摘要:
The present invention relates to a drawn PET fiber including 90 mol% or more of PET, of which the cross-linking density is 3.0E+22 to 8.0E+22 ea/cm 3 after heat-treating the same at 230°C for 1 minute in a taut state under the initial load of 0.02 g/d, to a PET tire cord, including the drawn fiber and to a pneumatic tire, including the tire cord.
摘要:
The present invention relates to a drawn PET fiber that can provide a cap ply cord and the like showing more improved modulus and good dimensional stability, a PET tire cord, and a tire including the same. The drawn PET fiber may be a fiber including 90 mol% or more of PET, of which the crystallinity is 53 % or more, the amorphous orientation factor (AOF) is 0.15 or less, and the birefringence index is 0.14 to 0.16, after heat-treating the same at 230 for 1 minute under the initial load of 20g/1000d.
摘要:
The present invention relates to a PET tire cord, of which a shrinkage behavior index (SBI) defined by the following Calculation Formula 1 is 0.1 (g/d)/% or more under the conditions of the load of 0.0565 g/d and the temperature of 180°C: Shrinkage behavior index SBI = Shrinkage force g / d / Shrinkage rate % , to a method of preparing the same and to a pneumatic tire including the same.
摘要翻译:本发明涉及一种PET轮胎帘线,其中在负荷为0.0565g / d的条件下,由以下计算式1定义的收缩行为指数(SBI)为0.1(g / d)/%以上, 180℃的温度:收缩行为指数SBI =收缩力g / d /收缩率%,其制备方法和包括该收缩率的充气轮胎。