Study on the Rheological Behavior of Color Masterbatch Used in Polypropylene Processing|Tengzhou Junchi Textile Co., Ltd.PP yarn

Polypropylene textile yarn grade masterbatch requirements harsh conditions, a slight negligence will affect the product quality. Polypropylene processing in the back of the head, hair, silk and color silk, the impact of textile can be, reduce product quality. In order to solve the problems in the spinning process and stabilize the quality, the masterbatch is applied to the rheological behavior of polypropylene processing.
The experimental analysis shows that the effect of the masterbatch application is not only the effect of a certain component; it is closely related to the carrier of the pigment and its masterbatch, the spinning material and the equipment used by the user. Whether it is mixed feed, or injection method must be through the melt extrusion process, with the heat, shear, shear rate and other related rheological behavior are closely linked.
The results show that:
(1) The difference in rheological properties of the masterbatch and the spinning base melt at the same spinning temperature is a key factor affecting the spinning process and reducing the quality of the product.
(2) the color masterbatch at a certain temperature rheological properties in addition to the pigment (dye) performance, but also do not control the carrier MFR and k worthy of a stable point.
(3) different spinning process, different spinning base material requires a corresponding carrier of masterbatch, conventional spinning and high-speed spinning should form a series of product use instructions.
In summary, it can be concluded that the rheological law of the masterbatch used in polypropylene processing can be used to characterize the polypropylene spinning material and the masterbatch used. Their availability, in addition to the melt flow rate (MFR), the k value and n value can be used as a characterization parameter.