Behind the development of conductive titanium dioxide products for powder coatings

Shenzhen Zhongherun Technology Co., Ltd. recently developed a
nomeometer conductive titanium white powder
for

. In order to facilitate readers to better understand and understand the product, the author followed up with an interview with Li Wangyang manager of Zhonghe Run Technology, to learn more about the story behind this conductive titanium dioxide product.
according to the introduction, because the production of powder must go through the melting temperature of the twin screws, the vast majority of anti-static aids on the market, including imported conductive titanium dioxide powder, by the impact of high shear force and other conditions will be damaged the powder structure and surface bread cover, and so on, and then its conductive capacity has been seriously weakened
China
. For a long time, due to material and technical limitations, the anti-static of powder coatings can only be made in black, dark or mixed colors (light-bottom mixed conductive particles).
therefore, the successful development of this new type of conductive titanium dioxide means not only breaking the monopoly of foreign brands, but more importantly, success
solves the problem that powder coatings cannot produce white and color anti-static powders.
ash point mixed plane anti-static powder (10 of the 7th party) mixedgrain anti-static powder (10 of the 7-9th party)
Li manager introduced, when the original development of this product, the domestic understanding of anti-static powder coating this piece has not yet begun, but some electronic equipment manufacturers in Shenzhen at the time of export encountered the customer's request. At that time, the use of South Korea's production of gray base powder and black anti-static sand point program, the price is very high not to say, spraying effect is also very unstable, because of the separation of point powder and base powder, yin and yang color is extremely serious. Take a batch of document cabinets under the Space Academy in 2012 using gray bottom and black dot scheme as an example, there is an unacceptable yin and yang color phenomenon, and then after several tosses, or with the Golden Horse spray gun artificial very small amount of powder, slow grinding out of fine work to achieve the goal, but limited by inefficiency, can not meet market demand! Another large international factory is said to be the use of internal stainless steel powder program, but according to the measured, anti-static effect is also at a critical value, very unsatisfactory! In order to change this phenomenon and run decided to develop a solid color suitable for powder coating conductive anti-static products to!
The most beginning of the idea of melium or the use of post-added methods, such as to conductive carbon black inside with an extra amount of titanium dioxide to make a very fine dot powder, the film notice mixed crush, and then the use of the domestic has not used several binding process to bind! Then start from the equipment, double screw can not change a single screw, a single screw can not change the screw gap! Even in the back of an old machine extrusion end opened the feed hole, hoping to reduce the damage to conductive additives . . .
In terms of process, the method of dry tempering, internal extrusion, plus, supercritical fluid mixing was tried. Carbon black, graphite, silver powder, carbon fiber, nickel powder, zinc powder, iron powder... I've tried no fewer than a few hundred things! But either the effect is not ideal, or anti-static effect is not good, or the color is too dark, or the cost is too high, in short, there is no way to achieve industrial production!
white solid anti-static powder coating (10 of 8 squares)
after a thousand choices! A new type of conductive titanium dioxide finally achieved the desired effect: directly in the powder coating to add 5-15% that can reach 10 4-9 times, and low cost, convenient processing, the selectivity of resin additives is not high! Due to the use of a new coating process and shell core structure, this product compared to conventional imported conductive titanium white powder and conductive mica and other products, with structural stability and high shear resistance, product dispersion in the paint film to form a mesh conductive path! After the twin screws squeeze out the dissolved mixture several times or have conductive/anti-static properties. The test inside the powder coating is as follows:
In addition, this new conductive titanium dioxide application method is simple, directly in the existing formula can be added, do not change the original process and process! It is the top choice for powder coatings and various paints for the production of white and color anti-static/conductive coatings.