This material not only has the mechanical properties of general-purpose engineering plastics, but also has extraordinary toughness and plasticity. It can also perform plastic processing such as extrusion, stamping, and mold pressing at room temperature. Plastic injection molding at room temperature eliminates expensive molds, saves energy, and shortens cycle times. This project has carried out a brand-new exploration: on the basis of taking full advantage of the structure that has been formed from the recycled PET bottle flakes, through the reaction blending with other polymer materials to overcome the original defects of PET (such as impact resistance, forming processing Poor sex, etc.), making it a new kind of material. From the standpoint of superior performance and ease of processing of R&D materials, they can be used as engineering plastics to reduce the impact of impact on buildings and mechanical components, such as vehicles, automotive exterior panels, mobile phone cases, fashion, and medical protection products. The application prospects of many fields such as building and decorating materials, laptops, mobile phones and other portable instruments and meters, body armor, helmets, and other protective products and construction and decoration, etc.
Recycling of plastic bottles
With the rapid growth of the soft drink market, more and more waste PET bottles have caused serious white pollution, which has aroused the attention of the community. The research objective of this project is to develop a superplastic super tough low-cost new material characterized by the strength of recycled plastics, the extensibility of rubber, and the ease of processing of metals by using recycled PET flakes as the main raw material. In order to achieve the above goals, this project uses low-temperature solid-phase extrusion of recycled PET flakes in a twin-screw extruder, and then passes the twin-screw together with other engineering plastics with good toughness and thermo-elastomers and other additives as polymer bases. Extrusion of the reaction in the extruder to form a three-dimensional network structure, sandwich structure and other multi-level structure and added to the fixed. The product has super toughness and is easy to process and form. It is a new type of green material. This project has carried out a brand-new exploration: on the basis of taking full advantage of the structure that has been formed from the recycled PET bottle flakes, through the reaction blending with other polymer materials to overcome the original defects of PET (such as impact resistance, forming processing Poor sex, etc.), making it a new kind of material. Through the low-temperature solid-phase blending and reactive extrusion of the twin-screw extruder, a high-performance, promising polymer alloy material is formed with polycarbonate (PC). The project adopts novel low-temperature solid phase preparation technology and reactive extrusion technology, which maintains the highly oriented structure formed when PET bottle pieces are blown, and also limits the crystallization of PET in the extrusion granulation process. The impact properties of the alloys prepared from the recycled PET bottles are much higher than those of the alloys made from Virgin PET. This study improves the notch sensitivity of PET. The notched impact strength of the alloys is from 3 to 3 of the PET material. 5 kJ/m2 rises to the current 70 kJ/m2.