Iranian Firm Produces Shopping Bags with 12 MPa Strength
The device combines rotational and reciprocating motion and creates nanometer particles in the polymer matrix and prevents the formation of powder lumps or clumps, as a result of which the quality of polymer products like nylons and industrial alloys increases significantly.
The knowledge-based company has succeeded in producing an indigenous asymmetric kneader extruder that can create nanometer-sized particles in the polymer matrix, which prevents the formation of powder lumps or clumps inside the polymer.
Calcium carbonate compounds produced with the help of a kneader extruder are of very high quality and result in the production of nylons containing 70% calcium carbonate with a tensile strength of 12.2 MPa, which can also be used in shopping bags.
In the production of polymer alloys, an alloy containing nano-additives along with three grades of linear, light and heavy polyethylene using a kneader has produced a sample with a mechanical strength of 19.5 MPa, while the mechanical strength of the alloy produced with a twin-screw extruder has been achieved at only 6.5 MPa.
In a relevant development in 2024, Iranian researchers at a knowledge-based company had also succeeded in manufacturing a high-torque twin-screw extruder for the production of polymer nanocomposites.
“The high-torque twin-screw extruder has been designed and built for the first time to produce polymer nanocomposites. The device can make polymer nanocomposites and polymer granules on a nanoscale,” Ali Honarian, the managing director of the knowledge-based company, told ANA.
“This device is used in the compound and masterbatch industries,” he added.
“This device, the prototype of which we have now built, is a heavy and complex device and requires a high level of working capital, which is why countries that own this technology only build a limited number of these devices per year,” Honarian said.
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