non-silicone compound. The oil composition for carbon fiber precursor acrylic fiber of the invention has 1 wt%-10 wt% of modified polydimethylsiloxane, wherein the modified polydimethylsiloxane has a unit containing specific alkyl chain, a unit selected from at least one group consisting of a unit containing specific polyethylene oxide chain, a unit containing specific polyglycerol chain and a unit containing specific polyether chain, and has an arbitrarily unit containing specific polydimethylsiloxyl alkyl chain. |