A processing technology for degradable plastics

Abstract

The invention relates to the technical field of plastic processing, in particular to a processing technology for degradable plastics, which is prepared by the following method: (1) adding nano-FeSO 4 solution and Na 2 CO 3 solution and nano-Si 3 N 4 Mix, ultrasonically disperse at 400-500Hz for 20-30min, dry at 40-50°C, grind into powder, then place in a muffle furnace at 400-500°C, under N 2 sintering, followed by adding chitosan, CaCO 3 , EPDM copolymer, poly-β-hydroxybutyrate and bifenthrin are mixed and ground into powder, then sodium tripolyphosphate solution and guanidine hydrochloride solution are added, stirred evenly, and dried to obtain a mixed powder; ( 2) Mix epoxy resin, glycerin, polylactic acid and the mixed powder in step (1), extrude with a twin-screw extruder, and then enter into an injection molding machine for molding. The invention prepares degradable plastics which are not easy to mildew, age and be bitten by insects.

Description

technical field [0001] The invention relates to the technical field of plastic processing, in particular to a processing technology for degradable plastics. Background technique [0002] Plastic is the most common and commonly used material in daily life. In order to ensure the sustainable development of the environment, it is necessary to reduce the amount of plastic, especially food, medicine packaging, and the use of plastic products in shopping malls. Pollution, degradable plastics enter people's lives, but most of the degradable plastics are prepared from waste plant fibers, starch and other raw materials, and the above raw materials are not only in the process of use, they have poor toughness, poor load-bearing capacity, and heat resistance. Poor, easy to be aged, damp, mildewed and destroyed by other insects, inconvenient to use and store, therefore, the existing technology needs further improvement. SUMMARY OF THE INVENTION [0003] The purpose of the present inve...

AI Technical Summary

Problems solved by technology

[0002] Plastic is the most common and commonly used material in daily life. In order to ensure the sustainable development of the environment, it is necessary to reduce the amount of plastic used, especially in food, pharmaceutical packaging, and shopping malls. Plastic products are unavoidable. In order to reduce environmental impact Pollution, degradable plastics enter people's lives, but most degradable plastics are prepared from waste plant fibers, starch and other raw materials, and the above raw materials are not only in the process of use, but also have poor toughness, poor load-bearing capacity, and heat resistance Poor, easy to age, wet, moldy and damaged by other insects, inconvenient to use and store, therefore, the existing technology needs further improvement