Biodegradable Sheet Material Compounding Extrusion Calendering Forming Production Line

Application Illustration:

Application of biodegradable starch sheets in food boxes and packaging

Formulation:

Technical Equipment Illustration:

All raw materials requires deep drying process, and during the compounding process full dispersion, distribution and even mixing effect is required for the final product is qualified for the physical properties standard such as tensile strength and elongation at break. The extrusion system is equipped with co-parallel twin screw extruder, which adopting high torque, L/D=48-52:1, and special optimized screw combination for temperature control that preventing material predegradation. Lower stage is equipped with single screw extruder, to achieve cooling and pressure building effect, conducive to sheet extrusion.

For increasing the final product tensile strength and elongation at break properties and fulfil more efficient forming process, trace amount of PP or PE polymer will be added to achieve the starch-base degradable masterbatch. Such degradable masterbatch produced by CENMEN can achieve up to 90% degradation rate (70% degradation rate for normal degradable masterbatch), and it can be up to the degradation standard for various national and regional industries. Furthermore, this degradable masterbatch production process and formulation is basically identical to the full-degradable masterbatch.

Currently, this biodegradable sheet material production line from CENMEN has been wildly applied in Jiangsu, Guangdong and etc. areas, also exported to India, Australia, Ukraine, Russia and etc. countries.

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.