描述

TPU原始颗粒处理

优异的附着力，

低粘度，

良好的抗挠曲性，

优异的耐磨性，

高光泽，

优异的耐候性

TPU原始球团加工

产品详细信息

TPU原始颗粒处理

<1）在反应混合物进入混合区之前，没有明显的反应发生

（2）当反应材料离开混合区时，反应基本完成

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TPU Virgin Pellet Processing

Excellent adhesion,
Low viscosity,
Good flex resistance,
Excellent abrasion resistance,
High gloss,
Excellent weather resistance.

TPU Virgin Pellet Processing

Product Details

TPU virgin pellet processing

(1) Before the reaction mixture enters the Mix zone, no obvious reaction occurs;

(2) The reaction is basically complete when the reaction material leaves the Mix zone;

(3) The average residence time of the reactants in the Mix zone should be 6-50 seconds.

Of course, since the reaction of the reactants in the Mix zone is an exothermic reaction, a cooling device should also be provided to control its temperature to be maintained at 200-250°C. At the same time, the temperature of each section of the twin-screw reactor should be strictly controlled to ensure the The viscosity is basically constant.

TPU virgin pellet processing

Commonly used catalysts are titanates, organotins, and tertiary amines. The most commonly used is dibutyl tin dimonthly silicate. The amount of catalyst added is also related to the activity of the raw materials and should be determined through experiments. Generally, it should be controlled within 1-1000 ppm of the amount of polyol.

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