ã€China Aluminum Industry Network】 As a special kind of powder coating, anti-static powder coating has the characteristics of low cost, high safety performance, environmental protection, and easy operation. It also attaches special anti-static functions. With the development of different fields such as electronic information industry, chemical safety industry and coal explosion-proof industry, the application of anti-static powder coatings has become increasingly widespread. With the increase in people's awareness of daily electrostatic hazards, anti-static powder coatings are also suitable for home appliances, small home appliances, and power distribution cabinets because of their aesthetics and simplicity.
Preparation of a New Antistatic Powder Coating
1.1 The traditional preparation process
The traditional anti-static powder coating uses 35% to 55% of film-forming resin, 10% to 30% of conductive material, 15% to 30% of filler, and 1% to 5% of auxiliaries. After mixing, extrusion and pressing Pieces, grinding (grinding) and other steps were made. Among them, the conductive material is added during the production of the powder coating, which not only makes the utilization efficiency of the conductive material low, but also has a great influence on the basic performance of the final coating because of the high oil absorption value of the conductive material.
The traditional conductive materials for anti-static powder coatings are mainly carbon black and metal materials. Carbon black not only pollutes and is troublesome to operate, but because of its high addition amount, it will greatly reduce the impact strength, adhesion and wear resistance of the powder coating itself. In addition, powder coatings using carbon black as a conductive material cannot be tinted (only black), which greatly reduces the decorative properties of coatings; while anti-static powder coatings using metal materials as conductive materials are more colorful. However, its relatively high density and high price have greatly increased the cost of paint production. In addition, these traditional conductive materials, due to their own characteristics of easy to discharge, direct addition will greatly affect the effect of powder coating powder, and therefore basically negated the external addition method.
In addition, the traditional anti-static powder coating preparation process has high requirements for producers and constructors. Because of the low resistance of the conductive material itself and the insulating property that is needed when the paint is actually applied, it is a pair of irreconcilable contradictory bodies, so the upper powder rate of the antistatic powder paint is sacrificed, and the coating thickness of the workpiece cannot be guaranteed. More importantly, the resistance of such anti-static powder coating cannot be controlled, and its designed resistance can only be less than 104Ω. This is in conflict with the current standard of 106–9Ω proposed by ESD protection, and there is a considerable potential for electrostatic safety. .
For this reason, there is an urgent need for a new anti-static powder coating preparation process, and this new process will be improved in many aspects such as simplicity, aesthetics, stability, and functionality. Junjiang Science and Technology Co., Ltd. has always been committed to the development of new anti-static materials, and has invested heavily in the technical innovation of anti-static powder coatings, and successfully launched the BC-E series of conductive particle products, paving the way for a new anti-static powder coating preparation process. the way.
1.2 new preparation process
The new anti-static powder coating preparation process uses conductive particles as the conductive material, and uses externally added conductive materials to completely separate the cumbersome production of powder coatings and the addition of conductive materials, which not only avoids problems such as contamination in the production process of anti-static powder coatings. , greatly reducing the control of the difficulty and inventory costs, but also because of the convenience of the advantages of the external mix of the product's batch stability has a better guarantee. As a new antistatic powder coating preparation method, the factory only needs to fully mix ordinary powder coatings with conductive particles according to a designed ratio, and thus an antistatic powder coating product can be conveniently prepared.
The new anti-static powder coating preparation process not only greatly simplifies the production process of anti-static powder coating, but also helps spray paint manufacturers to prepare anti-static powder coatings themselves. Customers can simply use a simple mixing device to complete the mixing of ordinary powder coatings and conductive particles, compared with antistatic powder coatings. The conductive particles themselves do not affect the basic properties of the paint, including the color, adhesion, etc., and the spraying process can be completed only by a normal spraying process.
Wheel Bearing For Daihatzu,Car Hub Bearing,Hub Bearing Cost,Car Bearings Cost
SHAOXING ZHENGHONG AUTO PARTS CO.LTD , https://www.kontinental-bearing.com