To reduce viscosity of raw starch size and enhance the adhesion ability to pure cotton yarn, starch reducing viscosity agent SPU was developed by three agents and suitable ratio.
The effect of monomer ratio, the kind and concentration of keying agent on adhesion strength is also studied.
研究了单体配比、增粘剂种类、增粘剂用量对剥离强度的影响。
3
When under the same axle load, if the wheel rolling speed gets higher, the adhesion coefficient declines as the ratio of the mean asperities contact pressure to the total pressure becomes smaller.