Grafting material(compatibilizers) pelletizing line

Graft compatibilizers give polarity and adhesion to the polymer(such as PE, PP, POE etc) mainly through the action of a maleic anhydride (MAH) group or a glycidyl methacrylate (GMA) group. Improve the interfacial bonding force between the polymer and glass fiber, calcium carbonate and other inorganic fillers, the plant fibers such as wood powder, straw etc, thereby significantly improving the mechanical properties of the composite material.

The main raw materials for the production of graft compatibilizer are: resin, graft monomer, initiator and other additives, through the heating and shearing in the extruder, the grafting monomer is grafted with the polymer under the action of the initiator.

Equipment Characteristics

1. High torque extruder. It is suitable for high melt viscosity of graft material.

2. Adopt Loss-in-weight feeding system, feed the resin granules, processing additives and diluted initiator liquid steply to meet the high accurate requirement to proportion of the initiator and polymer.

3. The barrel and screw with large L/D: L/D=48:1~52:1, provide longer residence time, which is conducive to the completion of melting homogenization and grafting reaction, and 1~2 sections of vacuum degassing barrel is equipped to eliminate by-products in reaction to reduce product odor.

4. The pelletizing method is selected according to the melt characteristics. Different raw materials and ratios in the formulation have large differences in melt characteristics. The higher hardness products can select water cooling strand pelletizer, and the low-viscosity and easy-adhesive products can adopt under water pelletizer.

The core extruder equipment includes parallel twin screw compounding extruder, reciprocating

compounding kneader, double rotor compounding extruder, SCP high viscosity self cleaning

reactor and large capacity devolatilizer, etc.

At the same time, based on the above main extruder, the design and manufacture of a

complete set of compounding pelletizing production line equipment and compounding

extrusion forming production line equipment can be realized. It is mainly used in the fields

of engineering plastics, modified plastics, wire and cable materials, rubber, packaging,

building medical chemical industry, chemical fiber textile, household appliance and other

industries (see the application case for details).

The existing factory area of the company is 46500 m2 (of which the parent company is

38000m2, and the subsidiary (Nanjing Cenmen) is 8500m2), The core parts and system

of the extruder are designed and manufactured by the company, such as barrel, screw,

gear box, etc. The company has advanced NC machining center, NC screw grinder,

CNC machine tool and other machining equipment. Equipped with Swiss imported

three-coordinate detector and Japanese imported spectral detector and other

advanced inspection and testing equipment. There are complete quality control means

and system from processing to testing, which fully ensure the stability and reliability of

product quality.

The extruders produced by Cenmen company are exported to nearly 40 countries, such as

Germany, Russia, belarus, Japan, Korea, Israel, Ukraine, magiddon, Iran, Thailand, Indonesia,

Brazil, India, Mexico, South Africa, etc.