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一般而言,单螺杆挤出机的混炼和排气功效比不上双螺杆挤出机。人们已经了解到,能否形成多点拉伸流动场是影响混炼效果好坏的关键所在。尤其是逆向拉伸流动场对分散混炼而言,可形成高临界剪切应力,所以说,逆向拉伸流动场对分散混炼过程是有益的。
In general, single-screw extruder mixing and exhaust efficiency than the twin-screw extruder. It has been learned that the key to influencing the mixing effect is how to form a multi-point stretching flow field. Especially the reverse stretching flow field can form high critical shear stress for the dispersion mixing, so the reverse stretching flow field is beneficial to the dispersion mixing process.