Application Prospects of a New Generation of Special Dispersants for Masterbatches in Plastic Masterbatches

Introduction: Masterbatch-specific composite dispersant is a new type of plastic masterbatch dispersion auxiliary, which belongs to the domestic initiative and fills the gap in the current domestic masterbatch special dispersant field. Its excellent dispersion performance and comprehensive performance not only improve the dispersion effect and processing characteristics of the plastic masterbatch, but also simplify the masterbatch formulation design and production process.

In the production process of plastic masterbatch, no matter whether it is filled with masterbatch, color masterbatch or water masterbatch (antifoaming agent), no one needs effective dispersion of inorganic powder or pigment filler to ensure that the masterbatch is in plastic. The role of the product in its application should be ensured to ensure the effective performance of the product. Traditionally, the dispersal of these inorganic powders or pigments has basically used lubricants (including internal lubricants and external lubricants) to coat or lubricate powders or pigments. The lubricants used are: paraffin, white oil, stearic acid, low molecular wax (PE wax), stearic acid salt (calcium stearate, zinc stearate, EBS, etc.). In order to achieve an effective lubrication and coating effect, it is generally necessary to use a plurality of lubricants for synergistic cooperation in the formulation of the master batch. This undoubtedly increases the formulation difficulty and the labor intensity of the ingredients; at the same time, due to the wide variety of additives , The quality is difficult to unite, and the rate of mistakes in ingredients is high. It also increases the risk of masterbatch stability. This leads to the same formulas and processes. At the same time, the quality of the masterbatch product deteriorates and the product is unstable. Masterbatch manufacturers have always had headaches. In addition, some lubricating additives (such as "stearic acid", etc.) will also appear in the product later additives precipitation, powder and other drawbacks, but also master batch manufacturers to solve the problem.

In order to solve the above-mentioned problems in the production of plastic master batches, some domestic master batch auxiliaries manufacturers have begun research and development in the use of master batch special dispersants, taking the “master batch special compound dispersant” developed and produced by Ke Runxin as an example. Through the application practice of a number of plastics-filled masterbatch and masterbatch companies at home and abroad, the effect of the masterbatch dispersion has been very good.

Masterbatch special composite dispersant has the following characteristics: 1, full-featured, super-strong dispersion. The composite dispersant combines multiple functions such as lubrication, dispersion, and coupling, overcoming the traditional dispersant auxiliaries (such as stearic acid, PE wax, and stearate, etc.) with relatively simple functions, unsatisfactory dispersion effects, and quality of masterbatch products. Unstable and other disadvantages. Excellent dispersion of inorganic fillers, greatly improving dispersion. 2, alternative and versatile. After using the composite dispersant, most of the other additives (such as PE wax, white oil, stearic acid, and stearate, etc.) can be saved, while the use of coupling agents can be greatly reduced or eliminated, and the masterbatch can be simplified and changed. The formulation of the ingredient system and the type of ingredient, the compounding material is more simple and easy to control accurately. 3, high product quality and stability. Adding the masterbatch, masterbatch or defoamer masterbatch produced by the composite dispersant, the system has excellent dispersibility, stable dispersion, and can effectively avoid the appearance of patterns, white spots, color dots, lines, rough surface particles, etc. During the processing process, there will be no phenomena such as carbon deposits on the die, thread catching, smoke, plugging, and the like; at the same time, phenomena such as precipitation (product powdering) affecting the product quality will be avoided. 4, quality and cheap. The composite dispersant is a masterbatch additive with truly super-dispersing properties. Its comprehensive dispersion performance is much higher than other common additives, and it is inexpensive and cost-effective.

With the continuous innovation of plastic masterbatch technology, the use of masterbatch-specific composite dispersants in the production of plastic masterbatches is a major trend in the future production of plastic masterbatch, and the development prospects are very broad.

Source: Huizhou Kerunxin Plastic Material Co., Ltd.