Masterbatch industry technical level and development direction

In the variety of development, China's masterbatch manufacturers have developed a fiber masterbatch, film masterbatch, wire and cable with masterbatch, polyolefin masterbatch, PVC masterbatch, injection products with color masterbatch grain. The future masterbatch will be towards the multi-functional, high color content and high-tech content direction, mainly in the following areas:

1

The development of multi - functional masterbatch

Plastic or chemical fiber products often need products at the same time with a variety of performance, coloring and other functions into one masterbatch, to improve the performance of plastic or chemical fiber products, simplify its production process of great significance. Multi-functional masterbatch includes: used in coal products, coloring, flame retardant, anti-static multi-functional masterbatch, used in chemical fiber fabric coloring, antibacterial, thermal insulation, conductive masterbatch, used in plastic products, coloring, Tablets and so on.

2

Development of high performance engineering plastics and thermoplastic elastomer masterbatch

China's high-performance engineering plastics and thermoplastic elastomers developed rapidly, such as thermoplastic fluorine plastic and thermoplastic polyurethane, with the adaptation of its products also need to use masterbatch coloring. Such as polyfluoroethylene propylene masterbatch, polyvinylidene fluoride masterbatch, thermoplastic polyurethane masterbatch gave the masterbatch industry put forward new challenges. The preparation of these masterbatch in the choice of raw materials, processing technology and the use of conditions with the traditional masterbatch are very different.

How to adapt to high-performance engineering plastics ultra-high temperature processing performance, thermoplastic elastomer special processing rheological properties will be faced with technical problems.

3

The development of large quantities of masterbatch for special grades

With the rapid development of China's plastic products industry, masterbatch production will be greater than in the past. Some masterbatch varieties will no longer directly supply downstream plastic products manufacturers, but directly to the upstream petrochemical enterprises, with masterbatch and resin directly made of color modified materials, such as pipe materials, automotive materials and so on. The formation of this mode of production so that the past has always been to small quantities, multi-species characteristics of the masterbatch production model to part of the transformation of a single species, large-scale production model. Changes in production patterns will also challenge the masterbatch technology, how to ensure long-term production of masterbatch uniformity, how to adapt to large-scale screw granulation technology will be the masterbatch to solve the technical problems.

4

Preparation of dispersant and additive for masterbatch

With the development of multi-functional masterbatch, high-performance engineering plastics, thermoplastic elastomer masterbatch, special grade high-quality masterbatch, with the development of dispersants and additives will also be the future masterbatch industry The important task. Such as the development of complex dispersant, high temperature dispersant, processing rheological performance regulator.

The quality of masterbatch quality evaluation criteria

The quality of plastic masterbatch assessment standards, and standard samples are generally controlled, such as masterbatch. Of course, you can also use the following aspects of comparison.

(1) Appearance color: the size of the size of the cylindrical particles or square particles, whether the color impurities.

(2) moisture and its volatile: should be less than a certain value, such as the provisions of 0.2% -0.3%.

(3) density: such as 1.7-1.9g / cm3.

(4) melt flow rate: should be greater than a certain value, such as set to 0.5g / 10min.

(5) specific professional indicators: such as flame retardant masterbatch should indicate the combustion of what level, such as UL-94V-0 level, containing halogen and so on.

(6) added: such as adding 2% -6%, 6% -12% and so on.

Which is important to shape the processing of the pointer, that is, melt flow rate and professional indicators.

It is also the use of torque-type rheometer, the pressure of the filter to determine the value of DF to assess the quality of masterbatch.

Masterbatch technical indicators are generally: density 1.7g / cm3, water 0.2%, melt flow rate 0.5 ~ 10g / 10min, particle size 3 × 3 × 4mm.